CN108183273A - A kind of charging method of the safety of lithium ion secondary battery of smart home - Google Patents
A kind of charging method of the safety of lithium ion secondary battery of smart home Download PDFInfo
- Publication number
- CN108183273A CN108183273A CN201711432009.XA CN201711432009A CN108183273A CN 108183273 A CN108183273 A CN 108183273A CN 201711432009 A CN201711432009 A CN 201711432009A CN 108183273 A CN108183273 A CN 108183273A
- Authority
- CN
- China
- Prior art keywords
- electrode active
- lithium
- positive electrode
- active materials
- charging
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 20
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 12
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 12
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 26
- 239000007774 positive electrode material Substances 0.000 claims abstract description 22
- 239000000853 adhesive Substances 0.000 claims abstract description 19
- 230000001070 adhesive effect Effects 0.000 claims abstract description 19
- 239000011230 binding agent Substances 0.000 claims abstract description 15
- 239000002002 slurry Substances 0.000 claims abstract description 14
- 239000002253 acid Substances 0.000 claims abstract description 11
- 229910017052 cobalt Inorganic materials 0.000 claims abstract description 11
- 239000010941 cobalt Substances 0.000 claims abstract description 11
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910012406 LiNi0.5 Inorganic materials 0.000 claims abstract description 9
- 238000001514 detection method Methods 0.000 claims abstract description 8
- 239000004411 aluminium Substances 0.000 claims abstract description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 7
- 239000006258 conductive agent Substances 0.000 claims abstract description 7
- 230000003247 decreasing effect Effects 0.000 claims abstract description 7
- 238000007650 screen-printing Methods 0.000 claims abstract description 7
- 239000002904 solvent Substances 0.000 claims abstract description 7
- 206010013786 Dry skin Diseases 0.000 claims abstract description 5
- 238000001035 drying Methods 0.000 claims abstract description 5
- 239000003792 electrolyte Substances 0.000 claims abstract description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 8
- 235000013339 cereals Nutrition 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 229910013716 LiNi Inorganic materials 0.000 claims description 4
- 239000002033 PVDF binder Substances 0.000 claims description 4
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 4
- 240000007594 Oryza sativa Species 0.000 claims description 2
- 235000007164 Oryza sativa Nutrition 0.000 claims description 2
- 235000009566 rice Nutrition 0.000 claims description 2
- 239000006185 dispersion Substances 0.000 abstract 1
- 238000004590 computer program Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 3
- 229910011322 LiNi0.6Mn0.2Co0.2O2 Inorganic materials 0.000 description 2
- 239000006183 anode active material Substances 0.000 description 2
- 210000004027 cell Anatomy 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 229910020784 Co0.2O2 Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 210000000352 storage cell Anatomy 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/446—Initial charging measures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4285—Testing apparatus
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/448—End of discharge regulating measures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/50—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese
- H01M4/505—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
- H01M4/525—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
Abstract
The present invention relates to a kind of charging methods of the safety of lithium ion secondary battery of smart home, and described method includes following steps：By positive electrode active materials cobalt acid lithium and LiNi0.5Mn0.25Co0.25O2It is uniformly mixed, slurry is made together with conductive agent, binding agent and solvent；The latticed adhesive linkage of silk-screen printing on aluminium collector；Slurry obtained is coated on the collector comprising adhesive linkage, in 100 DEG C of dryings, obtains positive plate；Obtained positive plate and negative plate and electrolyte are assembled into lithium rechargeable battery；Constant-current charge is carried out to lithium rechargeable battery, at interval of the change rate of 3s detection primary voltage variations, it is judged as charge termination when dV/dt is decreased to 0.2V/h, stop the charging to battery, technical solution provided by the invention, with the even particulate dispersion of positive electrode active materials containing lithium in the particulate interspaces of the positive electrode active materials containing lithium with low voltage, so as to improve the accuracy of end point determination, so as to improve the volumetric properties of battery.
Description
Technical field
The present invention relates to electronic component fields, and in particular to a kind of safety of lithium ion secondary battery of smart home
Charging method.
Background technology
Smart home (English：Smart home, home automation) it is using house as platform, utilize comprehensive wiring
Technology, network communication technology, security precautions technology, automatic control technology, audio frequency and video technology are by the related facility collection of home life
Into building the management systems of efficient housing facilities and family's schedule affairs, promote house security, convenience, comfort, skill
Art, and realize the living environment of environmental protection and energy saving.
