Repair method and repair device for battery string replacement piece

Abstract

The invention discloses a battery string replacement piece repair method and a repair device, a battery string comprises a plurality of battery pieces and a solder strip group arranged on the plurality of battery pieces, the solder strip group connects the plurality of battery pieces, the battery piece needing to be repaired in the battery string is defined as a first battery piece, and the battery piece needing to be repaired in the battery string is defined as a second battery piece; and defining the battery pieces on the two sides of the first battery piece along the preset direction as second battery pieces, and defining the battery piece for replacement as a replacement battery piece. The repair method comprises the following steps: disconnecting a welding strip between the first battery piece and the two second battery pieces; moving the replacement battery piece to a position between the two second battery pieces; the welding strip on one side of the replacement battery piece is connected with the welding strip on one second battery piece through a first connecting piece, the welding strip on the other side of the replacement battery piece is connected with the welding strip on the other second battery piece through a second connecting piece, and the first connecting piece and the second connecting piece are both conductive. Through the arrangement, the repair efficiency of the battery string can be improved.

Description

Technical Field

[0001] This application relates to the field of photovoltaic production technology, and in particular to a method and apparatus for repairing battery replacement cells. Background Technology

[0002] A photovoltaic (PV) cell string is a unit of power generation that connects multiple PV cells in series to form a higher voltage PV power generation unit. It is the core component of a PV system.

[0003] When a problem occurs with the cells in a battery string, causing the string to malfunction, it needs to be repaired. Since the cells are typically welded to conductive connectors (such as solder strips), the existing repair method involves removing the cells requiring repair from the string after heat melting, and then soldering new replacement cells onto the string to achieve repair.

[0004] To ensure a stable connection between the solar cells and the solder ribbon, the grid lines of the solar cells need to be connected to the corresponding solder ribbons. However, if the above-mentioned rework method is used, the connection positions of the solar cells and solder ribbons need to be repeatedly adjusted and replaced, thereby reducing the rework efficiency of the solar cell string. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the purpose of this application is to provide a battery replacement chip repair method and device with high repair efficiency.

[0006] To achieve the above objectives, this application adopts the following technical solution:

[0007] A method for repairing battery string replacement pieces, the battery string including multiple battery cells and a group of solder ribbons arranged on the multiple battery cells, the multiple battery cells arranged along a preset direction, the solder ribbons extending along the preset direction, the solder ribbons connecting the multiple battery cells, and the solder ribbons including multiple solder ribbons. The battery cell requiring repair in the battery string is defined as the first battery cell, the battery cells on both sides of the first battery cell along the preset direction are defined as second battery cells, and the battery cell used for replacement is defined as the replacement battery cell. The repair method includes: disconnecting the solder ribbons between the first battery cell and the two second battery cells; moving the replacement battery cell between the two second battery cells; connecting the solder ribbons on one side of the replacement battery cell to the solder ribbons on one of the second battery cells via a first connector, and connecting the solder ribbons on the other side of the replacement battery cell to the solder ribbons on the other second battery cell via a second connector, wherein both the first connector and the second connector are conductive.

[0008] Furthermore, both the first and second connectors are provided, wherein the solder strip on one side of the replacement battery cell and the solder strip on one of the second battery cells are connected to the first connector, and the solder strip on the other side of the replacement battery cell and the solder strip on the other second battery cell are connected to the second connector; or, both the first and second connectors are provided in multiples, with multiple first connectors interconnected and multiple second connectors interconnected, wherein the solder strip on one side of the replacement battery cell and the solder strip on one of the second battery cells are respectively connected to multiple first connectors, and the solder strip on the other side of the replacement battery cell and the solder strip on the other second battery cell are respectively connected to multiple second connectors.

[0009] Further, the rework method includes: connecting the first connector to the solder strip on one side of the replacement battery cell; connecting the second connector to the solder strip on the other side of the replacement battery cell; moving the replacement battery cell between the two second battery cells; connecting the first connector to the solder strip on one of the second battery cells, and connecting the second connector to the solder strip on the other second battery cell. Alternatively, the rework method includes: connecting the first connector to the solder strip on one of the second battery cells; connecting the second connector to the solder strip on the other second battery cell; moving the replacement battery cell between the two second battery cells; connecting the first connector to the solder strip on one side of the replacement battery cell, and connecting the second connector to the solder strip on the other side of the replacement battery cell. Alternatively, the rework method includes: connecting the first connector to the solder strip on one of the second battery cells; connecting the second connector to the solder strip on one side of the replacement battery cell; moving the replacement battery cell between the two second battery cells; connecting the first connector to the solder strip on the other side of the replacement battery cell, and connecting the second connector to the solder strip on the other second battery cell. Alternatively, there are two first connectors and two second connectors; the repair method includes: connecting one of the first connectors to the solder strip on one of the second battery cells, and connecting the other first connector to the solder strip on one side of the replacement battery cell; connecting one of the second connectors to the solder strip on the other second battery cell, and connecting the other second connector to the solder strip on the other side of the replacement battery cell; moving the replacement battery cell between the two second battery cells; connecting the two first connectors, and connecting the two second connectors.

[0010] Furthermore, the repair method includes: moving a replacement battery cell between two second battery cells, with the replacement battery cell positioned above the first battery cell; connecting the solder strip on one side of the replacement battery cell to the solder strip on one of the second battery cells via a first connector, and connecting the solder strip on the other side of the replacement battery cell to the solder strip on the other second battery cell via a second connector; flipping the battery string so that the replacement battery cell is positioned below the first battery cell; and disconnecting the solder strip between the first battery cell and the two second battery cells.

[0011] Furthermore, the solder strip between the first battery cell and the two second battery cells is defined as a pre-disconnection section. The rework method includes: connecting the first connector to the pre-disconnection section on one side of the first battery cell; connecting the second connector to the pre-disconnection section on the other side of the first battery cell; disconnecting the pre-disconnection section from the first battery cell, with the first connector and the second connector each connected to a second battery cell through a pre-disconnection section; moving a replacement battery cell between the two second battery cells; connecting the solder strip on one side of the first connector to the replacement battery cell, and connecting the solder strip on the other side of the second connector to the replacement battery cell.

[0012] Furthermore, the solder strip between the first battery cell and the two second battery cells is defined as a pre-disconnection segment, the end of the pre-disconnection segment connecting to the first battery cell is defined as the first connection end, and the end of the pre-disconnection segment connecting to the second battery cell is defined as the second connection end. The rework method also includes: disconnecting the first connection end from the first battery cell so that the length of the pre-disconnection segment meets the preset length.

