CN103545478B - Injecting electrolytic solution system and electrolyte filling method - Google Patents
Injecting electrolytic solution system and electrolyte filling method Download PDFInfo
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- CN103545478B CN103545478B CN201210253645.7A CN201210253645A CN103545478B CN 103545478 B CN103545478 B CN 103545478B CN 201210253645 A CN201210253645 A CN 201210253645A CN 103545478 B CN103545478 B CN 103545478B
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- 239000003792 electrolyte Substances 0.000 title claims abstract description 158
- 239000008151 electrolyte solution Substances 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000012530 fluid Substances 0.000 claims abstract description 238
- 239000007788 liquid Substances 0.000 claims abstract description 123
- 238000002347 injection Methods 0.000 claims description 31
- 239000007924 injection Substances 0.000 claims description 31
- 238000007599 discharging Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 12
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 9
- 229910052744 lithium Inorganic materials 0.000 description 9
- 238000001802 infusion Methods 0.000 description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Filling, Topping-Up Batteries (AREA)
Abstract
A kind of injecting electrolytic solution system and electrolyte filling method, have: electrolyte container, stores electrolyte, and export electrolyte by the pressurization of presser unit; A fluid reservoir, is connected with electrolyte container by pipeline, and stores the electrolyte supplied by electrolyte container; Secondary fluid reservoir, is connected with a fluid reservoir by pipeline, and stores by the electrolyte of a fluid reservoir supply; Liquid injecting mouth, is connected with secondary fluid reservoir by pipeline, and is injected in battery case by the electrolyte in secondary fluid reservoir; Circulating pump, is arranged on the pipeline between connection fluid reservoir and secondary fluid reservoir, is supplied by the electrolyte in a fluid reservoir to secondary fluid reservoir; And topping-up pump, be arranged on the pipeline between connecting secondary fluid reservoir and liquid injecting mouth, supplied to liquid injecting mouth by electrolyte in secondary fluid reservoir, injecting electrolytic solution system also has: circulation pipe, and escaping gas and electrolyte in secondary fluid reservoir are flowed to a fluid reservoir.
Description
Technical field
The present invention relates to a kind of liquid injection system for injecting electrolyte to batteries such as lithium batteries, and electrolyte filling method.
Background technology
Lithium battery is widely utilized due to advantages such as its volume are little, capacitance is large.Lithium battery manufactures in the following way: after being accommodated in battery case by pole plate group, injects electrolyte, then closes the peristome of battery case into air-tight state.
As recorded in patent documentation 1, existing injecting electrolytic solution system comprises successively as shown in the accompanying drawing 4 of the application: the electrolyte container 1 of electrolyte, flowmeter 2, Pneumatic valve 3, fluid reservoir 4, valve 5, metered dose infusion pump 6, liquid injecting mouth 7 and pipeline etc. are housed.In electrolyte container 1, pass into nitrogen and pressurize, open pneumatic operated valve, electrolyte is pressed in fluid reservoir 4.Then, open valve 5, by metered dose infusion pump 6, the electrolyte in fluid reservoir 4 is injected in lithium battery with ormal weight.
Generally, the volume of fluid reservoir 4 is 10L, and injecting electrolytic solution system needs the electrolyte multiple lithium batteries be on diverse location being injected continuously to ormal weight, therefore, the fluid reservoir 4 that volume is larger is not easy to mobile, this sets to obtain long enough with regard to needing by from fluid reservoir 4 to the pipeline of liquid injecting mouth 7, can give fluid injection by mobile metered dose infusion pump 6 and liquid injecting mouth 7 and pipeline to the lithium battery be on diverse location.
But to be pressed into from electrolyte container 1 through flowmeter 2 containing more bubble in the electrolyte in fluid reservoir 4, these bubbles enter into the longer pipeline from fluid reservoir 4 to liquid injecting mouth 7, be gathered into larger bubble, thus have an impact to reservoir quantity by minute bubbles.And the in-out end pressure imbalance of fluid reservoir 4, causes the pressure of the in-out end of metered dose infusion pump 6 also uneven.Therefore, when each regulation reservoir quantity is about 2g, be subject to the impact of bubble and pressure imbalance, the actual reservoir quantity be injected in battery creates deviation, the deviation of appearance ± 0.05g (cpk1.14/ σ 0.08).Now, carry out fluid infusion with regard to needing to the battery of the electrolyte not injecting q.s, the fluid infusion rate in this situation is 7.8%.
