An LMFP composite positive electrode particle, which is used in a positive electrode of a solid-state or semi-solid battery. The composite positive electrode particle includes an LMFP particle and a conductive layer coated on an outer surface of the LMFP particle. The conductive layer includes a…

A method for manufacturing LMFP composite positive electrode particles includes the steps of: placing a plurality of lithium ion conductor particles and LMFP particles, a carbon source and a first dispersant into a ball mill for mixing to form a mixed slurry, wherein each of the lithium ion…

An oxide particle coated with amino groups, which is a composite LLZO particle; the composite LLZO particle includes a first LLZO particle. A hydroxide ion layer is coated on an outer surface of the first LLZO particle. The hydroxide ion layer and the first LLZO particle form a second order LLZO…

A composite cathode particle based on a ternary oxide for an electrochemical battery, wherein the electrochemical battery is a solid-state battery or semi-solid battery. The composite cathode particle includes a large NCM (lithium nickel manganese cobalt oxide) particle. An outer surface of the…