Title:
BINDER COMPOSITION FOR ELECTRODE OF LITHIUM ION SECONDARY CELL, ELECTRODE OF LITHIUM ION SECONDARY CELL, AND LITHIUM ION SECONDARY CELL
Document Type and Number:
WIPO Patent Application WO/2015/099021
Kind Code:
A1
Abstract:
This binder composition for an electrode of a lithium ion secondary cell includes an emulsion in which polymer particles derived from an ethylenically unsaturated monomer are dispersed in an aqueous solution of a polyvinyl alcohol resin. The average particle diameter of the polymer particles is at least 50 nm, but less than 600 nm. The viscosity-average degree of polymerization of the polyvinyl alcohol resin is 400-3,000. With a lithium ion secondary cell having a lithium ion secondary cell electrode obtained using this binder composition, high charge-discharge capacity can be stably obtained.
Inventors:
SHIBUTANI MITSUO (JP)
YANO TOMOTAKE (JP)
KOMABA SHINICHI (JP)
YABUUCHI NAOAKI (JP)
TAKEMOTO DAIKI (JP)
YANO TOMOTAKE (JP)
KOMABA SHINICHI (JP)
YABUUCHI NAOAKI (JP)
TAKEMOTO DAIKI (JP)
Application Number:
PCT/JP2014/084271
Publication Date:
July 02, 2015
Filing Date:
December 25, 2014
Export Citation:
Assignee:
NIPPON SYNTHETIC CHEM IND (JP)
International Classes:
H01M4/62
Domestic Patent References:
| WO2013018887A1 | 2013-02-07 | |||
| WO2013161975A1 | 2013-10-31 | |||
| WO2012133034A1 | 2012-10-04 |
Foreign References:
| JP2013105549A | 2013-05-30 | |||
| JP2004095332A | 2004-03-25 |
Attorney, Agent or Firm:
YONEDA YOSHIHIRO (JP)
Yoshihiro Yoneda (JP)
Yoshihiro Yoneda (JP)
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