Battery collision test equipment, method, device and equipment and storage medium

Abstract

The invention discloses battery collision test equipment, method, device and equipment and a storage medium, and relates to the field of battery testing, and the battery collision test equipment comprises a trolley, a horizontal runway, a motor dragging system and a test table board; the test table top is used for horizontally placing a battery in a first direction, and the first direction is the driving direction of a vehicle when the battery is mounted on the vehicle; the horizontal runway is used for placing the trolley in a second direction, and the second direction is perpendicular to the first direction; and the motor dragging system is used for dragging the trolley to horizontally impact the vehicle in a second direction.

Description

Technical Field

[0001] The present application relates to the field of battery testing, and in particular to a battery collision testing device, method, apparatus, device and storage medium. Background Art

[0002] With the rapid development of new energy, the demand for batteries in energy storage, automobiles and other fields is becoming increasingly urgent. In order to meet the relevant R&D and testing needs, it is necessary to develop corresponding test systems.

[0003] The existing testing solutions for new energy vehicle collision scenarios are relatively simple. For example, the common testing method of a trolley hitting a fixed obstacle model from the front cannot simulate the actual side collision scenario of a new energy vehicle. Summary of the invention

[0004] The purpose of the present application is to provide a battery collision test device, method, apparatus, device and storage medium.

[0005] To achieve the above objectives, this application provides the following solutions: In a first aspect, the present application provides a battery collision test device, the battery collision test device comprising: a trolley, a horizontal runway, a motor dragging system, and a test table; The test bench is used to place the battery horizontally in a first direction, where the first direction is the driving direction of the vehicle when the battery is installed on the vehicle; The horizontal runway is used to place the trolley in a second direction, and the second direction is perpendicular to the first direction; The motor traction system is used to pull the trolley to horizontally impact the vehicle in a second direction.

[0006] Optionally, the motor towing system includes: a motor and a towing rope; the towing rope is connected to the trolley; and the motor is used to tow the trolley on the horizontal runway by towing the towing rope.

[0007] Optionally, the motor towing system further comprises: a traction blocking device, which is disposed on the horizontal runway and is used to block the trolley from moving on the horizontal runway when the motor is not started, and to withdraw from the horizontal runway when the motor is started.

[0008] Optionally, a speed sensor is provided on the horizontal runway for monitoring the acceleration of the trolley running on the horizontal runway.

[0009] Optionally, a rigid wall is provided on one side of the test platform opposite to the horizontal runway.

[0010] Optionally, the battery is suspended and fixed on the rigid wall.

[0011] Optionally, a water pool is provided under the test table.

[0012] Optionally, the test platform has a lifting mechanism for lowering the test platform into the water pool.

[0013] Optionally, an impact head is provided on the trolley, the impact head is a semi-cylinder, and the length of the impact head is greater than the height of the battery.

[0014] In a second aspect, the present application provides a battery collision test method, comprising: Select the collision contact point on the side of the battery; Using the battery collision test equipment as described above to perform a battery collision test according to the collision contact points to obtain a damaged battery sample; After the damaged battery sample is left to stand for a set period of time at the test environment temperature, the state of the internal minimum monitoring unit of the damaged battery sample is obtained.

[0015] In a third aspect, the present application provides a battery collision test device, the battery collision test device comprising: A configuration module for selecting collision contact points on the side of the battery; A testing module, used to perform a battery collision test according to the collision contact points using the battery collision testing device described in any one of the above, to obtain a damaged battery sample; The acquisition module is used to obtain the state of the internal minimum monitoring unit of the damaged battery sample after the damaged battery sample is left to stand for a set time at the test environment temperature.

[0016] In a fourth aspect, the present application provides a computer device, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of any one of the battery collision test methods described above.

[0017] In a fifth aspect, the present application provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of any one of the battery collision test methods described above.

[0018] In a sixth aspect, the present application provides a computer program product, including a computer program, which, when executed by a processor, implements the steps of any one of the battery collision test methods described above.

