Title:
METHOD FOR PRODUCING POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2011/158575
Kind Code:
A1
Abstract:
Disclosed is a method for producing a positive electrode active material, by which a positive electrode active material that is capable of improving characteristics such as capacity and durability of a lithium secondary battery can be stably produced.
Specifically disclosed is a method for producing a positive electrode active material for a lithium secondary batter, which is characterized by comprising: (1) a molding step of forming a sheet-like molded body which contains, as starting materials, a first component that is composed of a lithium compound, a second component that is a composed of a compound of a transition metal other than lithium, and a third component that is composed of boron oxide and/or vanadium oxide; and (2) a firing step of firing the molded body at a temperature within the range of 700-1300˚C.
Inventors:
SUGIURA RYUTA (JP)
NANATAKI TSUTOMU (JP)
YOSHIKAWA JUN (JP)
NANATAKI TSUTOMU (JP)
YOSHIKAWA JUN (JP)
Application Number:
PCT/JP2011/060749
Publication Date:
December 22, 2011
Filing Date:
May 10, 2011
Export Citation:
Assignee:
NGK INSULATORS LTD (JP)
SUGIURA RYUTA (JP)
NANATAKI TSUTOMU (JP)
YOSHIKAWA JUN (JP)
SUGIURA RYUTA (JP)
NANATAKI TSUTOMU (JP)
YOSHIKAWA JUN (JP)
International Classes:
H01M4/525; C01G51/00; C01G53/00; H01M4/485; H01M4/505
Foreign References:
| JP2006520525A | 2006-09-07 | |||
| JP2005116321A | 2005-04-28 | |||
| JP2002234796A | 2002-08-23 | |||
| JPH0922693A | 1997-01-21 | |||
| JP2003132887A | 2003-05-09 | |||
| JP2003346809A | 2003-12-05 |
Other References:
See also references of EP 2584632A4
Attorney, Agent or Firm:
PROSPEC PATENT FIRM (JP)
Patent business corporation Pros Peck patent firm (JP)
Patent business corporation Pros Peck patent firm (JP)
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Claims: