Title:
CONDUCTIVE MATERIAL DISPERSION, SECONDARY BATTERY ELECTRODE COMPOSITION USING SAME, ELECTRODE FILM, AND SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2022/224925
Kind Code:
A1
Abstract:
Provided is a conductive material dispersion containing: a conductive material; a polymer including aliphatic hydrocarbon structural units and nitrile group-containing structural units; and a dispersion medium, the conductive material being at least one selected from a group consisting of carbon nanotubes and acetylene black. The Mooney viscosity (ML1+4 at 100℃) of the polymer is 20-80 inclusive. The aliphatic hydrocarbon structural units include alkylene structural units, and the content of the aliphatic hydrocarbon structural units relative to the mass of the polymer is at least 40 mass% but less than 85 mass%. The content of the nitrile group-containing structural units relative to the mass of the polymer is 15-50 mass% inclusive. The product (X×Y) of the complex elastic modulus X (Pa) and the phase angle Y (°) of the conductive material dispersion according to dynamic viscoelasticity measurement is 30-1,700 inclusive.
Inventors:
AOTANI YU (JP)
Application Number:
PCT/JP2022/018010
Publication Date:
October 27, 2022
Filing Date:
April 18, 2022
Export Citation:
Assignee:
TOYO INK SC HOLDINGS CO LTD (JP)
TOYOCOLOR CO LTD (JP)
TOYOCOLOR CO LTD (JP)
International Classes:
H01M4/131; H01M4/1391; H01M4/62
Domestic Patent References:
| WO2017010093A1 | 2017-01-19 | |||
| WO2017010093A1 | 2017-01-19 |
Foreign References:
| JP6801806B1 | 2020-12-16 | |||
| JP2022042689A | 2022-03-15 | |||
| JP2022042691A | 2022-03-15 | |||
| JP2018522803A | 2018-08-16 | |||
| JP2018534731A | 2018-11-22 | |||
| JP2018533175A | 2018-11-08 | |||
| JP2021070315A | 2021-05-06 |
Attorney, Agent or Firm:
MIYOSHI Hidekazu et al. (JP)
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