CN112615079A - Flame-proof battery pack - Google Patents
Flame-proof battery pack Download PDFInfo
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- CN112615079A CN112615079A CN202011474293.9A CN202011474293A CN112615079A CN 112615079 A CN112615079 A CN 112615079A CN 202011474293 A CN202011474293 A CN 202011474293A CN 112615079 A CN112615079 A CN 112615079A
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- battery pack
- heat
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- pipe
- shell
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
- H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
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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
- 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
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
- H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6569—Fluids undergoing a liquid-gas phase change or transition, e.g. evaporation or condensation
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- 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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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
The present invention provides a flame-proof battery pack, comprising: the battery cell is completely immersed in the heat-conducting insulating liquid; a first heat conducting pipe, wherein one part of the first heat conducting pipe is arranged outside the battery pack shell and/or on the surface of the battery pack shell, and the other part of the first heat conducting pipe is arranged inside the battery pack shell and is in contact with each battery cell; and one part of the second heat conduction pipe is arranged outside the battery pack shell and/or on the surface of the battery pack shell, and the other part of the second heat conduction pipe is arranged inside the battery pack shell and is immersed in the heat conduction insulating liquid. According to the invention, the first heat conduction pipe is used for dissipating heat of the battery cell, and the risk caused by thermal failure of the battery cell is reduced through the heat conduction insulating liquid and the second heat conduction pipe; on the other hand, heat transfer is strengthened and the temperature is reduced through phase change heat absorption.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a flame-retardant battery pack.
Background
The battery pack is a main energy storage component of the electric automobile and consists of lithium batteries. The safety and reliability of lithium battery packs are key issues related to personal safety and property safety. The thermal runaway and spontaneous combustion of the lithium battery can be caused due to the reasons of internal short circuit of the battery caused by deformation of a battery module caused by severe impact, overcharge or overdischarge of the battery caused by faults of a battery management system, short circuit caused by poor external insulation design of a battery core and the like.
The current lithium battery pack consists of dozens of cells to thousands of cells, once a single cell spontaneously ignites, the surrounding cells and even other cells in the whole battery pack are easily affected, and the linkage effect may cause more serious loss. Therefore, there is a need for a fire protection scheme for lithium battery packs that prevents the initial thermal runaway from reaching adjacent cells within the battery pack. There are many existing methods for reducing the risk of thermal runaway, including flameproof and explosion-proof battery storage structures, new battery chemistries, thermally managed battery modules, etc.
Chinese patent application No. 201610749852.X discloses a lithium cell fire prevention thermal-insulated bin, including bearing the base, bearing fossil fragments, bearing tray and fire-retardant board. The invention has good bearing capacity and positioning capacity on one hand, and can effectively prevent the lithium battery around the fault from being damaged and burning caused by fire spreading when the lithium battery is spontaneously combusted due to the fault in time, thereby improving the safety and reliability of the storage of the lithium battery.
201910137246.6 discloses an overcharge-proof lithium battery electrolyte and its preparation method, wherein the electrolyte comprises electrolyte lithium salt, non-aqueous organic solvent, overcharge-proof additive, functional additive and flame retardant. The electrolyte has high stability, can automatically block the oxidative decomposition reaction of the electrolyte and an electrode material under the condition of overcharge, has excellent overcharge prevention performance, good high-voltage cycle performance and high-temperature and low-temperature change resistance.
201480001895.9 discloses a secondary battery and a secondary battery module including the same, which includes a battery pack, a temperature sensor and a sensor lead, and a battery case. The secondary battery has a structure for allowing gas generated during charge/discharge of the secondary battery to be easily discharged to a surrounding area of a battery assembly, and quickly and correctly measuring a temperature change of the secondary battery.
The prior art is a prevention scheme for reducing the risk of thermal runaway or reducing the risk of thermal runaway propagation, and focuses on temperature control and flame retardance, but still has the risk that lithium can not be completely separated from air and water. When a single battery core is overcharged, lithium ions deposited on the outer side of a negative electrode are separated out by a lithium simple substance, and a generated lithium dendritic crystal can penetrate through a diaphragm, so that the thermal runaway of a short circuit of the positive electrode and the negative electrode is caused, a large amount of gas is generated by the decomposition of electrolyte at a high temperature, the shell of the battery core is broken, the electrolyte flows outwards, and the lithium simple substance is exposed. If the battery pack system cannot discharge air and water, severe chemical reaction will occur, resulting in higher temperature, thereby affecting the surrounding cells in the battery pack and bringing a linkage effect.
