The present invention relates generally to electrodes for use in electrochemical devices, and more particularly, to coated electrode particles for use in solid electrochemical cells, and to materials and systems for improving electronic conductivity and repulsive force characteristics of an electrode network. The present invention also relates to an article comprising a plurality of electroactive particles that form an electrode network wherein the electroactive particles are coated with a system of electrically conductive and low refractive index materials.