Title:
POSITIVE ELECTRODE SLURRY, POSITIVE ELECTRODE SHEET, AND SECONDARY BATTERY COMPRISING POSITIVE ELECTRODE SHEET
Document Type and Number:
WIPO Patent Application WO/2023/216101
Kind Code:
A1
Abstract:
The present invention provides a positive electrode slurry comprising polyether polyol. The structural formula of the polyether polyol is as follows: R1, R2, R3, R4, R5, and R6 are each independently selected from-H, hydroxyl, halogen, C2-10 alkyl, C2-10 alkoxy, or XM, and X is selected from -O-, -S-, or -NH-; M has the following structural formula: -(CH2-CHR-O)nD, wherein n is an integer of 10-2000, D is H or C1-8 alkyl, and each R is independently selected from H, halogen, hydroxyl, halogenated C1-8 alkyl, R7, -OR7 or R7OR8; R7 and R8 are each independently selected from linear or branched C1-8 alkyl, phenyl, C1-8 alkyl substituted phenyl, C1-8 alkoxy substituted phenyl or halogenated phenyl. By adding the polyether polyol in the present application, the coating weight of a positive electrode sheet can be improved, so that the energy density of a battery is improved.
Inventors:
WU QIFAN (CN)
ZHANG MING (CN)
ZHANG MING (CN)
Application Number:
PCT/CN2022/091948
Publication Date:
November 16, 2023
Filing Date:
May 10, 2022
Export Citation:
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
H01M4/02
Foreign References:
| CN110627997A | 2019-12-31 | |||
| CN101077964A | 2007-11-28 | |||
| CN113243055A | 2021-08-10 | |||
| CN105336914A | 2016-02-17 | |||
| CN114361452A | 2022-04-15 | |||
| US20050231894A1 | 2005-10-20 |
Attorney, Agent or Firm:
PEKSUNG INTELLECTUAL PROPERTY LTD. (CN)
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