CN216670218U - Gas collecting device - Google Patents
Gas collecting device Download PDFInfo
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- CN216670218U CN216670218U CN202123073597.7U CN202123073597U CN216670218U CN 216670218 U CN216670218 U CN 216670218U CN 202123073597 U CN202123073597 U CN 202123073597U CN 216670218 U CN216670218 U CN 216670218U
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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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Abstract
The utility model provides a gas collecting device which is used for the thermal runaway test research of a battery cell and comprises an explosion-proof tank, wherein the top of the explosion-proof tank is provided with at least one gas collecting port, the gas collecting port is used for collecting gas generated by the thermal runaway test of the battery cell, the explosion-proof tank is also provided with a plurality of sampling terminals and used for monitoring sample parameters and environmental parameters in the thermal runaway process in real time, and the explosion-proof tank is also provided with a plurality of heating terminals to realize the capability of triggering multiple thermal runaway. The gas collecting device provides parallel gas component analysis sample amount through a plurality of paths of parallel gas collecting ports, and the accuracy of a test analysis result is improved; the explosion-proof tank provides a safe test environment and effectively collects gas; the gas collecting device is beneficial to researching thermal runaway products and explosion danger of the battery, and has important practical significance.
Description
Technical Field
The utility model relates to the technical field of battery core thermal runaway, in particular to a gas collecting device.
Background
When a battery cell in the battery is subjected to a thermal runaway test, when an exothermic reaction in the battery is uncontrollable, the heat generated by the reaction can further promote the exothermic reaction, possibly resulting in combustion and even explosion; therefore, the test is generally carried out in an explosion-proof safety room or an explosion-proof box to avoid the injury of personnel caused by burning or explosion. The generation of thermal runaway of the battery is accompanied with the damage of the internal structure of the battery, a column of chemical reaction can occur between the electrode material and the electrolyte, a large amount of gas is generated, the gas has toxicity and explosion property, great danger exists, the gas is difficult to completely disperse in a short time in a closed space, the smell stays for a long time, and safety and health hazards exist when testers subsequently enter a test site to clean the site.
SUMMERY OF THE UTILITY MODEL
The utility model provides a gas collecting device, aiming at overcoming the defect that no safe and effective gas collecting device in the prior art can carry out diversified collection and sampling on gas generated in the process of testing the thermal runaway of a battery cell.
The utility model solves the technical problems through the following technical scheme:
the utility model provides a gas collection device for the thermal runaway test research of electric core, electric core can be single electric core, also can be a plurality of electric cores (for example, the battery of constituteing by a plurality of electric cores), gas collection device includes explosion-proof jar, explosion-proof jar is provided with at least one gas collection mouth, gas collection mouth is used for collecting the gas that the thermal runaway test of electric core produced.
In the scheme, the gas collecting device samples and researches the thermal runaway product and the explosion danger of the battery through the gas collecting port, can purposefully control the situation in the subsequent application field, and takes effective measures in time to guarantee the life and property safety of personnel, thereby having important practical significance; when a plurality of gas collecting ports are arranged, parallel gas component analysis sample amount can be provided, the analysis result deviation possibly existing in single sample amount is reduced, and the accuracy of the test analysis result is improved; the explosion-proof tank provides a safe testing environment and effectively collects gas generated by battery thermal runaway, so that the battery thermal runaway test is ensured to be in a locally limited environment, the personal safety of testers is ensured, and the pollution of the thermal runaway gas to the environment and the possible health hazard to the testers are reduced.
Preferably, the explosion-proof tank is further provided with at least one in-tank state sampling terminal, and the in-tank state sampling terminal is used for monitoring parameters inside the explosion-proof tank.
In the scheme, quantitative recording of sample parameters and environmental parameters in the test process is realized through the plurality of in-tank state sampling terminals, and comprehensive and deep analysis can be performed on characteristics such as gas production volume and gas production rate in thermal runaway.
Preferably, the interior of the explosion-proof tank is further provided with at least one battery cell sampling terminal, the battery cell sampling terminal is connected with the battery cell, and the battery cell sampling terminal is used for monitoring parameters of the battery cell.
In this scheme, through a plurality of electric core sampling terminals can comprehensively monitor various data such as voltage, temperature of electric core in the thermal runaway in-process in real time to whether the basis of thermal runaway appears as the judgement electric core, and provide required operating condition data or failure data for follow-up gas danger research analysis.
Preferably, at least one heating terminal is further arranged inside the explosion-proof tank, the heating terminal is connected with the battery core, and the heating terminal heats the battery core.
