▎ 摘　　要

NOVELTY - Method for producing composite particles involves imparting hydrophilicity and anionity to active material particles to produce hydrophilic particles, adhering a cationic organic substance to prepare particles having the cationic organic substance adhered to the surface of the active material particles by bringing the hydrophilic particles into contact with a cationic organic substance, and producing composite-adhered particles in which a composite of the cationic organic substance and the anionic carbon material is attached to the surface of the active material particles by bringing anionic carbon material into contact with the surface of the cationic organic substance-adhered particles. USE - The method is used for producing composite particles (claimed), which are used in power storage devices. ADVANTAGE - The composite particles can be more easily produced from active material particles so that the conductive material or the precursor of the conductive material is less likely to be dispersed. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for composite particles comprising a cationic organic substance and an anionic carbon material adhered to the surface of the active material particles, where the active material particles are a carbon material, a silicon material, a lithium alloy, a tin compound, a lithium titanium composite oxide and/or a lithium vanadium.