Title:
SOLVENT-SOLUBLE POLYIMIDE COMPOUND, LITHIUM-ION SECONDARY BATTERY NEGATIVE ELECTRODE PRODUCING RESIN COMPOSITION INCLUDING SAID SOLVENT-SOLUBLE POLYIMIDE COMPOUND, LITHIUM-ION SECONDARY BATTERY NEGATIVE ELECTRODE CONFIGURED USING SAID LITHIUM-ION SECONDARY BATTERY NEGATIVE ELECTRODE PRODUCING RESIN COMPOSITION, AND LITHIUM-ION SECONDARY BATTERY PROVIDED WITH SAID LITHIUM-ION SECONDARY BATTERY NEGATIVE ELECTRODE
Document Type and Number:
WIPO Patent Application WO/2021/053800
Kind Code:
A1
Abstract:
[Problem]To provide a solvent-soluble polyimide compound with which the initial charge/discharge efficiency and the cycle characteristics of a lithium-ion secondary battery can be significantly improved. [Solution] A solvent-soluble polyimide compound according to the present invention is a solvent-soluble polyimide used as an electrode material for a lithium-ion secondary battery, and is characterized in that the solvent-soluble polyimide compound is a reactant of a carboxyl group-containing diamine and an acid anhydride, has an elastic modulus of at least 3.4 GPa.
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Inventors:
GOSHIMA TOSHIYUKI (JP)
WIN MAW SOE (JP)
HIBINO ATSUHIKO (JP)
NAKAYAMA MASASHI (JP)
MATSUMOTO MASAAKI (JP)
HIGASHIZAKI TETSUYA (JP)
WIN MAW SOE (JP)
HIBINO ATSUHIKO (JP)
NAKAYAMA MASASHI (JP)
MATSUMOTO MASAAKI (JP)
HIGASHIZAKI TETSUYA (JP)
Application Number:
PCT/JP2019/036819
Publication Date:
March 25, 2021
Filing Date:
September 19, 2019
Export Citation:
Assignee:
WINGO TECH CO LTD (JP)
DKS CO LTD (JP)
DKS CO LTD (JP)
International Classes:
H01M4/62; C08G73/10; C08L79/08; H01M4/13; H01M10/052
Domestic Patent References:
| WO2018105338A1 | 2018-06-14 | |||
| WO2015159966A1 | 2015-10-22 |
Foreign References:
| JP2007149604A | 2007-06-14 | |||
| JP2011048969A | 2011-03-10 | |||
| JP2010205609A | 2010-09-16 | |||
| JP2018118947A | 2018-08-02 | |||
| JP2019059959A | 2019-04-18 |
Attorney, Agent or Firm:
NAGAI Hiroshi et al. (JP)
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