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Primary aluminum air battery

An aluminum-air battery and air electrode technology, which is applied to fuel cell-type half-cells, primary cell-type half-cells, delayed action cells, etc., can solve problems such as battery leakage and self-discharge, and the battery cannot guarantee smooth operation.

Active Publication Date: 2014-06-18
IND TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in some specific storage environments (40°C~70°C) and long-term storage (several years), due to battery leakage and self-discharge, traditional disposable dry batteries cannot be guaranteed to work smoothly. Some usage scenarios cannot be covered by traditional primary dry batteries

Method used

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Embodiment Construction

[0040] In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail together with the accompanying drawings.

[0041] Figure 1A is an exploded perspective view of a primary aluminum-air battery according to the first embodiment of the present invention.

[0042] Please refer to Figure 1A A primary aluminum-air battery 100 in this embodiment includes a container 102 , a battery pack 104 placed in the container 102 , a water-absorbing material 106 , an electrolyte 108 and an active starting device 110 . The battery pack 104 is composed of an aluminum anode 112 and an air electrode cathode 114 . Since the electrolyte 108 is an alkaline, neutral or acidic aqueous solution, the membrane material 116 is used to cover the electrolyte 108 in this embodiment to avoid contact with the battery pack 104 . However, this layer of membrane 116 is not necessary and may be omitted in pro...

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Abstract

The invention discloses a primary aluminum air battery, and the battery at least comprises a container, a battery pack, a water absorption material, an electrolyte, and an active-type starting device. The battery pack is put in the container, and consists of an aluminum anode and an air cathode. The water absorption material is put around the battery pack in the container. The electrolyte is put in the container, and does not contact with the battery pack. The active-type starting device is provided with a mechanism which enables the electrolyte to actively contact with the battery pack.

Description

technical field [0001] The present invention relates to a disposable dry battery, and in particular to a primary aluminum air battery. Background technique [0002] Aluminum-air battery is a battery that uses metal aluminum as fuel and air to generate electricity. Its anode is aluminum metal, and its cathode is a composite material of porous carbon powder and carbon fiber. Both aluminum and carbon are light, and the reactants of the cathode are directly obtained from the air, so the energy density is very high, and the theoretical discharge value can reach more than 8,000Wh / kg. [0003] The chemical reaction equation of the aluminum electrode in the alkaline solution is shown in the discharge reaction of the following formula (1) and the hydrogen production reaction of the following formula (2). [0004] Al+4OH - →Al(OH) 4 － +3e - ;E=2.35V vs. SHE (1) [0005] 2Al+6H 2 O→2Al(OH) 3 +3H 2 (2) [0006] According to the current data in the litera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M6/38
CPCH01M12/06
Inventor 林孟昌吴俊星薛康琳钟佳君
Owner IND TECH RES INST
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