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Pouch battery

A soft-pack battery and battery cavity technology, which is applied to secondary batteries, battery pack components, circuits, etc., to achieve the effect of improving safety performance and cycle life

Pending Publication Date: 2017-03-08
HEBEI YINLONG NEW ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Based on this, it is necessary to provide a pouch battery that can solve the problem of flatulence in view of the flatulence problem existing in the current pouch battery

Method used

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Embodiment Construction

[0023] In order to make the purpose, technical solution and advantages of the present invention clearer, the pouch battery of the present invention will be further described in detail through the following examples and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0024] see figure 1 and figure 2 As shown, the present invention provides a pouch battery, including a battery cell 100, and a packaging film 200 coated on the outside of the battery cell 100. The packaging film 200 forms a battery cavity 210 for accommodating the battery cell 100 and at least one airbag 220. The battery The cavity 210 communicates with the airbag 220 through the air hole 231 . When gas is generated inside the battery cell 100 due to an abnormal chemical reaction, the gas can enter the airbag 220 through the air hole 231, which can effectively ...

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Abstract

The invention provides a pouch battery, comprising a cell and a packing film covering the cell; the packing film is provided with a battery chamber for receiving the cell and at least one gas receiver; the battery chamber is communicated with the air receivers through gas holes. When the cell produces gas inside due to abnormal chemical reactions, the gas may pass through the gas holes into the gas receivers; bulging of the pouch battery due to overcharge, overdischarge, high temperature and the like can be effectively improved, and battery safety and longer cycle life are provided for the battery.

Description

technical field [0001] The invention relates to the technical field of lithium batteries, in particular to a soft pack battery. Background technique [0002] Overcharge or overdischarge of the pouch battery, and over-rate discharge will produce flatulence. The polymer lithium-ion battery is packaged with aluminum-plastic composite film. When gas is generated inside the battery due to abnormal chemical reactions, the packaging bag will be filled. , The battery cell bulges, the performance of the battery cell will be severely damaged, the battery cannot be used normally, and it will bring safety hazards. Contents of the invention [0003] Based on this, it is necessary to provide a pouch battery capable of solving the problem of flatulence in view of the gas problem existing in the current pouch battery. [0004] Above-mentioned purpose realizes through following technical scheme: [0005] A soft pack battery, comprising an electric core, and a packaging film covering the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/12H01M10/0525H01M50/35
CPCH01M10/0525H01M50/35Y02E60/10
Inventor 刘金良高峰
Owner HEBEI YINLONG NEW ENERGY
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