[0019] According to the specific embodiments provided in this application, this application discloses the following technical effects: The present application provides a battery collision test device, method, apparatus, equipment and storage medium, which realizes a simulation of a vehicle battery being subjected to a collision scenario from the side direction of the vehicle during driving by arranging the first direction of placement of the battery on the test bench horizontally and vertically with the second direction of movement of the trolley on the horizontal runway. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A schematic diagram of the structure of a battery collision test device provided in one embodiment of the present application; Figure 2 A schematic diagram of the effect of a battery collision test device provided in one embodiment of the present application; Figure 3 A schematic diagram of a flow chart of a battery collision test method provided in one embodiment of the present application; Figure 4 A schematic diagram of functional modules of a battery collision test device provided in one embodiment of the present application; Figure 5 A schematic diagram of the structure of a computer device provided in one embodiment of the present application. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0023] like Figure 1 As shown, some embodiments of the present application provide a battery collision test device. In the embodiments of the present application, the battery collision test device includes: a trolley 1, a horizontal runway 2, a motor dragging system 3, and a test table 4; The test bench 4 is used to place the battery horizontally in a first direction, where the first direction is the driving direction of the vehicle when the battery is installed on the vehicle; The horizontal runway 2 is used to place the trolley 1 in a second direction, and the second direction is perpendicular to the first direction; The motor traction system 3 is used to pull the trolley 1 to horizontally impact the vehicle in a second direction.

[0024] In an embodiment of the present application, the main body of the trolley 1 can imitate the rigid body structure of a vehicle, in which a pulley component is provided, so that the trolley 1 can move on the horizontal runway 2 through the pulley component. In order to ensure the motion trajectory of the trolley 1 on the horizontal runway 2, a guide track can be provided on the horizontal runway 2, so that the pulley of the trolley 1 can be set in the guide track so that the trolley 1 can move along the guide track in a predetermined second direction to hit the battery on the test bench 4. A fixing component can be provided on the test bench 4 to fix the battery in the first direction. The motor drag system 3 is connected to the controller 34, and the user can send a drive signal to the motor 31 through the controller 34, so that the motor 31 drives the trolley 1 to move at a specific speed on the horizontal runway 2 toward the battery on the test bench 4 to achieve a collision test.

[0025] It is worth noting that the first direction in which the battery is set on the table refers to the horizontal direction that is the same as the driving direction of the vehicle when the battery is installed on the vehicle, and the second direction is the direction perpendicular to the first direction on the horizontal plane. Since the horizontal runway 2 is set along the second direction, the trolley 1 can also move in the second direction along the horizontal runway 2, thereby simulating the collision scenario of the battery in the vehicle from the side direction of the vehicle during the driving process.

[0026] The embodiment of the present application realizes a simulation of a vehicle battery being hit from the side of the vehicle while the vehicle is driving by arranging the first direction of placement of the battery on the test bench 4 horizontally and vertically with the second direction of movement of the trolley 1 on the horizontal runway 2.

[0027] Optionally, the motor towing system 3 includes: a motor 31 and a towing rope 32 ; the towing rope 32 is connected to the trolley 1 ; and the motor 31 is used for towing the trolley 1 on the horizontal runway 2 by towing the towing rope 32 .

[0028] In an embodiment of the present application, after the user sets the acceleration through the controller 34, the controller 34 sends a corresponding control signal to the motor 31, so that the motor 31 rotates to pull the traction rope 32 along the horizontal runway 2 toward the test platform 4. At this time, the traction rope 32 will drag the trolley 1 on the horizontal runway 2 toward the test platform 4 according to the pre-set acceleration.

[0029] Optionally, the motor traction system 3 further includes: a traction blocking device 33, which is arranged on the horizontal runway 2 and is used to block the trolley 1 from moving on the horizontal runway 2 when the motor 31 is not started, and to withdraw from the horizontal runway 2 when the motor 31 is started.

[0030] In the embodiment of the present application, the traction blocking device 33 can be set in the guide track of the horizontal runway 2. When the motor 31 is not moving, the traction blocking device 33 is blocked in the guide track, so that the pulley of the trolley 1 will be blocked by the traction blocking device 33 when it reaches the traction blocking device 33 and cannot continue to move forward. The traction blocking device 33 can be connected to the traction rope 32. When the motor 31 drives the traction rope to move, the traction rope 32 can pull the traction blocking device 33 under the horizontal runway 2, so that the traction blocking device 33 moves out of the guide track. At this time, the trolley 1 will no longer be blocked by the traction blocking device 33 when passing through the traction blocking device 33. In this way, the movement speed of the trolley 1 on the horizontal runway 2 can be effectively controlled.

[0031] Optionally, a speed sensor 35 is provided on the horizontal runway 2 for monitoring the acceleration of the trolley 1 running on the horizontal runway 2 .

[0032] In an embodiment of the present application, a speed sensor 35 may be provided on the side of the horizontal runway 2 to monitor the speed and acceleration of the trolley 1 moving on the horizontal runway 2. Of course, a speed sensor 35 may also be provided on the battery to accurately monitor the speed and acceleration of the trolley 1 when the trolley 1 collides with the battery.

[0033] Optionally, a rigid wall 41 is provided on one side of the test platform 4 opposite to the horizontal runway 2 .

