Title:
BINDER FOR ELECTRODE, COMPOSITION FOR ELECTRODE, AND ELECTRODE SHEET
Document Type and Number:
WIPO Patent Application WO/2015/012366
Kind Code:
A1
Abstract:
A binder for an electrode according to the present invention contains a copolymer latex obtained by emulsion polymerization, the binder for an electrode being characterized in that: the copolymer is formed of monomer components comprising 15-60 mass% of an aliphatic conjugated diene monomer, 5-35 mass% of an ethylenically unsaturated carboxylic acid monomer, 0 mass% to less than 5 mass% of a vinyl cyanide monomer, and 5-80 mass% of a monomer that is copolymerizable with the above monomers; and when dynamic viscoelasticity measurement is performed on the film obtained by drying the copolymer latex, where Tp (°C) represents the peak top temperature for the largest peak of tanδ, the ratio (E1'/E2') between the average value E1' of the storage elastic modulus in the range (Tp - 60)°C to (Tp - 70)°C and the average value E2' of the storage elastic modulus in the range (Tp + 60)°C to (Tp + 70)°C is equal to or smaller than 1000.
Inventors:
HIDA KAZUO (JP)
TAKAMORI MIWA (JP)
MATSUYAMA TAKASHI (JP)
TAKAMORI MIWA (JP)
MATSUYAMA TAKASHI (JP)
Application Number:
PCT/JP2014/069600
Publication Date:
January 29, 2015
Filing Date:
July 24, 2014
Export Citation:
Assignee:
NIPPON A & L INC (JP)
International Classes:
H01M4/62; C08F2/00; C08F236/04
Foreign References:
| JP2010205722A | 2010-09-16 | |||
| JP2011108373A | 2011-06-02 | |||
| JP2006066400A | 2006-03-09 | |||
| JPH1167213A | 1999-03-09 | |||
| JP2013173921A | 2013-09-05 | |||
| JP2014123550A | 2014-07-03 |
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
Yoshiki Hasegawa (JP)
Yoshiki Hasegawa (JP)
Download PDF: