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Sealing element, manufacturing method thereof and battery

A technology for sealing parts and batteries, applied in sealing materials, battery pack components, circuits, etc., can solve problems such as poor battery safety, and achieve the effects of improving safety, reducing manufacturing costs, and being less susceptible to thermal deformation.

Pending Publication Date: 2021-04-16
ZHUHAI COSMX BATTERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of the above problems, the present invention provides a sealing member, which is applied to the battery, which can effectively improve the sealing performance of the battery and avoid problems such as poor battery safety caused by poor sealing performance.

Method used

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  • Sealing element, manufacturing method thereof and battery
  • Sealing element, manufacturing method thereof and battery
  • Sealing element, manufacturing method thereof and battery

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Embodiment Construction

[0036] One aspect of the present invention provides a seal, such as figure 1 As shown, it includes: a first metal layer 11 , a sealing insulating layer 12 and a second metal layer 13 which are sequentially stacked. The present invention arranges metal layers on both sides of the sealing insulating layer, so that the two surfaces of the sealing member have good consistency, avoiding the risk of liquid leakage after the sealing member encapsulates the battery, has good sealing performance and service life, and is beneficial to Improve the quality of battery safety, cycle and service life.

[0037] In the present invention, the sealing member can be used especially between the positive electrode cover and the housing of the battery to realize the sealed and insulating connection between the positive electrode cover and the housing. The positive electrode cover and the housing are generally made of metal. Therefore, the sealing member of the present invention has two sides The me...

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Abstract

The invention provides a sealing element, a manufacturing method thereof and a battery. The sealing element comprises a first metal layer, a sealing insulating layer and a second metal layer which are sequentially stacked. The sealing element provided by the invention is applied to the battery, and the sealing performance of the battery can be effectively improved.

Description

technical field [0001] The invention belongs to the technical field of batteries, and in particular relates to a sealing member, a manufacturing method thereof and a battery. Background technique [0002] The inside of a chemical battery is a closed space, so the sealing is very important for the battery, so the seal is an important component of the battery. At present, rubber rings are mostly used as battery seals. However, such seals are usually thick and occupy the internal space of the battery, thereby reducing the energy density of the battery. Moreover, their sealing performance for the battery is also relatively limited, which may easily lead to battery electrolysis. Liquid leakage has a great impact on the safety of the battery. In addition, the production of conventional rubber ring-type seals is difficult, which also limits its application to a certain extent. Contents of the invention [0003] In view of the above problems, the present invention provides a seal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M50/15H01M50/164H01M50/188
CPCY02E60/10
Inventor 彭宁谢斌徐延铭
Owner ZHUHAI COSMX BATTERY CO LTD
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