Soft-packed lithium cell combination single lead structure and connection method thereof

Abstract

The invention discloses a soft-packed lithium cell combination single lead structure, which comprises a cell and a shell, wherein the shell is arranged outside the cell; the top of the cell is provided with the cell leads; connection blocks are symmetrically fixedly connected to two ends of the top of the shell and located at one sides of the cell leads; and the top of each cell lead is provided with an aluminum block. As the aluminum blocks are arranged on the shell, positive and negative electrodes are formed; as the linkage relationship among the connection block, the aluminum blocks, an insulating connection plate, a fixing block, a mounting groove, a through groove, a first spring, a limiting block, a limiting groove, a connection rod, a limiting rod, a second spring, a positioning block and a positioning hole is arranged, when the aluminum blocks are mounted, the operation is simple and convenient; and when the connection rod, the limiting rod and the second spring are arranged,when the limiting block and the limiting groove are buckled, through the relationship between the limiting rod and the second spring, the limiting block is fixed, separation of the limiting block andthe limiting groove is avoided, the operation is simple and convenient, and assembly and disassembly are convenient.

Description

Technical field [0001] The invention relates to the technical field of lithium batteries, in particular to a soft-packed lithium battery core combined monomer tab structure. At the same time, the present invention also relates to a method for connecting the soft-packed lithium battery core combined monomer tab structure. Background technique [0002] Lithium battery is a type of battery that uses lithium metal or lithium alloy as the negative electrode material and uses non-aqueous electrolyte solution. The combination of two soft-pack lithium batteries into a single cell has become a very important part of the new energy manufacturing industry. The connection between the inner tabs of the battery cell is a crucial part of the new energy lithium battery manufacturing industry. As one of the core technologies of lithium battery processing, the current industry’s general practice is to fold the tabs of the two battery cells separately. The electrode tabs of the two batteries are o...

AI Technical Summary

Problems solved by technology

[0002] Lithium battery is a type of battery that uses lithium metal or lithium alloy as the negative electrode material and uses a non-aqueous electrolyte solution. The combination of two soft-pack lithium batteries into a battery cell has become a very important part of the new energy manufacturing industry. The connection between the tabs in the cell monomer is a crucial link in the new energy lithium battery manufacturing industry. As one of the core technologies for lithium cell processing, the current industry practice is to fold the tabs of the two cells separately. Edge, make the electrode tabs of the two batteries overlap, and through the mechanical connection method, the tabs of the two batteries are tightly connected to achieve the purpose of conduction. At present, manual operation is mostly used, and the connection is firm. Through welding and structural glue It is inconvenient to connect the aluminum block with the tab of the battery cell, and it is inconvenient to replace and repair the aluminum block, so it is necessary to design a soft-packed lithium battery cell combined single tab structure and its connection method to solve this problem

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