CN111029674A - Battery system capable of effectively preventing thermal runaway of lithium battery - Google Patents
Battery system capable of effectively preventing thermal runaway of lithium battery Download PDFInfo
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- CN111029674A CN111029674A CN201911381470.6A CN201911381470A CN111029674A CN 111029674 A CN111029674 A CN 111029674A CN 201911381470 A CN201911381470 A CN 201911381470A CN 111029674 A CN111029674 A CN 111029674A
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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
- H01M10/42—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
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
-
- 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
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
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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
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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
- 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
- H01M50/342—Non-re-sealable arrangements
- H01M50/3425—Non-re-sealable arrangements in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member
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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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
The invention provides a battery system capable of effectively preventing thermal runaway of a lithium battery. The battery system capable of effectively preventing the thermal runaway of the lithium battery comprises a plurality of shells and a control module; a cell mounted within a housing; the water inlet pipe is arranged in the shell, and one end of the water inlet pipe penetrates through the shell and extends out of the shell; the electromagnetic valve is arranged on the water inlet pipe; one interface of the three-way pipe is communicated with the water inlet pipe; the two water spraying pipes are respectively communicated with the other two connectors of the three-way pipe; the check valve is arranged on the inner wall of the top side of the shell, and the top side of the check valve penetrates through the shell and extends out of the shell; a smoke detection device. The battery system capable of effectively preventing the thermal runaway of the lithium battery has the advantages of timely responding to the thermal runaway of the battery, preventing further fire or explosion and having high safety performance.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a battery system capable of effectively preventing thermal runaway of a lithium battery.
Background
In the case of a fire caused by thermal runaway of the battery, which occurs in recent years, the heat generation rate of the battery is much higher than the heat dissipation rate, and the heat is accumulated in a large amount and is not dissipated in time. CN207353336U is reported by mistake easily with single sensor, and inert gas can not give the electric core cooling, and thermal runaway can not stop, untimely give electric core cooling can lead to becoming whole battery box thermal runaway from an electric core thermal runaway. Other battery system smoke detection devices are commonly installed on the top of the container. When the lithium battery enters thermal runaway, the electrolyte can be decomposed to generate a large amount of smog. But it takes a very long time for these fumes to be generated from the battery module to the smoke detector at the top of the shipping container. In this process, the temperature of the lithium battery further rises, and there is a high possibility that fire or explosion occurs.
Therefore, it is necessary to provide a new battery system capable of effectively preventing thermal runaway of a lithium battery to solve the above technical problems.
Disclosure of Invention
The invention solves the technical problem of providing a battery system which can respond to the thermal runaway of the battery in time, prevent further fire or explosion, has high safety performance and can effectively prevent the thermal runaway of the lithium battery.
In order to solve the above technical problems, the present invention provides a battery system capable of effectively preventing thermal runaway of a lithium battery, comprising: a plurality of housings and a control module; a cell mounted within a housing; the water inlet pipe is arranged in the shell, and one end of the water inlet pipe penetrates through the shell and extends out of the shell; the electromagnetic valve is arranged on the water inlet pipe; one interface of the three-way pipe is communicated with the water inlet pipe; the two water spraying pipes are respectively communicated with the other two connectors of the three-way pipe; the check valve is arranged on the inner wall of the top side of the shell, and the top side of the check valve penetrates through the shell and extends out of the shell; a smoke detection device mounted on a top side inner wall of the housing.
Preferably, a nozzle is installed at one end, far away from the three-way pipe, of the water spraying pipe.
Preferably, the water inlet pipe and the water spraying pipe are both provided with a water pipe fixing frame, and the top side of the water pipe fixing frame is fixedly connected with the inner wall of the top side of the shell.
Preferably, a water level detecting device is installed on the inner wall of the top side of the housing.
Preferably, the smoke detector comprises smoke detectors, the number of the smoke detectors is not less than two, and the smoke detectors are annularly arranged based on one-way valves.
