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Soft package lithium battery and airtightness detection method thereof

A soft-pack lithium battery and battery case technology, which is applied in the manufacture of lithium batteries, non-aqueous electrolyte batteries, and electrolyte batteries, can solve the problems of easy leakage judgment and low detection accuracy.

Pending Publication Date: 2021-03-23
HUNAN HONGYI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Based on this, it is necessary to provide a soft-pack lithium battery with high detection accuracy and its airtight detection method in view of the problems of low detection accuracy and easy misjudgment in the existing soft-pack lithium battery leak detection method

Method used

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  • Soft package lithium battery and airtightness detection method thereof
  • Soft package lithium battery and airtightness detection method thereof

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Embodiment Construction

[0019] In order to facilitate understanding of the present invention, the present invention will be described more fully described with reference to the related drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms, and is not limited to the embodiments described herein. Conversely, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thoroughly.

[0020] All techniques and scientific terms used herein are identical to those skilled in the art, unless otherwise defined. The terms used herein in the specification of the present invention are intended to describe specific embodiments, and is not intended to limit the invention. The terms "and / or" as used herein include any and all combinations of one or more related list items.

[0021] When the positional relationship is described, it can be reflected in oth...

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Abstract

The invention relates to a soft package lithium battery and an air tightness detection method thereof. The soft package lithium battery comprises a battery shell, a core package and an air bag; the core package is arranged in the battery shell; the core package comprises a positive pole lug and a negative pole lug which are arranged at intervals; the positive pole lug and the negative pole lug both extend to the outside of the battery shell; and the air bag is used for operably releasing detected gas, is arranged in the battery shell and is positioned between the positive pole lug and the negative pole lug. According to the soft package lithium battery and the airtightness detection method thereof provided by the invention, the detected gas in the gas bag is released into the battery shellby breaking the gas bag; then airtightness detection is carried out through gas detection equipment, so that a result of the packaging effect of the soft package lithium battery can be directly obtained, the detection precision is high, and missed judgment is avoided.

Description

Technical field [0001] The present invention relates to the field of battery sealing properties, and more particularly to a soft-envelope lithium battery and a hermetic detection method thereof. Background technique [0002] Soft boiler lithium battery is a common lithium battery with good safety performance, light weight, large capacity, small internal resistance, and flexible shape design. [0003] The internal chemical system of lithium batteries is active, very easy to react with the outside of moisture and air, resulting in battery performance degradation or failing, so the gas-tightness is critical to the reliability and safety of lithium batteries. How to effectively detect the airtightness of the soft bag lithium battery, ensuring that the packaging decisions will not flow into the consumer market, which is very important. [0004] The leak detection method of existing soft boiled lithium batteries cannot guarantee the airtightness of the soft boiler battery by the shortc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/052H01M10/058G01M3/02
CPCH01M10/052H01M10/058G01M3/02Y02E60/10Y02P70/50
Inventor 胡忠汉
Owner HUNAN HONGYI TECH CO LTD