Abstract: The present invention provides a cell that has a high theoretical voltage and theoretical capacity, and can be discharged and recharged multiple times. The cell includes a cathode, an anode, and an electrolyte, wherein the cathode contains a cathode active material containing an alkali metal compound represented by the formula (1): AxOy??(1) (wherein A is an alkali metal atom, x is 0.5 to 2.5, and y is 0.5 to 2.5), the anode contains an anode active material containing at least one selected from the group consisting of an alkali metal, tin, titanium, boron, nitrogen, silicon, and carbon, and the cathode, the anode, and the electrolyte are hermetically sealed in the cell.

Abstract: The present invention provides a cell that has a high theoretical voltage and theoretical capacity, and can be discharged and recharged multiple times. The cell includes a cathode, an anode, and an electrolyte, wherein the cathode contains a cathode active material containing an alkali metal compound represented by the formula (1): AxOy??(1) (wherein A is an alkali metal atom, x is 0.5 to 2.5, and y is 0.5 to 2.5), the anode contains an anode active material containing at least one selected from the group consisting of an alkali metal, tin, titanium, boron, nitrogen, silicon, and carbon, and the cathode, the anode, and the electrolyte are hermetically sealed in the cell.

Abstract: The present invention provides a new rocking-chair-type battery employing oxygen ions as a charge shuttle that can be used to replace lithium ion batteries. The battery of the present invention is an oxygen shuttle battery comprising two electrodes that are comprised of a compound capable of oxygen intercalation at least in part and an electrolyte permeable to oxygen atoms that is present between the two electrodes. The compound capable of oxygen intercalation is, for example, at least one compound selected from the compound denoted by the general formula AMOz, where A denotes 1 or 2 or more monovalent elements, divalent elements, or trivalent elements, and M denotes 1 or 2 or more monovalent elements, divalent elements, or trivalent elements, with 2.0<Z?3.0.