For above-mentioned situation, have and as described in Patent Document 2 lithium battery is loaded closed container, this closed container is vacuumized to the technology of the bubble removed in battery case, as described in Patent Document 3 fluid reservoir 4 is vacuumized to the technology etc. of the bubble removed in this fluid reservoir 4 in addition.
But above-mentioned patent documentation 1 ~ 3 does not all relate to how reducing bubble in the longer pipeline from fluid reservoir to liquid injection port.
Patent documentation 1:ZL200820185285.0
Patent documentation 2: Japanese Patent No. 4625232 publication
Patent documentation 3: Japanese Unexamined Patent Publication 2004-247120
Summary of the invention
The present invention be directed to above-mentioned situation to make, object is to provide a kind of lithium battery electrolytes liquid injection system and electrolyte filling method, reduces the bubble produced in injection process, the stable injection exactly lithium battery being carried out to electrolyte.
Injecting electrolytic solution system of the present invention, injects electrolyte, it is characterized in that having: electrolyte container (11) in battery case (19), stores electrolyte, and exports electrolyte by the pressurization of presser unit (10); A fluid reservoir (14), is connected with above-mentioned electrolyte container (11) by pipeline, and stores the electrolyte supplied by above-mentioned electrolyte container (11); Secondary fluid reservoir (16), is connected with an above-mentioned fluid reservoir (14) by pipeline, and stores the electrolyte supplied by an above-mentioned fluid reservoir (14); Liquid injecting mouth (18), is connected with above-mentioned secondary fluid reservoir (16) by pipeline, and is injected in battery case (19) by the electrolyte in above-mentioned secondary fluid reservoir (16); Circulating pump (15), be arranged on the pipeline between the above-mentioned fluid reservoir (14) of connection and above-mentioned secondary fluid reservoir (16), the electrolyte in an above-mentioned fluid reservoir (14) is supplied to above-mentioned secondary fluid reservoir (16); And topping-up pump (17), be arranged on the pipeline between the above-mentioned secondary fluid reservoir (16) of connection and above-mentioned liquid injecting mouth (18), electrolyte in above-mentioned secondary fluid reservoir (16) is supplied to above-mentioned liquid injecting mouth (18), above-mentioned injecting electrolytic solution system also has: circulation pipe (S4), an above-mentioned fluid reservoir (14) being communicated with above-mentioned secondary fluid reservoir (16), flowing to an above-mentioned fluid reservoir (14) for making escaping gas in above-mentioned secondary fluid reservoir (16).
According to above-mentioned injecting electrolytic solution system, owing to being provided with the secondary fluid reservoir with cushioning effect, and this secondary fluid reservoir is connected by circulation pipe with a fluid reservoir, therefore, the length of the pipeline between fluid reservoir to liquid injecting mouth can be shortened, reduce the bubble be mixed in electrolyte, reliablely and stablely quantitatively inject.Further, secondary fluid reservoir, topping-up pump and liquid injecting mouth can also be made together to move, be suitable for carrying out fluid injection to multiple battery case being in diverse location.
In above-mentioned injecting electrolytic solution system, an above-mentioned fluid reservoir (14) is provided with the first liquid level sensor (26) detected the liquid level of the electrolyte in this fluid reservoir (14), above-mentioned injecting electrolytic solution system also has control device, when the liquid level be judged as in an above-mentioned fluid reservoir (14) according to the signal from above-mentioned first liquid level sensor (26) is the first regulation lower position, open presser unit (10), by the supply in an above-mentioned fluid reservoir (14) of the electrolyte in above-mentioned electrolyte container (11), when the liquid level be judged as in an above-mentioned fluid reservoir (14) according to the signal from above-mentioned first liquid level sensor (26) is the first set upper limit position, above-mentioned control device cuts out presser unit (10), stop supply electrolyte in an above-mentioned fluid reservoir (14).
According to above-mentioned injecting electrolytic solution system, the electrolyte in a fluid reservoir can be made to remain at ormal weight, prevent the impact of the too much or very few pressure on a fluid reservoir in-out end of electrolyte, and reduce the possibility that bubble is mixed into.
In above-mentioned injecting electrolytic solution system, above-mentioned secondary fluid reservoir (16) is provided with the second liquid level sensor (36) detected the liquid level of the electrolyte in this secondary fluid reservoir (16), above-mentioned injecting electrolytic solution system also has control device, when the liquid level be judged as in above-mentioned secondary fluid reservoir (16) according to the signal from above-mentioned second liquid level sensor (36) is the second regulation lower position, ON cycle pump (15), by the supply in above-mentioned secondary fluid reservoir (16) of the electrolyte in an above-mentioned fluid reservoir (14), when the liquid level be judged as in above-mentioned secondary fluid reservoir (16) according to the signal from above-mentioned second liquid level sensor (36) is the second set upper limit position, above-mentioned control device cuts out circulating pump (15), stop supply electrolyte in above-mentioned secondary fluid reservoir (16).
