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Soft package lithium battery with welding-free structure

A soft-pack lithium battery, welding-free technology, applied in non-aqueous electrolyte battery, electrolyte battery manufacturing, sustainable manufacturing/processing and other directions, can solve the problems of easily damaged battery tabs, difficult maintenance process, etc., to avoid welding process , The effect of reducing the use and maintenance costs and reducing the defective rate

Active Publication Date: 2016-08-17
HUATING HEFEI POWER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] It can be seen from its written records and the drawings in the manual that the battery cells are connected by a fixed method, which is very difficult in the follow-up maintenance process, and it is very easy to damage the battery cells and their tabs.

Method used

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  • Soft package lithium battery with welding-free structure
  • Soft package lithium battery with welding-free structure
  • Soft package lithium battery with welding-free structure

Examples

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Embodiment Construction

[0052] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is some embodiments of the present invention, but not all of them. Based on the implementation manners in the present invention, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the implementation manners in the present invention, all other implement...

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Abstract

The invention provides a soft package lithium battery with a welding-free structure and belongs to the field of batteries. The soft package lithium battery comprises a plurality of cores which are sequentially connected through current collecting strips. The cores comprise lugs. A containing space is formed between every two adjacent cores. Each current collecting strip comprises a plurality of current collecting elements arranged at intervals, wherein the distribution direction of the current collecting elements is the length direction of the current collecting strip, and the extending direction of each current collecting element is perpendicular to the length direction of the current collecting strip. The current collecting elements are clamped into the containing spaces and connected with the lugs. The soft package lithium battery is compact in structure, the welding procedure in the bunching process is omitted, bunching efficiency is improved, and bunching cost is reduced. Besides, the yield can be increased, and the defective rate is reduced. In the later maintenance process, detachment can be completed in simple steps, subsequent maintenance is extremely convenient, and use and maintenance cost is reduced.

Description

technical field [0001] The invention relates to the field of batteries, in particular to a soft-pack lithium battery with a welding-free structure. Background technique [0002] Soft pack lithium battery is one of the battery types commonly used in many fields. Widely used in electric vehicles, hybrid vehicles and other machinery and equipment. The soft-pack lithium battery generally includes a plurality of connected battery blocks or cells, which are connected through certain connectors or processes to form an integral soft-pack lithium battery. [0003] Traditional soft-pack lithium batteries are generally connected by welding when connecting multiple cells, which may be laser welding, resistance welding or ultrasonic welding, etc. The cells connected in this way belong to the fixed connection method. In the actual welding process, due to welding technology and equipment problems, problems such as poor welding (including defects such as virtual welding and welding penetr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/058
CPCH01M10/058Y02E60/10Y02P70/50
Inventor 李德连张亮袁承超周鹏
Owner HUATING HEFEI POWER TECH
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