ADDITIVE FOR POSITIVE ELECTRODES OF LITHIUM SECONDARY BATTERIES, AND POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERIES

Title:

ADDITIVE FOR POSITIVE ELECTRODES OF LITHIUM SECONDARY BATTERIES, AND POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERIES

Document Type and Number:

WIPO Patent Application WO/2012/096342

Kind Code:

A1

Abstract:

Provided are: an additive for positive electrodes, which is capable of increasing the output of a lithium secondary battery and is capable of maintaining cycle characteristics even during high-speed charge and discharge; and a positive electrode for lithium secondary batteries. The additive is an additive for positive electrodes of lithium secondary batteries, which contains, as an essential constituent, a substituted polythiophene (P) that has a repeating unit (D), which is obtained by substituting a hydrogen atom in the 3-position and/or in the 4-position of a thiophene ring with at least one group (f) that is selected from the group consisting of a perfluoroalkylalkoxy group (f1), a perfluoroalkoxy group (f2), a perfluoroalkoxyalkyl group (f3) and an alkyl group (f4) substituted with the group (f1), as at least a part of a thiophene repeating unit.

Inventors:

OTAKA TAKESHI (JP)
YOSHIDA BUNPEI (JP)
WAKATSUKI ATSUSHI (JP)
TAKEDA TAKUMA (JP)

Application Number:

PCT/JP2012/050484

Publication Date:

July 19, 2012

Filing Date:

January 12, 2012

Export Citation:

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Assignee:

SANYO CHEMICAL IND LTD (JP)
OTAKA TAKESHI (JP)
YOSHIDA BUNPEI (JP)
WAKATSUKI ATSUSHI (JP)
TAKEDA TAKUMA (JP)

International Classes:

H01M4/62

Foreign References:

JP2010257954A	2010-11-11
JP2007250993A	2007-09-27
JP2007052940A	2007-03-01
JP2010135310A	2010-06-17

Other References: