Metal-air battery

An air battery, metal technology, applied in the direction of lithium battery, battery pack parts, hybrid battery parts, etc., can solve the problems such as the deterioration of the interface layer cycle characteristics, and achieve the effect of high charge/discharge efficiency

Inactive Publication Date: 2014-03-26
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, when an interface layer formed of amorphous carbon is provided between the negative electrode layer and the solid electrolyte as disclosed in JP2011-086554A, since lithium ions are deintercalated from the amorphous carbon layer as the interface layer, it tends to Deterioration of cycle characteristics due to side reactions and expansion and contraction of the interface layer occurs

Method used

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Examples

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Embodiment 1

[0054] Mix 90% by mass of Ketjen conductive carbon black (ECP-600JD, produced by Ketjen Black International), 10% by mass of polytetrafluoroethylene (PTFE) binder (F-104, produced by Daikin Industries Ltd.) and as a solvent appropriate amount of ethanol to obtain a mixture. The resulting mixture was rolled by a roll press, dried and cut, whereby a positive electrode layer having a diameter of 18 mmφ and a thickness of 130 μm was obtained.

[0055] Using a 100-mesh net made of SUS304 (manufactured by Nilaco Corporation) as a current collector, the positive electrode layer and the current collector were pressure-bonded, followed by heating and vacuum drying, whereby the current collector and the positive electrode layer were assembled together.

[0056] Using bis(trifluoromethanesulfonyl)amide N,N-diethyl-N-methyl-N-(2-methoxyethyl)ammonium (DEMETFSA, produced by Kanto Chemical Co., INC.) as a solvent, Lithium bis(trifluoromethanesulfonyl)imide (LiTFSA, manufactured by Kishida ...

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Abstract

The invention provides a metal-air battery, including a positive electrode layer, a negative electrode layer, and an electrolyte layer between the positive electrode layer and the negative electrode layer, in which a metal porous body is further provided between the negative electrode layer and the electrolyte layer.

Description

technical field [0001] The present invention relates to metal-air batteries using oxygen as the positive electrode active material. Background technique [0002] With the recent popularity and development of devices such as cellular phones, high-capacity batteries are required as their power sources. Under such circumstances, metal-air batteries are attracting attention as high-capacity batteries having high energy density and superior to lithium-ion batteries generally used at present. In a metal-air battery, in the air electrode, oxygen in the air is used as a positive electrode active material to carry out a redox reaction of oxygen, and in the negative electrode, on the other hand, a redox reaction of the metal constituting the negative electrode is carried out , so as to realize charging or discharging (see National Institute of Advanced Industrial Science And Technology (Japan Advanced Institute of Industrial Technology, AIST), "development of high performance lithium...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M12/06H01M2/18
CPCH01M12/08H01M12/02H01M10/052H01M2/1673Y02E60/10H01M50/46
Inventor 南圭一
Owner TOYOTA JIDOSHA KK
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