Preferably, one end of each of the water inlet pipes, which is located on the shell, is connected with the same water distribution pipe, and the main water pipe is provided with a main control electromagnetic valve.
Preferably, the electromagnetic valve, the master control electromagnetic valve, the water level detection device and the smoke detection device are all connected with the control module.
Preferably, a temperature detector is installed on the inner wall of the top side of the shell and connected with the control module, and a cooling device is installed on the shell.
Preferably, cooling device includes the cooling tank, is equipped with the coolant liquid in the cooling tank, and cooling tank fixed mounting is in one side of shell, and the inlet is installed on the top side of cooling tank, and in the inlet other end extended to the shell, the liquid outlet was installed to the bottom side of cooling tank, and in the other end of liquid outlet extended to the shell, install the water pump in the cooling tank, the delivery port and the liquid outlet of water pump were connected, install the cooling tube in the shell, and the both ends of cooling tube are connected with inlet and liquid outlet respectively.
Preferably, the water pump is connected with the control module, and the cooling pipe is arranged in a multi-bending mode.
Compared with the related art, the battery system capable of effectively preventing the thermal runaway of the lithium battery has the following beneficial effects:
the invention provides a battery system capable of effectively preventing thermal runaway of a lithium battery.A plurality of smoke detectors are arranged, so that a large amount of smoke can be generated when a battery core enters the thermal runaway, when the two or more smoke detectors are triggered simultaneously, the smoke detectors send signals to a control module, the control module takes the next step of measures, one of the detectors can be prevented from being triggered by mistake due to the design of the plurality of smoke detectors, the smoke detectors are arranged around a one-way valve, so that the smoke can be detected, and the accuracy is ensured because a large amount of generated smoke can be released to the outside of a box body through the one-way valve;
by installing the one-way valve, a large amount of smoke can be generated after the battery cell enters thermal runaway, the shell is completely sealed, the smoke can be released out of the shell through the one-way valve, the situation that the shell is exploded due to overlarge pressure intensity in the shell is avoided, meanwhile, the one-way valve can prevent external oxygen from entering the shell, the battery cell is further prevented from being ignited, and meanwhile, the waterproof performance of the shell cannot be damaged by the one-way valve;
by arranging the main control electromagnetic valve and the electromagnetic valve, under normal conditions, the main control electromagnetic valve and the electromagnetic valve are all in a closed state, and no water exists in the main water pipe, the water diversion pipe, the water inlet pipe and the water spray pipe, so that the electronic components in the module can be ensured not to be contacted with water to cause component damage, when the control module receives a signal of the smoke detection device and judges that the battery cell is about to enter a thermal runaway state, the control module controls to open the main control electromagnetic valve and the electromagnetic valve in the battery box, water can be sprayed onto the battery cell through the spray head, a great deal of heat can be brought away in the phase change process from liquid to gas to cool the battery cell, the highest temperature of the water in a liquid state is one hundred ℃, the temperature of the battery cell after the whole battery box is filled with the water finally cannot exceed one hundred ℃, the thermal runaway usually occurs at one hundred fifty to two hundred ℃, and, meanwhile, the one-way valve can ensure that the gas in the box body can be continuously discharged when water continuously flows into the shell;
through setting up water level monitoring device, after water was full of whole shell, water level monitoring device was triggered, and control module control main control solenoid valve and solenoid valve are closed, prevent that the water in the shell from spilling over to the outside.
Through setting up temperature detector and cooling device, temperature detector gives control module with the temperature data transmission in the shell in real time, and when temperature detector detected the high temperature, control module can start the water pump, and the cooling liquid circulation flow in the water pump drive cooling tank is cooled down through the cooling tube.
The invention can monitor that the battery core enters a thermal runaway state at the first time, inhibit the thermal runaway by injecting water at the first time, is direct and effective, and simultaneously ensures that other normal battery boxes are not influenced.
