POSITIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTERY COMPRISING THE POSITIVE ELECTRODE

WIPO Patent Application WO/2011/129103

A1

Disclosed are: a sulfur-based positive electrode for a lithium ion secondary battery, which has excellent cycle characteristics and other excellent characteristics; and a lithium ion secondary battery which comprises the positive electrode. Specifically disclosed is a positive electrode for a lithium ion secondary battery, which comprises a collector and an electrode layer that is formed on the surface of the collector and contains a binder resin, an active material and a conductive assistant. The positive electrode for a lithium ion secondary battery is characterized in that: the active material contains a sulfur-modified polyacrylonitrile that is produced by heating a starting material powder, which is composed of a sulfur powder and a polyacrylonitrile powder, in a closed non-oxidizing atmosphere; and the binder resin contains a polyimide resin and/or a polyamideimide resin.

NIWA JUNICHI (JP)
HOKANO KAZUAKI (JP)
NAKANISHI MASATAKA (JP)
KOJIMA AKIRA (JP)
KAWASUMI KAZUHITO (JP)
MIYUKI TAKUHIRO (JP)
SAKAI TETSUO (JP)

PCT/JP2011/002171

October 20, 2011

April 12, 2011

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TOYOTA JIDOSHOKKI KK (JP)
NAT INST OF ADVANCED IND SCIEN (JP)
NIWA JUNICHI (JP)
HOKANO KAZUAKI (JP)
NAKANISHI MASATAKA (JP)
KOJIMA AKIRA (JP)
KAWASUMI KAZUHITO (JP)
MIYUKI TAKUHIRO (JP)
SAKAI TETSUO (JP)

H01M4/137; C08F8/34; C08L33/20; H01M4/60; H01M4/62

WO2010044437A1

2010-04-22

JPH10188992A	1998-07-21
JP2006253450A	2006-09-21

XIAN-GUO YU ET AL.: "Lithium storage in conductive sulfur-containing polymers", JOURNAL OF ELECTROANALYTICAL CHEMISTRY, vol. 57, 27 July 2004 (2004-07-27), pages 121 - 128

OHKAWA, HIROSHI (JP)
Okawa 宏 (JP)

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