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Button cell and covering method of same

A button-type battery, battery cell technology, applied in secondary batteries, battery pack parts, non-aqueous electrolyte batteries, etc., can solve the problems of battery leakage, damage, mold extrusion deformation, etc., to avoid leakage and short circuit , the effect of improving the service life

Inactive Publication Date: 2019-05-14
四川福来威新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the above operation, due to the use of physical deformation sealing, the mold will be squeezed, deformed and damaged during long-term use, which will lead to poor sealing of the battery cover, battery leakage, short circuit and other undesirable phenomena.

Method used

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  • Button cell and covering method of same
  • Button cell and covering method of same
  • Button cell and covering method of same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0055] see figure 1 , The present embodiment provides a button battery 10, which can improve the sealing performance of the button battery 10, and improve the leakage and short circuit of the button battery 10 in the prior art.

[0056] Please refer to figure 1 with figure 2 , In this embodiment, the button battery 10 includes an upper pole cover 100 , an insulating glue 300 , a casing 200 , a lower pole cover 400 and a battery core 500 . Wherein, the upper pole cover 100 , the insulating glue 300 , the casing 200 and the lower pole cover 400 are connected to each other to form a shell of the battery core 500 and can be used to contain the electrolyte to form a complete battery.

[0057] It should be noted that, in this embodiment, both the upper pole cover 100 and the lower pole cover 400 are circular plates, the casing 200 is a cylinder, and the insulating glue 300 is in a ring shape.

[0058]The upper pole cover 100 is connected to one end of the casing 200 through insu...

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PUM

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Abstract

The invention discloses a button cell and a covering method of the same, and relates to the field of button cells. The button cell comprises a battery cell, an upper pole cover, insulation glue, a lower pole cover and a shell, wherein the upper pole cover is connected to one end of the shell by the insulation glue formed through hot melting, the lower pole cover is arranged at the other end of theshell, the battery cell is arranged in the shell, one end of the battery cell is connected to the upper pole cover, and the other end of the battery cell is connected with the lower pole cover. The covering method of the button cell, provided by the invention, is used for processing the button cell. With the button cell and the covering method of the same, provided by the invention, the sealing performance of the button cell can be improved, and liquid leakage and short circuit of the button cell are improved.

Description

technical field [0001] The invention relates to the technical field of button batteries, in particular to a button battery and a method for closing a button battery. Background technique [0002] Button-type lithium batteries are widely used in all aspects of life, especially in computer motherboards, watches, calculators, Bluetooth headsets, toy walkie-talkies and other related products and fields. With the development of technology, the current button-type lithium battery negative electrode uses graphite negative electrode. The interior adopts a laminated structure, which can already realize the multiple charging and discharging of the button battery. [0003] However, the shell of the conventional button-type secondary lithium-ion battery adopts a steel shell, and the outer ring of the inner shell is wrapped with a circle of insulating glue. sealing effect. However, due to the above operation, due to the physical deformation seal, the mold will be deformed and damaged d...

Claims

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Application Information

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IPC IPC(8): H01M2/02H01M2/04H01M2/08H01M10/0525H01M10/058H01M50/109H01M50/153H01M50/166H01M50/169H01M50/183
CPCY02E60/10Y02P70/50
Inventor 程飞
Owner 四川福来威新能源科技有限公司
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