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Button battery and preparation process thereof

A technology of button battery and preparation process, which is applied to batteries, battery pack parts, battery boxes/jackets, etc., can solve the problems affecting the performance and service life of button batteries, affecting the sealing performance of button batteries, and high requirements for sealing operation accuracy, and achieves Increase sealing performance and service life, good sealing performance and long service life

Pending Publication Date: 2020-05-19
HUIZHOU HENGTAI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing button batteries are generally provided with a sealing ring between the positive stainless steel casing and the negative stainless steel casing, so that the button batteries can achieve a sealing effect, but the existing button batteries have the problem of poor sealing performance. The sealing operation is generally to install the sealing ring on the positive stainless steel shell or the negative stainless steel shell, and then cooperate with the positive stainless steel shell and the negative stainless steel shell to realize the sealing of the button battery. There are easy gaps between the negative stainless steel shells, and the existing button batteries require high sealing operation precision, which is not conducive to industrial production. Moreover, the sealing ring is easily worn during the process of matching the positive stainless steel shell and the negative stainless steel shell. Thus affecting the sealing of the button battery, affecting the performance and service life of the button battery, at the same time, the poor sealing of the button battery may also cause the leakage of the electrolyte, which is dangerous and endangers people's health

Method used

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  • Button battery and preparation process thereof
  • Button battery and preparation process thereof
  • Button battery and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0032] For an implementation, see figure 1 , a preparation process of a button cell, comprising the following steps:

[0033] S110. Providing a cell assembly, which includes a cell body, a positive tab, and a negative tab.

[0034] It should be noted that the battery cell assembly is the component for storing the electric energy of the button battery. When the button battery is used, the button battery is connected to an external electrical device, and the battery cell assembly can output electric energy to provide the external electrical device with The required electric energy enables the normal operation of the external electrical device. The electric energy is stored in the main body of the battery cell. A suitable preparation process for the main body of the battery cell. The positive pole tab and the negative pole tab are used as the electrodes of the button battery to transmit the electric energy in the main body of the battery cell to the external electrical device. S...

Embodiment 1

[0058] Provide battery components. The battery component includes the main body of the battery, the positive tab and the negative tab. The main body of the battery includes the positive sheet, the negative sheet and the separator. After the positive sheet, the separator and the negative sheet are stacked in sequence, the positive sheet, The separator and the negative electrode sheet are wound to obtain the main body of the wound cell;

[0059] Provide the first steel shell and the second steel shell, place the cell assembly in the first steel shell, and inject electrolyte;

[0060] Provide a sealing ring, first roll the sealant on the inner wall of the sealing ring to obtain the first sealant layer, set the seal ring on the second steel shell, make the first sealant layer contact with the second steel shell, and then Brush the sealant on the outer wall of the sealing ring to obtain the second sealant layer, cover the second steel shell in the first steel shell, make the second...

Embodiment 2

[0063] Provide battery components. The battery component includes the main body of the battery, the positive tab and the negative tab. The main body of the battery includes the positive sheet, the negative sheet and the separator. After the positive sheet, the separator and the negative sheet are stacked in sequence, the positive sheet, The separator and the negative electrode sheet are wound to obtain the main body of the wound cell;

[0064] Provide the first steel shell and the second steel shell, place the cell assembly in the first steel shell, and inject electrolyte;

[0065] Provide a sealing ring, first roll the sealant on the inner wall of the sealing ring to obtain the first sealant layer, set the seal ring on the second steel shell, make the first sealant layer contact with the second steel shell, and then Brush the sealant on the outer wall of the sealing ring to obtain the second sealant layer, cover the second steel shell in the first steel shell, make the second...

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Abstract

The invention relates to the field of batteries, and discloses a button battery and a preparation process thereof. The preparation process comprises the following steps: providing a battery core assembly, wherein the battery core assembly comprises a battery core main body, a positive tab and a negative tab; providing a first steel housing and a second steel housing, placing the battery core assembly in the first steel housing, and injecting electrolyte; providing a sealing ring, arranging sealant on the surface of the sealing ring, superposing the first steel housing, the sealing ring and thesecond steel housing, arranging the sealing ring between the first steel housing and the second steel housing, and heating and sealing the superposed parts of the first steel housing, the sealing ring and the second steel housing; and welding the positive tab and the first steel housing, and welding the negative tab and the second steel housing to obtain the button battery. According to the button battery, the sealant is arranged on the surface of the sealing ring, so that the sealing performance of the button battery can be improved, the service life of the button battery is longer, and thesafety performance is better; and the technological process of the preparation process is simple, and the finished product quality is improved.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a button battery and a preparation process thereof. Background technique [0002] Button battery, also known as button battery, refers to a battery that looks like a small button. Generally speaking, it has a larger diameter, thinner thickness, and a flat structure. Button batteries are widely used in various microelectronics due to their small size. Among the products, it has high practicability, and the button battery has the advantages of stable discharge voltage, wide operating temperature range, and long storage life. It is widely used in various products such as computer motherboards, calculators, electronic watches, remote controls, and electronic toys. It is generally used as a backup power supply for various electronic products, such as computer motherboards, electronic watches, electronic dictionaries, electronic scales, remote controls, electric toys, pacemakers, ele...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/08H01M2/02
CPCH01M2220/30H01M50/109H01M50/183Y02E60/10
Inventor 刘志伟沈立强覃昌松戴建勇曾贤华
Owner HUIZHOU HENGTAI TECH