Title:
ACTIVE MATERIAL HAVING SURFACE COAT LAYER, ELECTRODE COMPRISING SAME, AND ELECTRICITY STORAGE DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/090656
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing an active material which is capable of improving the cycle characteristics of a lithium ion battery. In order to solve this problem, the gist of the present invention is an active material which has, on the surface thereof, a surface coat layer that is formed of at least one resin selected from the group consisting of a polyimide precursor, a polyimide, a polyamide imide, a polyamide and a polysiloxane, wherein the resin contains a siloxane structure represented by general formula (1). (In general formula (1), each of R1 and R2 independently represents a hydrogen atom, a hydroxyl group or a monovalent organic group having from 1 to 20 carbon atoms; and n1 represents an integer from 1 to 10,000.)
Inventors:
CHAYAMA NATSUKO (JP)
YUBA TOMOYUKI (JP)
TOMABECHI SHIGEHISA (JP)
YUBA TOMOYUKI (JP)
TOMABECHI SHIGEHISA (JP)
Application Number:
PCT/JP2020/038889
Publication Date:
May 14, 2021
Filing Date:
October 15, 2020
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
H01M4/36
Domestic Patent References:
| WO2017073766A1 | 2017-05-04 |
Foreign References:
| JP2011086480A | 2011-04-28 | |||
| JP2012195198A | 2012-10-11 | |||
| JP2014010998A | 2014-01-20 |
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