[0013] Further, the solder ribbon on the replacement battery cell is defined as the replacement solder ribbon. The rework method also includes: placing multiple battery cells to be processed, multiple first connectors, and multiple second connectors on a carrier, with one first connector and one second connector placed between two adjacent battery cells to be processed; winding the replacement solder ribbon onto the carrier, so that the replacement solder ribbon is connected to the multiple battery cells to be processed, the multiple first connectors, and the multiple second connectors; disconnecting the replacement solder ribbon between the first connectors and the second connectors to form an assembly of the replacement battery cell, the first connectors, and the second connectors. Alternatively, the rework method further includes: winding the replacement solder ribbon onto a carrier; placing multiple battery cells to be processed, multiple first connectors, and multiple second connectors on the carrier, so that the multiple battery cells to be processed, the multiple first connectors, and the multiple second connectors are connected to the replacement solder ribbon; wherein one first connector and one second connector are placed between two adjacent battery cells to be processed; disconnecting the replacement solder ribbon between the first connectors and the second connectors to form an assembly of the replacement battery cell, the first connector, and the second connector.

[0014] Furthermore, the replacement solder strips include positive electrode solder strips and negative electrode solder strips, which are alternately distributed. Disconnecting the replacement solder strips between the first connector and the second connector includes: disconnecting the positive electrode solder strips and negative electrode solder strips between the first connector and the second connector. Disconnecting the positive electrode solder strip between the first connector and the cell to be processed, and disconnecting the negative electrode solder strip between the second connector and the cell to be processed.

[0015] Furthermore, the battery string includes multiple battery cells and a group of solder ribbons arranged on the multiple battery cells. The multiple battery cells are arranged along a preset direction, and the solder ribbon group extends along the preset direction, connecting the multiple battery cells. The solder ribbon group includes multiple solder ribbons. The battery cell requiring repair in the battery string is defined as the first battery cell, and the first battery cell is located at the beginning and / or end of the battery string. The battery cell connected to the first battery cell is defined as the second battery cell, and the battery cell used for replacement is defined as the replacement battery cell. The repair method includes: disconnecting the solder ribbons between the first battery cell and the second battery cell; moving the replacement battery cell to one side of the second battery cell; and connecting the solder ribbons of the replacement battery cell to the solder ribbons on the second battery cell via a first connector, wherein the first connector is conductive.

[0016] To achieve the above objectives, this application adopts the following technical solution:

[0017] A battery string replacement repair device is disclosed, applicable to the aforementioned repair method. The device includes a repair platform, a cutting mechanism, a moving mechanism, and a connecting mechanism. The repair platform is used to place the battery string; the cutting mechanism is used to disconnect the solder strips between the first battery cell and two second battery cells; the moving mechanism is used to move the replacement battery cell and the connector; and the connecting mechanism is used to connect the second battery cell to the replacement battery cell via the connector.

[0018] The above-mentioned battery string replacement repair method and repair device separates the first and second battery cells that need to be repaired by cutting the solder strip, and then connects the replacement battery cell to the second battery cell through the first and second connectors to realize the repair of the battery string. There is no need to repeatedly adjust the connection position of the replacement battery cell and the solder strip, which helps to improve the repair efficiency of the battery string. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the battery string structure in an embodiment of this application.

[0020] Figure 2 This is a schematic flowchart of the battery replacement chip repair method in the embodiments of this application.

[0021] Figure 3 This is a schematic diagram of another structure of the battery string in the embodiments of this application.

[0022] Figure 4 This is a schematic diagram illustrating the specific process of the battery replacement chip repair method in the embodiments of this application.

[0023] Figure 5 This is a schematic diagram of the second specific process of the battery replacement chip repair method in the embodiments of this application.

[0024] Figure 6 This is a schematic diagram of the third specific process of the battery replacement chip repair method in the embodiments of this application.

[0025] Figure 7 This is a schematic diagram of the fourth specific process of the battery replacement chip repair method in the embodiments of this application.

[0026] Figure 8 This is a schematic diagram of the fifth specific process of the battery replacement chip repair method in the embodiments of this application.

[0027] Figure 9 This is a schematic diagram of the sixth specific process of the battery replacement chip repair method in the embodiments of this application.

[0028] Figure 10 This is a flowchart illustrating step S111 of the battery replacement chip repair method in the embodiments of this application.

[0029] Figure 11 This is a flowchart illustrating the manufacturing method of replacing battery cells in the battery replacement cell repair method of this application embodiment.

[0030] Figure 12 This is a schematic diagram of another process for manufacturing replacement battery cells in the battery replacement cell repair method of this application embodiment.

[0031] Figure 13 This is a schematic diagram of the specific process of step Q3 in the embodiments of this application.

[0032] Figure 14 This is a flowchart illustrating another battery replacement chip repair method in an embodiment of this application.

[0033] Figure 15 This is a schematic diagram of the battery replacement chip repair device in the embodiments of this application.

[0034] Figure 16 This is a schematic diagram of the fixing mechanism of the battery replacement chip repair device in the embodiments of this application. Detailed Implementation

[0035] To enable those skilled in the art to better understand the present application, the technical solutions in specific embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0036] It should be noted that the terms "first," "second," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, "a" or "one," and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. "A plurality" or "several" indicates at least two. Unless otherwise stated, terms such as "front," "back," "left," "right," "lower," and / or "upper" are for illustrative purposes only and are not limited to a location or spatial orientation. Terms such as "comprising" or "including" indicate that the elements or objects preceding "comprising" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.

[0037] The singular forms “a,” “the,” and “the” used in this application specification and appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0038] To clearly illustrate the technical solution of this application, the following are also defined: Figure 1 The left and right sides are shown.

[0039] like Figure 1 As shown, this application provides a battery string 100, which includes a plurality of battery cells 11 and a ribbon assembly 12, the ribbon assembly 12 being disposed on the battery cells 11. The plurality of battery cells 11 are arranged along a predetermined direction 101, and the ribbon assembly 12 extends along the predetermined direction 101. The predetermined direction 101 is the length direction of the battery string 100 in this application. In this application, the length direction of the battery string 100 is... Figure 1 The left and right directions in the middle.

[0040] Specifically, the ribbon group 12 connects multiple battery cells 11. The ribbon group 12 includes multiple ribbons, which enable the multiple battery cells 11 to conduct electricity to form a battery string 100.

[0041] It should be noted that the solder strip group 12 in this application can be a regular solder strip group or a dense solder strip group. A regular solder strip group refers to a solder strip group 12 with fewer than 50 solder strips, while a dense solder strip group refers to a solder strip group 12 with 50 or more solder strips.

[0042] More specifically, the battery cell 11 that needs to be repaired in the battery string 100 is defined as the first battery cell 111, the battery cells 11 on both sides of the first battery cell 111 along the preset direction 101 are defined as the second battery cell 112, and the battery cell 11 used for replacement is defined as the replacement battery cell 113.

[0043] More specifically, the replacement cell 113 is connected with solder ribbons, and the battery string 100 also includes a first connector 13 and a second connector 14. The first connector 13 and the second connector 14 are used to connect the solder ribbons on the replacement cell 113 to the solder ribbon group 12 between the first cell 111 and the second cell 112.

