LITHIUM AIR BATTERY

PROBLEM TO BE SOLVED: To provide a lithium air battery that is used for a long period of time with little degradation due to effect by moisture in the air without inhibiting supply of oxygen to a porous positive electrode due to air electrode collector. SOLUTION: The lithium air battery includes: an...

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Bibliographische Detailangaben
1. Verfasser:	KAMISAKA SHINICHI
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRICITY GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a lithium air battery that is used for a long period of time with little degradation due to effect by moisture in the air without inhibiting supply of oxygen to a porous positive electrode due to air electrode collector. SOLUTION: The lithium air battery includes: an oxygen permselective membrane 80 hardly permeable to water vapor and selectively permeable to oxygen; an oxygen chamber 88 for storing therein oxygen; the air electrode collector 62 formed of a porous material; a diffusion layer 50 arranged between the air electrode collector and the porous positive electrode and formed of a conductive material; the porous positive electrode 10 for containing the conductive material and a catalyst material; a separator 30 hardly passing the water vapor therethrough; nonaqueous electrolyte 40; a negative electrode 20 for emitting lithium ions; and a negative electrode collector 64. The lithium air battery may also include a water-repellent layer. COPYRIGHT: (C)2011,JPO&INPIT