/Positive Electrode Active Material And Preparation Method Therefor, Positive Electrode Plate, Battery, And Electrical Apparatus
Abstract
A positive electrode active material and a preparation method therefor, a positive electrode plate, a battery, and an electrical apparatus. The positive electrode active material includes a transition metal oxide and a coating layer. The coating layer is coated on at least part of the surface of the transition metal oxide. The coating layer includes a silicon-containing polymer. The silicon-containing polymer is formed by polymerizing a silane monomer derivative containing a first group and polysiloxane containing a second group. The first group is reactive with the second group. The molecular weight of the silane monomer derivative is less than that of the polysiloxane.
Full Text
What is claimed is:
A positive electrode active material and a preparation method therefor, a positive electrode plate, a battery, and an electrical apparatus. The positive electrode active material includes a transition metal oxide and a coating layer. The coating layer is coated on at least part of the surface of the transition metal oxide. The coating layer includes a silicon-containing polymer. The silicon-containing polymer is formed by polymerizing a silane monomer derivative containing a first group and polysiloxane containing a second group. The first group is reactive with the second group. The molecular weight of the silane monomer derivative is less than that of the polysiloxane.
Timeline
Filed
03/12/2026Published
07/16/2026Granted
Not AvailableIPC Codes(5)
H01M 4/525:of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
C01G 53/82:Compounds containing nickel, with or without oxygen or hydrogen, and containing two or more other elements
H01M 4/02:Electrodes composed of, or comprising, active material