Disclosure of Invention
In order to solve at least one of the above technical problems, the present invention provides a flame-proof battery pack to solve the technical problem of thermal runaway risk of the battery pack. The purpose of the invention is realized by the following scheme:
a flame-retardant battery pack comprises a battery pack shell and a plurality of battery cells arranged in the battery pack shell, and further comprises: a thermally conductive insulating fluid disposed within the battery pack housing, the electrical core being completely immersed in the thermally conductive insulating fluid; the phase change temperature of the heat-conducting insulating liquid is not higher than the temperature critical value corresponding to the thermal runaway of the battery core; a first heat conducting pipe, wherein one part of the first heat conducting pipe is arranged outside the battery pack shell and/or on the surface of the battery pack shell, and the other part of the first heat conducting pipe is arranged inside the battery pack shell and is in contact with each battery cell; and one part of the second heat conduction pipe is arranged outside the battery pack shell and/or on the surface of the battery pack shell, and the other part of the second heat conduction pipe is arranged inside the battery pack shell and is immersed in the heat conduction insulating liquid, so that the heat absorbed by the heat conduction insulating liquid through phase change action is transferred to the outside of the battery pack shell and/or the surface of the battery pack shell.
Optionally, the battery pack apparatus further comprises: and the heat conduction and insulation thermal interface material is filled between the first heat conduction pipe and the battery cells, and/or the heat conduction and insulation thermal interface material is filled between the battery cells.
Optionally, the thermally conductive and insulating thermal interface material is an elastomeric material; the strength of the elastomer material is greater than a preset strength threshold value, and the elastomer material is used for fixing the battery cell; and the melting point of the elastomer material is greater than a preset melting point threshold value, and the elastomer material is used for playing a role of isolating when the battery core is burnt.
Optionally, the thermally conductive and insulating thermal interface material comprises:
silicone elastomers or thermoplastic elastomers.
Optionally, first heat pipe is the liquid cooling tube, the intussuseption of liquid cooling tube is filled with heat conduction liquid medium, liquid cooling tube and pump intercommunication.
Optionally, the second heat conducting pipe is a heat pipe, and design parameters of the heat pipe are determined according to the latent heat of vaporization and the phase change temperature of the heat conducting insulating liquid.
Optionally, the cold end of the heat pipe is disposed on the surface of the battery pack case, and/or the cold end of the heat pipe is disposed on a cooling component outside the battery pack case.
Optionally, the heat conducting insulating liquid is an inert material that does not chemically react with the manufacturing material of the battery cell and the product of the battery cell, and the heat conducting insulating liquid is a supercooled liquid.
Optionally, the thermally conductive insulating liquid is an organofluorine compound.
Optionally, the thermally conductive insulating liquid fills the interior of the battery pack case.
The invention realizes the following technical effects: 1. the battery pack mainly radiates heat through the first heat conduction pipe under the normal working state; 2. the heat-conducting insulating liquid rapidly takes away a large amount of heat under the phase change action when a small amount of battery cells are out of control due to heat, and oxygen and water are isolated when the battery cells generate metal simple substances, so that the combustion of the metal simple substances is prevented, and chain reaction caused by the out of control due to the heat in the small amount of battery cells is prevented from spreading to the whole battery pack; 3. the second heat conduction pipe can timely emit heat absorbed by the phase change of the heat conduction insulating liquid. The technical scheme provided by the invention can reduce the negative influence caused by thermal runaway of a small number of battery cells, can reduce the risk of fire caused by the precipitation of a metal simple substance in the battery pack, and has stronger heat dissipation management capability, thereby greatly improving the safety of the battery pack.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the principles of the invention.
Fig. 1 is an internal structural view of a flame-proof battery pack provided in the present invention;
fig. 2 is a structural view of an external heat pipe of the flame-retardant battery pack according to the present invention.