According to above-mentioned injecting electrolytic solution system, the electrolyte in secondary fluid reservoir can be made to remain at below set upper limit position, more than the second regulation lower position second, prevent the impact of the too much or very few pressure on secondary fluid reservoir in-out end of electrolyte, and reduce the possibility that bubble is directly outputted to liquid injecting mouth by topping-up pump.
In above-mentioned injecting electrolytic solution system, above-mentioned control device is when starting injection phase according to the liquid level that the signal from above-mentioned second liquid level sensor (36) is judged as in above-mentioned secondary fluid reservoir (16), topping-up pump (17) opened by above-mentioned control device, injected to battery case (19) by electrolyte in above-mentioned secondary fluid reservoir (16) via above-mentioned liquid injection port (18), above-mentioned beginning injection phase is higher than above-mentioned second regulation lower position.
According to above-mentioned injecting electrolytic solution system, can prevent topping-up pump from bubble is directly outputted to liquid injecting mouth.
In above-mentioned injecting electrolytic solution system, electrolyte liquid inlet conduit in an above-mentioned fluid reservoir (14) extends to below above-mentioned first regulation lower position, and the end of above-mentioned circulation pipe (S4) in an above-mentioned fluid reservoir (14) extends to more than the first set upper limit position in the tank body (21) of this fluid reservoir (14).And, electrolyte liquid inlet conduit in above-mentioned secondary fluid reservoir (16) extends to below above-mentioned second regulation lower position, and the end of above-mentioned circulation pipe (S4) in above-mentioned secondary fluid reservoir (16) extends to more than the second set upper limit position in the tank body (31) of this secondary fluid reservoir (16).
According to above-mentioned injecting electrolytic solution system, bubble can be prevented to be mixed into electrolyte.
In above-mentioned injecting electrolytic solution system, above-mentioned electrolyte container (11), an above-mentioned fluid reservoir (14), above-mentioned secondary fluid reservoir (16) are closed containers.Further, an above-mentioned fluid reservoir (14) also has overfall, for discharging the gas in this fluid reservoir (14).Further, above-mentioned circulation pipe (S4) is provided with unidirectional valve, stops gas and electrolyte to flow to above-mentioned secondary fluid reservoir (16) from an above-mentioned fluid reservoir (14).
According to above-mentioned injecting electrolytic solution system, can prevent impurity and gas from entering into electrolyte.
In addition, present invention also offers a kind of electrolyte filling method of electrolyte, be applied in injecting electrolytic solution system, electrolyte is injected in battery case (19), it is characterized in that, have: by the pressurization of presser unit (10), make the step that the electrolyte that stores in electrolyte container (11) supplies to fluid reservoir (14); By the step that circulating pump (15) makes the electrolyte in an above-mentioned fluid reservoir (14) supply to above-mentioned secondary fluid reservoir (16); And by topping-up pump (17), make the step that the electrolyte in above-mentioned secondary fluid reservoir (16) injects in battery case (19) to above-mentioned liquid injecting mouth (18) supply and by this liquid injecting mouth (18), in above-mentioned injecting electrolytic solution method, escaping gas in above-mentioned secondary fluid reservoir (16) is flowed to an above-mentioned fluid reservoir (14) by circulation pipe (S4).
According to above-mentioned injecting electrolytic solution method, be re-introduced in battery case owing to making electrolyte via secondary fluid reservoir, and make the gas in secondary fluid reservoir and partial electrolyte liquid be back in a fluid reservoir via circulation pipe, therefore, the length of the pipeline between fluid reservoir to liquid injecting mouth can be shortened, reduce the bubble be mixed in electrolyte, reliablely and stablely quantitatively inject.Further, secondary fluid reservoir, topping-up pump and liquid injecting mouth can also be made together to move, be suitable for carrying out fluid injection to multiple battery case being in diverse location.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of injecting electrolytic solution system of the present invention.
Fig. 2 is the structure chart of a fluid reservoir of the present invention.
Fig. 3 is the structure chart of secondary fluid reservoir of the present invention.
Fig. 4 is the schematic diagram of injecting electrolytic solution system of the prior art.
