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Disposable metal-air battery

A metal-air battery, a disposable technology, applied in the direction of fuel cell half-cells and primary battery-type half-cells, etc., can solve the problems that plague the development of metal-air batteries, damage the seal of metal-air batteries, and fail to solve the problem of electrolyte leakage and other problems, to achieve good sealing performance, protection of the reaction environment, and a good effect of the reaction environment

Inactive Publication Date: 2009-11-25
哈峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the problem of electrolyte leakage has been plagued by the better development of metal-air batteries.
During the discharge process of the battery, external oxygen continuously enters the battery, and the metal anode inside the battery is continuously oxidized to form metal oxides, and the volume is also constantly expanding, which increases the internal pressure of the battery, which will destroy the metal air. The sealing of the battery will cause the electrolyte to overflow and destroy the reaction environment of the battery
[0003] Although the various sealing structures and materials of some disposable metal-air batteries are also disclosed in the prior art, the problem of electrolyte leakage still cannot be solved

Method used

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Embodiment Construction

[0024] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0025] Such as Figure 1~6 As shown, the disposable metal-air battery of the present invention includes a battery sheath 1 , an air electrode 2 , a metal anode 3 , an electrolyte 4 and an air bag 5 . Wherein the air electrode 2 is a prior art, such as Figure 7-10 As shown, it includes a waterproof layer 21, a collector net 22, a catalytic layer 23, and a diaphragm 24. The waterproof layer 21 is a hollow cylindrical structure, and the current collecting net 22 for collecting current is embedded in the waterproof layer 21. The inner wall of the current collecting net 22 is pasted with a catalytic layer 23, and the inner wall of the catalytic layer 23 is pasted with an insulating diaphragm 24. The diaphragm 24 can prevent The broken anode fragments are short-circuited with the cathode. After the air electrode 2 is formed, the length of the current collecting...

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Abstract

The invention belongs to the technical field of chemical power supplies, in particular to a disposable metal-air battery which comprises a battery jacket, an air electrode and a metal anode, wherein the air electrode is positioned in the battery jacket, the metal anode is inserted into the air electrode, electrolyte is arranged between the metal anode and the air electrode, the battery jacket is provided with an air channel, and air cells communicated with air are arranged in the air electrode and between a cathode cap and the metal anode. The disposable metal-air battery is provided with a pressure-releasing air cell in the battery, thereby releasing pressure extruded by the electrolyte, preventing the pressure in the battery from increasing, preventing the electrolyte from leaking and better protecting the reaction environment of the battery. The invention has the advantages of simple and convenient assembly, firm sealing-in and good sealing.

Description

technical field [0001] The invention belongs to the technical field of chemical power sources, in particular to a disposable metal-air battery. Background technique [0002] At present, metal-air batteries have attracted great attention from the industry for their advantages of storing electric energy several times higher than traditional batteries. In the prior art, various metal-air batteries have also been disclosed. However, the problem of electrolyte leakage has always plagued the better development of metal-air batteries. Trace it to its cause, besides the waterproofness of the air electrode and the reliability of the battery sealing structure, an important reason is that the inside of the metal-air battery only has the electrolyte and the anode material (metal), but no oxidant; the oxygen as the oxidant is in the During the discharge reaction of the metal-air battery, the air electrode enters the interior of the battery, and under the action of the catalyst, oxygen ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M12/06
CPCY02E60/128
Inventor 哈峰
Owner 哈峰
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