Circular soft package polymer lithium ion battery and assembly method

Abstract

The invention discloses a circular soft package polymer lithium ion battery. The lithium ion battery comprises a circular soft package polymer battery cell, a positive wire assembly, a negative wire assembly, an injection molding support and a side edge protection adhesive tape, wherein the circular soft package polymer battery cell comprises a body, upper and lower ends of the body are respectively provided with an anode front edge and a cathode front edge, a positive tab and a negative tab are respectively connected with the upper and lower ends of the body, a top surface and a bottom surface of the body are respectively provided with a positive tab adhesive and a negative tab adhesive, a sealing edge is wrapped with the side edge protection adhesive tape, the negative tab is welded withthe negative wire assembly, the positive tab is welded with the positive wire assembly, the positive wire assembly is bonded with the support protection adhesive tape and is clamped at one end of theinjection molding support, and the cathode wire assembly is clamped at the other end of the injection molding support. The lithium ion battery is advantaged in that by introducing the design of the injection molding support and the battery fixing clamp into the battery assembly structure, reliability of the assembly structure is powerfully ensured, the large-area direct contact between hands of an operator and a battery is avoided, and the yield is greatly improved.

Description

technical field [0001] The invention relates to the technical field of round soft-pack polymer lithium-ion batteries, in particular to a round soft-pack polymer lithium-ion battery and an assembly method. Background technique [0002] At present, lithium-ion batteries are increasingly used in a variety of portable mobile devices, such as electronic pens, Bluetooth headsets, and electronic cigarettes. For some hand-held or portable mobile devices, in the past, due to the large battery, it was easier to operate. During the assembly process, the operator needs to directly contact the battery with his hands in every process. However, due to the development trend of equipment miniaturization, it is necessary to require Batteries are getting smaller and smaller, which will inevitably cause difficulties in assembly. If the previous method is continued: the hands of operators in each process need to be in direct contact with a large area of ​​the battery, which will inevitably cause...

AI Technical Summary

Problems solved by technology

For some hand-held or portable mobile devices, in the past, due to the large battery, it was easier to operate. During the assembly process, the operator needs to directly contact the battery with his hands in every process. However, due to the development trend of equipment miniaturization, it is necessary to require Batteries are getting smaller and smaller, which will inevitably cause difficulties in assembly. If the previous method is continued: the hands of operators in each process need to be in direct contact with a large area of ​​the battery, which will inevitably cause scratches and pits on the surface of the battery , leakage and other risks, seriously reducing the yield rate of the round soft-packed polymer lithium-ion battery that is processed and assembled (pack), and the economic benefits of the battery manufacturer are damaged

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