In this scheme, provide the ability of triggering electric core thermal runaway through heating terminal to through a plurality of heating terminals and select different types of heating terminal, can realize triggering mode's variety.
Preferably, the heating terminal includes a charge-discharge terminal of the battery cell, the charge-discharge terminal is electrically connected to the battery cell, and the charge-discharge terminal heats the battery cell by charging the battery cell.
In this scheme, charge and discharge terminal is the type of heating terminal, charges and discharges through charge and discharge terminal to electric core, provides the ability of the out of control of generating heat of overcharging touch.
Preferably, the heating terminal comprises a heating sheet, the heating sheet is connected with the battery core, and the heating sheet is heated and transfers heat to the battery core.
In this scheme, the heating plate is another type of heating terminal, through heating the heating plate and giving electric core with heat-conduction, provides the heating and touches the ability of generating heat out of control.
Preferably, the heating plate includes a power supply terminal, the power supply terminal is electrically connected to the heating plate and charges to heat the heating plate, and the heating plate transfers heat to the battery core.
In this scheme, through power supply terminal to heating plate charge-discharge, realized that the heating plate is heated to be favorable to adjusting the temperature state of heating plate.
Preferably, the inside of explosion-proof tank still is provided with heating plate sampling terminal, heating plate sampling terminal with the heating plate is connected, heating plate sampling terminal is used for monitoring the parameter of heating plate.
In the scheme, the state of the heating sheet is monitored in real time through the heating sheet sampling terminal, and the required working state data or failure data can be provided conveniently for follow-up gas risk research and analysis.
Preferably, the explosion-proof tank is further provided with a pressure relief opening, and the pressure relief opening is used for releasing gas in the explosion-proof tank.
In this scheme, guarantee through the pressure release mouth that the internal portion atmospheric pressure of jar surpasss jar body upper limit of bearing and carries out the pressure and release, make it have a safe test environment and gas acquisition work.
Preferably, the tank internal state sampling terminal comprises a tank internal temperature sampling terminal and a tank internal pressure sampling terminal, the tank internal temperature sampling terminal is used for monitoring the temperature in the explosion-proof tank, and the tank internal pressure sampling terminal is used for monitoring the gas pressure in the explosion-proof tank.
In this scheme, can monitor the internal real-time temperature of jar when thermal runaway test through jar internal temperature sampling terminal, can monitor the internal real-time gas pressure of jar when thermal runaway test through jar internal pressure sampling terminal.
The positive progress effects of the utility model are as follows: the gas collecting device samples and researches the thermal runaway product and the explosion danger of the battery through the gas collecting port, can purposefully control the situation in the subsequent application field, and takes effective measures in time to ensure the life and property safety of personnel; when a plurality of gas collecting ports are arranged, parallel gas component analysis sample amount can be provided, the analysis result deviation possibly existing in single sample amount is reduced, and the accuracy of the test analysis result is improved; the explosion-proof tank provides a safe test environment and effectively collects gas; the multiple ability of triggering thermal runaway has been realized through a plurality of heating terminals, has realized the real-time supervision to sample parameter and environmental parameter among the thermal runaway process through a plurality of sampling terminals, and this gas collecting device is favorable to studying battery thermal runaway's result and burning and explodes danger, has important realistic meaning.
Drawings
Fig. 1 is a schematic structural diagram of a gas collecting device according to an embodiment of the present invention.
Fig. 2 is a schematic view showing the arrangement of terminals and openings of an explosion-proof upper cover of the gas collecting apparatus according to the embodiment of the present invention.
Description of reference numerals:
an explosion-proof tank body 1, an explosion-proof upper cover 2, a gas collecting port 3a, a gas collecting port 3b, a gas collecting port 3c, a pressure relief port 4, a base 15 and a caster 16,
an in-tank temperature sampling terminal 5a, an in-tank pressure sampling terminal 5b,
a cell voltage sampling positive electrode 6a, a cell voltage sampling negative electrode 6b,
a cell temperature sampling terminal 7, a cell temperature sampling terminal 8, a cell temperature sampling terminal 9, a cell temperature sampling terminal 10, a cell temperature sampling terminal 11,
a cell charge-discharge terminal positive electrode 12a, a cell charge-discharge terminal negative electrode 12b,
a positive electrode 13a of a heater chip power supply terminal, a negative electrode 13b of the heater chip power supply terminal,
heater plate temperature sampling terminal 14.
Detailed Description
The present invention will be more clearly and completely described in the following description of preferred embodiments, taken in conjunction with the accompanying drawings.