Drawings
Fig. 1 is a schematic structural diagram of a battery system capable of effectively preventing thermal runaway of a lithium battery according to a first embodiment of the present invention;
FIG. 2 is a schematic view of the internal structure shown in FIG. 1;
FIG. 3 is a side cross-sectional structural view of FIG. 1;
fig. 4 is a flowchart of a first embodiment of a battery system effective to prevent thermal runaway of a lithium battery;
fig. 5 is a block diagram illustrating a first embodiment of a battery system capable of effectively preventing thermal runaway of a lithium battery according to the present invention;
fig. 6 is a schematic structural diagram of a second embodiment of a battery system capable of effectively preventing thermal runaway of a lithium battery according to the present invention;
FIG. 7 is a schematic structural view of the cooling tube shown in FIG. 6;
reference numbers in the figures: 1. the device comprises a shell, 2, an electric core, 3, a water inlet pipe, 4, an electromagnetic valve, 5, a three-way pipe, 6, a water spraying pipe, 7, a spray head, 8, a water pipe fixing frame, 9, a one-way valve, 10, a smoke detection device, 11, a water level detection device, 12, a temperature detector, 13, a cooling tank, 14, a liquid inlet, 15, a water pump, 16, a liquid outlet, 17 and a cooling pipe.
Detailed Description
The invention is further described with reference to the following figures and embodiments.
The first embodiment:
referring to fig. 1 to 5, in a first embodiment of the present invention, a battery system for effectively preventing thermal runaway of a lithium battery includes: a plurality of housings 1 and control modules; the battery cell 2 is mounted in the shell 1; the water inlet pipe 3 is arranged in the shell 1, and one end of the water inlet pipe 3 penetrates through the shell 1 and extends out of the shell 1; the electromagnetic valve 4 is arranged on the water inlet pipe 3; one interface of the three-way pipe 5 is communicated with the water inlet pipe 3; the two water spraying pipes 6 are respectively communicated with the other two connectors of the three-way pipe 5; the check valve 9 is installed on the inner wall of the top side of the shell 1, and the top side of the check valve 9 penetrates through the shell 1 and extends out of the shell 1; a smoke detection device 10, said smoke detection device 10 being mounted on the top side inner wall of the housing 1.
And the water inlet pipe 3 and the water spraying pipe 6 are both provided with a water pipe fixing frame 8, and the top side of the water pipe fixing frame 8 is fixedly connected with the inner wall of the top side of the shell 1.
And a water level detection device 11 is installed on the inner wall of the top side of the shell 1.
The smoke detection device 10 comprises smoke detectors, the number of the smoke detectors is not less than two, and the smoke detectors are annularly arranged on the basis of the one-way valves 9.
A plurality of one end of the inlet pipe 3, which is positioned on the shell 1, is connected with the same shunt pipe, and a main control electromagnetic valve is arranged on the main water pipe.
The electromagnetic valve 4, the master control electromagnetic valve, the water level detection device 11 and the smoke detection device are all connected with the control module.
Compared with the related art, the battery system capable of effectively preventing the thermal runaway of the lithium battery has the following beneficial effects:
the invention provides a battery system capable of effectively preventing thermal runaway of a lithium battery.A plurality of smoke detectors are arranged, so that a large amount of smoke can be generated when an electric core 2 enters the thermal runaway, when the two or more smoke detectors are triggered simultaneously, the smoke detectors send signals to a control module, the control module takes the next step of measures, one of the detectors can be prevented from being triggered by mistake due to the design of the plurality of smoke detectors, the smoke detectors are arranged around a one-way valve 9, so that the smoke can be detected, and the accuracy is ensured because a large amount of generated smoke can be released to the outside of a box body through the one-way valve 9; by installing the check valve 9, a large amount of smoke can be generated after the battery cell 2 enters thermal runaway, the shell 1 is completely sealed, the smoke can be released out of the shell 1 through the check valve 9, the situation that the shell 1 explodes due to overlarge pressure intensity in the shell 1 is avoided, meanwhile, the check valve 9 can prevent external oxygen from entering the shell 1, the battery cell 2 is further prevented from being ignited, and meanwhile, the waterproof performance of the shell 1 cannot be damaged by the check valve 9; by arranging the main control electromagnetic valve and the electromagnetic valve 4, under normal