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Novel anti-liquid leakage zinc air battery for carbonation self-test

A zinc-air battery, anti-leakage technology, applied in hybrid battery parts, fuel cell parts, fuel cell-type half-cells and primary-cell-type half-cells, etc., can solve problems such as battery failure and achieve Invalidation, prolonging the storage period, and improving the effect of the storage period

Inactive Publication Date: 2015-01-07
唐芳复
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the invention is to overcome the problem of battery failure due to electrolyte carbonation or dilution in existing zinc-air batteries

Method used

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  • Novel anti-liquid leakage zinc air battery for carbonation self-test

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specific Embodiment approach

[0026] A zinc-air battery, comprising an air positive electrode 3 and a battery case 4, characterized in that: the air positive electrode has a protruding portion in contact with the inside of the battery case, and the gap between the air electrode and the battery case forms an air flow Road, the air electrode is a wave shape composed of multiple units, wherein, the interface of the unit wave is one or more of rectangle, trapezoid, semicircle, ellipse, and the air electrode with wave structure increases the catalytic efficiency. The reaction area is convenient for current discharge.

[0027] The preparation method of air cathode 3:

[0028] Step 1: Make the nickel foam collector net into a wave shape;

[0029] Step 2: Coat the collector net with a catalytic layer, and the other side with a waterproof and breathable layer;

[0030] Step 3: Coat the catalytic layer with a (molded) waterproof and breathable layer, or place two PTFE waterproof and breathable membranes on both ...

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Abstract

The invention relates to a novel anti-liquid leakage zinc air battery for carbonation self-test and solves the problems that battery electrolyte is easy for moisture absorption and is easy to leak, and the battery failure is caused by carbonation. The novel leak-proof liquid zinc air battery comprises a battery shell, an air anode, a diaphragm, a zinc cathode and electrolyte from outside to inside in sequence; the zinc air battery is separated by the diaphragm and consists of an anode chamber and a zinc cathode chamber; the air anode is provided with a waterproof breathable layer, an oxygen selectivity permeable membrane and a carbon dioxide adsorption layer, and the section of a current collecting net is rectangular wavy, so that the air through rate is improved; an electrolyte chamber wall is made of thin rubber; a felting needle made of organic glass is arranged inside a spring port, the length of the felting needle is slightly less than the height of the electrolyte chamber, and the inner wall of the electrolyte chamber can be punctured only through lightly pressing the spring port, so that the electrolyte can be fused with calamine cream; the problems of quality guarantee, moisture absorption, liquid leakage and carbonation of the battery are effectively solved.

Description

technical field [0001] The invention relates to a battery, specifically a zinc-air battery that can self-test whether it is carbonated or not, and has excellent leak-proof performance. Background technique [0002] A zinc-air battery is a chemical power source that uses oxygen in the air as the positive electrode active material and metal zinc as the negative electrode active material. Under the catalysis of the electrocatalyst, a chemical reaction occurs to generate electrical energy. Since the zinc-air battery uses oxygen in the air outside the battery as the positive electrode active material, the positive electrode active material does not occupy the volume and weight of the battery, so this type of battery has high cost performance. In addition, because zinc-air batteries also have many advantages such as cheap and easy-to-obtain raw materials, stable discharge voltage, and environmental protection, they are widely used in various portable mobile power sources. [0003...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/02
CPCH01M12/06H01M12/02
Inventor 唐芳复赖光伟
Owner 唐芳复
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