[0044] With this configuration, the first connector 13 and the second connector 14 are connected so that the replacement battery cell 113 can replace the first battery cell 111 in the battery string 100, thus enabling the battery string 100 to be repaired without having to peel the first battery cell 111 off the ribbon group 12 or connect the grid lines of the replacement battery cell 113 to the ribbon group 12. This improves the repair efficiency of the battery string 100.

[0045] It should be noted that the extension direction of the solder strip on the replacement cell 113 is the same as the extension direction of the solder strip on the battery string 100.

[0046] It should be noted that both the first connector 13 and the second connector 14 are conductive, so that the solder strips on the replacement battery cell 113 and the solder strips on the second battery cell 112 are connected and conductive through the first connector 13 and the second connector 14.

[0047] For example, the first connector 13 and the second connector 14 can be busbars, which connect and conduct the solder strips on the second battery cell 112 to the solder strips on the replacement battery cell 113, so as to realize the conduction of the battery string 100.

[0048] It should be noted that the first connector 13 and the second connector 14 can also be other conductive components, such as metal strips, and this application does not impose any restrictions on them. Furthermore, the materials of the first connector 13 and the second connector 14 can be the same or different.

[0049] It should be noted that the first battery cell 111 in this application can be a single battery cell or several consecutive battery cells. Therefore, this application does not limit the number of battery cells in the first battery cell 111. Secondly, the replacement battery cell 113 in this application can be at least one battery cell. Furthermore, the number of battery cells in the replacement battery cell 113 in this application can be the same as the number of battery cells in the first battery cell 111, or they can be different, as long as the repaired battery string 100 can meet the working requirements.

[0050] Furthermore, the number of solder strips on the replacement battery cell 113 in this application may or may not be the same as the number of solder strips in the solder strip group 12. This application does not impose any restrictions on this, as long as the battery string 100 can work after the replacement battery cell 113 is connected to the second battery cell 112.

[0051] like Figure 2 As shown, this application provides a method for repairing 100 battery cells by replacing individual cells. The repair method includes:

[0052] S1: Disconnect the solder strip between the first battery cell 111 and the two second battery cells 112;

[0053] In step S1, after disconnecting the solder strip, the first battery cell 111 that needs to be repaired can be removed from the battery string 100.

[0054] S2: Move the replacement battery cell 113 between the two second battery cells 112;

[0055] In step S2, replacing the battery cell 113 can fill the gap in the first battery cell 111 in the battery string 100, so as to facilitate the formation of a complete battery string 100 through subsequent steps.

[0056] S3: Connect the solder strip on one side of the replacement battery cell 113 to the solder strip on one of the second battery cells 112 via the first connector 13, and connect the solder strip on the other side of the replacement battery cell 113 to the solder strip on the other second battery cell 112 via the second connector 14.

[0057] In step S3, the first connector 13 and the second connector 14 can respectively connect the solder strips on both sides of the replacement battery cell 113 to the solder strips on the two second battery cells 112, thereby realizing the conduction between the replacement battery cell 113 and the two second battery cells 112.

[0058] Through the above steps, it is not necessary to peel the first battery cell 111 off the solder ribbon group 12 after hot melting, which helps to improve the separation efficiency of the first battery cell 111 on the battery string 100, thereby improving the rework efficiency of the battery string 100. Furthermore, the first connector 13 and the second connector 14 enable the replacement battery cell 113 and the second battery cell 112 to be connected, thus eliminating the need to connect the grid lines on the replacement battery cell 113 to the solder ribbon group 12, further improving the rework efficiency of the battery string 100.

[0059] It should be noted that although the logical order is shown in the flowchart above or in the accompanying drawings, in some cases, the steps shown or described may be performed in a different order than that shown here. For example, step S1 may be performed after step S2, or step S1 may be performed after step S3, and this application does not impose any restrictions.

[0060] In one embodiment, both the first connector 13 and the second connector 14 are provided. The solder strip on one side of the replacement battery cell 113 and the solder strip on one of the second battery cells 112 are connected to the first connector 13, and the solder strip on the other side of the replacement battery cell 113 and the solder strip on the other second battery cell 112 are connected to the second connector 14. This arrangement, since there is only one first connector 13 and one second connector 14, simplifies the connection process between the first connector 13 and the solder strip, and also simplifies the connection process between the second connector 14 and the solder strip, thereby improving the connection efficiency of the replacement battery cell 113 and the second battery cell 112.

[0061] As another implementation method, such as Figure 3 As shown, multiple first connectors 13 and multiple second connectors 14 are provided. Multiple first connectors 13 are interconnected, and multiple second connectors 14 are interconnected. The solder strip on one side of the replacement battery cell 113 and the solder strip on one of the second battery cells 112 are respectively connected to multiple first connectors 13. The solder strip on the other side of the replacement battery cell 113 and the solder strip on the other second battery cell 112 are respectively connected to multiple second connectors 14. This arrangement improves the connection stability of the replacement battery cell 113 and the two second battery cells 112, preventing a single first connector 13 or second connector 14 from detaching from the solder strip and causing the replacement battery cell 113 and the two second battery cells 112 to separate, thereby improving the operational stability of the battery string 100.

[0062] For example, the first connector 13 and the second connector 14 are connected to the welding strip by bonding or welding, thereby realizing the connection and conduction of the replacement battery cell 113 and the two second battery cells 112. It should be noted that this application does not limit the connection method between the first connector 13 and the welding strip, or the connection method between the second connector 14 and the welding strip, as long as the connection and conduction of the replacement battery cell 113 and the two second battery cells 112 can be realized through the first connector 13 and the second connector 14.

[0063] like Figure 4 As shown, in one embodiment, the first connector 13 and the second connector 14 are first connected to the solder strips on both sides of the replacement battery cell 113 respectively, and then the first connector 13 and the second connector 14 are connected to the two second battery cells 112 respectively.

[0064] Specifically, step S3 includes the following steps:

[0065] S31: The solder strip connecting the first connector 13 to one side of the replacement battery cell 113;

[0066] S32: Connect the second connector 14 to the solder strip on the other side of the replacement battery cell 113;

[0067] S33: Connect the first connector 13 to the solder strip on one of the second battery cells 112, and connect the second connector 14 to the solder strip on the other second battery cell 112.

[0068] In steps S31 and S32, the first connector 13 and the second connector 14 can constrain the solder strips on both sides of the replacement battery cell 113 to prevent the solder strips on both sides of the replacement battery cell 113 from becoming scattered, thereby improving the connection efficiency between the replacement battery cell 113 and the second battery cell 112.

[0069] Therefore, in this embodiment, the rework method includes the following steps:

[0070] S1: Disconnect the solder strip between the first battery cell 111 and the two second battery cells 112;

[0071] S2: Move the replacement battery cell 113 between the two second battery cells 112;

[0072] S31: The solder strip connecting the first connector 13 to one side of the replacement battery cell 113;

[0073] S32: Connect the second connector 14 to the solder strip on the other side of the replacement battery cell 113;

[0074] S33: Connect the first connector 13 to the solder strip on one of the second battery cells 112, and connect the second connector 14 to the solder strip on the other second battery cell 112.