conditions, the main control electromagnetic valve and the electromagnetic valve are all in a closed state, and no water exists in the main water pipe, the water dividing pipe, the water inlet pipe 3 and the water spraying pipe 6, so that electronic components in the module can be ensured not to be contacted with water to cause component damage, when the control module receives a signal of the smoke detection device 10 and judges that the battery cell enters a thermal runaway state, the control module controls to open the main control electromagnetic valve and the electromagnetic valve 4 in the battery box, water can be sprayed onto the battery cell 2 through the spray head 7, a great deal of heat can be taken away by the water in a phase change process from liquid to gas to cool the battery cell 2, the highest temperature of the water in a liquid state is one hundred ℃, the temperature of the battery cell 2 after the whole battery box is filled with the water finally cannot exceed one hundred ℃, and the thermal runaway generally occurs at one hundred, thermal runaway can be effectively prevented, and meanwhile, the one-way valve 9 can ensure that gas in the shell 1 can be continuously discharged when water continuously flows into the shell 1; through setting up water level monitoring device 11, after water was full of whole shell 1, water level monitoring device 11 was triggered, and control module control main control solenoid valve and solenoid valve 4 close, prevent that the water in the shell 1 from spilling over to the outside. The invention can monitor that the electric core 2 enters a thermal runaway state in the first time, and simultaneously inhibit the thermal runaway by injecting water in the first time, thereby being direct and effective and simultaneously ensuring that other normal battery boxes are not influenced.
Second embodiment:
based on a battery system capable of effectively preventing thermal runaway of a lithium battery provided by a first embodiment of the application, a second embodiment of the application provides another battery system capable of effectively preventing thermal runaway of a lithium battery. The second embodiment is merely a preferred way of the first embodiment, and the implementation of the second embodiment does not affect the implementation of the first embodiment alone.
The second embodiment of the present invention will be further described with reference to the drawings and the following description.
Referring to fig. 6 to 7, the present embodiment is different from the first embodiment in that a temperature detector 12 is installed on an inner wall of a top side of the housing 1, the temperature detector 12 is connected to a control module, and a cooling device is installed on the housing 1.
Cooling device includes cooling tank 13, is equipped with the coolant liquid in the cooling tank 13, cooling tank 13 fixed mounting is in one side of shell 1, inlet 14 is installed on the top side of cooling tank 13, the inlet 14 other end extends to in the shell 1, liquid outlet 16 is installed to the bottom side of cooling tank 13, the other end of liquid outlet 16 extends to in the shell 1, install water pump 15 in the cooling tank 13, water pump 15's delivery port is connected with liquid outlet 16, install cooling tube 17 in the shell 1, the both ends of cooling tube 17 are connected with inlet 14 and liquid outlet 16 respectively.
The water pump 15 is connected with the control module, and the cooling pipe 17 is arranged in a multi-bending mode.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A battery system capable of effectively preventing thermal runaway of a lithium battery is characterized by comprising:
a plurality of housings and a control module;
a cell mounted within a housing;
the water inlet pipe is arranged in the shell, and one end of the water inlet pipe penetrates through the shell and extends out of the shell;
the electromagnetic valve is arranged on the water inlet pipe;
one interface of the three-way pipe is communicated with the water inlet pipe;
the two water spraying pipes are respectively communicated with the other two connectors of the three-way pipe;
the check valve is arranged on the inner wall of the top side of the shell, and the top side of the check valve penetrates through the shell and extends out of the shell;
a smoke detection device mounted on a top side inner wall of the housing.
2. The battery system capable of effectively preventing thermal runaway of a lithium battery as claimed in claim 1, wherein a spray head is installed at one end of the water spray pipe, which is far away from the three-way pipe.
3. The battery system capable of effectively preventing thermal runaway of a lithium battery as claimed in claim 1, wherein the water inlet pipe and the water spray pipe are both provided with water pipe fixing frames, and the top sides of the water pipe fixing frames are fixedly connected with the inner wall of the top side of the shell.
