CN220649815U - Battery thermal diffusion testing device - Google Patents
Battery thermal diffusion testing device Download PDFInfo
- Publication number
- CN220649815U CN220649815U CN202322316520.0U CN202322316520U CN220649815U CN 220649815 U CN220649815 U CN 220649815U CN 202322316520 U CN202322316520 U CN 202322316520U CN 220649815 U CN220649815 U CN 220649815U
- Authority
- CN
- China
- Prior art keywords
- battery
- clamping plate
- battery cell
- thermal diffusion
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 57
- 238000009792 diffusion process Methods 0.000 title claims abstract description 29
- 230000007246 mechanism Effects 0.000 claims abstract description 46
- 238000012545 processing Methods 0.000 claims description 9
- 238000013480 data collection Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 7
- 230000001960 triggered effect Effects 0.000 abstract description 3
- 210000004027 cell Anatomy 0.000 description 50
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 9
- 229910001416 lithium ion Inorganic materials 0.000 description 9
- 238000009413 insulation Methods 0.000 description 4
- 230000004308 accommodation Effects 0.000 description 2
- 239000004964 aerogel Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000012983 electrochemical energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Secondary Cells (AREA)
Abstract
The utility model relates to the technical field of battery testing, in particular to a battery thermal diffusion testing device. The battery thermal diffusion testing device comprises a charging mechanism, a data acquisition mechanism and a fixing mechanism, wherein the charging mechanism is used for charging a battery to be tested so as to trigger thermal runaway of a target battery cell, the data acquisition mechanism comprises a temperature acquisition piece, the temperature acquisition piece is annularly arranged on two side surfaces of the target battery cell and one side surface of the battery cell adjacent to the target battery cell, and the fixing mechanism is used for fixing the battery to be tested. The temperature acquisition pieces are annularly arranged on the surface of the battery cell to acquire the temperature, so that the highest surface temperature of a trigger object in the test process can be accurately detected, the temperature of the whole surface of the battery cell is monitored in real time, and the reliability of a test result is improved; the temperature of the adjacent battery cells of the thermal runaway object is also tested, and after the single battery cell is triggered to be thermally out of control by the test, the influence on the adjacent battery cells is more similar to the actual use situation.
Description
Technical Field
The utility model relates to the technical field of battery testing, in particular to a battery thermal diffusion testing device.
Background
The lithium battery is used as one of electrochemical energy storage technologies, has the advantages of high voltage, small volume, light weight, high energy, no pollution, long service life and the like, and is widely applied to the fields of medical electronics, photovoltaic energy storage, railway infrastructure, data centers, outdoor power supplies, household energy storage, military equipment and the like.
For a lithium ion battery system, the battery pack has a compact structure, the heat generated in the high-rate charge and discharge process of the battery is large, the heat is easy to accumulate and difficult to emit, the battery pack is easy to be locally overheated or the temperature is uneven, further the performance of the battery is easy to be reduced, the capacity is easy to decay, the thermal runaway accident of the battery is easy to be caused, and the life and property safety of a user is directly endangered. In the development and production process of the battery, the battery is required to be subjected to thermal runaway test for observing and evaluating the thermal diffusivity of the product, the test phenomenon is observed, the test related data is recorded for comprehensive evaluation, the product is optimized and predicted as much as possible, and the damage caused by the thermal runaway is controlled or reduced.
In the prior art, a single point position of a single battery core in a lithium ion battery system is usually tested, so that the test result is not accurate enough, and the thermal runaway condition of a similar battery unit is not tested, so that the test result has a larger difference from the actual use condition, and the test result is inaccurate.
Therefore, there is a need for a battery thermal diffusion test apparatus to solve the above problems.
Disclosure of Invention
The utility model aims to provide a battery thermal diffusion testing device which can accurately detect the highest surface temperature of a trigger object in the testing process, and the temperature of the whole battery cell surface is monitored in real time, so that the reliability of a test result is greatly improved; meanwhile, the state of the adjacent battery units can be reflected when the heat is out of control, and the battery unit is closer to the actual use situation.
