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Title:
LITHIUM AIR SECONDARY CELL
Document Type and Number:
WIPO Patent Application WO/2013/161516
Kind Code:
A1
Abstract:
Provided is a lithium air secondary cell in which degradation of the alkali electrolytic solution, air electrode, and negative electrode can be effectively prevented and which has a long lifespan and a high long-term reliability. The lithium air secondary cell is provided with: an air electrode (12) that functions as a positive electrode; a negative ion exchanger (14) which is provided in intimate contact with one surface side of the air electrode and which comprises a hydroxide-ion-conducting inorganic solid electrolyte; a separator (16) which is provided at a distance from the negative ion exchanger and which comprises a lithium-ion-conducting inorganic solid electrolyte; a negative electrode (18) which is provided so as to be capable of transferring lithium ions to and from the separator and which includes lithium; and an alkali electrolytic solution (20) packed between the negative ion exchanger and the separator.

Inventors:
YAMADA NAOHITO (JP)
YAMAMOTO KAZUHIRO (JP)
KITOH KENSHIN (JP)
Application Number:
PCT/JP2013/059841
Publication Date:
October 31, 2013
Filing Date:
April 01, 2013
Export Citation:
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Assignee:
NGK INSULATORS LTD (JP)
International Classes:
H01M12/08; C01F7/785; H01M4/86; H01M50/434; H01M50/497
Domestic Patent References:
WO2009104570A12009-08-27
WO2010109670A12010-09-30
WO2011108526A12011-09-09
WO2013073292A12013-05-23
WO2009104570A12009-08-27
WO2010109670A12010-09-30
WO2011108526A12011-09-09
Foreign References:
JP2011238404A2011-11-24
JP2009016090A2009-01-22
JP2011073962A2011-04-14
JP2011073963A2011-04-14
JP2010176941A2010-08-12
JP2011051800A2011-03-17
JP2011073962A2011-04-14
JP2011073963A2011-04-14
JP2012033490A2012-02-16
Other References:
PHILIPPE STEVENS ET AL.: "Development of an aqueous, rechargeable lithium-air battery operating with untreated air", 217TH ECS MEETING 2010,ABSTRACT, 2010, pages 746, XP055168918
YUTA SHIMONISHI ET AL.: "Synthesis of garnet- type Li7-xLa3Zr2012-1/2x and its stability in aqueous solutions", SOLID STATE IONICS, vol. 183, 21 January 2011 (2011-01-21), pages 48 - 53, XP028139107
HENRIK BUSCHMANN ET AL.: "Lithium metal electrode kinetics and ionic conductivity of the solid lithium ion conductors''Li7La3Zr2012'' and Li7-xLa3Zr2-xTax012 with garnet-type structure", JOURNAL OF POWER SOURCES, vol. 206, 23 January 2012 (2012-01-23), pages 236 - 244, XP028403114
SHINGO OHTA ET AL.: "High lithium ionic conductivity in the garnet-type oxide Li7-xLa3 (zr2-x,Nbx)O12(x=0-2)", JOURNAL OF POWER SOURCES, vol. 196, 24 November 2010 (2010-11-24), pages 3342 - 3345, XP055168950
YASUO TAKEDA ET AL.: "Lithium/Air battery using aqueous electrolyte", IEICE TECHNICAL REPORT, CPM, COMPONENT PARTS AND MATERIALS, vol. 109, no. 410, 25 January 2010 (2010-01-25), pages 23 - 28, XP008174916
ECS TRANSACTIONS, vol. 28, no. 32, 2010, pages 1 - 12
PHILIPPE STEVENS ET AL.: "Development of a lithium air rechargeable battery", ECS TRANSACTIONS, vol. 28, no. 32, 2010, pages 1 - 12, XP055168918, DOI: doi:10.1149/1.3507922
See also references of EP 2843753A4
Attorney, Agent or Firm:
TAKAMURA Masaharu et al. (JP)
Masaharu Takamura (JP)
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