a button battery

A button battery and battery assembly technology, applied in the direction of batteries, battery pack components, circuits, etc., can solve the problems of complex structure and complex structure design of button batteries, and achieve the effect of simple structure and avoiding overheating.

Active Publication Date: 2021-10-29
AAC TECH NANJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this type of button battery is more complicated in structural design, not only need to consider the mobile design of the positive and negative electrode shells, which often makes the structure of the button battery more complicated

Method used

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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 embodiment of the present invention provides a button battery, which not only can achieve the purpose of explosion protection, but also has a simpler structure.

[0027] In the embodiment of the present invention, please refer to Figure 1-3 , The button battery includes a positive electrode casing 100 , a negative electrode casing 200 , a battery assembly 300 , a positive electrode connector 400 , a negative electrode connector 500 and a trigger assembly 600 .

[0028] Wherein, the positive electrode casing 100 and the negative electrode casing 200 are both made of metal materials, which are used as the exposed positive electrode and negative electrode of the button battery, and are used to form a connection with the electronic device, and then provide power for the electronic device. This application does not limit the positive electrode c...

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Abstract

The present invention provides a button battery, including a positive electrode casing, a negative electrode casing, a battery assembly, a positive electrode connecting piece, a negative electrode connecting piece and a trigger assembly, between the positive electrode connecting piece and the positive electrode casing and between the negative electrode connecting piece and the At least one of the negative electrode shells is formed with a trigger cavity, and a trigger component is arranged in the trigger cavity, and the trigger component is used for displacement when the temperature rises, so that the trigger cavity is switched from the on state to the off state. open state. The button battery of the present invention can avoid that when the internal temperature of the battery rises, the battery will continue to be used and become hot, or even explode. When designing, it is only necessary to build a trigger cavity and set a trigger component in the trigger cavity, so that the structure of the button battery can be integrated in the whole more simple.

Description

【Technical field】 [0001] The invention relates to the technical field of batteries, in particular to a button battery. 【Background technique】 [0002] Button batteries are widely used in various miniature electronic products because of their small size. Existing button batteries generally consist of a metal casing (generally including a positive electrode casing and a negative electrode casing) and a battery body arranged inside the metal casing. The battery body and metal An electrical connection is formed between the shells. The button battery of this structure type has the battery body and the metal casing always connected, once the internal temperature of the battery rises, it is very easy to cause the battery to explode. [0003] Based on this, some button batteries have made certain improvements, such as opening a pressure relief port on the metal casing. When the internal temperature of the battery increases, the pressure inside the battery increases accordingly, and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M50/581
CPCH01M2200/10H01M2220/30H01M50/581Y02E60/10
Inventor 张健何家勇徐斌
Owner AAC TECH NANJING
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