Title:
CONDUCTIVE MATERIAL DISPERSION LIQUID, SLURRY FOR SECONDARY BATTERY POSITIVE ELECTRODES, POSITIVE ELECTRODE FOR SECODNARY BATTERIES, AND SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2021/200126
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a conductive material dispersion liquid which is capable of ensuring good high-temperature storage characteristics of a secondary battery, while reducing the internal resistance of the secondary battery. A conductive material dispersion liquid according to the present invention contains a carbon material, a dispersant and a dispersion medium; and the HSP distance (Rd) between the Hansen solubility parameter (HSPc) of the carbon material and the Hansen solubility parameter (HSPd) of the dispersant is 10.0 MPa1/2 or less.
Inventors:
TAKAHASHI NAOKI (JP)
Application Number:
PCT/JP2021/010667
Publication Date:
October 07, 2021
Filing Date:
March 16, 2021
Export Citation:
Assignee:
ZEON CORP (JP)
International Classes:
H01M4/13; C01B32/174; H01M4/139; H01M4/62
Domestic Patent References:
| WO2018066458A1 | 2018-04-12 | |||
| WO2006011655A1 | 2006-02-02 |
Foreign References:
| JP2018530113A | 2018-10-11 | |||
| JP2018181821A | 2018-11-15 | |||
| JP2016072135A | 2016-05-09 | |||
| JP2016012446A | 2016-01-21 | |||
| JP2018203914A | 2018-12-27 | |||
| JP2005203244A | 2005-07-28 | |||
| JP2020126722A | 2020-08-20 | |||
| JP2012204303A | 2012-10-22 |
Other References:
YAMAMOTO HIROSHI: "Calculation method of solubility parameter and use for solubility evaluation. Introduction to 4. Use for solubility evaluation", PIRIKA.COM, 13 August 2009 (2009-08-13), XP055926705, Retrieved from the Internet [retrieved on 20220531]
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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