Composition for adhesive and adhesive film, composition for power storage device, slurry for power storage device electrode, power storage device electrode, slurry for protective film, and power storage device

Patent metadata

Field	Value
Publication number	US-2018258327-A1
Application number	US-201615755392-A
Country	US
Kind code	A1
Filing date	Aug 5, 2016
Priority date	Aug 28, 2015
Publication date	Sep 13, 2018
Grant date	—

Abstract

Provided are a composition for an adhesive, which has an adhesive characteristic that hardly changes along with a temperature change, and an adhesive film excellent in productivity, molding processability, and adhesive property. Also provided is a composition for an electrical storage device, which can form a layer excellent in adhesiveness with a current collector or a separator, and enables the production of an electrical storage device excellent in charge-discharge characteristic. The composition according to the present invention includes: heterophasic polymer particles (A); and a liquid medium (B), in which the heterophasic polymer particles (A) each have: a repeating unit derived from a conjugated diene; a repeating unit derived from an unsaturated carboxylic acid ester; and a repeating unit derived from an unsaturated carboxylic acid.

First claim

1 . A composition for an adhesive, comprising:
heterophasic polymer particles (A); and a liquid medium (B),
wherein the heterophasic polymer particles (A) each have:
a repeating unit derived from a conjugated diene;
a repeating unit derived from an unsaturated carboxylic acid ester; and
a repeating unit derived from an unsaturated carboxylic acid.

2 . The composition for an adhesive according to claim 1 , wherein, when the heterophasic polymer particles (A) are subjected to differential scanning calorimetry (DSC) in conformity to JIS K7121, two or more endothermic peaks in a temperature range of from −100° C. to 0° C. are observed.

3 . The composition for an adhesive according to claim 1 , wherein the heterophasic polymer particles (A) have a number average particle diameter of from 50 nm to 400 nm.

4 . The composition for an adhesive according to claim 1 , wherein the heterophasic polymer particles (A) each have a THF insoluble content of 30% or less.

5 . An adhesive film, wherein the adhesive film is produced using the composition for an adhesive of claim 1 .

6 . A composition for an electrical storage device, comprising:
heterophasic polymer particles (A); and a liquid medium (B),
wherein the heterophasic polymer particles (A) each have:
a phase containing 60 mass % or more of a repeating unit derived from a conjugated diene; and
a phase containing 80 mass % or more in total of a repeating unit derived from an unsaturated carboxylic acid ester and a repeating unit derived from an unsaturated carboxylic acid.

7 . The composition for an electrical storage device according to claim 6 , wherein, when the heterophasic polymer particles (A) are subjected to differential scanning calorimetry (DSC) in conformity to JIS K7121, two or more endothermic peaks in a temperature range of from −100° C. to 0° C. are observed.

8 . The composition for an electrical storage device according to claim 6 , wherein the heterophasic polymer particles (A) have a number average particle diameter of from 50 nm to 400 nm.

9 . The composition for an electrical storage device according to claim 6 , wherein the heterophasic polymer particles (A) each have a THF insoluble content of 50% or more.

10 . A slurry for an electrical storage device electrode, comprising:
the composition for an electrical storage device of claim 6 ; and an active material.

11 . An electrical storage device electrode, comprising:
a current collector; and a layer, which is produced on a surface of the current collector using the slurry for an electrical storage device electrode of claim 10 .

12 . An electrical storage device, comprising the electrical storage device electrode of claim 11 .

13 . A slurry for a protective film, comprising:
the composition for an electrical storage device of claim 6 ; and inorganic particles.

14 . An electrical storage device electrode, comprising a protective film produced using the slurry for a protective film of claim 13 .

15 . An electrical storage device, comprising the electrical storage device electrode of claim 14 .

Assignees

• Jsr Corp

Inventors

• Tanaka Naruki
• Liu Jian
• Itou Toshiyuki
• Matsuda Nobuhiro
• Otsuka Yoshiharu

Classifications

• H01M4/139 Primary

  Processes of manufacture · CPC title

• H01M10/345

  Gastight metal hydride accumulators · CPC title

• C09J2203/33

  for batteries or fuel cells · CPC title

• C09J11/04

  inorganic · CPC title

• H01M4/622

  being polymers · CPC title