Manufacturing process of L-shaped laminated lithium ion battery core package

Abstract

The invention relates to a manufacturing process of an L-shaped laminated lithium ion battery core package, which comprises the following steps of coating to obtain a pole piece, positioning, slittingto obtain a plurality of L-shaped single pieces positioned on the same pole piece, stacking with an isolation layer, and cutting to obtain a plurality of L-shaped laminated lithium ion battery core packages at the same time. According to the manufacturing process disclosed by the invention, positioning and slitting are carried out on the pole piece, the effect of producing a plurality of L-shapedlaminated lithium ion battery core packages at the same time is achieved, the process route is simple, the machining mode is high in operability, the production efficiency is high, the cost is low, large-batch efficient production and manufacturing of the laminated battery core packages can be realized conveniently, the manufacturing process stability is good, the quality of the electrode unit can be effectively improved, winding is avoided, the safety of the battery is improved, the shape of the battery core package is controllable, and the problems of high processing difficulty and low production efficiency of batteries with irregular shapes can be solved.

Description

technical field [0001] The invention belongs to the field of lithium-ion batteries, and relates to a manufacturing process of an L-shaped laminated lithium-ion battery core pack, in particular to a manufacturing process capable of simultaneously producing a plurality of L-shaped laminated lithium-ion battery core packs. Background technique [0002] As an electrochemical energy storage system, lithium-ion batteries have become an indispensable and important technology in the development and utilization of new energy due to their outstanding advantages. Rechargeable lithium-ion batteries are due to their high energy density, long cycle life and Environmentally friendly properties have been widely researched and applied. [0003] At present, with the wide variety of electrical appliances, the battery compartments of electrical appliances have irregular structures. In order to match the battery compartments of electrical appliances, conventional square and cylindrical lithium b...

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Problems solved by technology

[0006] The object of the present invention is to provide a manufacturing process of L-shaped laminated lithium-ion battery packs, the manufacturing process includes coating to obtain pole pieces, positioning and cutting to obtain multiple L-shaped single pieces on the same pole piece , and then stacked with the insulating layer and cut to obtain a plurality of L-shaped laminated lithium-ion battery packs at the same time; the manufacturing process of the present invention realizes the simultaneous production of multiple L-shaped lithium-ion battery packs by positioning and slitting on the pole piece The effect of laminated lithium-ion battery core packs, and the process route is simple, the processing method is highly operable, the production efficiency is high, and the cost is low, which is conducive to the realization of large-scale and efficient production of laminated battery core packs, and its manufacturing process is stable. , can effectively improve the quality of the electrode unit, help to avoid winding, improve the safety of the battery, and the shape of the battery core package can be controlled, which solves the problem of difficult processing and low production efficiency of irregular shaped batteries

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