Symbol description
10 pressue devices, 11 electrolyte containers, 12 flowmeters, 14 fluid reservoirs, 15 circulating pumps, 16 2 fluid reservoirs, 17 topping-up pumps, 18 liquid injecting mouths, 19 battery cases, S1 ~ S3 pipeline, S4 circulation pipes
21 tank bodies, 22 liquid inlets, 23 liquid outlets, 24 circulation pipe entrances, 25 overfalls, 26 first liquid level sensors
31 tank bodies, 32 liquid inlets, 33 liquid outlets, 34 circulation pipes outlet, 36, the second liquid level sensor
Embodiment
Accompanying drawing 1 ~ 3 pair of the specific embodiment of the present invention is utilized to be described below.
Fig. 1 is the schematic diagram that injecting electrolytic solution system of the present invention is shown.
This injecting electrolytic solution system comprises: the circulation pipe S4 depositing the electrolyte container 11 of electrolyte, the fluid reservoir 14 be communicated with electrolyte container 11 through pipeline S1, the secondary fluid reservoir 16 be communicated with fluid reservoir 14 through pipeline S2, the liquid injecting mouth 18 be communicated with secondary fluid reservoir 16 through pipeline s3 and fluid reservoir 14 be communicated with secondary fluid reservoir 16.
And, also be provided with the pressue device 10 pressurizeing to export electrolyte to electrolyte container 11, and the flowmeter 12 and valve B1 of measuring flow of electrolyte are set on pipeline s1, pipeline S2 arranges valve B2 and circulating pump 15, pipeline S3 arranges valve B3 and topping-up pump 17, circulation pipe S4 arranges unidirectional valve B4.
In addition, the control device (not shown) that above-mentioned valve B1 ~ B3, pressue device 10, circulating pump 15, topping-up pump 17 are controlled also is provided with.
Below, a fluid reservoir 14 and secondary fluid reservoir 16 are described in detail.
A fluid reservoir 14 as shown in Figure 2, has: tank body 21, receive the liquid inlet 22 that the electrolyte from electrolyte container 11 enters, the liquid outlet 23 exporting electrolyte to secondary fluid reservoir 16, the circulation pipe entrance 24, the overfall 25 of discharging the gas in a fluid reservoir 14 and the first liquid level sensor 26 that enter for the gas in circulation pipe S4.
The liquid level of the first liquid level sensor 26 to the electrolyte in a fluid reservoir 14 detects, and, sets regulation lower position and set upper limit position (specifically aftermentioned) to a fluid reservoir 14 here.
In addition, the liquid inlet conduit 221 in a fluid reservoir 14 stretches into the bottom of tank body 21, has bubble to be mixed into reduce electrolyte in dropping process.Preferably the end of this liquid inlet conduit 221 extends to below the regulation lower position of a fluid reservoir 14.The circulation pipe entrance 24 of a fluid reservoir 14 also can connect entry conductor, and the end of this conduit preferably extends in the superjacent air space of tank body 21 of a fluid reservoir 14, and the gas be recycled in a fluid reservoir 14 can be made thus to discharge from overfall 25 in time.
Secondary fluid reservoir 16 as shown in Figure 3, has: tank body 31, receive the liquid inlet 32 that the electrolyte from a fluid reservoir 14 enters, the liquid outlet 33 exporting electrolyte to liquid injecting mouth 18, escape into circulation pipe outlet 34 in circulation pipe S4 and the second liquid level sensor 36 for the gas in tank body 31.
The liquid level of the electrolyte in the second liquid level sensor 36 pairs secondary fluid reservoir 16 detects, and here, sets set upper limit position, regulation lower position and start injection phase (specifically aftermentioned) to secondary fluid reservoir 16.
Similarly, the liquid inlet conduit 321 in secondary fluid reservoir 16 also extend into the bottom of tank body 31, has bubble to be mixed into reduce electrolyte in dropping process.Preferably the end of this liquid inlet conduit 321 extends to below the regulation lower position of secondary fluid reservoir 16.The circulation pipe outlet 34 of secondary fluid reservoir 16 also can connection outlet conduit, and the end of this conduit preferably extends to more than the set upper limit position of the tank body 31 of secondary fluid reservoir 16, thus can Exhaust Gas in time.
Next, the action of injecting electrolytic solution system is described.
As shown in Figure 1, first by control device, pressue device 10 pairs of electrolyte containers 11 are pressurizeed, such as can be filled with relative pressure is that the nitrogen of 0.1MP is to pressurize to this electrolyte container 11.Further, valve B1 opened by control device, makes to leave in electrolyte in electrolyte container 11 via flowmeter 12, valve B1, is pressed in a fluid reservoir 14.Here, being not limited to gas pressurized to the mode that electrolyte container 11 pressurizes, also can be pressurizeed etc. by hydraulic cylinder.
