LITHIUM AIR BATTERY

• Main Authors: ITO EMI, TAKECHI KENSUKE, HASE YOKO
• Format: Patent
• Language: English
• Published: 13.03.2014
• Subjects: 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

PROBLEM TO BE SOLVED: To lower the decomposition voltage of lithium peroxide or lithium oxide during charge reaction.SOLUTION: A lithium air battery, i.e., an electrochemical cell 10, includes a negative electrode 14 capable of storing and releasing lithium ions, a non-liquid permeable solid electrolyte 18 provided on the surface of a positive electrode 20 facing the negative electrode 14, a first nonaqueous electrolyte E1 filling between the solid electrolyte and the negative electrode, and a second nonaqueous electrolyte E2 filling between the solid electrolyte and the positive electrode. The first nonaqueous electrolyte E1 is an ionic liquid (electrolyte A) containing a supporting salt of lithium. The second nonaqueous electrolyte E2 is an ionic liquid containing a supporting salt of lithium, and a radical compound having a nitroxyl radical part (e.g., 4-methoxy-2,2,6,6-tetramethyl-1-piperidinyl oxy(MeO-TEMPO)).