[0075] Through the above steps, the solder strip on the replacement battery cell 113 can be connected and made conductive with the solder strip on the two second battery cells 112 through the first connector 13 and the second connector 14, thereby realizing the repair of the battery string 100.

[0076] It should be noted that although the logical order is shown in the flowchart above or in the accompanying drawings, in some cases, the steps shown or described may be performed in a different order than that shown here. For example, steps S31 and S32 can be interchanged. Alternatively, step S2 may be performed after step S31, or after step S32, or after step S33; this application does not impose any restrictions.

[0077] like Figure 5 As shown, in another embodiment, the first connector 13 and the second connector 14 are first connected to the solder strips on the second battery cell 112 on both sides of the first battery cell 111, and then the first connector 13 and the second connector 14 are connected to the solder strips on both sides of the replacement battery cell 113.

[0078] Specifically, step S3 includes the following steps:

[0079] S31: Connecting the first connector 13 to the solder strip on one of the second battery cells 112;

[0080] S32: Connecting the second connector 14 to the solder strip on another second battery cell 112;

[0081] S33: Connect the first connector 13 to the solder strip on one side of the replacement battery cell 113, and connect the second connector 14 to the solder strip on the other side of the replacement battery cell 113.

[0082] In steps S31 and S32, the first connector 13 and the second connector 14 can respectively constrain the solder ribbons of the two second battery cells 112 to prevent the solder ribbons of the two second battery cells 112 from becoming scattered, thereby improving the connection efficiency between the replacement battery cell 113 and the second battery cell 112, and thus improving the repair efficiency of the battery string 100.

[0083] Therefore, in this embodiment, the rework method includes the following steps:

[0084] S1: Disconnect the solder strip between the first battery cell 111 and the two second battery cells 112;

[0085] S2: Move the replacement battery cell 113 between the two second battery cells 112;

[0086] S31: Connecting the first connector 13 to the solder strip on one of the second battery cells 112;

[0087] S32: Connecting the second connector 14 to the solder strip on another second battery cell 112;

[0088] S33: Connect the first connector 13 to the solder strip on one side of the replacement battery cell 113, and connect the second connector 14 to the solder strip on the other side of the replacement battery cell 113.

[0089] Through the above steps, the solder strip on the replacement battery cell 113 can be connected and made conductive with the solder strip on the two second battery cells 112 through the first connector 13 and the second connector 14, thereby realizing the repair of the battery string 100.

[0090] It should be noted that although the logical order is shown in the flowchart above or in the accompanying drawings, in some cases, the steps shown or described may be performed in a different order than that shown here. For example, steps S31 and S32 may be interchanged, or step S2 may be performed after step S31, or step S2 may be performed after step S32, or step S2 may be performed after step S33. This application does not impose any restrictions.

[0091] like Figure 6 As shown, in another embodiment, the first connector 13 first connects to the solder strip on one of the second battery cells 112, the second connector 14 first connects to the solder strip on one side of the replacement battery cell 113, then the first connector 13 connects to the solder strip on the other side of the replacement battery cell 113, and the second connector 14 connects to the solder strip on the other second battery cell 112.

[0092] Specifically, step S3 includes the following steps:

[0093] S31: Connecting the first connector 13 to the solder strip on one of the second battery cells 112;

[0094] S32: The solder strip connecting the second connector 14 to the side of the replacement battery cell 113;

[0095] S33: Connect the first connector 13 to the solder strip on the other side of the replacement battery cell 113, and connect the second connector 14 to the solder strip on another second battery cell 112.

[0096] In step S31, the solder ribbon on a second battery cell 112 can be fixed by the first connector 13 to prevent the solder ribbon on the second battery cell 112 from becoming scattered, which is beneficial for replacing the connection between the battery cell 113 and the second battery cell 112.

[0097] In step S32, the solder strip on one side of the replacement cell 113 can be fixed by the second connector 14 to prevent the solder strip on that side from becoming scattered, which is beneficial for the connection between the replacement cell 113 and the second cell 112.

[0098] Therefore, in this embodiment, the rework method includes the following steps:

[0099] S1: Disconnect the solder strip between the first battery cell 111 and the two second battery cells 112;

[0100] S2: Move the replacement battery cell 113 between the two second battery cells 112;

[0101] S31: Connecting the first connector 13 to the solder strip on one of the second battery cells 112;

[0102] S32: The solder strip connecting the second connector 14 to the side of the replacement battery cell 113;

[0103] S33: Connect the first connector 13 to the solder strip on the other side of the replacement battery cell 113, and connect the second connector 14 to the solder strip on another second battery cell 112.

[0104] Through the above steps, the solder strips on the replacement battery cell 113 and the solder strips on the two second battery cells 112 can be connected and made conductive through the first connector 13 and the second connector 14, thereby realizing the repair of the battery string 100.

[0105] It should be noted that although the logical order is shown in the flowchart above or in the accompanying drawings, in some cases, the steps shown or described may be performed in a different order than that shown here. For example, steps S31 and S32 can be interchanged. Alternatively, step S2 may be performed after step S31, or after step S32, or after step S33; this application does not impose any restrictions.

[0106] like Figure 7 As shown, in another embodiment, there are two first connectors 13 and two second connectors 14. The two first connectors 13 are respectively connected to the solder strip on one of the second battery cells 112 and the solder strip on one side of the replacement battery cell 113, and the two second connectors 14 are respectively connected to the solder strip on the other second battery cell 112 and the solder strip on the other side of the replacement battery cell 113.

[0107] Specifically, step S3 includes the following steps:

[0108] S31: Connect one of the first connectors 13 to the solder strip on one of the second cell 112, and connect the other first connector 13 to the solder strip on the side of the replacement cell 113;

[0109] S32: Connect one of the second connectors 14 to the solder strip on the other second cell 112, and connect the other second connector 14 to the solder strip on the other side of the replacement cell 113;

[0110] S33: Connect two first connectors 13 and connect two second connectors 14.

[0111] In steps S31 and S32, the solder ribbons on the two second battery cells 112 and the solder ribbons on both sides of the replacement battery cell 113 can be fixed by the two first connectors 13 and the two second connectors 14 to prevent the solder ribbons from becoming scattered, which is beneficial to the connection between the replacement battery cell 113 and the second battery cell 112, and thus helps to improve the repair efficiency of the battery string 100.

[0112] Therefore, in this embodiment, the rework method includes the following steps:

[0113] S1: Disconnect the solder strip between the first battery cell 111 and the two second battery cells 112;

[0114] S2: Move the replacement battery cell 113 between the two second battery cells 112;

[0115] S31: Connect one of the first connectors 13 to the solder strip on one of the second cell 112, and connect the other first connector 13 to the solder strip on the side of the replacement cell 113;

[0116] S32: Connect one of the second connectors 14 to the solder strip on the other second cell 112, and connect the other second connector 14 to the solder strip on the other side of the replacement cell 113;

[0117] S33: Connect two first connectors 13 and connect two second connectors 14.