Wherein:
100. a battery pack case; 200. an electric core; 300. heat-conducting insulating liquid; 400. a first heat conductive pipe; 401. a pump; 500. a thermally conductive, electrically insulating thermal interface material; 600. a second heat conductive pipe (heat pipe); 601. and (4) cooling ends of the heat pipes.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Referring to fig. 1 and 2, the flame-retardant battery pack provided by the present invention includes a battery pack case 100, a plurality of battery cells 200 disposed in the battery pack case, a phase-change heat conducting insulating liquid 300 disposed in the battery pack case, a first heat conducting pipe 400, and a second heat conducting pipe 600. The battery cell 200 is completely immersed in the heat-conducting insulating liquid 300, and the phase-change temperature of the heat-conducting insulating liquid 300 is not higher than a temperature critical value corresponding to thermal runaway of the battery cell; a part of the first heat conductive pipe 400 is disposed outside and/or on the surface of the battery pack case 100, and another part is disposed inside the battery pack case 100 and is in contact with each of the battery cells 200; a portion of the second heat conductive pipe 600 is disposed outside and/or on the surface of the battery pack case 100, and another portion is disposed inside the battery pack case 100 and immersed in the heat conductive and insulating liquid 300, for transferring heat absorbed by the heat conductive and insulating liquid 300 through phase change to the outside and/or on the surface of the battery pack case 100.
In the embodiment of the present invention, the battery cell 200 is immersed in the heat conducting insulating liquid 300 to completely separate the metal simple substance possibly separated from the battery cell from air and water, for example, a lithium battery may separate out a lithium simple substance, and the lithium simple substance is very easily combusted after contacting with air and water, and the heat conducting insulating liquid can isolate the lithium simple substance from air and water. Meanwhile, the phase change temperature of the heat-conducting insulating liquid 300 is not higher than the temperature critical value corresponding to the thermal runaway of the battery cell, so that heat emitted by a small number of battery cells in a thermal runaway state can be rapidly absorbed by the heat-conducting insulating liquid, and the risk of battery pack combustion caused by further rise of temperature is avoided. The temperature critical value corresponding to the thermal runaway of the battery cell is a value defined artificially, and specifically is the lowest value of temperature values of liquid in a certain area near the battery cell where the thermal runaway occurs when the thermal runaway of the battery pack device occurs; the temperature critical value corresponding to the thermal runaway of the battery core can be obtained through multiple experiments.
Preferably, the heat conducting insulating liquid 300 is a supercooled liquid, and excessive boiling is avoided, so as to reduce a large amount of bubbles generating hot spots, wherein the hot spots refer to local areas with large temperature gradients.
Preferably, the heat conducting insulating liquid 300 has a high heat conductivity coefficient and good phase change heat transfer performance, so as to meet the heat dissipation requirement under the condition of thermal runaway of the battery cell.
Preferably, the thermally conductive insulating fluid 300 is an inert material that does not chemically react with the cell fabrication material and the cell product. The production materials of the battery core can be a shell, a positive electrode, a negative electrode, a porous diaphragm, electrolyte and the like of the battery core, and the products of the battery core refer to various substances generated by the battery core through chemical reaction, wherein the substances comprise lithium simple substances precipitated due to battery material impurities or overcharge.
Preferably, the embodiment of the present invention uses an organic fluorine compound as the heat conducting and insulating liquid, and the properties of the organic fluorine compound include: 1. the chemical inertness does not chemically react with the elemental lithium, does not chemically react with each material in the battery cell, and does not chemically react with each component material in the battery module; 2. the phase change latent heat is large, the boiling point is low, and the heat on the battery cell can be taken away through phase change; 3. the electrical insulation performance is good; 4. has the characteristic of flame retardance. Therefore, the requirements on various performances of the heat-conducting insulating liquid can be met.
Preferably, the heat conductive insulating liquid 300 fills the inside of the battery pack case, thereby completely isolating the battery cells 200 from the air.
In the embodiment of the present invention, the first heat pipe 400 is used for contact heat dissipation of the battery cell 200, and any heat pipe device may be used, for example, as shown in fig. 1, a heat conducting liquid may be filled in the first heat pipe and is communicated with the pump 401, and the liquid in the first heat pipe is circulated by driving of the pump to form a liquid cooling circulation system, so as to dissipate heat of the battery cell 200 to the outside of the battery pack. For another example, the first heat conducting pipe may be designed as a heat pipe, a phase change heat dissipation medium is filled in the heat pipe, and the cold end of the heat pipe is located outside the battery pack case, so that heat of the battery cell is dissipated to the outside of the battery pack through the heat pipe.