As shown in fig. 1 and fig. 2, the present embodiment provides a gas collection device for collecting, sampling and researching gas generated by a battery cell in a battery during a thermal runaway test, the gas collection device includes an explosion-proof tank, a base 15, and 4 casters 16, the explosion-proof tank is located on the base 15 and supported by the 4 casters 16, and a mobile operation can be achieved. The explosion-proof tank comprises an explosion-proof tank main body 1 and an explosion-proof upper cover 2, wherein the explosion-proof upper cover 2 is provided with 3 gas collecting ports 3a, 3b and 3c, and the openings of the gas collecting ports penetrate through the explosion-proof upper cover 2; 3 gas collecting port 3a, 3b, 3c can be used for connecting trachea valve, metal trachea and gas collection package respectively, and the synergism each other for collect the gas that the thermal runaway test of electricity core produced. In other embodiments, the number of gas collection ports may be adjusted accordingly as required for gas research analysis.
The gas collecting device provides parallel gas component analysis sample amount through a plurality of paths of parallel gas collecting ports, reduces analysis result deviation possibly existing in single sample amount, and improves accuracy of test analysis results; the explosion-proof tank provides a safe testing environment and effectively collects gas generated by battery thermal runaway, so that the battery thermal runaway test is ensured to be in a locally limited environment, the personal safety of testers is ensured, and the pollution of the thermal runaway gas to the environment and the possible health hazard to the testers are reduced; the gas collecting device is beneficial to researching thermal runaway products and explosion danger of the battery, can control the situation purposefully in the subsequent application field, takes effective measures in time, guarantees the life and property safety of personnel, and has important practical significance.
Explosion-proof upper cover 2 still is provided with tank internal temperature sampling terminal 5a and tank internal pressure sampling terminal 5b to stretch into the inside of explosion-proof tank main part through the wire, internal real-time temperature of jar when tank internal temperature sampling terminal 5a can monitor thermal runaway test, and tank internal pressure sampling terminal 5b is the pressure sensor of high temperature resistant wide-range, can monitor the internal real-time gas pressure of jar when thermal runaway test. In other embodiments, the number and type of in-tank sampling terminals may be increased or decreased accordingly, or other different parameter types of sampling terminals may be selected, as desired for monitoring. The quantitative recording of sample parameters and environmental parameters in the testing process is realized through the plurality of in-tank state sampling terminals, and the characteristics of gas production volume, gas production rate and the like in thermal runaway can be comprehensively and deeply analyzed.
The explosion-proof upper cover 2 is also provided with 2 cell voltage sampling terminals and 5 cell temperature sampling terminals, and the corresponding openings of the terminals are used for the sampling terminals to respectively extend into the explosion-proof tank main body through wires; the 2 cell voltage sampling terminals are a cell voltage sampling anode 6a and a cell voltage sampling cathode 6b, the cell voltage sampling anode 6a and the cell voltage sampling cathode 6b are respectively connected with the cell through wires, and the 5 cell temperature sampling terminals 7, 8, 9, 10 and 11 are respectively connected with the cell through internally-led heat supply electric coupling wires; the cell voltage acquisition terminal and the cell temperature sampling terminal can conveniently monitor voltage and temperature data in a cell thermal runaway process in real time so as to be used as a basis for judging whether the cell is thermally runaway or not. In other embodiments, the number and types of the cell sampling terminals may be increased or decreased accordingly according to the monitoring requirement, or other sampling terminals of different parameter types may be selected. Various data such as voltage, temperature of the battery cell in the thermal runaway process can be comprehensively monitored in real time through the plurality of battery cell sampling terminals, so that the data can be used as a basis for judging whether the battery cell is in thermal runaway or not, and required working state data or failure data can be provided for follow-up gas danger research and analysis.
Explosion-proof upper cover 2 still is provided with 2 electric core charge and discharge terminals, its trompil that corresponds supplies each terminal to stretch into the inside of explosion-proof jar main part through the wire respectively, 2 electric core charge and discharge terminals are anodal 12a of electric core charge and discharge terminal and electric core charge and discharge terminal negative pole 12b, electric core charge and discharge terminal anodal 12a and electric core charge and discharge terminal negative pole 12b are connected with electric core electricity through the wire respectively, electric core charge and discharge terminal is the type of heating terminal, charge and discharge to electric core through electric core charge and discharge terminal, the ability of generating heat out of control is touched in the cross charge is provided.
