Novel soft package lithium battery module and use method thereof

Abstract

The invention discloses a novel soft package lithium battery module and a use method thereof, and relates to the technical field of lithium batteries, the novel soft package lithium battery module comprises heat conduction pieces, a module assembly and battery core pieces, the two heat conduction pieces are symmetrically installed on the two sides of the module assembly, and the multiple battery core pieces are detachably arranged in the module assembly; a detachable soft package lithium battery is mounted in the battery core part; the heat conduction piece comprises a heat conduction shell, a heat exchange cavity for conveying heat exchange liquid is formed in the heat conduction shell along a preset path, and the heat conduction shell is in contact with the battery cell piece; the mold assembly comprises a square shell, one side of the square shell is opened to form an inner cavity, a plurality of uniformly distributed partition plates are fixedly arranged in the inner cavity, a placing cavity for placing the battery core parts is formed between every two adjacent partition plates, and the battery core parts can be pulled out from the opened side; the battery module is provided with the placing cavity with one open side for placing the battery core parts, and when a certain soft package lithium battery is damaged, the battery core parts can be disassembled and replaced only by pulling out the corresponding battery core parts, so that the maintenance difficulty of the battery module is reduced, the maintenance efficiency is improved, and the heat dissipation efficiency is improved through the heat conduction parts.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium batteries, and in particular to a novel soft-pack lithium battery module and a use method thereof. Background Art

[0002] In portable electronic devices, energy storage systems, and various application fields that require high energy density batteries, soft-pack lithium batteries have attracted much attention due to their unique advantages. Soft-pack lithium batteries use aluminum-plastic film as the shell. Compared with traditional metal shell batteries, they have higher energy density, lighter weight, and better flexibility, which makes them more flexible in design and can adapt to various shapes and sizes. However, the aluminum-plastic film shell of soft-pack batteries is relatively weak in mechanical strength and is easily affected by external impact and extrusion, resulting in damage to the internal structure of the battery, which in turn affects the performance and safety of the battery. This limits the application of soft-pack batteries in some occasions that require high mechanical strength.

[0003] In order to overcome these shortcomings of soft-pack batteries while retaining their advantages of high energy density and design flexibility, battery modularization has become a major development direction of the battery industry. Modular batteries are generally composed of battery cells and shells, and several battery cells are nested in the shell to form a battery module. Modular design can not only enhance the mechanical strength of the battery, improve the battery's impact and pressure resistance, but also improve the space utilization and overall energy density of the battery module by optimizing the battery arrangement.

[0004] However, the existing soft-pack lithium battery module has certain defects when in use. For example, a Chinese patent with announcement number "CN205752334U" discloses a soft-pack lithium battery fixing bracket, which respectively installs multiple soft-pack lithium batteries in multiple battery fixing cavities of multiple soft-pack lithium battery fixing brackets, and uses connecting columns to connect the first clamping plate, multiple soft-pack lithium battery fixing frames and the second clamping plate in sequence. Although this scheme can protect the soft-pack lithium batteries, since the device directly clamps all the soft-pack lithium batteries, after one of the soft-pack lithium batteries is damaged, it is necessary to disassemble all the soft-pack lithium batteries before replacing them, resulting in great difficulty in later maintenance and low maintenance efficiency. In addition, since the device clamps all the soft-pack lithium batteries, the heat dissipation efficiency is low, which easily causes the soft-pack lithium batteries to accumulate heat during the working process, affecting the service life of the lithium batteries.

[0005] For another example, a Chinese patent with publication number "CN 212571140U" discloses a lithium battery module, which includes a module housing and a plurality of soft-pack lithium batteries arranged inside the module housing, and the plurality of soft-pack lithium batteries are stacked in sequence; when the device installs the soft-pack lithium batteries, they are also stacked, so there is also a problem that if one of the soft-pack lithium batteries is damaged, all the soft-pack lithium batteries need to be disassembled before replacement, as well as defects such as low maintenance efficiency, low heat dissipation efficiency, and easy heat accumulation. Summary of the invention

[0006] In view of one or more deficiencies in the above-mentioned prior art, the present invention provides a novel soft-pack lithium battery module and a method of using the same, which can individually disassemble and replace damaged soft-pack lithium batteries or battery cores without disassembling all the soft-pack lithium batteries, thereby greatly reducing the difficulty of repairing the battery module, improving the repair efficiency, and improving the heat dissipation efficiency through the heat conductive member.