Many smart homes need to provide power supply for it using energy-storage battery, lithium ion battery as novel energy storage cell,
There is energy density height, memory-less effect is ideal smart home power supply.But the charging of lithium ion battery is safe
An always critical problem, excessive charging can lead to catching fire and exploding for battery, bring very serious consequence.Lithium from
Sub- battery overcharge a part the reason is that because charge termination be difficult to detect caused by.
Invention content
The present invention provides a kind of charging method of the safety of lithium ion secondary battery of smart home, and the purpose is to the present invention
Purpose be to improve the charging method of the safety of lithium ion secondary battery for smart home, to overcome existing above-mentioned lack
It falls into.
The purpose of the present invention is what is realized using following technical proposals：
The present invention provides a kind of charging method of the safety of lithium ion secondary battery of smart home, it is improved in that institute
The method of stating includes：
（1）By positive electrode active materials cobalt acid lithium and LiNi0.5Mn0.25Co0.25O2It is uniformly mixed, with conductive agent, binding agent and solvent
Slurry is made together；
（2）The latticed adhesive linkage of silk-screen printing on aluminium collector；
（3）By step（1）Slurry obtained is coated on the collector comprising adhesive linkage, with 100 DEG C of dryings, obtains positive plate；
（4）By step（3）Obtained positive plate is assembled into lithium rechargeable battery with negative plate and electrolyte；
（5）Constant-current charge is carried out to lithium rechargeable battery, constant-current charge is divided into 3 stages, and the 1st stage charging current is 5C,
Charging time is 9min, and the 2nd stage charging current is 1C, and charging time 9min, the 3rd stage charging current is 0.1C, is charged
To charge termination；
（6）In step（5）The 3rd stage, at interval of 3s detection primary voltage variations change rate dV/dt, dV/dt from gradual
Increase becomes being gradually reduced again, is judged as charge termination when dV/dt is decreased to 0.2V/h, stops the charging to battery.
Preferably, the positive electrode active materials cobalt acid lithium and LiNi0.5Mn0.25Co0.25O2It is uniformly mixed, with conductive agent, viscous
Slurry is made in knot agent and solvent together, and method includes：
The LiNi of total positive electrode active materials quality 2% will be accounted for0.5Mn0.25Co0.25O2, 94% positive electrode active materials, 3% conduction
Agent, 3% binding agent are mixed, and are fabricated to slurry；
Wherein, LiNi0.5Mn0.25Co0.25O2Average grain diameter for 200nm, the average grain diameter of cobalt acid lithium is 1000nm；
Preferably, the latticed adhesive linkage of silk-screen printing, the method on aluminium collector include：
24% of layer material coated area for afflux bulk area will be bonded, adhesive linkage includes binding agent PVDF and nano-silver powder, receives
Rice silver powder accounts for the 45% of adhesive linkage quality；
Preferably, described to carry out constant-current charge to lithium rechargeable battery, constant-current charge is divided into 3 stages, and method includes：
1st stage charging current is 5C, charging time 9min；
2nd stage charging current is 1C, charging time 9min；
3rd stage charging current is 0.1C, charges to charge termination., it is improved in that including：
Beneficial effects of the present invention：
The present invention uses two different positive electrode active materials, with the progress of charging, is initially formed low-voltage positive-active material
Material, can quickly be increased to high-voltage anode active material, then voltage is steady in low-voltage positive electrode active materials latter stage of charging voltage
Be scheduled on high-voltage anode active material, so as to avoid a kind of positive electrode active materials charge end up when cell voltage drastically
On the other hand raising is coordinated using voltage change ratio detection means so that and dV/dt becomes being gradually reduced again from gradual increase, from
And it is judged as charge termination when dV/dt is decreased to predetermined threshold, charge termination can be preferably detected, prevents excessively filling for battery
Electricity, also, by way of the above-mentioned judgement charge termination of voltage change ratio, having as charge termination detection agent can be reduced
The usage amount of the electrode active material of high voltage.So as to improve the accuracy of end point determination, and it is close with higher accumulation
Degree improves the volumetric properties of battery.
Description of the drawings
Fig. 1 is a kind of flow chart of the charging method of the safety of lithium ion secondary battery of smart home of the present invention.
Specific embodiment
It elaborates below in conjunction with the accompanying drawings to the specific embodiment of the present invention.
