Button cell and electronic equipment

A button-type battery and electronic equipment technology, applied in battery pack parts, circuits, electrical components, etc., can solve the problems of welding sealing effect, button-type battery safety, poor stability, etc., and achieve the effect of good stability

Pending Publication Date: 2021-06-18
ZHUHAI COSMX BATTERY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, in the above-mentioned liquid injection operation through the liquid injection port, it is easy to generate electrolyte residue near the liquid injection port on the housing, and th

Method used

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  • Button cell and electronic equipment
  • Button cell and electronic equipment
  • Button cell and electronic equipment

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Embodiment Construction

[0029] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the Some, but not all, embodiments are disclosed. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] The existing button-type battery has the technical problem of poor safety and stability of the button-type battery due to poor welding sealing performance when the sealing sheet and the metal shell are welded. This is because, when the electrolyte is injected into the metal case through the liquid injection port, part of the electrolyte will remain near the welding ...

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Abstract

The invention provides a button cell and electronic equipment. The button cell comprises a shell, an electrode assembly and a sealing piece, wherein the shell is internally provided with a containing cavity, the electrode assembly is located in the containing cavity, and the shell is provided with a liquid injection hole used for injecting electrolyte into the containing cavity; a concave part is arranged on the outer surface of the shell, is concave towards the inner side of the accommodating cavity, is positioned at an orifice of the liquid injection hole and is communicated with the liquid injection hole; the sealing piece is welded to the outer side of the shell so as to seal and cover the concave part and the liquid injection hole. The button cell and the electronic equipment provided by the invention are relatively high in safety and reliability.

Description

technical field [0001] The present invention relates to the technical field of batteries, in particular to a button battery and an electronic device. Background technique [0002] With the development of the economy and the advancement of science and technology, smart products are becoming more and more lightweight and miniaturized, and button batteries that can be recharged and recharged are gradually applied to various fields of people's daily life. [0003] The existing button battery includes a metal casing, a positive electrode sheet, a negative electrode sheet, a positive electrode tab, a negative electrode tab and other structures arranged in the metal housing. The shell is also provided with a liquid injection port for injecting electrolyte, and a sealing member is covered on the liquid injection port. During the production process, the electrolyte is injected into the metal shell through the liquid injection port, and the sealing member is welded to the shell. body...

Claims

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Application Information

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IPC IPC(8): H01M50/109H01M50/536H01M50/636
CPCY02E60/10
Inventor 陈龙云曾玉祥卫志达王永旺王智峰许德胜林鸿凯
Owner ZHUHAI COSMX BATTERY CO LTD
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