Cathode Active Material Comprising Lithium Peroxide, Cathode for a Lithium-Ion Battery, Lithium-Ion Battery, and Use of Coated Lithium Peroxide in a Lithium-Ion Battery

A cathode active material comprises lithium peroxide, wherein the lithium peroxide is provided at least in part with a coating, and wherein the coating comprises a non-metal inorganic compound. Furthermore, a cathode for a lithium-ion battery, and a lithium-ion battery, are specified, which comprise such a cathode active material. In addition, the use of coated lithium peroxide in the production of a lithium-ion battery is described.