[0034] In the embodiment of the present application, a high-strength rigid wall 41 may be provided on the test bench 4 on the opposite side to the horizontal runway 2, so as to block the splashed battery debris when a battery collision occurs and avoid the safety risks caused by the collision.

[0035] Optionally, the battery is suspended and fixed on the rigid wall 41 .

[0036] In the embodiment of the present application, the battery can also be fixed on the test bench 4 in a fixed manner, specifically, the battery is suspended and fixed on the rigid wall 41, so as to ensure that the battery remains fixed during the collision.

[0037] Optionally, a water pool 42 is provided under the test table 4 .

[0038] In the embodiment of the present application, the water pool 42 under the test bench 4 can effectively control the fire caused by the collision of the battery.

[0039] Optionally, the test platform 4 has a lifting mechanism for lowering the test platform 4 into the water pool 42 .

[0040] In the embodiment of the present application, the lifting mechanism of the test bench 4 can lower the test bench 4 into the water pool 42 after the battery collides and catches fire, so as to extinguish the catching battery on the test bench through the liquid in the water pool 42, thereby avoiding the risk of fire caused by the collision test.

[0041] Optionally, the trolley 1 is provided with an impact head, which is a semi-cylinder, and the length of the impact head is greater than the height of the battery.

[0042] In the embodiment of the present application, the collision head 11 is in the form of a semi-cylinder with a radius of 130 mm or other dimensions. For example, the length of the semi-cylinder should be greater than the height of the test object. It is made of #45 steel material and placed vertically.

[0043] like Figure 3 As shown, some embodiments of the present application provide a battery collision test method. In the embodiment of the present application, the battery collision test method includes: Step 101, selecting a collision contact point on the side of the battery; Step 102, using the battery collision test equipment provided in some embodiments of the present application to perform a battery collision test according to the collision contact points to obtain a damaged battery sample; Step 103, after the damaged battery sample is left to stand for a set period of time at the test environment temperature, the state of the internal minimum monitoring unit of the damaged battery sample is obtained.

[0044] In the embodiment of the present application, the collision contact point should be arranged according to the battery pack system structure, and the target position point with the greatest risk should be selected on the shell as the dynamic collision contact point. Before the test starts, the SOC state of the battery pack or system is adjusted to not less than 100% / or other of the normal SOC operating range specified by the manufacturer. The specific test process can refer to the description in the above embodiment and will not be repeated here. After the collision test is completed, the damaged battery sample will be observed for 2 hours at the test environment temperature. The water cooling system (if any) before and after the battery pack or system test should be tested for airtightness. The battery pack or system should be tested for residual torque at the main fixed points after the test. During the test, monitor the status of the minimum monitoring unit inside the test sample, such as voltage and temperature.

[0045] Specifically, structural deformation is one of the important indicators for evaluating the safety performance of batteries in collisions. By conducting a detailed analysis of the structural deformation of the battery after a collision, we can understand the force and pressure distribution of the battery in a collision, and then evaluate its safety performance. This includes observing the types of deformation such as dents and twists of the battery casing, and evaluating the potential impact of these deformations on the internal components of the battery.

[0046] Acceleration response is a key parameter for evaluating the dynamic performance of batteries in collisions. By placing acceleration sensors at key locations of the battery, the acceleration changes of the battery during a collision can be measured in real time. By analyzing the acceleration data, we can understand the acceleration impact on the battery during a collision and evaluate its potential impact on the internal structure and performance of the battery. This includes observing parameters such as instantaneous changes in acceleration, peak acceleration, and acceleration change rate.

[0047] Based on the analysis results of structural deformation and acceleration response, the safety performance of the battery in a side collision can be comprehensively evaluated. This includes evaluating whether the battery has short circuits, fires, and other dangerous situations in the collision, and whether the performance and life of the battery after the collision are affected. By comparing the evaluation results under different test conditions, the design and manufacturing process of the battery can be further optimized to improve its safety performance.

[0048] Based on the state of the minimum monitoring unit of the damaged battery sample, various indicator data related to the battery collision evaluation can be calculated, including but not limited to the following indicators: Lifting ear stress: Evaluate the stress on the lifting ear of the battery pack during a collision; Box intrusion: measures the degree of deformation of the battery pack box in a collision; Box plastic strain: evaluates the plastic deformation of the battery pack box during a collision; Fastening screw stress: Analyze the stress on the battery pack fastening screws during a collision; Module acceleration: Measures the acceleration change of the battery module during a collision to reflect the intensity and direction of the collision force; Module deformation: observe the deformation of the battery module after the collision to evaluate its structural integrity; Maximum stress: the maximum stress value that the battery withstands during a collision; Maximum deformation: the maximum deformation of the battery during a collision; Maximum axial compression ratio (MCR): used to evaluate the degree of damage to the battery under bottom impact; Acceleration rate of change: reflects the rate of change of battery acceleration during a collision. A larger acceleration rate of change may mean that the structure has been severely impacted.