Purpose, technical scheme and advantage to make the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
The all other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Embodiment one：
The present invention uses two different positive electrode active materials, matches with the progress and voltage change ratio detection means of charging
It closes so that dV/dt becomes being gradually reduced again from gradual increase, so as to be judged as charging eventually when dV/dt is decreased to predetermined threshold
Point can preferably detect charge termination, prevent overcharging for battery, also, charge by the above-mentioned judgement of voltage change ratio
The mode of terminal can guarantee quick charge, and be avoided that the big charging current of latter stage of charging causes the drastically liter of cell voltage
It is high.The security performance of battery is improved, latticed coating method can reduce the usage amount of binding agent and reduce resistance simultaneously, including
Following steps：
（1）By positive electrode active materials cobalt acid lithium and LiNi0.6Mn0.2Co0.2O2It is uniformly mixed, with conductive agent, binding agent and solvent one
It rises and slurry, wherein LiNi is made0.6Mn0.2Co0.2O2Account for the 1.5% of total positive electrode active materials quality, positive electrode active materials, conduction
Agent, binding agent percentage be respectively：94%th, 3%, 3%；LiNi0.6Mn0.2Co0.2O2Average grain diameter for 150nm, cobalt acid lithium
Average grain diameter be 800nm.
（2）The latticed adhesive linkage of silk-screen printing on aluminium collector, bonding layer material coated area are afflux bulk area
22%, adhesive linkage includes binding agent PVDF and nano-silver powder, and nano-silver powder accounts for the 45% of adhesive linkage quality；
（3）By step（1）Slurry obtained is coated on the collector comprising adhesive linkage, in 100 DEG C of dryings, obtains positive plate；
（4）By step（3）Obtained positive plate is assembled into lithium rechargeable battery with negative plate and electrolyte；
（5）Constant-current charge is carried out to lithium rechargeable battery, constant-current charge is divided into 3 stages, and the 1st stage charging current is 5C,
Charging time is 9min, and the 2nd stage charging current is 1C, and charging time 9min, the 3rd stage charging current is 0.1C, is charged
To charge termination；
（6）In step（5）The 3rd stage, at interval of 3s detection primary voltage variations change rate dV/dt, dV/dt from gradual
Increase becomes being gradually reduced again, is judged as charge termination when dV/dt is decreased to 0.2V/h, stops the charging to battery.
Embodiment two：A kind of charging method of the safety of lithium ion secondary battery of smart home, includes the following steps：
（1）By positive electrode active materials cobalt acid lithium and LiNi0.5Mn0.25Co0.25O2It is uniformly mixed, with conductive agent, binding agent and solvent
Slurry, wherein LiNi are made together0.5Mn0.25Co0.25O2Account for the 2% of total positive electrode active materials quality, positive electrode active materials, conduction
Agent, binding agent percentage be respectively：94%th, 3%, 3%；LiNi0.5Mn0.25Co0.25O2Average grain diameter for 200nm, cobalt acid
The average grain diameter of lithium is 1000nm.
（2）The latticed adhesive linkage of silk-screen printing on aluminium collector, bonding layer material coated area are afflux bulk area
24%, adhesive linkage includes binding agent PVDF and nano-silver powder, and nano-silver powder accounts for the 45% of adhesive linkage quality；
（3）By step（1）Slurry obtained is coated on the collector comprising adhesive linkage, in 100 DEG C of dryings, obtains positive plate；
（4）By step（3）Obtained positive plate is assembled into lithium rechargeable battery with negative plate and electrolyte；
（5）Constant-current charge is carried out to lithium rechargeable battery, constant-current charge is divided into 3 stages, and the 1st stage charging current is 5C,
Charging time is 9min, and the 2nd stage charging current is 1C, and charging time 9min, the 3rd stage charging current is 0.1C, is charged
To charge termination；
（6）In step（5）The 3rd stage, at interval of 3s detection primary voltage variations change rate dV/dt, dV/dt from gradual
Increase becomes being gradually reduced again, is judged as charge termination when dV/dt is decreased to 0.2V/h, stops the charging to battery.Ability
Technical staff in domain is it should be appreciated that embodiments herein can be provided as method, system or computer program product.Therefore, originally
Apply for the form of the embodiment in terms of complete hardware embodiment, complete software embodiment can be used or combine software and hardware.And
And the computer-usable storage medium for wherein including computer usable program code in one or more can be used in the application
（Including but not limited to magnetic disk storage, CD-ROM, optical memory etc.）The form of the computer program product of upper implementation.
