Title:
CONDUCTIVE PIGMENT PASTE, MIXTURE PASTE, AND ELECTRODE FOR LITHIUM ION BATTERY
Document Type and Number:
WIPO Patent Application WO/2023/048203
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing: a conductive pigment paste and a mixture paste having excellent pigment dispersibility and storage stability even in a high pigment concentration; and an electrode for a lithium ion battery, the electrode having excellent performance in various aspects (battery performance and the like). To solve the problem, a conductive pigment paste containing a pigment dispersion resin (A), a conductive pigment (B), a solvent (C), a fluororesin (D), and a highly polar low-molecular-weight component (E) is provided, wherein: the pigment dispersion resin (A) has at least one polar functional group selected from the group consisting of an amide group, an imide group, a hydroxyl group, a carboxyl group, a sulfonic acid group, a phosphoric acid group, a silanol group, a cyano group, and a pyrrolidone group; the concentration of the polar functional group in the pigment dispersion resin (A) is 0.3-23 mmol/g; the conductive pigment (B) contains carbon nanotubes (B1); and the highly polar low-molecular-weight component (E) contains an amine compound (E1).
Inventors:
FURUSAWA SATORU (JP)
SUZUKI RIKUYA (JP)
SUZUKI RIKUYA (JP)
Application Number:
PCT/JP2022/035291
Publication Date:
March 30, 2023
Filing Date:
September 22, 2022
Export Citation:
Assignee:
KANSAI PAINT CO LTD (JP)
International Classes:
C09D5/24; C09D7/20; C09D7/61; C09D7/63; C09D7/65; C09D17/00; C09D127/12; H01B1/24; H01M4/13; H01M4/139; H01M4/62
Domestic Patent References:
| WO2020017656A1 | 2020-01-23 | |||
| WO2019208637A1 | 2019-10-31 |
Foreign References:
| JP2021084945A | 2021-06-03 | |||
| JP2020011872A | 2020-01-23 | |||
| JP2020029471A | 2020-02-27 | |||
| JP2005336341A | 2005-12-08 |
Attorney, Agent or Firm:
YAMADA, Yasuyuki et al. (JP)
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