Then, control device is according to the signal from the first liquid level sensor 26, when the liquid level of the electrolyte that the first liquid level sensor 26 detects in a fluid reservoir 14 reaches set upper limit position, control device stops the pressurization of pressue device 10 and valve-off B1, stops input electrolyte in a fluid reservoir 14.When the liquid level of the electrolyte that the first liquid level sensor 26 detects in a fluid reservoir 14 reaches regulation lower position, control device controls, again open pressue device 10, carry out pressurizeing to electrolyte container 11 and open valve B1, making the electrolyte in electrolyte container 11 enter into a fluid reservoir 16.So, control device, according to the signal from the first liquid level sensor 26, repeatedly controls the pressurization of pressue device 10 and valve B1, the liquid level of the electrolyte in a fluid reservoir 14 is remained between upper limit position and lower position.
And, control device is according to the signal from the second liquid level sensor 36, when the liquid level of the electrolyte that the second liquid level sensor 36 detects in secondary fluid reservoir 16 reaches regulation lower position, control device starts circulating pump 15, open valve B2, make the electrolyte in a fluid reservoir 14 inject secondary fluid reservoir 16 through pipeline s2.When the liquid level of the electrolyte in secondary fluid reservoir 16 reaches set upper limit position, control device stops circulating pump 15, valve-off B2, stops electrolyte from fluid reservoir 14 to the supply of secondary fluid reservoir 16.So, control device, according to the signal from the second liquid level sensor 36, controls circulating pump 15 and valve B2 repeatedly, and the liquid level of the electrolyte in secondary fluid reservoir 16 is remained between lower position and lower position.In secondary fluid reservoir 16, the electrolyte entered from liquid inlet 32 deposits due to self gravitation effect from the bottom of tank body 31, the bubble entering into secondary fluid reservoir 16 with electrolyte then rises to the superjacent air space of tank body 31, and by being arranged on the circulation liquid outlet 34 above secondary fluid reservoir 16, enter into a fluid reservoir 14 via circulation pipe S4.Like this, the bubble in electrolyte can be eliminated further by secondary fluid reservoir 16.The end of this circulation pipe S4 in a fluid reservoir extends to more than the set upper limit position of the liquid level of electrolyte of this fluid reservoir 14, and the end of this circulation pipe S4 in secondary fluid reservoir 16 extends to more than the set upper limit position of the liquid level of electrolyte of this secondary fluid reservoir.
The set upper limit position of liquid level of electrolyte also can be set in secondary fluid reservoir 16, when whole tank body 31 filled by the electrolyte in secondary fluid reservoir 16, along with the continuation of electrolyte from liquid inlet 32 is injected, the electrolyte above tank body 31 turns back in a fluid reservoir 14 via circulation pipe S4.
Then, control device according to the signal of the second liquid level sensor 36, when the liquid level position of the electrolyte in the secondary fluid reservoir 16 that the second liquid level sensor 36 detects is for starting more than injection phase, control device priming pump 17, open valve B3, in battery case 18, inject electrolyte.
Due to the cushioning effect of secondary fluid reservoir 16, and the ringing of circulation pipe S4, the in-out end pressure of secondary fluid reservoir 16 keeps balance, like this, the electrolyte being supplied to topping-up pump 17 not only bubble can reduce, and the in-out end pressure of topping-up pump 17 also keeps balance.Thereby, it is possible to make each injection rate of topping-up pump 17 all keep stable.
In addition, preferably unidirectional valve is set on circulation pipe S4, enters secondary fluid reservoir 16 to prevent the bubble in a fluid reservoir 14 and electrolyte from circulation pipe S4 refluence.
Further, preferred topping-up pump 17 is metered dose infusion pump, each battery is injected to the electrolyte of regulation injection rate.
And, above-mentioned beginning injection phase is set as setting high than the regulation lower limit of secondary fluid reservoir 16, thus, can prevent electrolyte in secondary fluid reservoir 16 from also starting to inject when regulation lower position, make just to enter into the bubble of the electrolyte of secondary fluid reservoir 16 also along with electrolyte is injected into battery case from a fluid reservoir 14.Such as, can be set to: start injection phase >=regulation lower position+regulation injection rate × 10.