In order to achieve the above object, the following technical scheme is provided:
a battery thermal diffusion test apparatus comprising:
a charging mechanism configured to charge the battery to be tested to trigger thermal runaway of the target cell;
the data acquisition mechanism comprises a temperature acquisition piece, wherein the temperature acquisition piece is annularly arranged on two sides of the target battery cell and one side of the battery cell adjacent to the target battery cell;
and the fixing mechanism is configured to fix the battery to be tested.
As a preferable scheme, the number of turns of the temperature acquisition part at the lug of the battery cell is larger than or equal to the number of turns of the temperature acquisition part at other positions of the battery cell.
As a preferable scheme, the number of turns of the temperature acquisition part at the positive electrode lug of the battery cell is larger than or equal to the number of turns of the temperature acquisition part at other positions of the battery cell.
Preferably, the temperature acquisition member is fixed with the battery cell through a connecting member.
As an optimal scheme, the data acquisition mechanism further comprises a voltage acquisition part, wherein the voltage acquisition part is used for acquiring voltage data of the battery to be detected.
Preferably, the battery thermal diffusion testing device further comprises a data processing mechanism, wherein the data processing mechanism is used for processing the data acquired by the data acquisition mechanism.
Preferably, the fixing mechanism includes:
a first clamping plate;
the first clamping plate is arranged opposite to the second clamping plate, the first clamping plate is detachably connected with the second clamping plate through the fastening piece, and the battery to be tested is arranged between the first clamping plate and the second clamping plate.
As an optimal scheme, the fixing mechanism further comprises a limiting piece, two ends of the limiting piece are respectively abutted to the first clamping plate and the second clamping plate, and the limiting piece is matched with the first clamping plate and the second clamping plate so as to limit the relative positions of the battery cell, the first clamping plate and the second clamping plate.
As the preferred scheme, the quantity of locating part is two, two locating part, first splint with the second splint jointly forms both sides open-ended accommodation space, the battery that awaits measuring is held in the accommodation space.
Preferably, heat insulation pieces are arranged on two sides of the battery cell.
Compared with the prior art, the utility model has the beneficial effects that:
the battery thermal diffusion testing device comprises a charging mechanism, a data acquisition mechanism and a fixing mechanism, wherein the charging mechanism is used for charging a battery to be tested so as to trigger thermal runaway of a target battery cell, the data acquisition mechanism comprises a temperature acquisition piece, the temperature acquisition piece is annularly arranged on two side surfaces of the target battery cell and one side surface of the battery cell adjacent to the target battery cell, and the fixing mechanism is used for fixing the battery to be tested. The temperature acquisition pieces are annularly arranged on the surface of the battery cell to acquire the temperature, so that the highest surface temperature of a trigger object in the test process can be accurately detected, and the temperature of the whole surface of the battery cell is monitored in real time, so that the reliability of a test result is greatly improved. And the lithium ion battery thermal diffusion testing device also tests the temperature of the adjacent battery cells of the thermal runaway object, can embody the safety of the whole battery, and after the single battery cell is tested to obtain the influence on the adjacent battery cells after the single battery cell is triggered to be thermally out of control, and embody the states of the adjacent battery cells, so that the lithium ion battery thermal diffusion testing device is closer to the actual use situation.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the drawings needed in the description of the embodiments of the present utility model, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the contents of the embodiments of the present utility model and these drawings without inventive effort for those skilled in the art.
Fig. 1 is a schematic structural diagram of a battery thermal diffusion testing apparatus according to an embodiment of the present utility model;
FIG. 2 is an exploded view of a battery thermal diffusion testing apparatus according to an embodiment of the present utility model;
fig. 3 is a schematic structural diagram of a battery cell and a temperature acquisition member according to an embodiment of the present utility model.
Reference numerals:
100. a battery thermal diffusion test device;
10. a fixing mechanism; 11. a first clamping plate; 12. a second clamping plate; 13. a fastener;
21. a temperature acquisition member;
30. a limiting piece;
40. a heat insulating member;
200. a battery cell; 210. a positive electrode tab; 220. and a negative electrode tab.
Detailed Description
In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other forms than those described herein and similar modifications can be made by those skilled in the art without departing from the spirit of the application, and therefore the application is not to be limited to the specific embodiments disclosed below.