[0118] Through the above steps, the solder strips on the replacement battery cell 113 and the solder strips on the two second battery cells 112 can be connected and made conductive through the first connector 13 and the second connector 14, thereby realizing the repair of the battery string 100.

[0119] It should be noted that although the logical order is shown in the flowchart above or in the accompanying drawings, in some cases, the steps shown or described may be performed in a different order than that shown here. For example, steps S31 and S32 can be interchanged. Alternatively, step S2 may be performed after step S31, or after step S32, or after step S33; this application does not impose any restrictions.

[0120] like Figure 8 As shown, in one embodiment, this application can first connect the replacement battery cell 113 between the two second battery cells 112, and then remove the first battery cell 111. At this time, in step S2, when the replacement battery cell 113 is moved between the two second battery cells 112, the replacement battery cell 113 is located above the first battery cell 111.

[0121] Therefore, in this embodiment, the rework method includes the following steps:

[0122] S2: Move the replacement battery cell 113 between the two second battery cells 112, at which point the replacement battery cell 113 is located above the first battery cell 111.

[0123] In this embodiment, step S2 allows the replacement battery cell 113 to cover the first battery cell 111, which is beneficial for filling the gap in the first battery cell 111 later.

[0124] S3: Connect the solder strip on one side of the replacement battery cell 113 to the solder strip on one of the second battery cells 112 via the first connector 13, and connect the solder strip on the other side of the replacement battery cell 113 to the solder strip on the other second battery cell 112 via the second connector 14.

[0125] In step S3, the replacement battery cell 113 and the second connector 14 are connected and made conductive through the first connector 13 and the second connector 14.

[0126] Since the first battery cell 111 needs to be removed at this point, the rework method also includes the following steps:

[0127] S4: Flip the battery string 100 and replace the battery cell 113 located below the first battery cell 111.

[0128] With the above settings, the replacement battery 113 will not be damaged during the subsequent removal of the first battery cell 111, and the replacement battery cell 113 will not interfere with the removal of the first battery cell 111.

[0129] Furthermore, in this application, step S1 is the final step, that is, step S1 is executed after step S4, and the first battery cell 111 that needs to be repaired can be removed from the battery string 100 after the solder strip is disconnected.

[0130] Through the above steps, the solder strips on the replacement battery cell 113 and the solder strips on the two second battery cells 112 can be connected and made conductive through the first connector 13 and the second connector 14, thereby realizing the repair of the battery string 100.

[0131] like Figure 9 As shown, in one implementation, the solder strip between the first battery cell 111 and the two second battery cells 112 is defined as a pre-disconnected section. Then step S3 includes the following steps:

[0132] S31: Pre-disconnection section connecting the first connector 13 to one side of the first battery cell 111;

[0133] S32: The pre-disconnection section connecting the second connector 14 to the other side of the first battery cell 111;

[0134] S33: Connect the first connector 13 to the solder strip on one side of the replacement battery cell 113, and connect the second connector 14 to the solder strip on the other side of the replacement battery cell 113.

[0135] In steps S31 and S32, the first connector 13 can constrain the solder strip on one side of the first battery cell 111, and the second connector 14 can constrain the solder strip on the other side of the first battery cell 111, thereby preventing the solder strips on both sides of the first battery cell 111 from becoming scattered after the solder strips are cut, which is beneficial for replacing the connection between the battery cell 113 and the first battery cell 111.

[0136] Secondly, in this embodiment, step S1 includes the following steps:

[0137] S11: Disconnect the pre-disconnection section from the first battery cell 111;

[0138] In this embodiment, the first battery cell 111 is separated from the two second battery cells 112 by disconnecting the pre-disconnection section, thereby removing the first battery cell 111 from the battery string 100.

[0139] Therefore, in this embodiment, the rework method includes:

[0140] S11: Disconnect the pre-disconnection section from the first battery cell 111.

[0141] S2: Move the replacement battery cell 113 between the two second battery cells 112;

[0142] S31: Pre-disconnection section connecting the first connector 13 to one side of the first battery cell 111;

[0143] S32: The pre-disconnection section connecting the second connector 14 to the other side of the first battery cell 111;

[0144] S33: Connect the first connector 13 to the solder strip on one side of the replacement battery cell 113, and connect the second connector 14 to the solder strip on the other side of the replacement battery cell 113.

[0145] Through the above steps, the solder strips on the replacement battery cell 113 and the solder strips on the two second battery cells 112 can be connected and made conductive through the first connector 13 and the second connector 14, thereby realizing the repair of the battery string 100.

[0146] It should be noted that although a logical order is shown in the flowchart above or in the accompanying drawings, in some cases, the steps shown or described may be executed in a different order than that shown here. For example, step S2 may be executed after step S31, or step S2 may be executed after step S32, step S11 may be executed after step S2, step S11 may be executed after step S31, step S11 may be executed after step S32, or step S11 may be executed after step S33. This application does not impose any limitations on this.

[0147] Secondly, when step S11 is executed after step S32 and after step S33, a second battery cell 112 is connected by the first connector 13 and the second connector 14 through a pre-disconnection section, so that the first connector 13 and the second connector 14 can constrain the solder ribbons of the two second battery cells 112 to avoid the solder ribbons of the second battery cells 112 from becoming scattered when the pre-disconnection section is disconnected, which is beneficial to replacing the connection between the battery cell 113 and the second battery cell 112.

[0148] like Figure 10 As shown, in one embodiment, the end of the pre-disconnect segment connected to the first battery cell 111 is defined as the first connection end, and the end of the pre-disconnect segment connected to the second battery cell 112 is defined as the second connection end. The first connection end may be located at the edge of the first battery cell 111; or, the distance between the first connection end and the edge of the first battery cell 111 may be less than the distance between the first connection end and the second connection end.

[0149] Then, step S11 above includes the following steps:

[0150] S111: Disconnect the first connection end from the first battery cell 111 so that the length of the pre-disconnected segment meets the preset length.

[0151] In step S111, the preset length is the length of the solder strip on the second battery cell 112 that can be connected to the replacement battery cell 113. Therefore, after disconnecting the first battery cell 111 and the second battery cell 112, the length of the solder strip on the second battery cell 112 is sufficient to meet the connection requirements between the second battery cell 112 and the replacement battery cell 113.

