Electrodes: Metals as electrodes in aqueous and non-aqueous systems, metal nanoparticles. Collectors current. 3D, 2D, 1 D carbons, carbon nanomaterials. Organic semiconductors "Synthetic metals" - p-type, n-type. Inorganic semiconductors: oxides, selenides, sulfides, others. Intercalated electrodes. Mixed conductors (MIEC). Photo-active semiconductor materials. Electrolytes. Water electrolytes in commercial products. Electroactive redox systems for cells flow-through (RFC). Non-aqueous electrolytes. Polymer electrolytes and gel electrolytes. Membranes - polymeric-organic, inorganic. Solid crystalline electrolytes: proton conductors, conductors oxygen, monovalent cations, polyvalent cationic electrolytes. Organic Solid Conductors proton. The choice of the above materials results from the existing or potential use as such electrolyte and / or electrode in: primary cells (PrC), batteries (secondary cells) (SdC), flow cells (RFCs), fuel cells (FCs), electrolytic cells for reforming, for various types of electrochemical capacitors (ECaps), and hybrid interconnecting systems two types of electrodes - capacitor (ECaps) and secondary cell (SdC) in one device as well for use in photocapacitors (PhCaps) and in photoelectrochemical cells (PEC)