Heating sheets (not shown in the figure) are pasted on the surface of the electric core in the anti-explosion tank main body, the anti-explosion upper cover 2 is also provided with 2 heating sheet power supply terminals, and the corresponding openings of the terminals are used for enabling the terminals to respectively extend into the anti-explosion tank main body through wires; the 2 heating plate power supply terminals are a heating plate power supply terminal anode 13a and a heating plate power supply terminal cathode 13b, the heating plate power supply terminal anode 13a and the heating plate power supply terminal cathode 13b are respectively electrically connected with the heating plate through wires and are charged to heat the heating plate, and the heating plate transfers heat to the battery core. The heating plate is another type of heating terminal, and the heating plate is heated by charging and discharging the heating plate through the heating plate power supply terminal; the heating sheet conducts heat to the battery cell, and the capability of heating and touch out of control is provided; and the heating plate power supply terminal is advantageous for adjusting the temperature state of the heating plate.
This explosion-proof tank can also provide the combination mode that overcharges and triggers with heating through the combination of electric core charge and discharge terminal and heating plate power supply terminal, perhaps selects different types of heating terminal to trigger thermal runaway, has realized the variety of trigger mode, has richened the research of the different gas that produces under various trigger forms.
The explosion-proof upper cover 2 is further provided with a heating sheet temperature sampling terminal 14, the corresponding opening hole of the heating sheet temperature sampling terminal 14 is used for enabling the heating sheet temperature sampling terminal 14 to extend into the explosion-proof tank main body through a heat supply thermocouple wire led out from the inside and be connected with the heating sheet, the heating sheet temperature sampling terminal 14 is used for conveniently monitoring the heating state of the heating sheet in real time, and the subsequent gas danger research and analysis are facilitated to provide required working state data or failure data. In other embodiments, the number of heater chip sampling terminals can be increased or decreased according to the requirements of the adopted parameters, or other heater chip sampling terminals with different parameter types can be selected.
The explosion-proof upper cover 2 is also provided with a pressure relief port 4, and pressure relief is carried out when the pressure inside the tank exceeds the upper limit of the pressure bearing of the tank through the pressure relief port 4, so that the tank is safe in test environment and gas collection.
In this embodiment, each connection terminal is insulated from the explosion-proof upper cover 2 and has good sealing.
While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the utility model is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the utility model, and these changes and modifications are within the scope of the utility model.
Claims (10)
1. The utility model provides a gas collecting device for the thermal runaway test research of electricity core, its characterized in that, gas collecting device includes explosion-proof jar, explosion-proof jar is provided with at least one gas collection mouth, gas collection mouth is used for collecting the gas that the thermal runaway test of electricity core produced.
2. The gas collection device of claim 1, wherein the explosion-proof tank is further provided with at least one in-tank condition sampling terminal for monitoring a parameter inside the explosion-proof tank.
3. The gas collection device of claim 1, wherein the explosion-proof tank is further provided with at least one cell sampling terminal inside, the cell sampling terminal is connected with the cell, and the cell sampling terminal is used for monitoring a parameter of the cell.
4. The gas collection device of claim 1, wherein the interior of the explosion-proof tank is further provided with at least one heating terminal, the heating terminal being connected to the cell, the heating terminal heating the cell.
5. The gas collection device of claim 4, wherein the heating terminal comprises a charge and discharge terminal of the cell, the charge and discharge terminal being electrically connected to the cell, the charge and discharge terminal heating the cell by charging the cell.
6. The gas collection device of claim 4, wherein the heating terminal comprises a heater chip coupled to the cell, the heater chip being heated and transferring heat to the cell.
7. The gas collection device of claim 6, wherein the heater chip includes a power terminal that is electrically connected to the heater chip and that is electrically charged to heat the heater chip, the heater chip transferring heat to the cells.
8. The gas collection device of claim 6, wherein the interior of the explosion-proof tank is further provided with a heater chip sampling terminal, the heater chip sampling terminal is connected with the heater chip, and the heater chip sampling terminal is used for monitoring parameters of the heater chip.
9. The gas collecting device as claimed in claim 1, wherein said explosion-proof tank is further provided with a pressure relief port for venting gas in said explosion-proof tank.
10. The gas collection device of claim 2, wherein the in-tank condition sampling terminal comprises an in-tank temperature sampling terminal for monitoring a temperature within the explosion proof tank and an in-tank pressure sampling terminal for monitoring a gas pressure within the explosion proof tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123073597.7U CN216670218U (en) | 2021-12-08 | 2021-12-08 | Gas collecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123073597.7U CN216670218U (en) | 2021-12-08 | 2021-12-08 | Gas collecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216670218U true CN216670218U (en) | 2022-06-03 |
Family
ID=81791991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123073597.7U Active CN216670218U (en) | 2021-12-08 | 2021-12-08 | Gas collecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216670218U (en) |
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2021
- 2021-12-08 CN CN202123073597.7U patent/CN216670218U/en active Active
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