公开(公告)号：WO2023025941A1

公开(公告)日：2023-03-02

申请号：PCT/EP2022/073790

申请日：2022-08-26

Applicant: CAMBRIDGE ENTERPRISE LIMITED

Inventor： SLAUGHTER, Jonathan ,  GONZALEZ, Victor Riesgo ,  WRIGHT, Dominic ,  GREY, Clare

IPC: H01M4/04 ,  H01M4/52 ,  H01M4/583 ,  H01M4/62

Abstract: The invention relates to a method for coating an electrode active material with a metal oxide, a method for doping an electrode active material, and coated and doped electrode active materials produced by the methods. The coated and doped electrode active materials can be used in electrochemical cells. The method for coating an electrode active material comprises providing a coating composition comprising an organic solvent and a bimetallic alkoxide, depositing the coating composition to the surface of the electrode active material, and calcining the electrode active material to provide a coating of bimetallic oxide on the surface of the electrode active material. Compared to using two separate metal coating precursors, the bimetallic alkoxide acts as a single-source coating precursor, which provides a highly-uniform coating, accurate control of coating thickness and metal stoichiometry.