The application is with reference to method, the equipment according to the embodiment of the present application（System）And the flow of computer program product
Figure and/or block diagram describe.It should be understood that it can be realized by computer program instructions every first-class in flowchart and/or the block diagram
The combination of flow and/or box in journey and/or box and flowchart and/or the block diagram.These computer programs can be provided
The processor of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that the instruction performed by computer or the processor of other programmable data processing devices is generated for real
The device of function specified in present one flow of flow chart or one box of multiple flows and/or block diagram or multiple boxes.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction generation being stored in the computer-readable memory includes referring to
Enable the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one box of block diagram or
The function of being specified in multiple boxes.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted
Series of operation steps are performed on calculation machine or other programmable devices to generate computer implemented processing, so as in computer or
The instruction offer performed on other programmable devices is used to implement in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Finally it should be noted that：The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof, to the greatest extent
Pipe is described in detail the present invention with reference to above-described embodiment, those of ordinary skills in the art should understand that：Still
The specific embodiment of the present invention can be modified or replaced equivalently, and without departing from any of spirit and scope of the invention
Modification or equivalent replacement should all cover within the claims of the present invention.
Claims (4)
1. a kind of charging method of the safety of lithium ion secondary battery of smart home, which is characterized in that the method includes such as
Lower step：
（1）By positive electrode active materials cobalt acid lithium and LiNi0.5Mn0.25Co0.25O2It is uniformly mixed, with conductive agent, binding agent and solvent
Slurry is made together；
（2）The latticed adhesive linkage of silk-screen printing on aluminium collector；
（3）By step（1）Slurry obtained is coated on the collector comprising adhesive linkage, through 100 DEG C of dryings, obtains positive plate；
（4）By step（3）Obtained positive plate is assembled into lithium rechargeable battery with negative plate and electrolyte；
（5）Constant-current charge is carried out to lithium rechargeable battery, constant-current charge is divided into 3 stages, and the 1st stage charging current is 5C,
Charging time is 9min, and the 2nd stage charging current is 1C, and charging time 9min, the 3rd stage charging current is 0.1C, is charged
To charge termination；
（6）In step（5）The 3rd stage, at interval of 3s detection primary voltage variations change rate dV/dt, dV/dt from gradual
Increase becomes being gradually reduced again, is judged as charge termination when dV/dt is decreased to 0.2V/h, stops the charging to battery.
2. the method as described in claim 1, which is characterized in that the positive electrode active materials cobalt acid lithium and
LiNi0.5Mn0.25Co0.25O2It is uniformly mixed, slurry is made together with conductive agent, binding agent and solvent, including：
The LiNi of total positive electrode active materials quality 2% will be accounted for0.5Mn0.25Co0.25O2, 94% positive electrode active materials, 3% conduction
Agent, 3% binding agent are mixed, and are fabricated to slurry；
Wherein, LiNi0.5Mn0.25Co0.25O2Average grain diameter for 200nm, the average grain diameter of cobalt acid lithium is 1000nm.
3. the method as described in claim 1, which is characterized in that the latticed bonding of silk-screen printing on aluminium collector
Layer, including：
24% of layer material coated area for afflux bulk area will be bonded, adhesive linkage includes binding agent PVDF and nano-silver powder, receives
Rice silver powder accounts for the 45% of adhesive linkage quality.