[0049] Of course, the above is only an exemplary description, and the specific indicator data can be set according to actual needs and is not limited here.

[0050] The calculation of the above evaluation indicators is usually carried out by combining numerical simulation and emulation with experimental measurement and verification: First, a numerical model of battery collision is established, accurate material properties, boundary conditions and other parameters are set, and numerical simulation software is used to perform calculations to obtain the battery's stress, strain, acceleration and other response data during the collision.

[0051] Then, the actual response data of the battery during the collision is measured through experimental means and compared with the numerical simulation results to ensure the accuracy and reliability of the evaluation indicators.

[0052] It should be noted that the specific evaluation indicators and their calculation methods may vary depending on factors such as battery type, collision conditions, etc. In practical applications, appropriate evaluation indicators and calculation methods should be selected for evaluation based on specific circumstances.

[0053] In addition, in order to more comprehensively evaluate the collision performance of the battery, other performance indicators such as the battery's energy density, cycle life, and safety can also be considered comprehensively.

[0054] Among them, the combustion phenomenon of lithium-ion batteries after thermal runaway has its own particularity. It has three types of fire characteristics: Class A (solid material fire), Class B (liquid or fusible solid material fire) and Class C (gas fire), among which Class C gas fire characteristics are the main ones. The combustible gas decomposed after the thermal runaway of the lithium-ion battery mixes with the air to form an explosive mixed gas. When it encounters the high-temperature particles ejected by the lithium battery, it may deflagrate, resulting in the initial explosion sound. In addition, lithium-ion battery fires also show characteristics such as high temperature and difficulty in extinguishing. The fire level assessment during battery testing is usually based on specific standards, such as the UL94 standard, which divides the fire protection level of the battery into four levels: UL94-V0, UL94-V1, UL94-V2 and UL94-HB. Among them, UL94-V0 is the highest level, indicating that the battery will not burn or burn for no more than 10 seconds during the flame test, and will not drip combustion residues; while UL94-HB is the lowest level, indicating that the battery will burn during the flame test, but the burning time will not exceed 30 seconds.

[0055] The fire level assessment during battery testing is mainly carried out through flame testing. The following are some common assessment methods: Vertical combustion test: Place the battery sample vertically, use a standard flame to burn it, observe and record the sample's burning time, flame spread, whether there are burning drippings, and whether the drippings ignite the cotton pad below, etc. Horizontal combustion test: Place the battery sample horizontally, use a standard flame to burn it, observe and record the sample's burning speed, flame spread distance, etc. Heat release rate test: Use specific equipment to measure the rate at which the battery releases heat during combustion to assess its fire hazard. The larger the heat release rate peak, the more heat the battery releases during combustion and the higher the fire hazard.

[0056] Furthermore, the air tightness of the battery can be evaluated by comparing the air tightness of the battery before and after the collision test. The air tightness test can be to connect the battery pack to the air tightness tester to ensure that the connection is well sealed. A certain pressure of gas (such as compressed air or helium) is filled into the battery pack through the air tightness tester. Close the inflation valve and start monitoring the air pressure changes inside the battery pack. Use the high-sensitivity pressure sensor or helium detector inside the instrument to detect slight changes in air pressure or helium leaks. Evaluate the air tightness of the battery pack based on the monitored air pressure changes or helium leaks. If the air pressure drops rapidly or an obvious helium leak is detected, it indicates that there is a problem with the air tightness of the battery pack.

[0057] The embodiment of the present application realizes a simulation of a vehicle battery being hit from the side of the vehicle while the vehicle is driving by arranging the first direction of placement of the battery on the test bench horizontally and vertically with the second direction of movement of the trolley on the horizontal runway.

[0058] Based on the same inventive concept, the embodiment of the present application also provides a battery collision test device for implementing the battery collision test method involved above. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the above method, so the specific limitations in one or more battery collision test device embodiments provided below can refer to the limitations of the battery collision test method above, and will not be repeated here.

[0059] In an exemplary embodiment, Figure 4 As shown, a battery collision test device 20 is provided, comprising: Configuration module 201, used for selecting collision contact points on the side of the battery; A testing module 202, configured to use the battery collision testing device described in any one of the above to perform a battery collision test according to the collision contact points to obtain a damaged battery sample; The acquisition module 203 is used to acquire the state of the internal minimum monitoring unit of the damaged battery sample after the damaged battery sample is left to stand for a set period of time at the test environment temperature.