In the description of the present application, it should be understood that, if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., these terms refer to the orientation or positional relationship based on the drawings, which are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, if any, 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" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the terms "plurality" and "a plurality" if any, mean at least two, such as two, three, etc., unless specifically defined otherwise.
In this application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly. For example, the two parts can be fixedly connected, detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
In this application, unless expressly stated or limited otherwise, the meaning of a first feature being "on" or "off" a second feature, and the like, is that the first and second features are either in direct contact or in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
It will be understood that if an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein, if any, are for descriptive purposes only and do not represent a unique embodiment.
For a lithium ion battery system, the battery pack has a compact structure, the heat generated in the high-rate charge and discharge process of the battery is large, the heat is easy to accumulate and difficult to emit, the battery pack is easy to be locally overheated or the temperature is uneven, further the performance of the battery is easy to be reduced, the capacity is easy to decay, the thermal runaway accident of the battery is easy to be caused, and the life and property safety of a user is directly endangered. In the development and production process of the battery, the battery is required to be subjected to thermal runaway test for observing and evaluating the thermal diffusivity of the product, the test phenomenon is observed, the test related data is recorded for comprehensive evaluation, the product is optimized and predicted as much as possible, and the damage caused by the thermal runaway is controlled or reduced.
In the prior art, a single point position of a single battery core in a lithium ion battery system is usually tested, so that the test result is not accurate enough, and the thermal runaway condition of a similar battery unit is not tested, so that the test result has a larger difference from the actual use condition, and the test result is inaccurate.
In order to solve the above-mentioned problems, as shown in fig. 1-3, the present embodiment provides a battery thermal diffusion testing device 100, where the battery thermal diffusion testing device 100 includes a charging mechanism, a data acquisition mechanism and a fixing mechanism 10, the charging mechanism is used for charging a battery to be tested to trigger thermal runaway of a target cell, the data acquisition mechanism includes a temperature acquisition member 21, the temperature acquisition member 21 is annularly disposed on two sides of the target cell and one side of the cell 200 adjacent to the target cell, and the fixing mechanism 10 is used for fixing the battery to be tested. It should be noted that, the heat generated by the thermal runaway triggering object during thermal runaway should be most easily transferred to the adjacent lithium ion battery cells, so the cell 200 closest to the center in the lithium ion battery system is selected as the target cell for thermal runaway triggering. The battery to be tested includes a plurality of battery cells 200 to be tested. Wherein the temperature pickup 21 may be a thermocouple.
The temperature acquisition pieces 21 are annularly arranged on the surface of the battery cell 200 to acquire the temperature, so that the highest surface temperature of a trigger object in the test process can be accurately detected, and the temperature of the surface of the whole battery cell 200 is monitored in real time, so that the reliability of the test result is greatly improved. And the lithium ion battery thermal diffusion testing device 100 also tests the temperature of the adjacent battery cells of the thermal runaway object, so that the safety of the whole battery can be represented, and after the single battery cell 200 is tested and triggered to be in thermal runaway, the influence on the adjacent battery cells is reflected, namely, the state of the adjacent battery cells is represented, and the device is closer to the actual use situation.
Further, the temperature acquisition member 21 is fixed to the battery cell 200 by a connecting member. Wherein, the connecting piece can be a high-temperature adhesive tape or a high-temperature-resistant Wen Kouge piece.
Since the current density at the tab is relatively high, the high temperature region is mainly concentrated at the position close to the tab, and the position close to the positive electrode tab 210 is usually higher than the temperature at the position close to the negative electrode tab 220, so that the number of turns of the temperature acquisition member 21 at the tab of the battery cell 200 is greater than or equal to the number of turns of the temperature acquisition member 21 at other positions of the battery cell 200. Preferably, the number of turns of the temperature acquisition member 21 at the positive electrode tab 210 of the battery cell 200 is greater than or equal to the number of turns of the temperature acquisition member 21 at other positions of the battery cell 200.
Further, the data acquisition mechanism further comprises a voltage acquisition part, and the voltage acquisition part is used for acquiring voltage data of the battery to be detected. The voltage acquisition part comprises an anode voltage acquisition part and a cathode voltage acquisition part. The voltage acquisition member can be a voltmeter or a voltage detector.
