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Button cell and electronic equipment

A technology for button batteries and electronic equipment, which is applied to batteries, battery pack components, battery boxes/jackets, etc., and can solve problems such as the inability of gas to be discharged

Active Publication Date: 2020-08-11
AAC TECH NANJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To solve the technical problem that the gas generated inside the button battery cannot be discharged when the button battery is abnormally charged and discharged or the positive and negative electrodes are short-circuited

Method used

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

Examples

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0026] The button battery 10 provided by the embodiment of the present invention is used to provide electric energy, especially for powering wearable electronic devices; of course, in other embodiments of the present invention, the button battery 10 can also be used to supply power for other electronic devices, here Not uniquely limited.

[0027] please combine Figure 1 to Figure 10 , the button battery 10 provided by the present invention will now be described. A button battery 10 includes a casing 100 and a battery body 200 . In this embodiment, the battery body 200 generates electrical energy through electrochemical action. Specifically, the housing 100 includes a first housing 110, a second housing 120 and an insulator 130 electrically isolating the first housing 110 and the second housing 120, the first housing 110, the second housing 120 and t...

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Abstract

The invention provides a button cell and electronic equipment. The button cell comprises: a shell provided with a first accommodating cavity; and a battery body accommodated in the first accommodatingcavity, wherein a first through hole communicated with the first accommodating cavity is formed in the shell, a cover body is arranged in the first accommodating cavity, is used for sealing the firstthrough hole, and is provided with a second through hole, the second through hole is sealed through an explosion-proof membrane, the explosion-proof membrane can be melted at a preset temperature orbroken at a preset pressure so as to communicate the first accommodating cavity with the first through hole through the second through hole, and the projection of the first through hole on the cover body in the axis direction of the first through hole does not coincide with the explosion-proof membrane. According to the invention, the explosion-proof membrane can be melted at a preset temperatureor broken at a preset pressure so as to ensure that the explosion-proof membrane is melted or broken when the button cell is charged and discharged abnormally or the positive electrode and the negative electrode are short-circuited, and gas in the first accommodating cavity can pass through the second through hole and be exhausted from the first through hole.

Description

【Technical field】 [0001] The invention relates to the technical field of batteries, in particular to a button battery and electronic equipment with safety air holes. 【Background technique】 [0002] With the development of electronic devices, especially wearable electronic devices, batteries are required to be more miniaturized. Therefore, the frequency of use of button batteries as miniaturized batteries is increasing. [0003] A button battery is also called a button battery, which includes a casing and a battery body housed in the casing. When the button battery is abnormally charged and discharged or the positive and negative electrodes are short-circuited, the temperature inside the casing will rise sharply, and the gas generated by the battery body will cause the internal pressure of the casing to increase, the casing will expand, and eventually the button battery will explode and cause a safety accident. [0004] Therefore, it is necessary to provide a button battery ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/12H01M2/02H01M2/08
CPCH01M2220/30H01M50/109H01M50/183H01M50/3425Y02E60/10
Inventor 张健何家勇徐斌
Owner AAC TECH NANJING
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