TECHNOLOGY FOCUS - ELECTRONICS - Preferred Arrangement: The electric power generation portion of battery is covered with a laminate film (5) comprising gas flowing interruption property metal film and insulating resin film.    TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Material: A material containing polymer resin, carbon, amorphous carbon and/or glassy carbon is covered on at least one portion of the electric power generation portion. Preferred Medium: Both acid medium and basic medium contain reacting substance. The reacting substance of acid medium and basic medium are same substance. The reacting substance is hydrogen peroxide. The acid medium consists of aqueous acid. The basic medium consists of basic aqueous solution. The acid medium is obtained using acidic ion exchange material or acidic ionic conductive gel. The basic medium is obtained using basic ion exchange material or basic ionic conductive gel. The acid medium is paste containing aqueous acid and carbon group powder. The basic medium is paste containing basic aqueous solution and carbon group powder. Preferred Component: The aqueous acid contains acid chosen from sulfuric acid, methanesulfonic acid, hydrochloric acid, hydroiodic acid, hydrobromic acid, perchloric acid, periodic acid, orthophosphoric acid, polyphosphoric acid, tetra fluoroboric acid, hydrogen hexafluorosilicate, hexafluoro phosphate, acetic acid, citric acid, oxalic acid, salicylic acid, tartaric acid, maleic acid, malonic acid, phthalic acid and fumaric acid. The basic aqueous solution contains base chosen from sodium hydroxide, potassium hydroxide, calcium hydroxide, barium hydroxide, magnesium hydroxide, ammonium hydroxide, hydration tetramethyl ammonium, hydration tetraethyl ammonium, hydration tetrapropyl ammonium and hydration tetrabutyl ammonium, or alkali metal salt chosen from sodium carbonate, sodium hydrogencarbonate, potassium carbonate, potassium hydrogencarbonate, sodium borate, potassium borate, specific silicate, potassium silicate, sodium tripolyphosphate, potassium tripolyphosphate, sodium aluminate and potassium aluminate. The electrodes (1,3) are obtained using a material containing carbon, amorphous carbon and/or glassy carbon. The electrodes (1,3) have plate shape, thin film shape, mesh shape or fibrous form. The acid and basic mediums are provided by non-electrolytic plating, vapor deposition method or sputtering method. Preferred Gel: The acidic ionic conductive gel is obtained by gelatinizing aqueous acid using cross-linked polyacrylic acid, agar or its salt. The basic ionic conductive gel is obtained by gelatinizing basic aqueous solution using carboxymethyl cellulose, cross-linked polyacrylic acid or its salt.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Material: A material containing polymer resin, carbon, amorphous carbon and/or glassy carbon is covered on at least one portion of the electric power generation portion. Preferred Medium: Both acid medium and basic medium contain reacting substance. The reacting substance of acid medium and basic medium are same substance. The reacting substance is hydrogen peroxide. The acid medium consists of aqueous acid. The basic medium consists of basic aqueous solution. The acid medium is obtained using acidic ion exchange material or acidic ionic conductive gel. The basic medium is obtained using basic ion exchange material or basic ionic conductive gel. The acid medium is paste containing aqueous acid and carbon group powder. The basic medium is paste containing basic aqueous solution and carbon group powder. Preferred Component: The aqueous acid contains acid chosen from sulfuric acid, methanesulfonic acid, hydrochloric acid, hydroiodic acid, hydrobromic acid, perchloric acid, periodic acid, orthophosphoric acid, polyphosphoric acid, tetra fluoroboric acid, hydrogen hexafluorosilicate, hexafluoro phosphate, acetic acid, citric acid, oxalic acid, salicylic acid, tartaric acid, maleic acid, malonic acid, phthalic acid and fumaric acid. The basic aqueous solution contains base chosen from sodium hydroxide, potassium hydroxide, calcium hydroxide, barium hydroxide, magnesium hydroxide, ammonium hydroxide, hydration tetramethyl ammonium, hydration tetraethyl ammonium, hydration tetrapropyl ammonium and hydration tetrabutyl ammonium, or alkali metal salt chosen from sodium carbonate, sodium hydrogencarbonate, potassium carbonate, potassium hydrogencarbonate, sodium borate, potassium borate, specific silicate, potassium silicate, sodium tripolyphosphate, potassium tripolyphosphate, sodium aluminate and potassium aluminate. The electrodes (1,3) are obtained using a material containing carbon, amorphous carbon and/or glassy carbon. The electrodes (1,3) have plate shape, thin film shape, mesh shape or fibrous form. The acid and basic mediums are provided by non-electrolytic plating, vapor deposition method or sputtering method. Preferred Gel: The acidic ionic conductive gel is obtained by gelatinizing aqueous acid using cross-linked polyacrylic acid, agar or its salt. The basic ionic conductive gel is obtained by gelatinizing basic aqueous solution using carboxymethyl cellulose, cross-linked polyacrylic acid or its salt.    TECHNOLOGY FOCUS - POLYMERS - Preferred Material: The ion exchange material is ion exchange resin of polyvinyl styrene group, polymeric electrolyte film of polyfluoro hydrocarbon polymer group, ion-exchange membrane of polyvinyl styrene group, and/or ion-exchange filter paper of fibrous polystyrene group.