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Title:
POSITIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2011/067898
Kind Code:
A1
Abstract:
Disclosed is a method for producing a positive electrode active material for a nonaqueous electrolyte secondary battery, which comprises: a step in which an intermediate is prepared by having an oxygen permeable ceramic or a precursor thereof adhere to the surface of an oxide or hydroxide that contains nickel; a step in which the intermediate and a lithium compound are mixed together; and a step in which the thus-obtained mixture is fired in the air, thereby synthesizing a lithium nickel complex oxide. The step of having an oxygen permeable ceramic or a precursor thereof adhere includes a process of having the oxygen permeable ceramic or a precursor thereof deposit on the surface of the oxide or hydroxide, for example, in an aqueous alkaline solution.

Inventors:
NAKURA KENSUKE
Application Number:
PCT/JP2010/006618
Publication Date:
June 09, 2011
Filing Date:
November 11, 2010
Export Citation:
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Assignee:
PANASONIC CORP (JP)
NAKURA KENSUKE
International Classes:
H01M4/525; C01G53/00; H01M4/36
Foreign References:
JP2001266879A2001-09-28
JP2003173775A2003-06-20
JP2003123750A2003-04-25
JP2008251480A2008-10-16
JP2008293988A2008-12-04
JP2003142097A2003-05-16
JP2002015776A2002-01-18
JP2000034167A2000-02-02
JP2006032325A2006-02-02
Other References:
GEORGE TING-KUO FEY ET AL.: "Thermal and electrochemical behavior of yttria-stabilized zirconiacoated LiCo02 during overcharge tests", JOURNAL OF POWER SOURCES, vol. 189, 17 July 2008 (2008-07-17), pages 837 - 840, XP025982812, DOI: doi:10.1016/j.jpowsour.2008.07.016
Attorney, Agent or Firm:
ISHII, Kazuo et al. (JP)
Kazuo Ishii (JP)
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