[0007] In order to achieve the above object, the present invention adopts the following technical solution:

[0008] A novel soft-pack lithium battery module comprises a heat-conducting member, a module assembly and a battery core member, wherein two heat-conducting members are symmetrically mounted on both sides of the module assembly, and a plurality of battery core members are detachably arranged inside the module assembly; wherein a detachable soft-pack lithium battery is mounted inside the battery core member;

[0009] The heat-conducting member comprises a heat-conducting shell, the interior of the heat-conducting shell forms a heat-exchange cavity for conveying heat-exchange liquid along a preset path, and the heat-conducting shell contacts the electric core member;

[0010] The mold assembly includes a square shell, one side of which is open to form an inner cavity, a plurality of evenly distributed partitions are fixedly provided inside the inner cavity, and a placement cavity for placing the battery core is formed between two adjacent partitions, and the battery core can be pulled out from the open side.

[0011] As a further implementation, a plurality of the battery core components are disposed between two heat-conducting components, and two sides of the battery core components are respectively in contact with the heat exchange cavities of the two heat-conducting components.

[0012] As a further implementation, a liquid inlet pipe and a liquid outlet pipe are fixedly connected to the heat-conducting shell, and the liquid inlet pipe and the liquid outlet pipe are respectively connected to the liquid inlet end and the liquid outlet end of the heat exchange cavity.

[0013] As a further implementation, the battery core component includes a battery core shell, one side of the battery core shell is open to form a mounting groove, and the soft-pack lithium battery is detachably embedded in the mounting groove.

[0014] As a further implementation, two conductive heads are fixedly provided on the outer side of one end of the battery core shell, and two electrodes are fixedly provided on the inner side of the mounting groove, and the electrodes are connected to the conductive heads for power supply.

[0015] As a further implementation, the soft-pack lithium battery is provided with two tabs at one end facing the electrode, and the tabs are in contact with the electrode.

[0016] As a further implementation, the top and the bottom of the square shell are respectively opened to form through holes, and the through holes are communicated with the inner cavity so that the heat-conducting shell can be inserted into the through holes.

[0017] As a further implementation, a side groove is formed inside one closed side of the square shell, the side groove is located on one side of the inner cavity, and the side groove is communicated with the outside to allow the conductive copper busbar to be inserted.

[0018] As a further implementation manner, the extending direction of the side groove is perpendicular to the placement cavity.

[0019] As a further implementation method, a socket is formed between the side groove and the inner cavity, a substrate is provided inside the side groove, two conductive copper bars are installed on the side of the substrate facing the socket, the battery cell shell passes through the socket and contacts the conductive copper bars for connecting multiple soft-pack lithium batteries.

[0020] As a further implementation manner, the base plate and the side groove are detachably connected.

[0021] On the other hand, a method for using a novel soft-pack lithium battery module is provided, comprising:

[0022] During installation, push the soft-pack lithium battery into the installation slot until the tabs on the soft-pack lithium battery come into contact with the electrodes inside the installation slot, completing the assembly of the battery core.

[0023] Insert several battery cores into the placement cavity on one side of the square shell one by one, connect the battery cores with the conductive copper busbar on the substrate, and complete the assembly of the battery cores and the module assembly;

[0024] When a soft-pack lithium battery is damaged, pull out the battery core corresponding to the damaged soft-pack lithium battery to separate the battery core from the conductive copper bus, take the battery core out of the placement cavity of the module assembly, and replace and install a new soft-pack lithium battery.

[0025] By adopting the above technical solution, the beneficial effects of the present invention are as follows:

[0026] 1. The mold assembly of the present invention is provided with a placement cavity with one side open, and the battery core composed of soft-pack lithium batteries is inserted into the placement cavity of the mold assembly. When a soft-pack lithium battery is damaged, it only needs to be pulled out from the open side to disassemble and replace the corresponding battery core, without the need to disassemble all the soft-pack lithium batteries, which greatly reduces the difficulty of repairing the battery module and improves the maintenance efficiency.

