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Zinc air battery with microporous membrane

A zinc-air battery, microporous membrane technology, applied in battery electrodes, fuel cell components, circuits, etc., can solve problems such as easy water loss, and achieve the effects of reducing water evaporation, improving performance, and prolonging life.

Inactive Publication Date: 2013-07-24
ANHUI DEQING BATTERY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the defect that the gas diffusion electrode of the zinc-air battery is exposed to the air during the discharge process in the prior art, and is easily dehydrated by the environment, and provides a zinc-air battery with a microporous membrane to solve the above-mentioned problems. question

Method used

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  • Zinc air battery with microporous membrane
  • Zinc air battery with microporous membrane
  • Zinc air battery with microporous membrane

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Embodiment Construction

[0029] In order to have a further understanding and understanding of the structural features of the present invention and the effects achieved, the preferred embodiments and accompanying drawings are used in conjunction with detailed descriptions, and the descriptions are as follows:

[0030] like figure 1 As shown, a zinc-air battery with a microporous membrane according to the present invention mainly includes an air electrode consisting of a microporous membrane 1 covering a gas diffusion electrode 2, a zinc electrode consisting of a current collector 5 and a zinc coating paste 4, Separator 3 and battery cell 6. The gas diffusion electrode 2 and the current collector 5 are respectively drawn out through wires as the positive and negative electrodes of the battery. The current collector 5 is placed in sequence on the battery tank 6 with the bottom sealed horizontally placed, and the zinc paste 4 is laid flat to cover the diaphragm 3 and inject a certain amount of The elect...

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Abstract

The invention discloses a zinc air battery with a miroporous membrane. Compared with the prior art, the zinc air battery overcomes the shortcoming of high water loss rate caused by the exposure to air of a gas diffusion electrode of a zinc air battery in a discharging process under environmental influence. The zinc air battery comprises a battery jar (6) and a current collector (5) on the upper part of the battery jar (6). Zinc paste (4) is laid on the current collector (5). An air electrode is arranged on the zinc paste (4) through a diaphragm, and is formed by covering the gas diffusion electrode (2) by the microporous membrane (1). The microporous membrane is a unique passage for oxygen and water vapor exchange between the zinc air battery and the outside, so that the normal passage of oxygen is ensured, water vapor is difficult to lose, the performance of the battery is improved, and the service life of the battery is prolonged.

Description

[0001] technical field [0002] The invention relates to a zinc-air battery, in particular to a zinc-air battery with a microporous membrane. [0003] Background technique [0004] In the prior art, the traditional zinc-air battery is composed of metal zinc, current collector, diaphragm paper, gas diffusion electrode, plastic battery tank and electrolyte, and the gas diffusion electrode and metal zinc constitute the positive and negative electrodes of the battery respectively. With this battery structure design, the gas diffusion electrodes and part of the electrolyte are exposed to the air, and the work of the battery is easily affected by external environmental factors, especially the dehydration of the battery has a more serious impact on its performance. Since the zinc-air battery is suitable to work in the "rich liquid" state, its reaction surface is mainly located at the junction of solid, liquid, and gas. Once the environment is too dry, the evaporation of water ac...

Claims

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Application Information

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IPC IPC(8): H01M12/06H01M8/02H01M4/86
CPCY02E60/50
Inventor 徐献芝魏安康朱梅尹成龙
Owner ANHUI DEQING BATTERY TECH
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