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Lithium-thionyl chloride button cell anode carrier and preparation method thereof

A lithium thionyl chloride button and battery positive electrode technology, which is applied to the electrodes of primary batteries, electrode carriers/collectors, etc., can solve the problems of positive electrode activity, low battery capacity, poor high-current discharge performance, and battery micro-short circuit, etc., to achieve Improved battery reliability and assembly efficiency, improved high-current discharge conditions, and simple manufacturing process

Active Publication Date: 2012-10-24
安徽里亚电池有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The first structure has poor high-current discharge performance, low positive electrode activity and low battery capacity
The second structure has the disadvantages of low reliability, easy to cause micro-short circuit of the battery, and low production efficiency.

Method used

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  • Lithium-thionyl chloride button cell anode carrier and preparation method thereof
  • Lithium-thionyl chloride button cell anode carrier and preparation method thereof
  • Lithium-thionyl chloride button cell anode carrier and preparation method thereof

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with embodiment.

[0027] as attached figure 1 As shown, the present invention has micropores on the positive electrode carrier, the positive electrode carrier is a film-like, porous electrode, the film thickness is: 0.2-3mm, and the number of micropores is 1-3 / mm 2 .

[0028] as attached figure 2 As shown, there is a film 2 on the positive carrier of the present invention, and the adhesive sticks the film on one side of the positive carrier, and the edge of the film wraps the positive carrier 1, and there are micropores on the positive carrier. The positive carrier is mechanically punched with copper needles to punch multiple micropores. The positive carrier is a film-like, porous electrode with a film thickness of 0.2-3mm and the number of micropores is 1-3 / mm 2 .

[0029] as attached image 3 As shown, the positive electrode button cell of the present invention is made of stainless steel case ...

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Abstract

The invention discloses a lithium-thionyl chloride button cell anode carrier and a preparation method thereof, and belongs to the field of button cells. The preparation method comprises the following steps of mixing anode powder, drying by a drying box at a constant drying oven temperature of 180 DEG C for about 15 hours, cooling the fully dried anode powder to a temperature of 90 to 100 DEG C, maintaining the temperature, heating alcohol to a temperature of 55 to 65 DEG C by hot water, rolling an anode carrier 3-5 times by a rolling mill to obtain a thin sheet, coating a binder layer on the rolled anode carrier, carrying out punching and perforation, carrying out sintering at a high temperature of 240 DEG C for 10 to 30 minutes, and carrying out cooling and sealing for next use. The preparation method has simple processes. The lithium-thionyl chloride button cell anode carrier obtained by the preparation method greatly improves cell reliability and assembly efficiency and effectively improves voltage hysteresis and large current discharging of a lithium-thionyl chloride button cell.

Description

[0001] technical field [0002] The invention relates to a lithium thionyl chloride button battery positive electrode carrier and a preparation method thereof, which belong to the field of button batteries. Background technique [0003] With the maturity of automotive electronics (TPMS) technology, and the rapid development of memory backup, real-time clocks, and public instruments, the market development prospects of lithium-substrate button batteries are becoming more and more broad; this requires battery manufacturers to provide more reliable and safer lithium batteries. Sub button batteries to meet market needs. At present, there are generally two structures for the positive electrode carrier of lithium sub-button batteries: 1. Carbon pack type; 2. Granular type. The first structure has poor high-current discharge performance, low positive electrode activity and low battery capacity. The second structure has disadvantages such as low reliability, easy to cause micro-sh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/78H01M4/08
CPCY02E60/12
Inventor 董兴祥胡江华夏信德
Owner 安徽里亚电池有限公司
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