Separator, preparation method thereof, and secondary battery and electric apparatus related thereto
AssigneeContemporary Amperex Technology (Hong Kong) Limited
InventorsManxiang WEI, Jianrui YANG, Ming XU, Zhiwei XIAO
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Abstract
This application provides a separator, a preparation method thereof, and a secondary battery and an electric apparatus related thereto. The separator includes a substrate and a coating disposed on at least one surface of the substrate. The coating includes organosilicon particles, where a particle size by volume Dv90 of the organosilicon particles satisfies 0<Dv90≤3.0 μm.
Claims19
A separator, comprising a substrate and a coating disposed on at least one surface of the substrate, wherein the coating comprises organosilicon particles, a particle size by volume Dv90 of the organosilicon particles satisfying 0<Dv90≤3.0 μm.
A preparation method of a separator, comprising:
- S1, providing a substrate;
- S2, mixing organosilicon particles in a solvent to prepare a coating slurry;
- and
- S3, applying the coating slurry onto at least one surface of the substrate to form a coating, and performing drying to obtain a separator;
- wherein a particle size by volume Dv90 of the organosilicon particles satisfies 0<Dv90≤3.0 μm.
Dependencies are inferred from the claim text.