4. The battery system capable of effectively preventing thermal runaway of a lithium battery as claimed in claim 1, wherein a water level detecting means is installed on an inner wall of a top side of the case.
5. The battery system capable of effectively preventing thermal runaway of a lithium battery as claimed in claim 1, wherein the smoke detector comprises not less than two smoke detectors, and the smoke detectors are annularly arranged based on one-way valves.
6. The battery system capable of effectively preventing thermal runaway of a lithium battery as claimed in claim 1, wherein one end of the water inlet pipes positioned on the outer shell is connected with the same water diversion pipe, and a main control electromagnetic valve is installed on the main water pipe.
7. The battery system capable of effectively preventing thermal runaway of a lithium battery as claimed in claim 1, wherein the solenoid valve, the master control solenoid valve, the water level detection device and the smoke detection device are all connected with the control module.
8. The battery system capable of effectively preventing thermal runaway of a lithium battery as claimed in claim 1, wherein a temperature detector is mounted on an inner wall of a top side of the housing, the temperature detector is connected with the control module, and a cooling device is mounted on the housing.
9. The battery system capable of effectively preventing thermal runaway of the lithium battery as claimed in claim 1, wherein the cooling device comprises a cooling tank, the cooling tank is filled with cooling liquid, the cooling tank is fixedly installed at one side of the housing, a liquid inlet is installed at the top side of the cooling tank, the other end of the liquid inlet extends into the housing, a liquid outlet is installed at the bottom side of the cooling tank, the other end of the liquid outlet extends into the housing, a water pump is installed in the cooling tank, a water outlet of the water pump is connected with the liquid outlet, a cooling pipe is installed in the housing, and two ends of the cooling pipe are respectively connected with the liquid inlet and.
10. The battery system capable of effectively preventing thermal runaway of a lithium battery as claimed in claim 9, wherein the water pump is connected to the control module, and the cooling pipe is provided in a multi-bend arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911381470.6A CN111029674A (en) | 2019-12-27 | 2019-12-27 | Battery system capable of effectively preventing thermal runaway of lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911381470.6A CN111029674A (en) | 2019-12-27 | 2019-12-27 | Battery system capable of effectively preventing thermal runaway of lithium battery |
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| CN111029674A true CN111029674A (en) | 2020-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911381470.6A Pending CN111029674A (en) | 2019-12-27 | 2019-12-27 | Battery system capable of effectively preventing thermal runaway of lithium battery |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112421146A (en) * | 2020-11-23 | 2021-02-26 | 杭州叁沃智能科技有限公司 | Battery box for dealing with battery ignition |
| CN114069169A (en) * | 2021-11-30 | 2022-02-18 | 重庆长安新能源汽车科技有限公司 | Water injection valve for power battery, power battery and electric automobile |
| CN114497814A (en) * | 2022-04-18 | 2022-05-13 | 深圳市尚亿芯科技有限公司 | Lithium battery box with automatic fire extinguishing and explosion preventing functions |
-
2019
- 2019-12-27 CN CN201911381470.6A patent/CN111029674A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112421146A (en) * | 2020-11-23 | 2021-02-26 | 杭州叁沃智能科技有限公司 | Battery box for dealing with battery ignition |
| CN114069169A (en) * | 2021-11-30 | 2022-02-18 | 重庆长安新能源汽车科技有限公司 | Water injection valve for power battery, power battery and electric automobile |
| CN114069169B (en) * | 2021-11-30 | 2023-05-26 | 重庆长安新能源汽车科技有限公司 | Water injection valve for power battery, power battery and electric automobile |
| CN114497814A (en) * | 2022-04-18 | 2022-05-13 | 深圳市尚亿芯科技有限公司 | Lithium battery box with automatic fire extinguishing and explosion preventing functions |
| CN114497814B (en) * | 2022-04-18 | 2022-07-01 | 深圳市尚亿芯科技有限公司 | Lithium battery box with automatic fire extinguishing and explosion preventing functions |
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