Positive electrode of primary lithium-manganese battery

A lithium-manganese battery and positive electrode technology, which is applied in the positive electrode field of primary lithium-manganese batteries, can solve the problems of increased labor intensity, low production efficiency, and small contact surface, and achieve the effects of reducing labor intensity, improving production efficiency, and improving firmness

Inactive Publication Date: 2015-05-27
武汉孚安特科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the positive lug of a primary lithium-manganese battery is a stainless steel strip, and the positive lug must be connected to the positive plate. The current collector of the positive plate is an aluminum mesh. The aluminum mesh is welded by an AC resistance spot we

Method used

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  • Positive electrode of primary lithium-manganese battery
  • Positive electrode of primary lithium-manganese battery

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Embodiment Construction

[0012] The positive electrode of the primary lithium manganese battery of this embodiment includes a positive electrode sheet and a positive electrode ear, such as figure 1 As shown, the positive lug of this embodiment is a composite tape formed by a composite of aluminum tape 1 and stainless steel tape 2, and the thickness of the composite tape is generally 0.1 to 3 mm. The aluminum strip 1 of the positive lug is in contact with the aluminum mesh 4 of the positive sheet 3 for surface-to-surface ultrasonic welding, such as figure 2 As shown, there is no need to fold the tabs in half, which simplifies the production process, avoids the phenomenon of virtual welding, and improves the firmness of welding. At the same time, there is no need for multi-point welding, which improves production efficiency and reduces labor intensity.

[0013] Place the entire roll of positive tabs with a thickness of 0.15mm on the production line equipment, with the aluminum strip down and the stainless ...

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Abstract

The invention relates to a positive electrode of a primary lithium-manganese battery. The positive electrode comprises a positive plate and a positive tab, wherein the positive tab is a composite band which is formed by compositing an aluminum band and a stainless steel band, and the aluminum band of the positive tab is soldered onto an aluminum net of the positive plate in a face-to-face manner by virtue of ultrasonic. The aluminum band is directly soldered onto the aluminum net of the positive plate by virtue of the ultrasonic, and the ultrasonic soldering belongs to the surface contact, so that the faulty soldering phenomenon is avoided, the soldering firmness is improved, meanwhile, multipoint soldering is not needed, the production efficiency is improved, and the labor intensity is alleviated.

Description

Technical field [0001] The invention belongs to the field of battery raw materials, and specifically relates to a positive electrode of a primary lithium manganese battery. Background technique [0002] As one of the three major systems of lithium primary batteries, primary lithium manganese batteries have the advantages of low price, no voltage lag, and good safety performance. They are widely used in computers, watches, digital cameras, intelligent transportation, campus cards and remote control car door locks. . [0003] At present, the positive lug of the primary lithium manganese battery is a stainless steel strip, and the positive lug must be connected with the positive sheet. The current collector of the positive sheet is aluminum mesh. It is difficult to weld the stainless steel strip and the aluminum mesh by ultrasonic. The stainless steel strip can only be folded in half and wrapped The aluminum mesh is welded by an AC resistance spot welding machine. Folding the stainle...

Claims

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Application Information

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IPC IPC(8): H01M2/26H01M50/534H01M50/536
CPCH01M50/571H01M50/531Y02E60/10
Inventor 代江华周军
Owner 武汉孚安特科技有限公司
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