[0027] 2. The present invention arranges a heat-conducting member in contact with the battery core member, and the heat exchange cavity inside the heat-conducting shell transports a heat exchange liquid along a preset path, and heat is exchanged with the battery core member through the heat exchange liquid, thereby absorbing the heat generated by the battery core member when working, avoiding the battery core members from being stacked and unable to dissipate heat effectively, effectively improving the heat dissipation efficiency of the battery core member, and reducing heat accumulation during the use of the soft-pack lithium battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0029] Figure 1 It is a schematic diagram of the overall structure in an embodiment of the present invention;

[0030] Figure 2 Schematic diagram of the heat conducting structure in the embodiment of the present invention Figure 1 ;

[0031] Figure 3 Schematic diagram of the heat conducting structure in the embodiment of the present invention Figure 2 ;

[0032] Figure 4 Schematic diagram of the explosion of the heat conducting member in the embodiment of the present invention Figure 1 ;

[0033] Figure 5 Schematic diagram of the explosion of the heat conducting member in the embodiment of the present invention Figure 2 ;

[0034] Figure 6 Schematic diagram of the structure of the mold assembly in the embodiment of the present invention Figure 1 ;

[0035] Figure 7 Schematic diagram of the structure of the mold assembly in the embodiment of the present invention Figure 2 ;

[0036] Figure 8 Schematic diagram of the structure of the mold assembly in the embodiment of the present invention Figure 3 ;

[0037] Fig. 9 Schematic diagram of the structure of the battery cell in the embodiment of the present invention Figure 1 ;

[0038] Fig.10Schematic diagram of the structure of the battery cell in the embodiment of the present invention Figure 2 ;

[0039] Fig.11 Schematic diagram of the structure of the battery cell in the embodiment of the present invention Figure 3 .

[0040] In the figure: 1, heat conducting member; 11, heat conducting shell; 12, liquid inlet pipe; 13, liquid outlet pipe; 14, heat exchange chamber;

[0041] 2. mold assembly; 21. square shell; 22. through hole; 23. inner cavity; 24. partition; 25. placement cavity; 26. side groove; 27. jack; 28. substrate; 29. ​​conductive copper busbar;

[0042] 3. Battery core; 31. Battery core shell; 32. Conductive head; 33. Mounting slot; 34. Soft-pack lithium battery; 35. Electrode; 36. Tab. DETAILED DESCRIPTION

[0043] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0044] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0045] Embodiment 1

[0046] In a typical embodiment of the present application, a new soft-pack lithium battery module is provided, such as Figure 1-11 As shown, it includes a heat-conducting member 1, a mold assembly 2 and a battery core member 3, wherein two heat-conducting members 1 are symmetrically installed on both sides of the mold assembly 2, and a plurality of battery core members 3 are detachably arranged inside the mold assembly 1; wherein a detachable soft-pack lithium battery 34 is installed inside the battery core member 3;

[0047] The heat-conducting member 1 comprises a heat-conducting shell 11, the interior of the heat-conducting shell 11 forms a heat-exchange cavity 14 for conveying heat-exchange liquid along a preset path, and the heat-conducting shell 11 is in contact with the electric core 3;

[0048] The mold assembly 2 includes a square shell 21, one side of the square shell 21 is open to form an inner cavity 23, a plurality of evenly distributed partitions 24 are fixedly provided inside the inner cavity 23, and a placement cavity 25 for placing the battery core is formed between two adjacent partitions, and the battery core 3 can be pulled out from the open side.

[0049] Specifically, Figure 1 As shown, two heat-conducting parts 1 are symmetrically arranged on the upper and lower sides of the mold assembly 2 and fixedly connected to the mold assembly 2, and a plurality of electric core parts 3 are installed in parallel inside the mold assembly 2 and between the two heat-conducting parts 1. A channel for conveying heat exchange liquid, i.e., a heat exchange cavity, is formed inside the heat-conducting part 1. The upper and lower sides of each electric core part 3 are respectively in contact with a side of the heat-conducting part provided with the heat exchange cavity, and the heat exchange in the heat exchange cavity assists the electric core part in dissipating heat.