[0060] The embodiment of the present application realizes a simulation of a vehicle battery being hit from the side of the vehicle while the vehicle is driving by arranging the first direction of placement of the battery on the test bench horizontally and vertically with the second direction of movement of the trolley on the horizontal runway.

[0061] In an exemplary embodiment, a computer device is provided. The computer device may be a server or a terminal. The internal structure diagram thereof may be as follows: Figure 5As shown. The computer device includes a processor, a memory, an input / output interface (Input / Output, referred to as I / O) and a communication interface. Among them, the processor, the memory and the input / output interface are connected through a system bus, and the communication interface is connected to the system bus through the input / output interface. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The database of the computer device is used to store information interaction data. The input / output interface of the computer device is used to exchange information between the processor and an external device. The communication interface of the computer device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, a battery collision test method is implemented.

[0062] Those skilled in the art will understand that Figure 5 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0063] In an exemplary embodiment, a computer device is further provided, including a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the steps in the above-mentioned method embodiments when executing the computer program.

[0064] In an exemplary embodiment, a computer-readable storage medium is provided, storing a computer program, and when the computer program is executed by a processor, the steps in the above method embodiments are implemented.

[0065] In an exemplary embodiment, a computer program product is provided, including a computer program, and when the computer program is executed by a processor, the steps in the above method embodiments are implemented.

[0066] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant regulations.

[0067] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM may be in various forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM).

[0068] The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. The non-relational database may include a distributed database based on blockchain, etc., but is not limited thereto. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., but is not limited thereto.

[0069] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0070] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and core ideas of this application. At the same time, for those skilled in the art, according to the ideas of this application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting this application.

Claims

1. A battery collision test device, characterized in that: The battery collision test equipment includes: a trolley, a horizontal runway, a motor drag system, and a test table; The test bench is used to place the battery horizontally in a first direction, where the first direction is the driving direction of the vehicle when the battery is installed on the vehicle; The horizontal runway is used to place the trolley in a second direction, and the second direction is perpendicular to the first direction; The motor dragging system is used to pull the trolley to horizontally impact the vehicle in a second direction; Wherein, the motor dragging system comprises: a motor and a traction rope; the traction rope is connected to the trolley; the motor is used to drag the trolley on the horizontal runway by pulling the traction rope; The motor towing system further comprises: a traction blocking device, which is arranged on the horizontal runway and is used to block the trolley from moving on the horizontal runway when the motor is not started, and to withdraw from the horizontal runway when the motor is started.

2. The battery collision test equipment according to claim 1, characterized in that: A speed sensor is provided on the horizontal runway for monitoring the acceleration of the trolley running on the horizontal runway.

3. The battery collision test equipment according to claim 1, characterized in that: A rigid wall is arranged on one side of the test platform facing the horizontal runway.

4. The battery collision test equipment according to claim 1, characterized in that: The battery is suspended and fixed on a rigid wall.

5. The battery collision test equipment according to claim 1, characterized in that: A water pool is arranged under the test table.

6. The battery collision test equipment according to claim 5, characterized in that: The test platform has a lifting mechanism for lowering the test platform into the water pool.

7. The battery collision test equipment according to claim 1, characterized in that: The trolley is provided with an impact head, which is a semi-cylinder, and the length of the impact head is greater than the height of the battery.

8. A battery collision test method, characterized in that: The battery collision test method comprises: Select the collision contact point on the side of the battery; Using the battery collision test equipment as described in any one of claims 1 to 7 to perform a battery collision test according to the collision contact points to obtain a damaged battery sample; After the damaged battery sample is left to stand for a set period of time at the test environment temperature, the state of the internal minimum monitoring unit of the damaged battery sample is obtained.

9. A battery collision test device, characterized in that: The battery collision testing device comprises: A configuration module for selecting collision contact points on the side of the battery; A testing module, used to perform a battery collision test according to the collision contact points using the battery collision testing device according to any one of claims 1 to 7 to obtain a damaged battery sample; The acquisition module is used to obtain the state of the internal minimum monitoring unit of the damaged battery sample after the damaged battery sample is left to stand for a set time at the test environment temperature.

10. A computer device comprising: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of the battery collision test method of claim 8.

11. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the battery collision test method of claim 8 are implemented.

12. A computer program product, comprising a computer program, wherein when the computer program is executed by a processor, the steps of the battery collision test method of claim 8 are implemented.

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