CN114551962B - High-capacity high-safety battery structure - Google Patents
High-capacity high-safety battery structure Download PDFInfo
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- CN114551962B CN114551962B CN202111674235.5A CN202111674235A CN114551962B CN 114551962 B CN114551962 B CN 114551962B CN 202111674235 A CN202111674235 A CN 202111674235A CN 114551962 B CN114551962 B CN 114551962B
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- 239000000463 material Substances 0.000 claims abstract description 7
- 238000010521 absorption reaction Methods 0.000 claims abstract description 5
- 239000003792 electrolyte Substances 0.000 claims abstract description 3
- QQZOPKMRPOGIEB-UHFFFAOYSA-N 2-Oxohexane Chemical class CCCCC(C)=O QQZOPKMRPOGIEB-UHFFFAOYSA-N 0.000 claims description 16
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 6
- 230000017525 heat dissipation Effects 0.000 claims description 6
- WVSNNWIIMPNRDB-UHFFFAOYSA-N 1,1,1,3,3,4,4,5,5,6,6,6-dodecafluorohexan-2-one Chemical compound FC(F)(F)C(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F WVSNNWIIMPNRDB-UHFFFAOYSA-N 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000003475 lamination Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000005405 multipole Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000007704 transition Effects 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
- H01M10/04—Construction or manufacture in general
- H01M10/0413—Large-sized flat cells or batteries for motive or stationary systems with plate-like electrodes
-
- 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
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
-
- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or 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
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
-
- 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
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
-
- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/659—Means for temperature control structurally associated with the cells by heat storage or buffering, e.g. heat capacity or liquid-solid phase changes or transition
-
- 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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/317—Re-sealable arrangements
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Secondary Cells (AREA)
Abstract
The invention relates to the technical field of batteries, in particular to a high-capacity and high-safety battery structure, wherein the interior of a battery is divided into 10 pole groups, each pole group is provided with an independent supporting structure, a flow channel and a current collector and is in the same electrolyte environment, the output of each pole group is finally collected to the total positive pole and the total negative pole of the battery through a bus, a multi-stage protection layer and a phase-change heat absorption fire extinguishing material are arranged, each pole group is provided with a plurality of temperature sensors and gas sensors, and an intelligent management and control system rapidly opens an internal explosion-proof valve when the internal thermal runaway of the battery is found according to information acquired by the sensors. The invention has the advantages of large structural capacity, high specific energy, intrinsic safety and intelligent control, and can be applied to large equipment such as submarines.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a high-capacity and high-safety battery structure.
Background
At present, the shape of a battery is a rectangular body, and if the battery is designed according to the conventional design, a diaphragm and a pole piece in the height direction are influenced by gravity, so that the middle position is easy to deform; meanwhile, when the internal electrode group of the battery is integrated, a large amount of heat can be accumulated under the normal working condition; from the perspective of manufacturing process analysis, the coefficient of difficulty is extremely large, and lamination uniformity is difficult to guarantee.
Disclosure of Invention
In order to effectively solve the problems in the background technology, the invention provides a high-capacity and high-safety battery structure.
The specific technical scheme is as follows;
The utility model provides a high-capacity high-safety battery structure, battery internal portion is divided into 10 utmost point groups, and every utmost point group possesses independent bearing structure, flow channel and current collector, all is in the same electrolyte environment, and the output of every utmost point group finally gathers to the total positive pole and the total negative pole of battery through the generating line, sets up multistage protective layer and fills the heat absorption fire extinguishing material of phase transition, and every utmost point group all sets up a plurality of temperature sensor and gas sensor, and intelligent management and control system is according to the information that the sensor gathered, opens inside explosion-proof valve fast when finding the inside thermal runaway of battery.
Preferably, the pole group adopts a laminated pole group combination mode.
Preferably, the supporting structure adopts an aluminum shell with the thickness of 8mm as a support, the outside of the aluminum shell is welded with reinforcing ribs to ensure the structural strength, the internal explosion-proof threshold value is 1.8MPa, and the frame strength is required to be greater than the explosion-proof threshold strength.
