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Lithium battery tab with overcurrent automatic-fusing function

A lithium battery and battery electrode technology, which is applied to battery components, circuits, electrical components, etc., can solve the problems of not being able to protect the battery, and achieve the effect of protecting the battery

Inactive Publication Date: 2016-04-13
JIANGMEN TUOLIAN ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the tabs of existing lithium batteries are generally acted by strip-shaped conductive strips with the same width. When the circuit is short-circuited, it is not easy to fuse and cannot protect the battery.

Method used

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  • Lithium battery tab with overcurrent automatic-fusing function
  • Lithium battery tab with overcurrent automatic-fusing function

Examples

Experimental program
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Effect test

Embodiment Construction

[0014] refer to figure 1 , a lithium battery tab with an over-current self-cutting function provided by the present invention includes a tab 1, one end of the tab 1 is connected to the external circuit of the battery cell, the other end is connected to the negative electrode of the battery, and the tab 1 The middle part of 1 is provided with more than one through hole 2 by drilling, and the through hole 2 in this embodiment is a round hole.

[0015] refer to figure 2 , another embodiment provided by this embodiment, its structure is the same as figure 1 The first embodiment is basically the same, except that the through hole 2 in this embodiment is a rectangular hole.

[0016] The tab of the lithium battery of the present invention opens a through hole 2 in the middle of the tab 1 by punching, so that the conductive part in the middle of the tab 1 is narrowed. When an excessive current passes through the tab 1 due to a short circuit, the tab The parts of the sheet 1 on bot...

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PUM

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Abstract

The invention discloses a lithium battery tab with an overcurrent automatic-fusing function. The lithium battery tab comprises a tab piece, wherein one end of the tab piece is connected to a cell external circuit while the other end of the tab piece is connected with a battery tab; and a through hole is formed in the middle of the tab piece in a punching manner. According to the lithium battery tab, the through hole is formed in the middle of the tab piece in the punching manner, so that a conductive part in the middle of the tab piece is thinned; and when overhigh current passes through the tab piece caused by short circuit, the parts on the two sides of the through hole can be fused in time so as to protect the battery.

Description

technical field [0001] The invention relates to the field of lithium batteries, in particular to a lithium battery tab with an overcurrent self-cutting function. Background technique [0002] The tabs of the lithium battery are responsible for connecting the battery electrodes and the external circuit of the battery cell. When the external circuit of the battery is short-circuited, if the tabs of the battery are disconnected in time, it can protect the inside of the battery from the influence of the external short circuit and protect the battery. role. However, the tabs of existing lithium batteries are generally served by strip-shaped conductive strips with the same width. When the circuit is short-circuited, it is not easy to fuse and cannot protect the battery. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the object of the present invention is to provide a lithium battery tab with an over-current self-cutting function. [...

Claims

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Application Information

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IPC IPC(8): H01M2/26H01M2/34H01M50/502H01M50/531
CPCH01M50/531H01M50/572Y02E60/10
Inventor 凌万秾张福年张霞
Owner JIANGMEN TUOLIAN ELECTRONICS TECH
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