In injecting electrolytic solution system of the present invention, if the volume of secondary fluid reservoir 16 is less than the volume of a fluid reservoir 14.Such as, the volume of secondary fluid reservoir 16 is 1L, is 1/10th of the volume of a fluid reservoir 14, therefore, when carrying out fluid injection to the battery of multiple position, is convenient to together move with pipeline S3, topping-up pump 17 and liquid injecting mouth 18.Thus, the length between fluid reservoir and liquid injecting mouth can be shortened, reduce the generation of bubble.Meanwhile, the fluid reservoir 14 that volume is larger can be placed on the position away from fluid injection pallet, eliminates the potential safety hazard of the equipment on the fluid injection pallet, and can fluid injection thus realize fluid injection automation at a distance.
Further, owing to being provided with circulation pipe S4 between a fluid reservoir 14 and secondary fluid reservoir 16, therefore, the pressure balance of the in-out end of secondary fluid reservoir 16, the in-out end pressure of quantitative injection pump 17 also balances.Like this, each injection rate of quantitative injection pump 17 can be made all to keep stable.
In addition, the electrolyte container in injecting electrolytic solution system 11, fluid reservoir 14, a secondary fluid reservoir 16 are all preferably closed container, can prevent introduced contaminants and air etc. from entering into container.
According to injecting electrolytic solution system of the present invention, the deviation that fluid injection precision is ± 0.02g (cpk2.67/ σ 0.03) can be improved, and fluid infusion rate is significantly reduced to 0.2%.
The execution mode of above-mentioned record is only a specific embodiment of the present invention, can carry out various distortion without departing from the scope of the subject in the invention.
Claims (11)
1. an injecting electrolytic solution system, injects electrolyte, it is characterized in that in battery case (19),
Have:
Electrolyte container (11), stores electrolyte, and exports electrolyte by the pressurization of presser unit (10);
A fluid reservoir (14), is connected with above-mentioned electrolyte container (11) by pipeline, and stores the electrolyte supplied by above-mentioned electrolyte container (11);
Secondary fluid reservoir (16), is connected with an above-mentioned fluid reservoir (14) by pipeline, and stores the electrolyte supplied by an above-mentioned fluid reservoir (14);
Liquid injecting mouth (18), is connected with above-mentioned secondary fluid reservoir (16) by pipeline, and is injected in battery case (19) by the electrolyte in above-mentioned secondary fluid reservoir (16);
Circulating pump (15), be arranged on the pipeline between the above-mentioned fluid reservoir (14) of connection and above-mentioned secondary fluid reservoir (16), the electrolyte in an above-mentioned fluid reservoir (14) is supplied to above-mentioned secondary fluid reservoir (16); And
Topping-up pump (17), be arranged on the pipeline between the above-mentioned secondary fluid reservoir (16) of connection and above-mentioned liquid injecting mouth (18), electrolyte in above-mentioned secondary fluid reservoir (16) is supplied to above-mentioned liquid injecting mouth (18)
Above-mentioned injecting electrolytic solution system also has:
Circulation pipe (S4), an above-mentioned fluid reservoir (14) is communicated with above-mentioned secondary fluid reservoir (16), flow to an above-mentioned fluid reservoir (14) for making escaping gas in above-mentioned secondary fluid reservoir (16)
An above-mentioned fluid reservoir (14) is provided with the first liquid level sensor (26) detected the liquid level of the electrolyte in this fluid reservoir (14),
Above-mentioned injecting electrolytic solution system also has control device, when the liquid level be judged as in an above-mentioned fluid reservoir (14) according to the signal from above-mentioned first liquid level sensor (26) is the first regulation lower position, presser unit (10) opened by above-mentioned control device, by the supply in an above-mentioned fluid reservoir (14) of the electrolyte in above-mentioned electrolyte container (11), when the liquid level be judged as in an above-mentioned fluid reservoir (14) according to the signal from above-mentioned first liquid level sensor (26) is the first set upper limit position, above-mentioned control device cuts out presser unit (10), stop supply electrolyte in an above-mentioned fluid reservoir (14).
2. injecting electrolytic solution system as claimed in claim 1, is characterized in that,
Above-mentioned secondary fluid reservoir (16) is provided with the second liquid level sensor (36) detected the liquid level of the electrolyte in this secondary fluid reservoir (16),
Above-mentioned injecting electrolytic solution system also has control device, when the liquid level be judged as in above-mentioned secondary fluid reservoir (16) according to the signal from above-mentioned second liquid level sensor (36) is the second regulation lower position, above-mentioned control device ON cycle pump (15), by the supply in above-mentioned secondary fluid reservoir (16) of the electrolyte in an above-mentioned fluid reservoir (14), when the liquid level be judged as in above-mentioned secondary fluid reservoir (16) according to the signal from above-mentioned second liquid level sensor (36) is the second set upper limit position, above-mentioned control device cuts out circulating pump (15), stop supply electrolyte in above-mentioned secondary fluid reservoir (16).
