High-efficiency and high-rate lithium battery structure

Abstract

The invention relates to a high-efficiency and high-rate lithium battery structure, and is used for solving the problems that since a general lithium battery pole ear is used for conducting electric energy by welded pole columns, a welding process is difficult, the electrical conduction efficiency of a lithium battery is affected by welding spots and the discharging rate of the lithium battery is limited. The battery structure comprises a seal cover; electricity-taking pole ears are arranged below the seal cover, and the front end part of each electricity-taking pole ear passes through the seal cover and is located on the surface of the seal cover; each electricity-taking pole ear is wrapped with an insulating layer, and the front end part of each electricity-taking pole ear is exposed on the upper surface of the insulating layer located on the seal cover to form an external terminal. The battery structure has the advantages that the electricity-taking pole ears adopt integral design, the problem that a conventional lithium battery has process bottlenecks for welding the pole ears and the pole columns, the discharge rate of the lithium battery is increased, and the resistance and heat radiation conditions caused by the welding points during large current discharge are reduced. The electricity-taking pole ears are directly wrapped by the insulating layers of the pole ears, and the insulating layers of the pole ears have good sealing and insulation performance with the battery seal cover. The lithium battery structure has simple whole structure, reduces lithium battery manufacturing process, shortens the production time and reduces material costs.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a high-efficiency and high-rate lithium battery structure that does not require welding of tabs and reduces manufacturing processes, manufacturing time, and manufacturing costs. Background technique [0002] With the continuous improvement of society's energy-saving and environmental protection requirements, electric vehicles have become the development direction of modern automobile industry technology. The current power source of electric vehicles is mainly based on the way of storing electric energy. The technology of storing electric energy with the background of current science and technology is being updated day by day. Among them, lithium battery technology has become the main direction of electric vehicle storing electric energy due to its excellent performance. [0003] At present, the existing lithium battery power-taking method in the market is basically that the bat...

AI Technical Summary

Problems solved by technology

[0005] The present invention mainly solves the problems in the prior art that the tabs of the general lithium battery conduct electric energy through the welding pole, the welding process is difficult, the solder joints affect the conduction efficiency of the lithium battery, and the discharge rate of the lithium battery is limited, and it provides a tab that does not require welding. , reduce the production process, production time, production cost of high-efficiency high-rate lithium battery structure

In the present invention, the electrode ear is designed to be integrated, and there is no need to use poles to weld and connect the electrode ear at the lower part of the cover and the external terminal of the cover, which solves the problem of the existing lithium battery welding process bottleneck at these two places, and increases Improve the discharge rate of the lithium battery, reduce the resistance and heat caused by the welding point during high current discharge

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