Title:
POSITIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY USING SAID POSITIVE ELECTRODE ACTIVE MATERIAL
Document Type and Number:
WIPO Patent Application WO/2013/146115
Kind Code:
A1
Abstract:
This positive electrode active material or a positive electrode using the positive electrode active material can dramatically improve battery characteristics such as storage characteristics in a charged state, even when exposed to the air and thereafter used for the production of a battery. The positive electrode active material is characterized by comprising: a lithium-transition metal composite oxide which contains nickel and manganese as the essential components and in which the molar amount of nickel is larger than that of manganese; and sodium fluoride which adheres to the surface of the lithium-transition metal composite oxide. The lithium-transition metal composite oxide may contain cobalt.
Inventors:
KAWAKITA AKIHIRO (JP)
OGASAWARA TAKESHI (JP)
OGASAWARA TAKESHI (JP)
Application Number:
PCT/JP2013/055936
Publication Date:
October 03, 2013
Filing Date:
March 05, 2013
Export Citation:
Assignee:
SANYO ELECTRIC CO (JP)
International Classes:
H01M4/525; H01M4/36; H01M4/505; H01M10/0525; H01M10/0566; H01M10/0587
Domestic Patent References:
| WO2010147179A1 | 2010-12-23 |
Foreign References:
| JP2011028976A | 2011-02-10 | |||
| JP2001313034A | 2001-11-09 | |||
| JPH08321326A | 1996-12-03 | |||
| JP2008536285A | 2008-09-04 | |||
| JP2012209077A | 2012-10-25 |
Attorney, Agent or Firm:
KITADAI, Tetsuo et al. (JP)
Tetsuo Kitadai (JP)
Tetsuo Kitadai (JP)
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