3. injecting electrolytic solution system as claimed in claim 2, is characterized in that,
Above-mentioned control device is when starting injection phase according to the liquid level that the signal from above-mentioned second liquid level sensor (36) is judged as in above-mentioned secondary fluid reservoir (16), open topping-up pump (17), via above-mentioned liquid injecting mouth (18), the electrolyte in above-mentioned secondary fluid reservoir (16) is injected to battery case (19)
Above-mentioned beginning injection phase is higher than above-mentioned second regulation lower position.
4. injecting electrolytic solution system as claimed in claim 1, is characterized in that,
Electrolyte liquid inlet conduit in an above-mentioned fluid reservoir (14) extends to below above-mentioned first regulation lower position,
The end of above-mentioned circulation pipe (S4) in an above-mentioned fluid reservoir (14) extends to more than the first set upper limit position in the tank body (21) of this fluid reservoir (14).
5. injecting electrolytic solution system as claimed in claim 2, is characterized in that,
Electrolyte liquid inlet conduit in above-mentioned secondary fluid reservoir (16) extends to below above-mentioned second regulation lower position,
The end of above-mentioned circulation pipe (S4) in above-mentioned secondary fluid reservoir (16) extends to more than the second set upper limit position in the tank body (31) of this secondary fluid reservoir (16).
6. injecting electrolytic solution system as claimed in claim 1, is characterized in that,
Above-mentioned electrolyte container (11), an above-mentioned fluid reservoir (14), above-mentioned secondary fluid reservoir (16) are closed containers.
7. injecting electrolytic solution system as claimed in claim 1, is characterized in that,
An above-mentioned fluid reservoir (14) also has overfall (25), for discharging the gas in this fluid reservoir (14).
8. injecting electrolytic solution system as claimed in claim 1, is characterized in that,
Above-mentioned circulation pipe (S4) is provided with unidirectional valve, stops gas and electrolyte to flow to above-mentioned secondary fluid reservoir (16) from an above-mentioned fluid reservoir (14).
9. an electrolyte filling method for electrolyte, is applied in injecting electrolytic solution system, injects electrolyte, it is characterized in that in battery case (19),
Have:
By the pressurization of presser unit (10), make the step that the electrolyte that stores in electrolyte container (11) supplies to fluid reservoir (14);
By the step that circulating pump (15) makes the electrolyte in an above-mentioned fluid reservoir (14) supply to secondary fluid reservoir (16); And
By topping-up pump (17), make the step that the electrolyte in above-mentioned secondary fluid reservoir (16) injects in battery case (19) to liquid injecting mouth (18) supply and by this liquid injecting mouth (18),
In above-mentioned injecting electrolytic solution method,
The gas overflowed in above-mentioned secondary fluid reservoir (16) is flowed to an above-mentioned fluid reservoir (14) by circulation pipe (S4),
When the liquid level be judged as in an above-mentioned fluid reservoir (14) according to the signal from the first liquid level sensor (26) is the first regulation lower position, presser unit (10) is opened by the control device in injecting electrolytic solution system, by the supply in an above-mentioned fluid reservoir (14) of the electrolyte in above-mentioned electrolyte container (11), above-mentioned first liquid level sensor (26) detects the liquid level of the electrolyte in an above-mentioned fluid reservoir (14)
When the liquid level be judged as in an above-mentioned fluid reservoir (14) according to the signal from above-mentioned first liquid level sensor (26) is the first set upper limit position, above-mentioned control device cuts out presser unit (10), stops supply electrolyte in an above-mentioned fluid reservoir (14).
10. injecting electrolytic solution method as claimed in claim 9, is characterized in that,
When the liquid level be judged as in above-mentioned secondary fluid reservoir (16) according to the signal from the second liquid level sensor (36) is the second regulation lower position, control device ON cycle pump (15) in above-mentioned injecting electrolytic solution system, by the supply in above-mentioned secondary fluid reservoir (16) of the electrolyte in an above-mentioned fluid reservoir (14), above-mentioned second liquid level sensor (36) detects the liquid level of the electrolyte in above-mentioned secondary fluid reservoir (16), when the liquid level be judged as in above-mentioned secondary fluid reservoir (16) according to the signal from above-mentioned second liquid level sensor (36) is the second set upper limit position, above-mentioned control device cuts out circulating pump (15), stop supply electrolyte in above-mentioned secondary fluid reservoir (16).
