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Cylindrical alkaline zinc-manganese battery anode additive and preparation method thereof

A zinc-manganese battery, cylindrical technology, applied in the direction of battery electrodes, circuits, electrical components, etc., can solve the problems of insufficient high-current discharge performance, unsatisfactory long-term shooting, and insufficient cathode ring porosity, etc., to achieve a large improvement Current discharge performance, increased porosity, low cost of raw materials

Inactive Publication Date: 2014-01-08
浙江特源电池有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cathode ring of ordinary alkaline zinc-manganese batteries is not large enough in porosity, high in ion conductivity, and high-current discharge performance is not good enough, so when used in high-current appliances such as digital cameras, the working time is still not long enough to satisfy people. The need for long-term shooting

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Embodiment 1 The preparation method of the positive electrode additive of cylindrical alkaline zinc-manganese battery of the present invention

[0015] Weigh 40Kg of electrolytic manganese dioxide, 3Kg of graphite powder, 0.1Kg of calcium stearate, and 2Kg of barium sulfate. Production steps: Mix in a mixer at room temperature for 5 minutes, add potassium hydroxide (40%wt) 2.5Kg, wet mix for 5 minutes, and then perform sheet rolling, granulation, and sieving to obtain a particle size of 20-80 mesh The positive electrode powder between them is stored for later use.

[0016] Compared with the conventional production method, 1-5 parts of barium sulfate are added to the positive electrode component, which is beneficial to increase the pores between the particles and improve the ion conductivity.

experiment example 1

[0017] Experimental Example 1 The comparison experiment between the technology of the positive electrode additive of the cylindrical alkaline zinc-manganese battery of the present invention and the original technology

[0018] 10Ω continuous play to 0.9V 3.9Ω continuous play to 0.9V 1.8Ω Pulse to 0.9V 1000mA pulse to 0.9V 3.9Ω continuous amplifier to 0.8V New recipe process 19.29 hours 379.2 minutes 645.3 times 395 times 428.7 minutes Original recipe process 19.04 hours 368.1 minutes 611.3 times 353 times 393.5 minutes

[0019] The contrast experiment of the technique of the positive electrode additive of cylindrical alkaline zinc-manganese battery of the present invention and the original technique of table 1

[0020] Through the experiments in Table 1, it can be found that the new formula process of the present invention can improve the high-current discharge performance, and the discharge time and discharge times are ...

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PUM

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Abstract

The present invention provides a cylindrical alkaline zinc-manganese battery anode additive and a preparation method thereof. Raw materials for the anode additive comprise, by weight, 80-90 parts of electrolytic manganese dioxide, 1-10 parts of graphite powder, 0.5-1 parts of calcium stearate and 1-5 parts of barium sulfate. The cost of the raw materials provided by the present invention is low, the preparation process is simple, the porosity of the cathode ring can be increased, the ionic conductivity is improved, and the discharge performance of the high-current is improved, such that the battery is especially suitable for the high-current electrical appliances such as digital camera and the like.

Description

technical field [0001] The invention belongs to the field of fine chemical materials, in particular to a cylindrical alkaline zinc-manganese battery positive electrode additive and a preparation method thereof. Background technique [0002] The alkaline zinc-manganese battery is a primary battery with manganese dioxide as the positive electrode, zinc as the negative electrode, and potassium hydroxide solution as the electrolyte, referred to as alkaline manganese battery, commonly known as alkaline battery. Alkaline zinc-manganese batteries can be used for heavy load, large current discharge, and large capacity. Compared with ordinary dry batteries, they are more cost-effective. They are widely used in civil and industrial applications, especially for flash cameras, mini recorders, video cameras, walkie-talkies, shavers, and palm-type Color TVs and game consoles, toys, telemeters, alarms, calculators, hearing aids, flashlights and electric clocks and other instruments and equ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/62
CPCY02E60/12Y02E60/10
Inventor 吴金星郑昔宝马君芳
Owner 浙江特源电池有限公司