▎ 摘　　要

NOVELTY - Preparing a particulate, electroactive and electronically conductive composite material involves providing a formulation of organic redox material, in the swollen state or dissolving in a solvent medium having dispersed electronically conductive nanostructured material, removing the solvent (s) from the solvent medium, and grinding the solid material in the form of a powder to form particulate composite material. USE - Method for preparing particulate composite material used as active material in electrode for electrochemical system, such as rechargeable electrochemical accumulator, e.g. an accumulator or a lithium battery (all claimed). ADVANTAGE - The particulate composite material enables to increase the surface capacity of electrodes and has reduced carbon content. The use of a composite material makes it possible to reduce the quantity of additional electronic conductors. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: (1) an electrode, which comprises particulate composite material as an active material; and (2) a method for preparing an electrode, which involves preparing a dispersion of particulate composite material and one or more electronically conductive additive (s) and/or binder (s) in an aqueous or organic medium, depositing the dispersion on the surface of a current collector, for example, of the aluminum strip type, and evaporating the aqueous or organic medium to form an electrode film.