[0050] Before the device is operated, the battery core 3 composed of soft-pack lithium batteries is inserted into the interior of the mold assembly 2. When the battery core 3 is operating, a heat exchange liquid is transported in the heat exchange cavity inside the heat conductive member 1, and the heat generated by the battery core when operating is absorbed by the heat exchange liquid, thereby assisting the battery core in heat dissipation. In addition, one side of the cavity for placing the battery core in the mold assembly is an open structure. When one of the soft-pack lithium batteries or battery cores is damaged, only the corresponding damaged battery core needs to be pulled out, and the damaged battery core can be removed and replaced, which reduces the difficulty of device maintenance and improves the maintenance efficiency of the device.

[0051] Specifically, Figure 2-5 As shown, a liquid inlet pipe 12 and a liquid outlet pipe 13 are fixedly connected to one side of the heat-conducting shell 11, and the liquid inlet pipe 12 and the liquid outlet pipe 13 are respectively connected to the liquid inlet end and the liquid outlet end of the heat exchange chamber 14. The heat exchange liquid circulates in the heat exchange chamber through the liquid inlet pipe and the liquid outlet pipe to perform heat exchange, so as to assist in heat dissipation of the battery core. The arrangement of the heat exchange chamber may not be limited. In this embodiment, in order to increase the heat exchange area, the heat exchange chamber 14 is arranged in a serpentine distribution.

[0052] Specifically, Figure 9-11 As shown, the battery cell 3 includes a battery cell shell 31, one side of the battery cell shell 31 is open to form a mounting groove 33, and a soft-pack lithium battery 34 is embedded in the mounting groove 33, and the position is relatively fixed, and it can be easily removed for replacement. Two conductive heads 32 are fixed on the outside of one end of the battery cell shell 31, and two electrodes 35 are fixed on the inside of the mounting groove 33. The two conductive heads and the two electrodes are symmetrically distributed, and the two electrodes 35 are connected to the two conductive heads 32 respectively for power supply. Fig.11 As shown, in order to cooperate with the electrode 35 , the soft-pack lithium battery 34 has two tabs 36 fixedly mounted on one end facing the electrode. When the soft-pack lithium battery is installed, the tabs 36 are in contact with the electrode 35 .

[0053] Specifically, Figure 6-8As shown, the mold assembly 2 includes a square shell 21, one side of the square shell 21 is open to form an inner cavity 23, a plurality of partitions 24 arranged in parallel are fixedly installed in the inner cavity 23, and the adjacent partitions 24 are evenly spaced, and a placement cavity 25 for placing the battery core is formed between each two adjacent partitions, and a plurality of battery cores 3 are arranged one by one in the placement cavity 25. Since one side of the placement cavity is an open structure, the battery core can be pulled out from the open side. At the same time, the top and bottom of the square shell 21 are opened to form through holes 22, respectively, and the through holes 22 are connected to the inner cavity 23 for the heat-conducting shell 11 to be inserted.

[0054] In this embodiment, a side groove 26 is formed inside the closed side of the square shell. The side groove 26 is located on one side of the inner cavity 23. The side groove 26 is communicated with the outside and is used for inserting the conductive copper busbar.

[0055] like Figure 8 As shown, the extension direction of the side groove 26 is perpendicular to the placement cavity 26, and a plug hole 27 is formed between the side groove 26 and the inner cavity 23. A substrate 28 is arranged inside the side groove 26, and the substrate 28 is inserted into the side groove 26 from the outside and is detachably connected to the side groove 26. Two conductive copper bars 29 are installed on the side of the substrate 28 facing the plug hole, and the conductive head 32 on the battery cell shell passes through the plug hole 27 and contacts the conductive copper bar 29 to realize the connection of multiple soft-pack lithium batteries 34.