11. injecting electrolytic solution methods as claimed in claim 10, is characterized in that,
Above-mentioned control device is when starting injection phase according to the liquid level that the signal from above-mentioned second liquid level sensor (36) is judged as in above-mentioned secondary fluid reservoir (16), open topping-up pump (17), via liquid injecting mouth (18), the electrolyte in above-mentioned secondary fluid reservoir (16) is injected to battery case (19)
Above-mentioned beginning injection phase is higher than above-mentioned second regulation lower position.
Priority Applications (1)
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| CN105514339A (en) * | 2015-12-28 | 2016-04-20 | 宁波世捷新能源科技有限公司 | Multistage buffering continuous vacuum absorption type electrolyte injection system with lithium-ion batteries |
| CN106200470A (en) * | 2016-07-26 | 2016-12-07 | 江苏师范大学 | Solid liquid interface electrode process based on X-ray imaging and CUDA technology analyzes system |
| CN106226380A (en) * | 2016-07-26 | 2016-12-14 | 江苏师范大学 | There is the electrolysis unit of scale, electrolytic process automatic analysis system based on X-ray imaging |
| CN106198684A (en) * | 2016-07-26 | 2016-12-07 | 江苏师范大学 | The electrode process comprising CUDA processing unit analyzes system |
| CN106198687A (en) * | 2016-07-26 | 2016-12-07 | 江苏师范大学 | The solid liquid interface electrode process with laser imaging and CUDA technology analyzes system |
| CN106248530A (en) * | 2016-07-26 | 2016-12-21 | 江苏师范大学 | The solid liquid interface electrode process with special pattern processing method analyzes system |
| CN106226242A (en) * | 2016-07-26 | 2016-12-14 | 江苏师范大学 | The electrode process with special pattern processing method analyzes system |
| CN106198686A (en) * | 2016-07-26 | 2016-12-07 | 江苏师范大学 | Solid liquid interface electrode process automatic analysis system based on CUDA technology |
| CN106198685A (en) * | 2016-07-26 | 2016-12-07 | 江苏师范大学 | The solid liquid interface electrode process with scale based on CUDA technology analyzes system |
| CN106248529A (en) * | 2016-07-26 | 2016-12-21 | 江苏师范大学 | There is the electrolysis unit of liquid feed valve, electrode analysis system based on X-ray imaging |
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| CN111609323B (en) * | 2020-06-19 | 2025-03-25 | 宜兴市鑫煜科技有限公司 | High-energy electro-hydraulic beam fully automatic liquid supply equipment |
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| CN112952306B (en) * | 2021-03-11 | 2023-03-14 | 浙江南都电源动力股份有限公司 | Quantitative acid adding system without using quantitative acid adding machine and acid adding process |
| CN113690070B (en) * | 2021-08-16 | 2023-04-11 | 丰宾电子科技股份有限公司 | Liquid injection device and processing equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201387907Y (en) * | 2009-03-03 | 2010-01-20 | 天津力神电池股份有限公司 | Automatic liquid feeding device of lithium ion battery filling machine |
| CN102306740A (en) * | 2011-08-17 | 2012-01-04 | 东莞市骏泰精密机械有限公司 | Vacuum injection equipment of flexibly-packaged lithium battery |
| CN202749451U (en) * | 2012-07-16 | 2013-02-20 | 松下能源(无锡)有限公司 | Electrolyte injection system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000182599A (en) * | 1998-12-18 | 2000-06-30 | Toshiba Corp | Electrolyte injection device and method |
| JP5585174B2 (en) * | 2010-04-07 | 2014-09-10 | 日産自動車株式会社 | Electrolyte injection method and electrolyte injection device |
-
2012
- 2012-07-16 CN CN201210253645.7A patent/CN103545478B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201387907Y (en) * | 2009-03-03 | 2010-01-20 | 天津力神电池股份有限公司 | Automatic liquid feeding device of lithium ion battery filling machine |
| CN102306740A (en) * | 2011-08-17 | 2012-01-04 | 东莞市骏泰精密机械有限公司 | Vacuum injection equipment of flexibly-packaged lithium battery |
| CN202749451U (en) * | 2012-07-16 | 2013-02-20 | 松下能源(无锡)有限公司 | Electrolyte injection system |
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