The battery thermal diffusion test apparatus 100 further comprises a data processing mechanism. It should be noted that, the data acquisition mechanism is electrically connected with the data processing mechanism, and is configured to acquire temperature data and voltage data of the to-be-measured battery cell 200 and transmit the temperature data and the voltage data to the data processing mechanism, where the data processing mechanism is configured to determine a temperature change and a voltage change of the to-be-measured battery cell 200 according to the temperature data and the voltage data acquired by the data acquisition mechanism.
The structure of the fixing mechanism 10 will be described with reference to fig. 1 and 2, and as shown in fig. 1 and 2, the fixing mechanism 10 includes a first clamping plate 11, a second clamping plate 12, and a fastening member 13, the first clamping plate 11 and the second clamping plate 12 are disposed opposite to each other, and the battery to be measured is disposed between the first clamping plate 11 and the second clamping plate 12 through the detachable connection of the fastening member 13. The first clamping plate 11 and the second clamping plate 12 are used for clamping the battery to be tested. The fastener 13 is a screw and nut structure, and the screw sequentially passes through the first clamping plate 11 and the second clamping plate 12 and then is in threaded connection with the nut, so that the first clamping plate 11 and the second clamping plate 12 can be conveniently and quickly disassembled. In other embodiments, the fastener 13 may also be a pin or a movable catch, etc.
Further, as shown in fig. 1 and 2, the fixing mechanism 10 further includes a limiting member 30, two ends of the limiting member 30 are respectively abutted against the first clamping plate 11 and the second clamping plate 12, and the limiting member 30 is matched with the first clamping plate 11 and the second clamping plate 12 to limit the relative positions of the battery cell 200 and the first clamping plate 11 and the second clamping plate 12, so as to prevent the battery to be tested from shifting in the testing process.
Further, as shown in fig. 2, the number of the limiting members 30 is two, the two limiting members 30, the first clamping plate 11 and the second clamping plate 12 together form a containing space with two open sides, the battery to be tested is contained in the containing space, and the positive electrode tab 210 and the negative electrode tab 220 of the battery cell 200 are respectively arranged at the openings on the two sides, so that the limiting members 30 are prevented from obstructing the temperature and voltage testing.
Optionally, the thermal insulation 40 is provided on both sides of the cell 200. Specifically, the heat insulating member 40 is aerogel, and the aerogel is filled between the cells 200 and 200, so that the heat insulating member has the functions of insulation, heat insulation and flame retardance.
Note that in the description of this specification, a description referring to terms "some embodiments", "other embodiments", and the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing description is only of the preferred embodiments of the utility model and the technical principles employed. It will be understood by those skilled in the art that the present utility model is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, while the utility model has been described in connection with the above embodiments, the utility model is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the utility model, which is set forth in the following claims.
Claims (10)
1. The battery thermal diffusion testing arrangement, characterized in that includes:
a charging mechanism configured to charge the battery to be tested to trigger thermal runaway of the target cell;
the data acquisition mechanism comprises a temperature acquisition piece (21), wherein the temperature acquisition piece (21) is annularly arranged on two side surfaces of the target battery cell and one side surface of the battery cell (200) adjacent to the target battery cell;
and a fixing mechanism (10) configured to fix the battery to be tested.
2. The battery thermal diffusion testing apparatus according to claim 1, wherein the number of turns of the temperature acquisition member (21) provided at the tab of the battery cell (200) is greater than or equal to the number of turns of the temperature acquisition member (21) at other positions of the battery cell (200).
3. The battery thermal diffusion testing apparatus according to claim 1, wherein the number of turns of the temperature acquisition member (21) set at the positive electrode tab (210) of the battery cell (200) is greater than or equal to the number of turns of the temperature acquisition member (21) at other positions of the battery cell (200).
4. The battery thermal diffusion test apparatus according to claim 1, wherein the temperature acquisition member (21) is fixed to the battery cell (200) by a connecting member.
5. The battery thermal diffusion testing apparatus of claim 1, wherein the data acquisition mechanism further comprises a voltage acquisition member for acquiring voltage data of the battery under test.
6. The battery thermal diffusion testing apparatus of claim 1, further comprising a data processing mechanism for processing data collected by the data collection mechanism.