[0056] When using this embodiment, the battery cores 3 are inserted into the placement cavity 25 on one side of the square shell one by one, and the conductive head 32 on the battery core passes through the insertion hole 27 and enters the inside of the side groove 26 until the conductive head 32 contacts the conductive copper bus 29. When one of the soft-pack lithium batteries or battery cores is damaged, it is only necessary to pull out the corresponding battery core and move the battery core 3 along the placement cavity 25 to the outside of the square shell 21, and then the damaged battery core can be removed for inspection and maintenance without affecting the normal operation of the device, thereby reducing the difficulty of device inspection and maintenance and improving the efficiency of device inspection and maintenance.

[0057] Furthermore, when the battery cells are working, since the heat conductive component 1 is in contact with the battery cells 3, heat exchange liquid is transported along a preset path through the heat exchange cavity 14 inside the heat conductive shell 11 in the heat conductive component, and heat is exchanged with the battery cells through the heat exchange liquid to absorb the heat generated when the battery cells are working, thereby avoiding the stacking of battery cells and the inability to effectively dissipate heat, thereby improving the heat dissipation efficiency of the battery cells.

[0058] When the device is used, the soft-pack lithium battery is pushed into the installation slot 33 at one end of the battery shell until the tab 36 on the soft-pack lithium battery contacts the electrode 35 inside the installation slot, thereby completing the assembly of the battery core.

[0059] In the mold assembly, the inner cavity inside the square shell is divided by a partition 24 to form a plurality of placement cavities 25. The battery cells 3 are inserted one by one into the placement cavities 25 on one side of the square shell, so that the conductive heads 32 on the battery cells pass through the sockets and are connected to the conductive copper bus 29 on the substrate. The staff connects the equipment that needs power supply to the conductive copper bus to supply power to the electrical equipment.

[0060] When one of the soft-pack lithium batteries is damaged, it is only necessary to pull out the corresponding battery cell 3 to separate the conductive head 32 on the battery cell from the conductive copper bar 29 until the battery cell 3 is completely moved to the outside of the placement cavity 25, and then a new soft-pack lithium battery can be replaced. At the same time, the lithium battery module can work normally when the battery cell is removed, and when the battery cell is working, the heat exchange liquid is input through the liquid inlet pipe 12, and the heat exchange liquid is transported to the inside of the heat conductive shell, so that the heat exchange liquid flows along the heat exchange cavity 14, thereby performing heat exchange to assist the heat dissipation of the battery cell, and after the temperature of the heat exchange liquid rises, the heat exchange liquid is discharged through the liquid outlet pipe 13.

[0061] Embodiment 2

[0062] In another typical embodiment of the present invention, a method for using a novel soft-pack lithium battery module is provided, comprising:

[0063] During installation, push the soft-pack lithium battery into the installation slot until the tabs on the soft-pack lithium battery come into contact with the electrodes inside the installation slot, completing the assembly of the battery core.

[0064] Insert several battery cores into the placement cavity on one side of the square shell one by one, connect the battery cores with the conductive copper busbar on the substrate, and complete the assembly of the battery cores and the module assembly;

[0065] When a soft-pack lithium battery is damaged, pull out the battery core corresponding to the damaged soft-pack lithium battery to separate the battery core from the conductive copper bus, take the battery core out of the placement cavity of the module assembly, and replace and install a new soft-pack lithium battery.

[0066] Specifically, during installation, the soft-pack lithium battery is pushed into the installation slot at one end of the battery cell shell until the tabs on the soft-pack lithium battery contact the electrodes inside the installation slot, thereby completing the assembly of the battery cell.

[0067] Insert the assembled battery cells one by one into the placement cavity on one side of the square shell, so that the conductive heads on the battery cells pass through the sockets and connect to the conductive copper busbars on the substrate. The staff connects the equipment that needs power supply to the conductive copper busbars to supply power to the electrical equipment.

