Title:
BINDER FOR NEGATIVE ELECTRODES OF LITHIUM ION SECONDARY BATTERIES, SLURRY COMPOSITION FOR NEGATIVE ELECTRODES, NEGATIVE ELECTRODE, AND LITHIUM ION SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2017/077940
Kind Code:
A1
Abstract:
The objective of the present invention is to provide a binder for negative electrodes, which serves as a material for lithium ion secondary batteries having excellent rate characteristics. The present invention is a binder for negative electrodes of lithium ion secondary batteries, which contains a dispersion liquid that is obtained by dispersing core-corona polymer fine particles in an aqueous dispersion medium, and wherein the core-corona polymer fine particles have a structure wherein a hydrophilic corona part which is composed of a structural unit derived from a carboxyl group-containing hydrophilic macromonomer covers the periphery of a hydrophobic core part which is composed of a structural unit derived from a hydrophobic monomer.
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Inventors:
KAGEYAMA TADASHI (JP)
INAGAKI ATSURO (JP)
TANAKA YOSHIKI (JP)
NAKAJIMA KEIJI (JP)
TOKORO TOSHIO (JP)
WAKIZAKA HIROYUKI (JP)
SASAKI MUNEO (JP)
INAGAKI ATSURO (JP)
TANAKA YOSHIKI (JP)
NAKAJIMA KEIJI (JP)
TOKORO TOSHIO (JP)
WAKIZAKA HIROYUKI (JP)
SASAKI MUNEO (JP)
Application Number:
PCT/JP2016/081903
Publication Date:
May 11, 2017
Filing Date:
October 27, 2016
Export Citation:
Assignee:
SENKA CORP (JP)
SHIGA PREFECTURE (JP)
AKASHI MITSURU (JP)
SHIGA PREFECTURE (JP)
AKASHI MITSURU (JP)
International Classes:
H01M4/62; C08F290/12; H01M4/13
Domestic Patent References:
| WO2012093689A1 | 2012-07-12 |
Foreign References:
| JP2006077069A | 2006-03-23 | |||
| JPH11214011A | 1999-08-06 |
Other References:
TADASHI KAGEYAMA ET AL.: "3B20 Core-Corona-gata Biryushi o Binder to shite Mochiita Tansokei Fukyoku no Rate Tokusei ni Oyobosu Eikyo", DAI 56 KAI ABSTRACTS, BATTERY SYMPOSIUM IN JAPAN, 10 November 2015 (2015-11-10), pages 188
Attorney, Agent or Firm:
SAEGUSA & PARTNERS (JP)
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