7. The battery thermal diffusion test apparatus according to any one of claims 1 to 6, wherein the fixing mechanism (10) includes:
a first clamping plate (11);
the battery to be tested is arranged between the first clamping plate (11) and the second clamping plate (12).
8. The battery thermal diffusion testing apparatus according to claim 7, wherein the fixing mechanism (10) further comprises a limiting member (30), two ends of the limiting member (30) are respectively abutted against the first clamping plate (11) and the second clamping plate (12), and the limiting member (30) is matched with the first clamping plate (11) and the second clamping plate (12) so as to limit the relative positions of the battery cell (200) and the first clamping plate (11) and the second clamping plate (12).
9. The battery thermal diffusion testing apparatus according to claim 8, wherein the number of the limiting members (30) is two, the two limiting members (30), the first clamping plate (11) and the second clamping plate (12) together form a receiving space with two open sides, and the battery to be tested is received in the receiving space.
10. The battery thermal diffusion test apparatus according to any one of claims 1 to 6, wherein heat insulating members (40) are provided on both sides of the battery cell (200).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322316520.0U CN220649815U (en) | 2023-08-28 | 2023-08-28 | Battery thermal diffusion testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322316520.0U CN220649815U (en) | 2023-08-28 | 2023-08-28 | Battery thermal diffusion testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220649815U true CN220649815U (en) | 2024-03-22 |
Family
ID=90268679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322316520.0U Active CN220649815U (en) | 2023-08-28 | 2023-08-28 | Battery thermal diffusion testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220649815U (en) |
-
2023
- 2023-08-28 CN CN202322316520.0U patent/CN220649815U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Xu et al. | Internal temperature detection of thermal runaway in lithium-ion cells tested by extended-volume accelerating rate calorimetry | |
| US10809133B2 (en) | Measurement set-up for controlling the function of rechargeable batteries | |
| Chen et al. | Effects of thermal hazard on 18650 lithium-ion battery under different states of charge | |
| US9880207B2 (en) | Precise detector of charge current for charge-discharge device | |
| US10746711B2 (en) | Method of measuring quantity of moisture in electrode, method of manufacturing electrode for lithium-ion secondary battery, moisture quantity measuring apparatus, and method of measuring moisture quantity | |
| Li et al. | A smart Li-ion battery with self-sensing capabilities for enhanced life and safety | |
| JPWO2015093103A1 (en) | Storage device stability evaluation test apparatus and stability evaluation test method | |
| CN110988700B (en) | Forklift lithium ion battery module health degree evaluation method | |
| Rizk et al. | Experimental analysis on Li-ion battery local heat distribution | |
| CN102830358B (en) | Thermoelectric parameter testing device of battery | |
| Mohsin et al. | Heat generation and degradation mechanisms studied on Na3V2 (PO4) 3/C positive electrode material in full pouch/coin cell assembly | |
| CN220649815U (en) | Battery thermal diffusion testing device | |
| CN215952429U (en) | Device for testing thicknesses of battery cores of power lithium batteries with different constraint forces | |
| CN109188286A (en) | A kind of determination method and device of battery system temperature difference influence factor | |
| Jia et al. | The early warning for thermal runaway of lithium-ion batteries based on internal and external temperature model | |
| Lidbeck et al. | Experimental characterization of li-ion battery cells for thermal management in heavy duty hybrid applications | |
| Simunovic et al. | Laser scanning method for high-resolution thickness mapping of lithium-ion pouch cells | |
| CN213422155U (en) | Lithium battery expansion amount measuring device | |
| CN113465773A (en) | Method for measuring and calculating internal temperature of lithium ion battery | |
| Kumar et al. | Numerical and Experimental Investigation of Thermal Behaviour for Fast Charging and Discharging of Various 18650 Lithium Batteries of Electric Vehicles. | |
| Ziat et al. | Impact of the battery SOC range on the battery heat generation and maximum temperature rise | |
| CN209327254U (en) | The detection device of battery core thermal coefficient | |
| CN111929582A (en) | Tool for lithium battery thermal runaway and testing method | |
| Mörtel et al. | Smart Cells-Battery monitoring via internal sensors | |
| CN213302531U (en) | Lithium battery performance testing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |