Title:
SECONDARY BATTERY ELECTRODE ADDITIVE
Document Type and Number:
WIPO Patent Application WO/2021/177291
Kind Code:
A1
Abstract:
[Problem] To provide: a secondary battery that can maintain good battery characteristics even when used in an extremely low-temperature environment; and particularly, an electrode material for the secondary battery. [Solution] Provided is an electrode additive for suppressing a decrease in conductivity in low-temperature operation of a secondary battery, the additive being characterized by the inclusion of a particulate carbon material with an average particle diameter of 20–50 nm, a specific surface area in the range 750–800 m2/g, and a ratio (O/C) of oxygen atoms to carbon atoms in a surface functional group that is 0.025–0.035.
Inventors:
MAO WEI (JP)
FUKUTANI KATSUYUKI (JP)
XIA XIAOMING (JP)
FUKUTANI KATSUYUKI (JP)
XIA XIAOMING (JP)
Application Number:
PCT/JP2021/007915
Publication Date:
September 10, 2021
Filing Date:
March 02, 2021
Export Citation:
Assignee:
UNIV TOKYO (JP)
NIHON SUISO CO LTD (JP)
NIHON SUISO CO LTD (JP)
International Classes:
H01M4/62; C01B32/05; H01M4/13; H01M4/131; H01M10/052
Domestic Patent References:
| WO2018221632A1 | 2018-12-06 |
Foreign References:
| JP2016096125A | 2016-05-26 | |||
| JP2015230884A | 2015-12-21 | |||
| JP2011195761A | 2011-10-06 | |||
| JP2004103546A | 2004-04-02 |
Attorney, Agent or Firm:
ONO Makoto et al. (JP)
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