4. as described in claim 1, which is characterized in that described that constant-current charge, constant-current charge point are carried out to lithium rechargeable battery
For 3 stages, including：
1st stage charging current is 5C, charging time 9min；
2nd stage charging current is 1C, charging time 9min；
3rd stage charging current is 0.1C, charges to charge termination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711432009.XA CN108183273A (en) | 2017-12-26 | 2017-12-26 | A kind of charging method of the safety of lithium ion secondary battery of smart home |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711432009.XA CN108183273A (en) | 2017-12-26 | 2017-12-26 | A kind of charging method of the safety of lithium ion secondary battery of smart home |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108183273A true CN108183273A (en) | 2018-06-19 |
Family
ID=62547106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711432009.XA Pending CN108183273A (en) | 2017-12-26 | 2017-12-26 | A kind of charging method of the safety of lithium ion secondary battery of smart home |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108183273A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116493251A (en) * | 2023-06-29 | 2023-07-28 | 宁德时代新能源科技股份有限公司 | screening equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101479911A (en) * | 2006-03-23 | 2009-07-08 | 赛昂能源有限公司 | Methods of charging lithium sulfur cells |
| CN101587952A (en) * | 2009-06-18 | 2009-11-25 | 天津大学 | Compound lithium cobaltate cathode material, preparing method and application thereof |
| CN101783424A (en) * | 2009-01-15 | 2010-07-21 | 深圳市比克电池有限公司 | Method for pre-charging lithium ion battery |
| CN102544586A (en) * | 2010-12-10 | 2012-07-04 | 深圳市比克电池有限公司 | Lithium ion battery preparation method and lithium ion battery |
| CN103794828A (en) * | 2012-10-30 | 2014-05-14 | 上海中科智能控制技术有限公司 | Method and device for rapid charging of lithium ion battery |
| CN204857467U (en) * | 2015-06-29 | 2015-12-09 | 山东精工电子科技有限公司 | Supercapacitor pole piece |
| CN107195858A (en) * | 2017-04-17 | 2017-09-22 | 深圳市比克动力电池有限公司 | Lithium ion battery, anode sizing agent, anode pole piece and preparation method |
-
2017
- 2017-12-26 CN CN201711432009.XA patent/CN108183273A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101479911A (en) * | 2006-03-23 | 2009-07-08 | 赛昂能源有限公司 | Methods of charging lithium sulfur cells |
| CN101783424A (en) * | 2009-01-15 | 2010-07-21 | 深圳市比克电池有限公司 | Method for pre-charging lithium ion battery |
| CN101587952A (en) * | 2009-06-18 | 2009-11-25 | 天津大学 | Compound lithium cobaltate cathode material, preparing method and application thereof |
| CN102544586A (en) * | 2010-12-10 | 2012-07-04 | 深圳市比克电池有限公司 | Lithium ion battery preparation method and lithium ion battery |
| CN103794828A (en) * | 2012-10-30 | 2014-05-14 | 上海中科智能控制技术有限公司 | Method and device for rapid charging of lithium ion battery |
| CN204857467U (en) * | 2015-06-29 | 2015-12-09 | 山东精工电子科技有限公司 | Supercapacitor pole piece |
| CN107195858A (en) * | 2017-04-17 | 2017-09-22 | 深圳市比克动力电池有限公司 | Lithium ion battery, anode sizing agent, anode pole piece and preparation method |
Non-Patent Citations (1)
| Title |
|---|
| 段敏: "《电动汽车技术》", 30 September 2015 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116493251A (en) * | 2023-06-29 | 2023-07-28 | 宁德时代新能源科技股份有限公司 | screening equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105027381B (en) | Method and system for recharging a battery | |
| TW452991B (en) | Lithium-ion battery | |
| CN106208223B (en) | Method for charging batteries and device | |
| CN108258706B (en) | Fire/storage AGC frequency modulation optimization control method and system | |
| CN101262077A (en) | A high-capacity secure 26650 lithium ion battery and its making method | |
| CN107978790A (en) | A kind of battery mends lithium method and apparatus | |
| CN106257714A (en) | A kind of new system lithium ion battery and preparation method thereof | |
| CN103683359A (en) | Battery equalization method for battery pack and battery management system | |
| CN106990362A (en) | A kind of emergency power supply Temperature/Humidity Control System | |
| CN107437642A (en) | A kind of intelligent charging method and device | |
| Dai et al. | Electrochemical mechanism and structure simulation of 2D lithium‐ion battery | |
| CN102842937A (en) | Charging/discharging controlling system of serial storage battery set and charging/discharging optimizing method | |
| CN105162163B (en) | Based on the micro-capacitance sensor intelligent control method for acting on behalf of priority more | |
| CN107565587B (en) | Consider photovoltaic power grid energy storage configuration method and system that climbing power limited degree is stabilized | |
| CN202435059U (en) | Lithium cell charging and discharging management circuit | |
| CN108183273A (en) | A kind of charging method of the safety of lithium ion secondary battery of smart home | |
| CN206060307U (en) | A kind of accumulator cell charging and discharging bascule | |
| CN102185365A (en) | Charging circuit for equalizing activation of multi-section series lithium ion battery pack and battery pack | |
| CN106356942A (en) | Lithium battery system | |
| CN101510597B (en) | Lithium ion battery and isolating film | |
| CN104319799A (en) | Method, device and system for V2G battery management | |
| CN104569838B (en) | The evaluation method of container energy storage device core component based on remote monitoring | |
| CN116365038A (en) | High-voltage electrolyte, preparation method thereof and battery | |
| CN101299470A (en) | Lithium ion battery | |
| CN103855756A (en) | Passive type equalization circuit and corresponding passive type equalization method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180619 |