Preferably, the phase change endothermic fire extinguishing material is perfluoro hexanone.
Preferably, the flow channel adopts liquid cooling heat dissipation, the two side frames also serve as cold plates,
Preferably, a melt-type safety relief is provided on both the three sides and the bottom of each pole group.
Compared with the prior art, the invention has the beneficial effects that: the invention has the advantages of large structural capacity, high specific energy, intrinsic safety and intelligent control, and can be applied to large equipment such as submarines.
Drawings
FIG. 1 is a block diagram of the present invention;
Fig. 2 is a front view of the present invention.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
In the description of the invention, it should be understood that the terms "center," "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships that are based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the invention and simplify the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operate in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "fixedly connected," and "affixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art in a specific case.
The following detailed description of the invention refers to the accompanying drawings and preferred embodiments.
The utility model provides a high safe battery structure of large capacity, includes intelligent management and control structure 1, battery outer valve 2, copper post conflux structure 3, heat pipe heat conduction structure 4, lamination multipolar group structure 5, utmost point group frame construction 6, high safe explosion-proof housing battery structure 7, interior valve 8, perfluoro hexanone anti-lock fire extinguishing structure 9. The high-safety explosion-proof housing of the perfluorinated hexanone anti-interlocking fire extinguishing structure 9 is an integral support of a battery, the intelligent control structure 1 and the battery outer valve 2 are arranged at the top of the battery, the copper column converging structure 3 extends out of the top of the battery and is connected with the laminated multipolar group grouping structure 5, the pole group frame structure 6 is an internal support of the heat pipe heat conducting structure 4 and the laminated multipolar group grouping structure 5, the heat pipe heat conducting structure 4 is connected with the laminated multipolar group grouping structure 5, the internal valve 88 is arranged on the pole group frame structure 6, and the perfluorinated hexanone anti-interlocking fire extinguishing structure 9 is filled between the pole group frame structure 6 and the high-safety explosion-proof housing battery structure 7.
The novel laminated multipole component assembly described above does not employ conventional winding means. Because the winding needle is thicker in the winding mode, the gap between the positive and negative pole pieces is not easy to control at the bent angle, powder is easy to fall off, and the safety and the reliability are poor. The stacked plate type pole group combination mode can enable contact between the anode and the cathode to be more uniform, improves the utilization rate of materials, can inhibit swelling of the battery in the thickness direction to a certain extent, and is also beneficial to arrangement and heat dissipation of the battery. And the bearing capacity of the lamination type structure to current is stronger than that of the winding type structure, so that the power performance of the high-capacity battery can be effectively improved.
The novel liquid cooling heat dissipation and heat pipe heat conduction structure adopts liquid cooling heat dissipation in design, two side frames are used as cold plates simultaneously, the highest heat flux density of liquid cooling can reach 15w/cm < 2 >, a runner is designed in the later stage, and the balance temperature and the whole temperature difference of the battery are controlled by adjusting the water flow rate and the water inlet temperature. Because the dimension of the battery in the height direction is larger, the large surface of each pole group is directly contacted with a capillary heat pipe with the thickness of 1.2mm (the heat conductivity coefficient of the heat pipe can reach 15000 w/m.K), and the phase change heat transfer and the capillary action are utilized to quickly transfer heat and reduce the temperature difference.
The novel inner and outer explosion-proof valve and the intelligent monitoring structure are characterized in that a melting type safety pressure relief device similar to a safety valve and a rupture disk is arranged on the three side surfaces and the bottom surface of each pole group.
Internal valve settings: sensors are uniformly distributed at all positions in the battery, once thermal runaway occurs locally, the air pressure is more than 1.8MPa, the temperature is higher than 80 ℃, the concentration of hydrogen and carbon monoxide is higher than 0.05db, the sensors transmit signals in millisecond level, the internal valve is quickly opened, and the thermal runaway and thermal spread range of the battery is ensured to be not more than one electrode group. The valve is lower than the liquid level of the perfluorinated hexanone, so that the gas is ensured to be directly introduced into the perfluorinated hexanone for cooling. At present, microscopic optical fiber sensors exist on the market, the temperature sensing can achieve the accuracy of 0.2 ℃, the application range is-269-300 ℃, the response time is 5-30 Hz, and the pressure sensing can achieve the range of 2ps i.
