Title:
COMPOSITE METAL OXIDE, ELECTRODE, AND SODIUM SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2010/104202
Kind Code:
A1
Abstract:
Disclosed is a composite metal oxide which contains Na, M1 and M2 [wherein M1 represents at least one element selected from the group consisting of Mg, Ca, Sr and Ba; and M2 represents at least one element selected from the group consisting of Mn, Fe, Co and Ni], wherein the molar ratio Na:M1:M2 is a:b:1 [wherein a represents a value of not less than 0.5 and less than 1; and b represents a value more than 0 and not more than 0.5, wherein the sum total of a and b (i.e., a + b) is more than 0.5 and not more than 1]. Also disclosed is an electrode active material comprising the composite metal oxide. Further disclosed is an electrode comprising the electrode active material. Still further disclosed is a sodium secondary battery involving the electrode as a positive electrode.
Inventors:
KUZE SATORU (JP)
MAKIDERA MASAMI (JP)
YAMAMOTO TAKETSUGU (JP)
MAKIDERA MASAMI (JP)
YAMAMOTO TAKETSUGU (JP)
Application Number:
PCT/JP2010/054474
Publication Date:
September 16, 2010
Filing Date:
March 10, 2010
Export Citation:
Assignee:
SUMITOMO CHEMICAL CO (JP)
KUZE SATORU (JP)
MAKIDERA MASAMI (JP)
YAMAMOTO TAKETSUGU (JP)
KUZE SATORU (JP)
MAKIDERA MASAMI (JP)
YAMAMOTO TAKETSUGU (JP)
International Classes:
H01M4/505; H01M4/485; H01M4/525; H01M10/054; H01M50/443; H01M50/451; H01M50/489; H01M50/491
Domestic Patent References:
| WO2006057307A1 | 2006-06-01 |
Foreign References:
| JPH1140156A | 1999-02-12 | |||
| JP2001332258A | 2001-11-30 | |||
| JP2004533706A | 2004-11-04 | |||
| JP2002069221A | 2002-03-08 | |||
| JP2009227505A | 2009-10-08 | |||
| JP2005317511A | 2005-11-10 | |||
| JP2000030686A | 2000-01-28 | |||
| JPH10324758A | 1998-12-08 |
Other References:
See also references of EP 2410596A4
Attorney, Agent or Firm:
NAKAYAMA, Tohru et al. (JP)
Toru Nakayama (JP)
Toru Nakayama (JP)
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