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Zinc-air battery positive electrode structure, assembly method and zinc-air battery

A technology of zinc-air battery and assembly method, which is applied to battery electrodes, fuel cell half-cells, secondary battery-type half-cells, structural parts, etc., and can solve problems such as liquid leakage

Active Publication Date: 2020-06-05
GUANGZHOU GREAT POWER ENERGY & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Zinc-air battery cathode structure, assembly method and zinc-air battery can solve the leakage problem of existing button-type zinc-air batteries

Method used

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  • Zinc-air battery positive electrode structure, assembly method and zinc-air battery
  • Zinc-air battery positive electrode structure, assembly method and zinc-air battery
  • Zinc-air battery positive electrode structure, assembly method and zinc-air battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0069] Example: 20 PR41 batteries comprising the positive electrode structure 10 of the zinc-air battery manufactured by the above-mentioned assembly method of the positive electrode structure of the zinc-air battery.

[0070] Wherein, it should be noted that, except that the positive electrode structure 10 of the zinc-air battery is different, other conditions of the comparative example and the embodiment are the same.

[0071] Put the 20 PR41 batteries of the comparative example and the example into an oven at 60 degrees Celsius for 20 days at high temperature to confirm the leakage of the batteries. See Table 1 for the leakage data.

[0072] The amount of leaked liquid after aging at 60 degrees for 20 days comparative example 4 / 20 (pcs) Example 0 / 20 (pcs)

[0073] Table 1

[0074] Among them, it can be seen from Table 1 that the zinc-air battery positive electrode structure 10 produced by the assembly method of the zinc-air battery positive el...

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PUM

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Abstract

The invention discloses a zinc-air battery positive electrode structure, an assembly method and a zinc-air battery. The zinc-air battery positive electrode structure comprises a positive electrode shell and a positive electrode plate, the positive electrode shell comprises a bottom wall and side walls formed around the bottom wall, the inner surface of the bottom wall comprises a central area andan edge area surrounding the central area, the central area is sunken downwards relative to the edge area, air holes of the positive electrode shell are located in the central area, the positive plateis arranged in the positive electrode shell, and the lower surface of the positive plate is attached to the edge area. According to the technical scheme provided by the invention, the problem of liquid leakage of an existing button zinc air battery can be solved.

Description

technical field [0001] The present application relates to the technical field of zinc-air batteries, in particular, to a zinc-air battery positive electrode structure, an assembly method and a zinc-air battery. Background technique [0002] Zinc air battery (zinc air battery), a primary battery that uses activated carbon to absorb oxygen in the air as the positive electrode active material, zinc as the negative electrode, and caustic soda or caustic alkali solution as the electrolyte. [0003] Since the positive reactant of the zinc-air battery is oxygen in the air, and the negative reactant is zinc powder, the primary button zinc-air battery has the advantages of high energy density and stable discharge platform, and is widely used in portable devices such as hearing aids and Bluetooth headsets. . Since the zinc-air battery reaction needs to continuously obtain oxygen from the air, there are 1-5 pores with a diameter of 0.1mm-0.5mm distributed on the bottom of the positive...

Claims

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Application Information

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IPC IPC(8): H01M12/08H01M2/02H01M4/86H01M4/88
CPCH01M4/86H01M4/88H01M12/085H01M50/109Y02E60/10
Inventor 胡铭昌薛建军周雪晴陈玮
Owner GUANGZHOU GREAT POWER ENERGY & TECH CO LTD
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