[0152] like Figure 11 As shown, in one embodiment, the solder strip on the replacement battery cell 113 is defined as the replacement solder strip. To obtain the replacement battery cell 113, the rework method further includes: a method for manufacturing the replacement battery cell 113, which includes the following steps:

[0153] Q1: Place multiple battery cells to be processed, multiple first connectors 13 and multiple second connectors 14 on a carrier, with a first connector 13 and a second connector 14 placed between two adjacent battery cells to be processed;

[0154] In step Q1, the carrier can be a flat plate structure or a roller structure, as long as it can accommodate the battery cell to be processed, the first connector 13, and the second connector 14. This application does not limit the form of the carrier. Furthermore, this application uses a roller structure as an example for illustration.

[0155] Q2: The replacement welding strip is wound onto the carrier so that the replacement welding strip is connected to multiple cells to be processed, multiple first connectors 13 and multiple second connectors 14;

[0156] In step Q2, the replacement solder strip can be connected to the battery cell to be processed, the first connector 13, and the second connector 14 by bonding or welding. It should be noted that this application does not limit the connection method between the replacement solder strip and the above-mentioned components, as long as the replacement solder strip can be fixed to the above-mentioned components.

[0157] Q3: Disconnect the replacement solder strip between the first connector 13 and the second connector 14 to form an assembly having a replacement battery cell 113, the first connector 13 and the second connector 14.

[0158] In step Q3, the replacement solder strip between the first connector 13 and the second connector 14 is cut using a grinding wheel or laser to facilitate the formation of an assembly of the replacement battery cell 113, the first connector 13, and the second connector 14. It should be noted that this application does not limit the method of cutting the replacement solder strip between the first connector 13 and the second connector 14.

[0159] like Figure 12 As shown, in another embodiment, the replacement welding strip can be wound onto the carrier first, and then multiple battery cells to be processed, multiple first connectors 13 and multiple second connectors 14 can be placed on the carrier.

[0160] Therefore, in this embodiment, the manufacturing method includes the following steps:

[0161] Q1: Replace the welding strip on a carrier;

[0162] Q2: Place multiple battery cells to be processed, multiple first connectors 13 and multiple second connectors 14 on a carrier, so that the multiple battery cells to be processed, the multiple first connectors 13 and the multiple second connectors 14 are connected to the replacement solder strip; wherein, a first connector 13 and a second connector 14 are placed between two adjacent battery cells to be processed.

[0163] Q3: Disconnect the replacement solder strip between the first connector 13 and the second connector 14 to form an assembly having a replacement battery cell 113, the first connector 13 and the second connector 14.

[0164] As can be seen from the above, this application does not restrict whether the replacement welding strip is wound around the carrier first or whether the battery cell to be processed, the first connector 13 and the second connector 14 are placed first.

[0165] like Figure 13As shown, in one embodiment, the battery string 100 includes a BC battery (Back Contact) or a TOPCon battery (Tunnel Oxide Passivated Contact). Specifically, the replacement solder strips include positive electrode solder strips and negative electrode solder strips. The positive electrode solder strips and negative electrode solder strips are alternately distributed.

[0166] Because the positive and negative electrode solder strips of the BC battery cells need to be broken alternately, step Q3 above includes the following steps to obtain a replacement BC battery cell 113:

[0167] Q31: Disconnect the positive and negative electrode solder strips between the first connector 13 and the second connector 14;

[0168] In step Q31, after disconnecting the positive electrode solder strip and the negative electrode solder strip, a combination of replacement battery cell 113, first connector 13 and second connector 14 can be obtained.

[0169] Q32: Disconnect the positive electrode solder strip between the first connector 13 and the battery cell to be processed, and disconnect the negative electrode solder strip between the second connector 14 and the battery cell to be processed.

[0170] In step Q31, the positive electrode solder strip and the negative electrode solder strip are disconnected respectively to obtain an assembly of a replacement battery cell 113, a first connector 13 and a second connector 14 that can be adapted to the BC battery.

[0171] It should be noted that since the positive and negative electrode solder strips of the TOPCon battery cells do not need to be broken at intervals, when obtaining the replacement battery cell 113 of the TOPCon battery, it is not necessary to break the positive and negative electrode solder strips separately in the above steps S31 and S32.

[0172] like Figure 14 As shown, in another embodiment, the first battery cell 111 is located at the beginning and / or end of the battery string 100. In this case, there is only one second battery cell 112 connected to the first battery cell 111. The rework method then includes the following steps:

[0173] U1: Disconnect the solder strip between the first battery cell 111 and the second battery cell 112;

[0174] In step U1, since the first battery cell 111 is located at the beginning and / or end of the battery string 100, it is only necessary to disconnect the solder strip on one side of the first battery cell 111 to separate the first battery cell 111 from the second battery cell 112.

[0175] U2: Move the replacement battery cell 113 to one side of the second battery cell 112;

[0176] In step U1, the replacement battery cell 113 can fill the gap in the first battery cell 111 in the battery string 100 to form a complete battery string 100.

[0177] U3: The solder strip of the replacement cell 113 is connected to the solder strip on the second cell 112 via the first connector 13, wherein the first connector 13 is conductive.

[0178] In step U3, the replacement battery cell 113 and the second battery cell 112 can be connected and made conductive through the first connector 13.

[0179] Through the above steps, the first battery cell 111 located at the beginning and / or end of the battery string 100 can be replaced with a replacement battery cell 113, thereby realizing the repair of the battery string 100.

[0180] It should be noted that although the logical order is shown in the flowchart above or in the accompanying drawings, in some cases, the steps shown or described may be performed in a different order than that shown here. For example, step U1 may be performed after step U2, or step U1 may be performed after step U3, and this application does not impose any restrictions.

[0181] like Figure 15 As shown, this application provides a battery string 100 replacement repair device 200, which includes a repair platform 21, a cutting mechanism 22, a moving mechanism (not shown), and a connecting mechanism (not shown). The repair platform 21 is used to place the battery string 100; the cutting mechanism 22 is used to disconnect the solder strip between the first battery cell 111 and two second battery cells 112; the moving mechanism is used to move the replacement battery cell 113 and the connector; and the connecting mechanism is used to connect the second battery cell 112 to the replacement battery cell 113 via the connector.

[0182] With this setup, the battery string 100 requiring repair is placed on the repair platform 21. The cutting mechanism 22 cuts the first battery piece 111 and the second battery piece 112, separating the first battery piece 111 from the battery string 100. A moving mechanism moves a replacement battery piece 113 to the original position of the first battery piece 111, filling the gap left by the first battery piece 111. A connecting mechanism connects the replacement battery piece 113 and the second battery piece 112 via a connector.

[0183] It should be noted that when the first battery cell 111 is located in the middle part of the battery string 100, the aforementioned connectors are the first connector 13 and the second connector 14. When the first battery cell 111 is located at the beginning or end of the battery string 100, the aforementioned connector is the first connector 13.

[0184] For example, the cutting mechanism 22 can be an abrasive wheel or a laser cutter, thereby enabling the welding strip between the first battery cell 111 and the second battery cell 112 to be cut, so as to facilitate the separation of the first battery cell 111 from the battery string 100.

