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Charging button-type battery

A button battery and battery technology, which is applied in secondary battery manufacturing, battery pack parts, circuits, etc., can solve the problems of no explosion-proof safety valve, explosion, etc., prevent charging equipment and personnel from being injured, and increase safety Effect

Inactive Publication Date: 2010-10-13
王立志
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, rechargeable button batteries at home and abroad do not have an explosion-proof safety valve. When the internal pressure is greater than the sealing pressure of the button battery, usually 40 kg, an explosion will occur.

Method used

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  • Charging button-type battery
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Embodiment Construction

[0010] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0011] The present invention consists of a battery body 5 and a cap, wherein the cap consists of a cap chassis 1, an explosion-proof ball 3 and a nickel-plated steel cap 4, wherein an explosion-proof safety valve air outlet 2 is opened on the cap chassis 1, and an explosion-proof safety valve air outlet 2 is provided An explosion-proof ball 3 and a nickel-plated steel cap 4 are pressed, and the explosion-proof ball 3 is arranged inside the nickel-plated steel cap 4 .

[0012] The anti-explosion ball 3 adopts rubber body or leaf spring among the present invention, and other elastic materials. The battery body consists of a battery case, a sealing ring, a spring bow, positive and negative electrodes, an electrolyte and a diaphragm.

[0013] When the pressure is greater than the explosion-proof opening pressure of the explosion-proof valve of th...

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Abstract

The invention relates to a charging button-type battery with an explosion-proof device, which consists of a battery body and a cap, wherein the cap consists of a cap chassis, an explosion-proof ball and a nickel-plated steel cap, the cap chassis is provided with an explosion-proof safety valve air outlet hole, the explosion-proof ball and the nickel-plating steel cap are arranged on the explosion-proof safety valve air outlet hole, and the explosion-proof ball is arranged inside the nickel-plating steel cap. By adopting the nickel-plating steel cap to compress the explosion-proof ball towards the explosion-proof safety valve air outlet hole, when the pressure is more than the explosion-proof opening pressure of a battery explosion-proof valve, the pressure pushes the explosion-proof ball in the cap, so the cap is opened to discharge the air, and when the pressure is decreased to be lower than the critical value, the cap is re-closed through the elasticity of the explosion-proof ball, so the battery is free from explosion because of the large pressure. Therefore, the injure of the battery on the charging device and the personnel, caused by the explosion during the manufacturing and application process, can be prevented, and the safety of the charging button-type battery can be improved.

Description

technical field [0001] The invention relates to a rechargeable button battery, in particular to a rechargeable button battery with an explosion-proof device. Background technique [0002] Button battery, also called button battery, refers to a battery with a shape and size like a small button. Generally speaking, the diameter is larger and the thickness is thinner (compared to cylindrical batteries such as No. 5 AA batteries on the market). Button batteries are Batteries are classified from the appearance, and the corresponding battery classifications include cylindrical batteries, square batteries, and special-shaped batteries. Button batteries are small in size, with a diameter ranging from 4.8mm to 30mm and a thickness ranging from 1.0mm to 7.7mm; they are generally used as backup power for various electronic products, such as computer motherboards, electronic watches, electronic dictionaries, electronic scales, memory cards , remote control, electric toys, etc. [0003...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/04H01M2/04H01M2/12H01M50/153H01M50/325
CPCY02E60/10Y02P70/50
Inventor 王立志
Owner 王立志
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