Preferably, the first heat conduction pipe is an aluminum cooling pipe, and the pipe is communicated with a pump to form a circulation to form a liquid cooling system. The cooling fluid in the pipes is typically water, water and glycol, mineral oil, R134a, etc.
Since the cells in the battery pack are usually arranged in multiple rows and multiple columns, the portion of the first heat conduction pipe contacting the cells is also designed to be arranged in multiple rows or multiple columns, and the specific form of the first heat conduction pipe can be referred to as the structure labeled 400 in fig. 1.
The second heat pipe may also be any heat pipe device, and preferably, the second heat pipe 600 is a heat pipe, the hot end of the heat pipe is a part immersed in the heat conducting insulating liquid 300, the cold end of the heat pipe is disposed on the surface of the battery pack case 100 or outside the battery pack case 100, when the cold end of the heat pipe is disposed on the surface of the battery pack case 100, the heat can be passively dissipated through the surface of the battery pack case 100, and when the cold end of the heat pipe is disposed outside the battery pack case 100, the heat pipe may be specifically disposed near a cooling component, for example, near a fan. Set up the second heat pipe into the heat pipe, can conduct away the heat of the electric core under the state of a small amount of thermal runaway that heat conduction insulating liquid 300 absorbed rapidly, reduced thermal runaway risk by a wide margin.
Referring to fig. 2, the heat pipe is laid on the surface of the battery pack case, and a cold end is arranged outside the battery pack case, so that heat generated by a small number of cells due to thermal runaway is dissipated to the outside of the battery pack.
Further, the heat conduction efficiency of the heat pipe is designed according to the latent heat of vaporization and the phase change temperature of the heat conduction insulating liquid. The heat dissipation efficiency of the heat pipe can be higher than the heat generation efficiency of the battery cells under the state that the preset number of battery cells are out of control, namely, the heat dissipation efficiency of the heat pipe can be adjusted by adjusting the pipe diameter, the number of pipelines, the material and the internal medium of the heat pipe through experiments or calculation, so that the working temperature and the heat conduction efficiency of the heat pipe are matched with a system.
Referring to fig. 1, the flame-retardant battery pack according to the embodiment of the invention further includes a heat conducting and insulating thermal interface material 500, where the heat conducting and insulating thermal interface material 500 is filled between the first heat conducting pipe 400 and the battery cell 200 and/or between adjacent battery cells 200, and the heat conducting and insulating thermal interface material 500 enables heat to be conducted between the first heat conducting pipe 400 and the battery cell 200 and between adjacent battery cells 200 through the heat conducting and insulating thermal interface material 500, so as to improve a heat dissipation effect. The strength of the heat-conducting and insulating thermal interface material 500 is greater than a preset strength threshold value and is used for fixing the battery cell; and the melting point of the thermal conductive and insulating thermal interface material 500 is greater than the preset melting point threshold, and is used for playing a role of isolating when the battery cell is burnt.
A typical material of the thermal conductive and insulating thermal interface material 500 is a silicon elastomer or a thermoplastic elastomer, and the filling in the battery pack functions as: 1. fixing the electric core, discharging air gaps, removing thermal contact resistance, and facilitating the heat generated by the electric core to be conducted to a cooling pipeline and the surrounding heat-conducting insulating liquid; 2. concentrated stress and frictional heat generation between the battery cell and other components during vehicle running are reduced.
In summary, the technical scheme provided by the invention can reduce the influence of thermal runaway of a single battery cell, i.e. prevent the thermal runaway from influencing other battery cells in the battery pack. The battery cell is completely immersed in the heat-conducting insulating liquid, so that the flame-retardant effect is achieved, and a mode of combining two sets of heat-radiating systems is adopted; on one hand, the lithium simple substance is completely separated from air and water, and on the other hand, the heat management requirement of the battery pack is ensured.
In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
It will be understood by those skilled in the art that the foregoing embodiments are merely for clarity of description and are not intended to limit the scope of the invention. Other variations or modifications will occur to those skilled in the art based on the foregoing disclosure and are within the scope of the invention.
