Title:
LITHIUM ION SECONDARY BATTERY AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2012/111116
Kind Code:
A1
Abstract:
Provided is a lithium ion secondary battery that has superior battery performance and that is a battery provided with a positive electrode formed using a composition comprising an aqueous solvent. The battery is provided with a positive electrode and a negative electrode, and the positive electrode is provided with a positive electrode collector and a positive electrode mixed layer formed on the collector and containing at least a binding material and a positive electrode active material. The surface of the positive electrode active material is covered by a hydrophobic coating film, and the binding material dissolves or disperses in the aqueous solvent.
Inventors:
MORITA MASAHIRO (JP)
OYAMA YUTAKA (JP)
OYAMA YUTAKA (JP)
Application Number:
PCT/JP2011/053295
Publication Date:
August 23, 2012
Filing Date:
February 16, 2011
Export Citation:
Assignee:
TOYOTA MOTOR CO LTD (JP)
MORITA MASAHIRO (JP)
OYAMA YUTAKA (JP)
MORITA MASAHIRO (JP)
OYAMA YUTAKA (JP)
International Classes:
H01M4/131; H01M4/36; H01M4/505; H01M4/525; H01M4/62; H01M10/0525
Foreign References:
| JP2003288944A | 2003-10-10 | |||
| JP2009224097A | 2009-10-01 | |||
| JP2010182477A | 2010-08-19 |
Attorney, Agent or Firm:
ABE MAKOTO (JP)
Makoto Abe (JP)
Makoto Abe (JP)
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Claims: