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Laminated lithium battery top cover

A lithium battery, laminated technology, applied in the direction of battery cover/end cover, secondary battery, battery pack components, etc., can solve the problems of automation degree and safety impact limit bottleneck, etc., to facilitate automated production, small footprint , to achieve the effect of stability

Pending Publication Date: 2021-08-03
湖南领湃达志科技股份有限公司 +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Optimizing the internal structure of the battery is one of the effective ways to increase the energy density of the battery. With the increase of the mileage target of the electric vehicle, the advantages of the stacked multi-roll core and the longer square aluminum shell structure become more and more obvious, but the degree of automation of production and Security impact becomes limiting bottleneck

Method used

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  • Laminated lithium battery top cover
  • Laminated lithium battery top cover
  • Laminated lithium battery top cover

Examples

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Embodiment Construction

[0034] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0035] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments of the present invention,...

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Abstract

The invention belongs to the technical field of new energy batteries, and particularly relates to the field of laminated batteries, in particular to a laminated lithium battery top cover which is suitable for a duplex laminated lithium ion battery which is provided with tabs on two sides and is connected through side surfaces. After the foldable wing plates and the tabs are subjected to ultrasonic welding, the foldable wing plates can be bent by 90 degrees, the occupied volume of the bent connecting parts is very small, the internal space of the lithium ion battery can be greatly saved, and the space utilization rate is greatly improved. According to the invention, the space utilization rate and the energy density are greatly improved, the connection is safe and reliable, the assembly is simple and easy, the automatic production is convenient, and the method is suitable for the laminated lithium ion battery with the length of 10-300cm.

Description

technical field [0001] The invention belongs to the technical field of new energy batteries, relates to the technical field of laminated batteries, and in particular relates to a top cover of a laminated lithium battery. Background technique [0002] At present, lithium-ion batteries have been widely used in various fields involving energy storage, especially in the field of new energy electric vehicles. The energy density of lithium-ion batteries closely determines the mileage of electric vehicles. Optimizing the internal structure of the battery is one of the effective ways to increase the energy density of the battery. With the increase of the mileage target of the electric vehicle, the advantages of the stacked multi-roll core and the longer square aluminum shell structure become more and more obvious, but the degree of automation of production and Security implications become a limiting bottleneck. [0003] It can be seen from this that how to optimize the connection m...

Claims

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Application Information

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IPC IPC(8): H01M50/147H01M50/528H01M50/536H01M50/547H01M10/0525H01M10/0585
CPCH01M10/0525H01M10/0585Y02E60/10Y02P70/50
Inventor 唐进明曾阿军周盈王艳双游辉刘军卓鑫
Owner 湖南领湃达志科技股份有限公司
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