Title:
DISPERSING AGENT AND PREPARATION METHOD THEREFOR, SLURRY COMPOSITION AND PREPARATION METHOD THEREFOR, AND ELECTRODE SHEET AND DEVICE COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2024/007310
Kind Code:
A1
Abstract:
The present application provides a dispersing agent and a preparation method therefor, a slurry composition and a preparation method therefor, and an electrode sheet and an electric device comprising same. The dispersing agent comprises a block copolymer with a first block and a second block. The first block comprises a first repeating structural unit shown in formula I) and a second repeating structural unit shown in formula II), and the second block comprises a third repeating structural unit shown in formula III) and a fourth repeating structural unit shown in formula IV), wherein n is any integer from 1 to 25; R 1-R 7 are independently selected from hydrogen, halogen, cyano, carbonyl, carboxyl, nitryl, a sulfonic acid group, amide, an ester group, substituted or unsubstituted C1-C15 alkyl and alkoxy, and substituted or unsubstituted C6-C30 aryl, respectively; and the dipole moments of R 8, R 9, and R 10 are greater than 2×10-30 C·m. The dispersing agent can improve the stability of the slurry.
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Inventors:
ZHUO GUOPENG (CN)
XU YUNPENG (CN)
WU YANYING (CN)
WANG XINGHUI (CN)
XU YUNPENG (CN)
WU YANYING (CN)
WANG XINGHUI (CN)
Application Number:
PCT/CN2022/104663
Publication Date:
January 11, 2024
Filing Date:
July 08, 2022
Export Citation:
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
H01M4/139; C08F293/00
Foreign References:
| CN108699201A | 2018-10-23 | |||
| CN102983306A | 2013-03-20 | |||
| CN107591537A | 2018-01-16 | |||
| CN108431064A | 2018-08-21 | |||
| CN110896144A | 2020-03-20 | |||
| CN113795952A | 2021-12-14 | |||
| CN114641850A | 2022-06-17 | |||
| JP2018203795A | 2018-12-27 |
Attorney, Agent or Firm:
BEIJING EAST IP LTD. (CN)
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