Claims (10)
1. The utility model provides a fire-retardant group battery, includes the group battery shell and set up in a plurality of electric cores in the group battery shell, its characterized in that still includes:
a thermally conductive insulating fluid disposed within the battery pack housing, the electrical core being completely immersed within the thermally conductive insulating fluid; the phase change temperature of the heat-conducting insulating liquid is not higher than the temperature critical value corresponding to the thermal runaway of the battery core;
a first heat conducting pipe, wherein one part of the first heat conducting pipe is arranged outside the battery pack shell and/or on the surface of the battery pack shell, and the other part of the first heat conducting pipe is arranged inside the battery pack shell and is in contact with each battery cell;
and one part of the second heat conduction pipe is arranged outside the battery pack shell and/or on the surface of the battery pack shell, and the other part of the second heat conduction pipe is arranged inside the battery pack shell and is immersed in the heat conduction insulating liquid, so that the heat absorbed by the heat conduction insulating liquid through phase change action is transferred to the outside of the battery pack shell and/or the surface of the battery pack shell.
2. The flameproof battery pack according to claim 1, characterized by further comprising:
and the heat conduction and insulation thermal interface material is filled between the first heat conduction pipe and the battery cells, and/or the heat conduction and insulation thermal interface material is filled between the battery cells.
3. The flame resistant battery pack of claim 2, wherein the thermally conductive, insulative thermal interface material is an elastomeric material; the strength of the elastomer material is greater than a preset strength threshold value, and the elastomer material is used for fixing the battery cell; and the melting point of the elastomer material is greater than a preset melting point threshold value, and the elastomer material is used for playing a role of isolating when the battery core is burnt.
4. The flame resistant battery pack of claim 3, wherein the thermally conductive, insulative thermal interface material comprises:
silicone elastomers or thermoplastic elastomers.
5. The fire resistant battery pack of claim 1, wherein said first heat pipe is a liquid-cooled heat pipe filled with a heat conducting liquid medium, said liquid-cooled heat pipe being in communication with a pump.
6. The flame resistant battery pack of claim 1, wherein the second heat conductive pipe is a heat pipe.
7. The flame resistant battery pack of claim 6, wherein the cold end of the heat pipe is disposed on a surface of the battery pack housing and/or the cold end of the heat pipe is disposed on a cooling component external to the battery pack housing.
8. The flame-retardant battery pack according to claim 1, wherein the heat-conducting insulating liquid is an inert material that does not chemically react with a manufacturing material of the cell and a product of the cell, and the heat-conducting insulating liquid is a supercooled liquid.
9. The flameproof battery of claim 8, wherein the thermally conductive insulating liquid is an organofluorine compound.
10. The flameproof battery pack according to claim 1, wherein the thermally conductive insulating liquid fills the inside of the battery pack case.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011474293.9A CN112615079A (en) | 2020-12-15 | 2020-12-15 | Flame-proof battery pack |
| CN202110410674.9A CN112993440A (en) | 2020-12-15 | 2021-04-14 | Flame-proof battery pack |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011474293.9A CN112615079A (en) | 2020-12-15 | 2020-12-15 | Flame-proof battery pack |
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| CN112615079A true CN112615079A (en) | 2021-04-06 |
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| CN202110410674.9A Pending CN112993440A (en) | 2020-12-15 | 2021-04-14 | Flame-proof battery pack |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114512752A (en) * | 2021-11-19 | 2022-05-17 | 九环储能科技有限公司 | Monomer casing, energy storage monomer, energy storage cluster and energy storage device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114094214B (en) * | 2021-11-23 | 2024-01-26 | 中国民航大学 | Battery thermal safety prevention and control device and method |
| US11811036B1 (en) | 2022-10-14 | 2023-11-07 | Beta Air, Llc | Apparatus and method for fault detection in a battery module |
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| JP2013062023A (en) * | 2010-02-23 | 2013-04-04 | Bosch Corp | Battery pack |
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| CN111755777A (en) * | 2020-06-24 | 2020-10-09 | 蜂巢能源科技有限公司 | Immersed cooling module and low-temperature heating control method and equipment thereof |
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- 2020-12-15 CN CN202011474293.9A patent/CN112615079A/en active Pending
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114512752A (en) * | 2021-11-19 | 2022-05-17 | 九环储能科技有限公司 | Monomer casing, energy storage monomer, energy storage cluster and energy storage device |
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