[0068] When one of the soft-pack lithium batteries is damaged, you only need to pull out the corresponding battery core to separate the conductive head on the battery core from the conductive copper busbar until the battery core is completely moved to the outside of the placement cavity, and then install a new soft-pack lithium battery to complete the replacement, which greatly reduces the difficulty of repairing the battery module and improves the maintenance efficiency. In addition, the lithium battery module can work normally when the battery core is removed, and when the battery core is working, the heat exchange liquid is input through the liquid inlet pipe, and the heat exchange liquid is transported to the inside of the heat conductive shell, so that the heat exchange liquid flows along the heat exchange cavity, thereby performing heat exchange to assist the heat dissipation of the battery core. After the temperature of the heat exchange liquid rises, the heat exchange liquid is discharged through the liquid outlet pipe, which effectively improves the heat dissipation efficiency of the battery core, reduces the heat accumulation during the use of the soft-pack lithium battery, and is conducive to extending the service life of the soft-pack lithium battery.

[0069] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Those skilled in the art should understand that the present invention may have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A new soft-pack lithium battery module, characterized in that: It comprises a heat-conducting member, a mold assembly and a battery core member, wherein two heat-conducting members are symmetrically installed on both sides of the mold assembly, and a plurality of battery core members are detachably arranged inside the mold assembly; wherein a detachable soft-pack lithium battery is installed inside the battery core member; The heat-conducting member comprises a heat-conducting shell, the interior of the heat-conducting shell forms a heat-exchange cavity for conveying heat-exchange liquid along a preset path, and the heat-conducting shell contacts the electric core member; The mold assembly comprises a square shell, one side of which is open to form an inner cavity, a plurality of evenly distributed partitions are fixedly arranged inside the inner cavity, and a placement cavity for placing the electric core is formed between two adjacent partitions.

2. A novel soft-pack lithium battery module as claimed in claim 1, characterized in that: The plurality of electric core components are arranged between the two heat-conducting components, and two sides of the electric core components are respectively in contact with the heat exchange cavities of the two heat-conducting components.

3. A novel soft-pack lithium battery module as claimed in claim 1, characterized in that: A liquid inlet pipe and a liquid outlet pipe are fixedly connected to the heat-conducting shell, and the liquid inlet pipe and the liquid outlet pipe are respectively communicated with the liquid inlet end and the liquid outlet end of the heat exchange cavity.

4. A novel soft-pack lithium battery module as claimed in claim 1, characterized in that: The battery core component comprises a battery core shell, one side of the battery core shell is opened to form a mounting groove, and the soft-pack lithium battery is detachably embedded in the mounting groove.

5. A novel soft-pack lithium battery module as claimed in claim 4, characterized in that: Two conductive heads are fixedly provided on the outer side of one end of the battery core shell, and two electrodes are fixedly provided on the inner side of the mounting groove, and the electrodes are connected with the conductive heads.

6. A novel soft-pack lithium battery module as claimed in claim 5, characterized in that: The soft-pack lithium battery is provided with two tabs at one end facing the electrode, and the tabs are in contact with the electrode.

7. A novel soft-pack lithium battery module as claimed in claim 1, characterized in that: The top and bottom of the square shell are respectively opened to form through holes, and the through holes are communicated with the inner cavity.

8. A novel soft-pack lithium battery module as claimed in claim 1, characterized in that: A side groove is formed inside one closed side of the square shell, the side groove is located at one side of the inner cavity, and the side groove is communicated with the outside.

9. A novel soft-pack lithium battery module as claimed in claim 8, characterized in that: The extension direction of the side groove is perpendicular to the placement cavity; a socket is formed between the side groove and the inner cavity, a substrate is arranged inside the side groove, two conductive copper bars are installed on the side of the substrate facing the socket, and the battery core shell passes through the socket and contacts the conductive copper bars.

10. A method for using the novel soft-pack lithium battery module according to any one of claims 1 to 9, characterized in that: include: During installation, push the soft-pack lithium battery into the installation slot until the tabs on the soft-pack lithium battery come into contact with the electrodes inside the installation slot, completing the assembly of the battery core. Insert several battery cores into the placement cavity on one side of the square shell one by one, connect the battery cores with the conductive copper busbar on the substrate, and complete the assembly of the battery cores and the module assembly; When a soft-pack lithium battery is damaged, pull out the battery core corresponding to the damaged soft-pack lithium battery to separate the battery core from the conductive copper bus, take the battery core out of the placement cavity of the module assembly, and replace and install a new soft-pack lithium battery.

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