External valve setting: the battery capacity is large, and once thermal runaway occurs, the gas production rate also increases sharply, and in the thermal runaway process, the pressure response time is slightly earlier than the temperature response time. Assuming that one pole group is completely out of control, the maximum pressure inside the battery is about 9.3MPa, 3.45MP at equilibrium, the actual temperature is lower than the equilibrium temperature at test, and in principle the internal pressure inside the battery is lower than 3.45MP, since the gas is poured out directly into the perfluorinated hexanone. The outer explosion-proof valve is arranged on the upper shell of the battery, the upper limit of the initial maximum pressure is set to 10MPa, and the air pressure difference exists between the valve and the inner valve, so that the air is cooled.
The novel pole group frame supporting structure 7 adopts an aluminum shell with the thickness of 8mm as a support, the design of the aluminum shell outside is beneficial to heat dissipation and temperature equalization of a battery, the reinforcing ribs are welded outside the aluminum shell to ensure the structural strength, the internal explosion-proof threshold value is 1.8MPa, and the frame strength is required to be greater than the explosion-proof valve strength.
Novel perfluoro-hexanone interlocking fire extinguishing structure, which is characterized in that: the fire-extinguishing concentration of the perfluorinated hexanone is 4-6%, the safety margin is relatively high, the evaporation heat is only 1/25 of that of water, the vapor pressure is 25 times that of water, and the heat absorption is mainly relied on to achieve the fire-extinguishing effect. In the aspect of protecting the environment, the fire extinguishing agent is a green environment-friendly fire extinguishing agent, and is safer to human bodies when in use. The perfluorinated hexanone is liquid at normal temperature and does not belong to dangerous goods, and can be safely stored and transported in a wider temperature range by using a common container under normal pressure. In order to determine the consumption of the perfluorinated hexanone, battery thermal runaway analysis is carried out, the optimal fire extinguishing time of the battery is 30 seconds before, the sensor and the explosion-proof valve are designed to ensure that the perfluorinated hexanone in 5 seconds is in contact with the inside of the battery, oxygen is rapidly isolated, the fire extinguishing effect is achieved, and meanwhile, the perfluorinated hexanone can absorb heat rapidly.
The working principle of the invention is as follows: under the normal working state, the inner part of the battery is divided into 10 electrode groups, so that the specific energy and the structural strength are improved; the self-inhibition capacity of internal thermal runaway is designed, and a protective layer is arranged and phase change heat absorption fire extinguishing material (perfluorinated hexanone) is filled, so that the battery has intrinsic safety; and an intelligent management and control system is designed to monitor the state of the battery according to the sensor and the internal explosion-proof valve. In case of accidents, oxygen is isolated by utilizing the anaerobic characteristic of the perfluorinated hexanone, further spread of thermal runaway is prevented, the temperature of gas is reduced in the perfluorinated hexanone by utilizing the position differential pressure setting of the inner explosion-proof valve and the outer explosion-proof valve, the gas is discharged through the explosion-proof valve, and meanwhile, the strength of the shell is enhanced, so that the compressive strength of the shell is far greater than the explosion-proof threshold value.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (1)