[0185] For example, the moving mechanism is a robotic arm, which drives the replacement battery cell 113 and the connector to move, so as to facilitate the automatic repair of the battery string 100.

[0186] It should be noted that the number of moving mechanisms can be one, which can simultaneously move and replace the battery cell 113 and the connector. Alternatively, the number of moving mechanisms can be two, which can move and replace the battery cell 113 and the connector respectively. Or, the number of moving mechanisms can be three, which can move and replace the battery cell 113, the first connector 13, and the second connector 14 respectively.

[0187] It should be noted that when the connector is placed on the solder strip of the replacement cell 113, the moving mechanism is used to move the connector onto the carrier. When the connector is placed on the solder strip of the second cell 112, the moving mechanism is used to move the connector onto the battery string 100 of the rework platform 21.

[0188] For example, the connecting mechanism can be an electric heating lamp, which heats the solder strips on the replacement battery cell 113 and the second battery cell 112 so that the solder strips of the replacement battery cell 113 and the second battery cell 112 are connected and conductive with the connector, thereby enabling the solder strips of the replacement battery cell 113 and the second battery cell 112 to be welded and conductive.

[0189] like Figure 15 and Figure 16 As shown, in one embodiment, after the cutting mechanism 22 disconnects the solder strip between the first battery cell 111 and the two second battery cells 112, the solder strip connected to the second battery cells 112 is defined as a retained segment. The rework device 200 also includes a fixing mechanism 23, which is used to fix the retained segment. This arrangement allows the fixing mechanism 23 to constrain the retained segment, preventing it from becoming scattered and causing the second battery cells 112 to fail to connect with the connector, thus improving the rework efficiency of the battery string 100.

[0190] Specifically, the fixing mechanism 23 includes a first fixing member 231 and a second fixing member 232. A fixing region for fixing the retained section is formed between the first fixing member 231 and the second fixing member 232. At least one of the first fixing member 231 and the second fixing member 232 has a fixing notch 233 located in the fixing region. The fixing notch 233 is used to limit the position of the retained section. With this configuration, while the fixing mechanism 23 limits the position of the retained section, the fixing notch 233 allows the solder strips of the retained section to be separated from each other, thereby improving the neatness of the solder strips of the retained section. This facilitates the connection between the second battery cell 112 and the connector, and further facilitates the connection between the second battery cell 112 and the replacement battery cell 113.

[0191] More specifically, the fixing notch 233 is one of a fixing groove, a fixing hole, or a fixing tooth. The number of retained segments is 50 to 500 (i.e., the welding strip group 12 in this application is a dense welding strip group). When the retained segments are within the fixing area, each retained segment is fixed in a fixing groove, a fixing hole, or a fixing tooth. This arrangement can improve the neatness of the retained segments, thereby improving the connection efficiency between the second battery cell 112 and the connector.

[0192] It should be noted that the fixing notch 233 can also be other shapes, as long as the welding strip can be fixed through the fixing notch 233. This application does not impose any restrictions on this.

[0193] In one implementation, after the retaining segment is fixed by the fixing mechanism 23, the retaining segment is connected to the first connecting member 13, and / or, the retaining segment is connected to the second connecting member 14. Specifically, after the retaining segment is fixed by the fixing mechanism 23, the fixing mechanism 23 can be moved to a position close to the first connecting member 13 or the second connecting member 14 by the moving mechanism, thereby facilitating the connection of the retaining segment to the first connecting member 13 or the second connecting member 14. This arrangement prevents the retaining segment from becoming scattered, facilitating the connection between the retaining segment and the first connecting member 13, and also facilitating the connection between the retaining segment and the second connecting member 14, thereby improving the connection efficiency between the retaining segment and the first connecting member 13, and the connection efficiency between the retaining segment and the second connecting member 14.

[0194] like Figure 15 As shown, in one embodiment, the battery string 100 replacement and repair device 200 further includes a detection camera 24 and a power supply assembly (not shown). The detection camera 24 is used to detect whether there is a first battery cell 111 that needs to be repaired on the battery string 100. When the battery string 100 is placed on the repair platform 21, the power supply assembly powers the battery string 100 so that the detection camera 24 can detect whether there is a first battery cell 111 on the battery string 100.

[0195] It should be noted that when there are battery cells 11 that need to be repaired on the battery string 100, the brightness of the first battery cell 111 after power-on is different from that of the other battery cells 11, so that the detection camera 24 can determine whether it needs to be repaired based on the brightness of the battery cell 11.

[0196] In one implementation, the rework platform 21 is provided with multiple sets of suction holes 211. Each battery cell 11 in the battery string 100 is located on a set of suction holes 211. A negative pressure can be formed within the suction holes 211, allowing the suction holes 211 to hold the battery string 100, thus facilitating the fixation of the battery string 100 on the rework platform 21. When the first battery cell 111 and the second battery cell 112 are disconnected, the suction holes 211 holding the first battery cell 111 no longer form a negative pressure, allowing the first battery cell 111 to detach from the battery string 100. When the replacement battery cell 113 moves to the position where the first battery cell 111 was originally placed, a negative pressure is formed in the suction holes 211 at that location, allowing the rework platform 21 to fix the replacement battery cell 113, thus facilitating the connection between the replacement battery cell 113 and the second battery cell 112.

[0197] Taking the example of first disconnecting the solder strip between the first battery cell 111 and the two second battery cells 112, then moving the replacement battery cell 113 between the two battery cells 11, with the first connector 13 and the second connector 14 located on the replacement battery cell 113, the working process of the battery string 100 replacement repair device 200 of this application is as follows:

[0198] First, the battery string 100 is placed on the rework platform 21 and fixed to the platform 21 through the suction holes 211. Then, the battery string 100 is powered on by the power supply assembly, and the presence of a first battery piece 111 is detected by the detection camera 24. If the first battery piece 111 is present, the welding strip between the first battery piece 111 and the second battery pieces 112 on both sides is cut by the cutting mechanism 22. At this time, the suction hole 211 at the first battery piece 111 no longer forms a negative pressure, facilitating the separation of the first battery piece 111 from the battery string 100. Next, the first battery piece 111 is removed by the moving mechanism, and a replacement battery piece 113 is moved between the two second battery pieces 112. At this time, the suction hole 211 at the replacement battery piece 113 forms a negative pressure, allowing the replacement battery piece 113 to be fixed to the rework platform 21. The first connector 13 and the second connector 14 are then connected to the two second battery cells 112 via a connecting mechanism to complete the initial repair of the battery cell 11. Finally, the power-on assembly and the detection camera 24 are used to check whether the repaired battery string 100 still contains the first battery cell 111 that needs to be repaired. If the first battery cell 111 is present, the above steps are repeated; if the first battery cell 111 is not present, the repair of the battery string 100 is complete.

