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A kind of preparation method of lithium battery overload self-protection tab

A self-protection, lithium battery technology, used in batteries, battery pack components, circuits, etc.

Active Publication Date: 2018-11-09
格远电子科技(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Then, the existing common battery tabs cannot meet its needs very well, and special structural design and improvement are necessary.

Method used

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  • A kind of preparation method of lithium battery overload self-protection tab
  • A kind of preparation method of lithium battery overload self-protection tab
  • A kind of preparation method of lithium battery overload self-protection tab

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Embodiment Construction

[0018] The technical solution of the present invention will be further described below in conjunction with the drawings and embodiments.

[0019] See Figure 3 ~ Figure 4 As shown, the overload self-protection tab of the lithium battery of the present invention is the same as the prior art in that it also includes a sheet-shaped metal conductor 1 and a solid ribbon-shaped polymer insulating film 2 heat-sealed on the metal conductor 1 laterally. The difference is that the two sides of the metal conductor 1 are respectively provided with a triangular slot 3 transversely, and the two triangular slots 3 are arranged in a staggered manner. The metal conductor 1 between the two triangular slots 3 forms an obliquely arranged overload Auto-fuse carrier fluid 4.

[0020] As a preferred embodiment, the two triangular grooves 3 have the same size.

[0021] As another preferred embodiment, the polymer insulating film heat-seals the two triangular grooves 3 and the carrier fluid 4 therein.

[00...

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PUM

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Abstract

The invention discloses a preparation method of a lithium battery overload self-protection tab. By performing special-shaped treatment on the metal conductor, there is a carrier fluid in the middle of the metal conductor. Through its function as a "fuse", when the main equipment is overloaded, It can be automatically fused, so as to play a role of self-protection carrier. Due to the way of opening triangular grooves on both sides of the metal conductor, the oblique carrier fluid formed can make the carrier fluid reach the width and length required for fusing without changing the entire length of the metal conductor.

Description

Technical field [0001] The invention relates to a foil tape processing tool, and more specifically, to a preparation method of a lithium battery overload self-protecting tab. Background technique [0002] Ordinary battery leads (also known as tabs, which are collectively referred to as tabs below, divided into positive and negative poles. They are usually classified according to the material of the tabs, such as aluminum tabs, nickel-plated copper tabs, nickel tabs, etc.) It is designed to include a sheet-shaped metal conductor 1 and a strip-shaped polymer insulating film 2. The polymer insulating film 2 is a solid strip material that is heated at 140 to 160 degrees to bond with the metal conductor (usually called heat sealing) ). Such tabs are usually used in lithium batteries for small electrical appliances or electronic products: such as model airplanes, power tools, etc. However, for some specific purpose lithium batteries, due to the characteristics of the main equipment, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/26H01M50/531
CPCH01M2200/00H01M50/531Y02E60/10
Inventor 张独兵
Owner 格远电子科技(上海)有限公司