Battery current collector and preparation method as well as alkaline zinc-manganese battery

A zinc-manganese battery and battery collection technology, which is applied to battery electrodes, electrode carriers/current collectors, dry batteries, etc., can solve the problems of liquid leakage, uncontrolled over-discharge depth, and large battery gas evolution, and achieves reduction of production costs. Solving the effect of overdischarge leakage

Inactive Publication Date: 2017-05-17
ZHONGYIN NINGBO BATTERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention overcomes that when the existing alkaline zinc-manganese batteries are used in series or in a single cell, due to the uncontrolled over-discharge depth, the unexpected occurrence of excessively high over-discharge depth leads to a large amount of gas evolution and liquid leakage of the battery

Method used

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  • Battery current collector and preparation method as well as alkaline zinc-manganese battery
  • Battery current collector and preparation method as well as alkaline zinc-manganese battery
  • Battery current collector and preparation method as well as alkaline zinc-manganese battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Take the insulating body made of styrene-butadiene rubber, and use electroless plating to plate a tin plating (coating) layer with a thickness of 20 μm on its entire surface, and then use secondary electroless plating to coat the surface of the wide end of the insulating body with a thickness of 30 μm. The tin layer of the new structure is obtained to control the over-discharge depth of the current collector; through the FDK production line, the positive electrode ring of the steel shell is inserted, the separator paper is inserted, the zinc paste is injected, and the negative electrode bottom of the new structure current collector is inserted and welded with the sealing ring Composed of electron collection, crimping, shaping and sealing to obtain LR6 alkaline zinc-manganese batteries that can self-control the depth of over-discharge;

[0056] The obtained LR6 battery was continuously over-discharged with four 80Ω resistors connected in series for 72 hours. After the cir...

Embodiment 2

[0059] Take the insulating main body made of polypropylene, and use electroless plating followed by electroplating to plate a zinc plating (coating) layer with a thickness of 50 μm on the entire surface, and then use secondary electroless plating to coat the surface of the wide end of the insulating main body with a thickness of 50 μm. 20μm tin layer to obtain a new structure of current collectors with controlled over-discharge depth; through the FDK production line, through the insertion of the positive electrode ring of the steel shell, the insertion of diaphragm paper, the injection of zinc paste, and the insertion of the negative electrode bottom of the new structure of the current collector after welding and sealing Collecting electrons composed of rings, crimping and shaping to obtain LR6 alkaline zinc-manganese batteries that can self-control the depth of over-discharge;

[0060] The obtained LR6 battery was continuously over-discharged with four 80Ω resistors connected ...

Embodiment 3

[0063] Take the insulating body made of polymethyl methacrylate, and use chemical plating to plate an indium plating (coating) layer with a thickness of 10 μm on its surface, and then use secondary chemical plating to plate the surface of the wide end of the insulating body with a thickness of 10 μm. The indium layer of 40 μm is used to obtain a current collector with a new structure that controls the over-discharge depth; through the FDK production line, the positive electrode ring of the steel shell is inserted, the diaphragm paper is inserted, zinc paste is injected, and the negative electrode bottom of the current collector with the new structure is inserted and welded with Collecting electrons composed of sealing rings, crimping and shaping to obtain LR6 alkaline zinc-manganese batteries that can self-control over-discharge depth;

[0064] The obtained LR6 battery was continuously over-discharged with four 80Ω resistors connected in series for 72 hours. After the circuit w...

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Abstract

The invention discloses an alkaline zinc-manganese battery capable of automatically controlling an over-discharging depth. The alkaline zinc-manganese battery comprises a steel shell, zinc cream, a sealing ring, a negative electrode bottom cover and a current collector, and is characterized in that a vertical end of the current collector of the battery stretches into the zinc cream of the battery; a wide-head end of the current collector of the battery is used for welding the negative electrode bottom cover of the battery; the current collector of the battery penetrates through the sealing ring and comprises a T-shaped insulating main body; and a metal plating / coating layer is arranged on an outer surface of the T-shaped insulating main body. According to the alkaline zinc-manganese battery capable of automatically controlling the over-discharging depth, disclosed by the invention, the current collector with a unique structure and properties can be used for sufficiently managing and controlling the over-discharging depth in a discharging process of the alkaline zinc-manganese battery, and a brand-new over-discharging leakage-proof battery is obtained; and a conventional brass nail with relatively high cost can be replaced, so that the production cost of the alkaline zinc-manganese battery is remarkably reduced.

Description

technical field [0001] The invention relates to the field of chemical power sources, in particular to a battery current collector, a preparation method and an alkaline zinc-manganese battery capable of self-controlling over-discharge depth. Background technique [0002] The huge share of zinc-manganese batteries in the battery market is inseparable from its wide range of uses. It is the leading product of civilian primary batteries. Almost all low-voltage DC appliances can use alkaline manganese batteries as power sources. Alkaline zinc-manganese batteries have excellent electrochemical performance and high cost performance, and have been welcomed by consumers. Since mercury-free alkaline zinc-manganese batteries were put into the market, safe, environmentally friendly and high-performance alkaline zinc-manganese batteries have become more and more popular. The praise of the market, now and in the next few decades will be dominated by alkaline zinc-manganese batteries. [0...

Claims

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Application Information

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IPC IPC(8): H01M4/66H01M4/70H01M6/06
CPCH01M4/667H01M4/661H01M4/70H01M6/06
Inventor 崔言明黄园桥陈国标
Owner ZHONGYIN NINGBO BATTERY CO LTD
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