[0199] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A method for repairing battery replacement cells, characterized in that, The battery string includes multiple battery cells and a group of solder ribbons arranged on the multiple battery cells. The multiple battery cells are arranged in a preset direction, and the group of solder ribbons extends in the preset direction. The group of solder ribbons connects the multiple battery cells, and the group of solder ribbons includes multiple solder ribbons. The battery cell that needs to be repaired in the battery string is defined as the first battery cell, the battery cells on both sides of the first battery cell along the preset direction are defined as the second battery cell, and the battery cell used for replacement is defined as the replacement battery cell. The solder strips on the replacement battery cell are defined as replacement solder strips; The rework method also includes: The replacement solder strip is wound onto a carrier; Multiple battery cells to be processed, multiple first connectors, and multiple second connectors are placed on the carrier, such that the multiple battery cells to be processed, the multiple first connectors, and the multiple second connectors are connected to the replacement solder strip; wherein, one first connector and one second connector are placed between two adjacent battery cells to be processed. Disconnect the replacement solder strip between the first connector and the second connector to form an assembly having the replacement battery cell, the first connector, and the second connector.

2. The battery replacement chip repair method according to claim 1, characterized in that, Both the first connector and the second connector are provided. The solder strip on one side of the replacement battery cell and the solder strip on one of the second battery cells are connected to the first connector. The solder strip on the other side of the replacement battery cell and the solder strip on the other second battery cell are connected to the second connector. Alternatively, multiple first connectors and multiple second connectors may be provided, with multiple first connectors interconnected and multiple second connectors interconnected. The solder strip on one side of the replacement battery cell and the solder strip on one of the second battery cells are respectively connected to multiple first connectors, and the solder strip on the other side of the replacement battery cell and the solder strip on another second battery cell are respectively connected to multiple second connectors.

3. The battery replacement chip repair method according to claim 1, characterized in that, The repair method includes: The solder strip connecting the first connector to one side of the replacement battery cell; The second connector is connected to the solder strip on the other side of the replacement battery cell; Move the replacement battery cell between the two second battery cells; Connect the first connector to the solder strip on one of the second battery cells, and connect the second connector to the solder strip on the other second battery cell; Alternatively, the rework method may include: Connect the first connector to the solder strip on one of the second battery cells; Connect the second connector to the solder strip on another second battery cell; Move the replacement battery cell between the two second battery cells; The first connector is connected to the solder strip on one side of the replacement battery cell, and the second connector is connected to the solder strip on the other side of the replacement battery cell; Alternatively, the rework method may include: Connect the first connector to the solder strip on one of the second battery cells; The solder strip connects the second connector to one side of the replacement battery cell; Move the replacement battery cell between the two second battery cells; Connect the first connector to the solder strip on the other side of the replacement battery cell, and connect the second connector to the solder strip on another second battery cell; Alternatively, there may be two of each of the first and second connectors; The rework method includes: Connect one of the first connectors to the solder strip on one of the second cells, and connect the other first connector to the solder strip on one side of the replacement cell; Connect one of the second connectors to the solder strip on the other second cell, and connect the other second connector to the solder strip on the other side of the replacement cell; Move the replacement battery cell between the two second battery cells; Connect the two first connectors and connect the two second connectors.

4. The battery replacement chip repair method according to claim 1, characterized in that, The rework method includes: The replacement battery cell is moved between the two second battery cells, with the replacement battery cell positioned above the first battery cell; The solder strip on one side of the replacement battery cell is connected to the solder strip on one of the second battery cells via a first connector, and the solder strip on the other side of the replacement battery cell is connected to the solder strip on another second battery cell via a second connector. The battery string is flipped over so that the replacement battery cell is located below the first battery cell; Disconnect the solder strips between the first battery cell and the two second battery cells.

5. The battery replacement chip repair method according to claim 1, characterized in that, Define the solder strip between the first battery cell and the two second battery cells as the pre-disconnected section; The rework method includes: The pre-disconnected section connecting the first connector to one side of the first battery cell; Connect the second connector to the pre-disconnected section on the other side of the first battery cell; Disconnect the pre-disconnection segment from the first battery cell, and the first connector and the second connector are respectively connected to the second battery cell through one of the pre-disconnection segments; Move the replacement battery cell between the two second battery cells; The first connector is connected to the solder strip on one side of the replacement battery cell, and the second connector is connected to the solder strip on the other side of the replacement battery cell.

6. The battery replacement chip repair method according to any one of claims 1 to 5, characterized in that, The solder strip between the first battery cell and the two second battery cells is defined as a pre-disconnection section, the end of the pre-disconnection section connected to the first battery cell is defined as the first connection end, and the end of the pre-disconnection section connected to the second battery cell is defined as the second connection end; The rework method also includes: Disconnect the first connection end from the first battery cell so that the length of the pre-disconnected segment meets the preset length.

7. The battery replacement chip repair method according to claim 1, characterized in that, The replacement solder strips include positive electrode solder strips and negative electrode solder strips, which are alternately distributed; Disconnecting the replacement solder strip between the first connector and the second connector includes: Disconnect the positive electrode solder strip and the negative electrode solder strip between the first connector and the second connector; Disconnect the positive electrode solder strip between the first connector and the battery cell to be processed, and disconnect the negative electrode solder strip between the second connector and the battery cell to be processed.

8. A method for repairing battery replacement cells, characterized in that, The battery string includes multiple battery cells and a group of solder ribbons arranged on the multiple battery cells. The multiple battery cells are arranged in a preset direction, and the group of solder ribbons extends in the preset direction. The group of solder ribbons connects the multiple battery cells, and the group of solder ribbons includes multiple solder ribbons. The battery cell that needs to be repaired in the battery string is defined as the first battery cell, and the first battery cell is located at the beginning and / or end of the battery string. The battery cell connected to the first battery cell is defined as the second battery cell, and the battery cell used for replacement is defined as the replacement battery cell. The repair method includes: Disconnect the solder strip between the first battery cell and the second battery cell; Move the replacement battery cell to one side of the second battery cell; The solder strips of the replacement battery cell are connected to the solder strips on the second battery cell via a first connector, wherein the first connector is conductive; The solder strips on the replacement battery cell are defined as replacement solder strips; The rework method also includes: The replacement solder strip is wound onto a carrier; Multiple battery cells to be processed, multiple first connectors, and multiple second connectors are placed on the carrier, such that the multiple battery cells to be processed, the multiple first connectors, and the multiple second connectors are connected to the replacement solder strip; wherein, one first connector and one second connector are placed between two adjacent battery cells to be processed. Disconnect the replacement solder strip between the first connector and the second connector to form an assembly having the replacement battery cell, the first connector, and the second connector.

9. A battery replacement cell repair device, applicable to the repair method as described in any one of claims 1 to 8, characterized in that, The repair device includes: A rework platform, wherein the rework platform is used to place the battery string; A cutting mechanism for disconnecting the solder strip between the first battery cell and two second battery cells; A moving mechanism for moving replacement battery cells and connectors; A connecting mechanism for connecting the second battery cell to the replacement battery cell via the connector.

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