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Soft package button cell, manufacturing method thereof and electronic equipment

A technology of a button battery and a manufacturing method, which is applied to the manufacture of electrolyte batteries, lithium batteries, battery pack components, etc., can solve problems such as the occurrence of noise floor and reduce product quality, and achieve the effect of eliminating interference magnetic fields and improving the noise floor phenomenon of equipment.

Pending Publication Date: 2022-04-29
SPRINGPOWER TECHNOLOGY (SHENZHEN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem that the existing button battery produces background noise due to the electromagnetic field and lowers product quality, the invention provides a soft-packed button battery, a manufacturing method thereof, and an electronic device

Method used

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  • Soft package button cell, manufacturing method thereof and electronic equipment
  • Soft package button cell, manufacturing method thereof and electronic equipment
  • Soft package button cell, manufacturing method thereof and electronic equipment

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0066] refer to figure 1 As shown, this embodiment is used to illustrate the soft pack button battery disclosed in the present invention and its manufacturing method, including the following steps:

[0067] Step S1: Take the positive electrode sheet and the negative electrode sheet, weld the positive electrode ear on the second end of the positive electrode sheet, and weld the negative electrode ear on the second end of the negative electrode sheet, and stack them in order according to the diaphragm, positive electrode sheet, diaphragm, and negative electrode sheet, starting from the second end of the negative electrode sheet. One end is wound into a cylindrical winding core toward the second end, wherein the first end of the negative electrode sheet is located inside the first end of the positive electrode sheet, and the second end of the negative electrode sheet is located outside the second end of the positive electrode sheet, with the positive tab The line connecting the c...

Embodiment 2

[0072] This embodiment is used to illustrate the soft pack button battery disclosed in the present invention and its manufacturing method, including most of the operations of Embodiment 1, the only difference is that the angle α between the first reference line and the second reference line is 45°.

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Abstract

In order to solve the problems that the existing button cell generates bottom noise and the product quality is reduced due to the generation of an electromagnetic field, the invention provides a soft package button cell. Comprising a roll core, and the roll core comprises a positive plate, a negative plate and a diaphragm arranged between the positive plate and the negative plate; the positive plate, the diaphragm and the negative plate are sequentially stacked and then wound to form a roll core, a positive tab is led out from the positive plate, a negative tab is led out from the negative plate, a center connecting line of the positive tab and the roll core is taken as a first reference line, a center connecting line of the negative tab and the roll core is taken as a second reference line, and an included angle between the first reference line and the second reference line is 30-75 degrees. The invention also provides a manufacturing method of the soft package button cell. According to the soft package button battery provided by the invention, the included angle between the positive tab and the negative tab is controlled to be 30-75 degrees, so that the length difference between the positive plate and the negative plate when the positive plate and the negative plate are ended is reduced, magnetic fields generated by the positive plate and the negative plate can be further counteracted, and the bottom noise phenomenon is relieved.

Description

technical field [0001] The invention belongs to the technical field of lithium ion batteries, and in particular relates to a soft pack button battery, a manufacturing method thereof, and electronic equipment. Background technique [0002] In recent years, with the rapid development of electronic technology, various types of electronic devices emerge in an endless stream. Background noise is a relatively common problem in current electronic equipment, especially on 3C digital headphones. Noise floor, or background noise, also known as background noise, generally refers to the total noise in an electroacoustic system other than useful signals. Especially with the popularization and use of TWS (True Wireless Stereo, True Wireless Stereo) Bluetooth headsets, users have higher requirements for user experience. True wireless noise-cancelling headsets pursue higher sound quality, and the sensitivity of the speakers is stronger. If the soft pack button battery is assembled When it...

Claims

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Application Information

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IPC IPC(8): H01M10/052H01M10/058H01M50/109H01M50/531H01M50/533
CPCH01M10/052H01M50/109H01M50/531H01M50/533H01M10/058Y02P70/50
Inventor 陈玉林蔡守珂李升高李祝欣王淼
Owner SPRINGPOWER TECHNOLOGY (SHENZHEN) CO LTD
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