PEO film, preparation method thereof, and solid-state battery
AssigneeCALB Technology Co., Ltd.
InventorsKangping Wang, Chen Cao, Chao Chen, Xu Li, Yang Li
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Abstract
The disclosure relates to the battery field and a PEO film, a preparation method thereof, and a solid-state battery are provided. A molecular structure of the PEO film includes a structural unit B, and the structural unit B includes —CH═CH—O—.
Claims11
A PEO film, wherein a molecular structure of the PEO film comprises a structural unit B, and the structural unit B is —CH═CH—O— or —R1—CH═CH—O—, wherein R1 is selected from a C1 to C10 linear alkyl group or a C2 to C10 linear alkenyl group, and wherein the molecular structure of the PEO film comprises a structural unit D, and the structural unit D is —C2H3F—O— or —R2—C2H3F—O—, wherein R2 is selected from a C1 to C10 linear alkyl group.
A preparation method of a PEO film, wherein the preparation method comprises the following steps:
- performing a copolymerization reaction of an ethylene oxide monomer and an F-containing cyclic ether monomer to obtain a polymer precursor containing a structural unit D, wherein the structural unit D is —C2H3F—O— or —R2—C2H3F—O—, wherein R2 is selected from a C1 to C10 linear alkyl group;
- performing a F removal treatment on part of the structural unit D of the polymer precursor to form polymer glue containing a structural unit B, performing a film forming treatment on the polymer glue to obtain the PEO film, wherein the structural unit B is —CH═CH—O— or —R1—CH═CH—O—, wherein R1 is selected from a C1 to C10 linear alkyl group or a C2 to C10 linear alkenyl group.
Dependencies are inferred from the claim text.