A kind of structure and assembly method of lithium polymer battery

Abstract

The invention provides a structure and assembly method of a lithium polymer battery, including installing the battery cell into a plastic frame shell through a protective plate, specifically the following steps: ① opening four rectangular holes at the end of the plastic frame shell and Two notches, set four trapezoidal buckles protruding outward in the width direction of the rectangular protective plate, set two rectangular nickel blocks on the surface of the protective plate, set positive and negative pole ears on the battery core, ② protrude the protective plate The four trapezoidal buckles are snapped into the corresponding four rectangular holes on the plastic shell to realize the fixed connection between the protective plate and the shell. The ears are respectively covered on the two rectangular nickel blocks on the protective plate, and then welded by spot welding. ④ The battery core after spot welding is bent 90 degrees, installed in the plastic frame shell, and assembled into a lithium polymer battery . The good product rate of the invention is increased from 95% to 99.8%, and the assembly efficiency is increased by about 220%.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a structure and an assembly method of a lithium polymer battery. Background technique [0002] In recent years, lithium polymer batteries have been widely used in digital products, mobile phones and other electronic products. The structure design of existing lithium polymer batteries makes its assembly method as follows: spot welding lithium polymer batteries and protective plates, Then put the spot-welded protective plate and battery cells into the frame plastic shell. With this assembly structure and assembly method, because the protective plate and the battery core have been connected in performance, it is very easy to pull the power off during the process of loading into the shell. The tabs of the core and the sealing area of ​​the battery are damaged, so that there are performance and safety hazards after the battery is assembled, which will affect the quality of the batte...

AI Technical Summary

Problems solved by technology

[0002] In recent years, lithium polymer batteries have been widely used in digital products, mobile phones and other electronic products. The structure design of existing lithium polymer batteries makes their assembly method as follows: spot welding lithium polymer batteries and protective plates, Then put the spot-welded protective plate and battery cells into the frame plastic shell. With this assembly structure and method, because the protective plate and the battery core have been connected in performance, it is very easy to pull the power off during the process of loading into the shell. The tabs of the core and the sealing area of ​​the battery are damaged, so that there are performance and safety hazards after the battery is assembled, thus affecting the quality of the battery

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