1. The high-capacity high-safety battery structure is characterized in that the inside of a battery is divided into 10 pole groups, each pole group is provided with an independent supporting structure, a flow channel and a current collector and is in the same electrolyte environment, the output of each pole group is finally collected to the total positive pole and the total negative pole of the battery through a bus, a multi-stage protection layer and a filling phase-change heat absorption fire extinguishing material are arranged, each pole group is provided with a plurality of temperature sensors and gas sensors, and an intelligent management and control system rapidly opens an internal explosion-proof valve when the internal thermal runaway of the battery is found according to information acquired by the sensors; the battery structure comprises an intelligent control structure, a battery outer valve, a copper column converging structure, a heat pipe heat conduction structure, a laminated multipolar group grouping structure, a pole group frame structure, a high-safety explosion-proof shell battery structure, an inner valve and a perfluorinated hexanone interlocking fire extinguishing structure; the high-safety explosion-proof shell of the perfluorinated hexanone anti-interlocking fire extinguishing structure is an integral support of a battery, an intelligent control structure and an external valve of the battery are arranged at the top of the explosion-proof shell, a copper column converging structure extends out of the top of the explosion-proof shell and is connected with a laminated multipolar group grouping structure, a pole group frame structure is an internal support of a heat pipe heat conducting structure and the laminated multipolar group grouping structure, the heat pipe heat conducting structure is connected with the laminated multipolar group grouping structure, an internal valve is arranged on the pole group frame structure, and the perfluorinated hexanone anti-interlocking fire extinguishing structure is filled between the pole group frame structure and the high-safety explosion-proof shell battery structure; the pole group adopts a laminated pole group combination mode; the supporting structure adopts an aluminum shell with the thickness of 8mm as a support, a reinforcing rib is welded outside the aluminum shell to ensure the structural strength, the internal explosion-proof threshold value is 1.8MPa, and the frame strength is required to be greater than the explosion-proof valve strength; the phase-change heat-absorbing fire-extinguishing material is perfluoro-hexanone; the flow channel is designed to adopt liquid cooling heat dissipation, the frames on two sides are also used as cold plates, and the large surface of each pole group is directly contacted with a capillary heat pipe with the thickness of 1.2 mm; and the three side surfaces and the bottom surface of each pole group are provided with melting type safety pressure relief devices.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111674235.5A CN114551962B (en) | 2021-12-31 | 2021-12-31 | High-capacity high-safety battery structure |
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| CN202111674235.5A CN114551962B (en) | 2021-12-31 | 2021-12-31 | High-capacity high-safety battery structure |
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| CN114551962B true CN114551962B (en) | 2024-07-16 |
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| CN101871902B (en) * | 2010-05-24 | 2012-06-27 | 北京科技大学 | Test device and test method for limit heat-flow density of porous material for heat pipe |
| CN104795606B (en) * | 2014-01-21 | 2017-04-26 | 微宏动力系统（湖州）有限公司 | liquid-cooled battery pack system |
| CN205452368U (en) * | 2015-12-25 | 2016-08-10 | 广东精进能源有限公司 | Large capacity heat radiation structure aluminum -shell battery |
| CN108390128A (en) * | 2018-04-16 | 2018-08-10 | 西南交通大学 | Battery case liquid-cooling heat radiation structure method for building up and corresponding construction |
| GB2584288B (en) * | 2019-05-28 | 2021-10-13 | Gupta Sanjay | A method of protecting a large battery pack from thermal stresses |
| CN111790083A (en) * | 2020-07-13 | 2020-10-20 | 烟台创为新能源科技股份有限公司 | A lithium-ion battery thermal runaway early warning fire extinguishing system and method |
| CN212848575U (en) * | 2020-07-30 | 2021-03-30 | 华东交通大学 | A battery pack cooling device based on the coupling of phase change and liquid cooling |
| CN112271379A (en) * | 2020-10-19 | 2021-01-26 | 浙江南都电源动力股份有限公司 | Battery pack with explosion-proof and fire-fighting functions |
| CN113725477B (en) * | 2021-09-10 | 2025-05-02 | 陕西奥林波斯电力能源有限责任公司 | A battery tank for large energy storage system |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108183281A (en) * | 2017-12-28 | 2018-06-19 | 力神动力电池系统有限公司 | The lithium ion battery of radiator structure is set in a kind of |
| CN113381087A (en) * | 2021-07-21 | 2021-09-10 | 环安有备族科技有限公司 | Energy storage battery safety device and system |
| CN113471579A (en) * | 2021-08-11 | 2021-10-01 | 陕西奥林波斯电力能源有限责任公司 | High-capacity lithium ion battery |
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