Non-aqueous electrolyte secondary battery and method of manufacturing the same

摘要

A non-aqueous electrolyte secondary battery is disclosed, which hardly causes deterioration of its properties at high temperatures. The battery has a chargeable and dischargeable cathode, a chargeable and dischargeable anode, and a non-aqueous electrolyte and includes a substance which produces either one of water and gaseous carbon dioxide with an increase in temperature in any one of the cathode, the anode, the non-aqueous electrolyte, other elements, and voids in the battery. Examples of the substance which produces water include hydroxides and compounds having water of crystallization. Examples of the substance which produces gaseous carbon dioxide include carbonates and hydrogencarbonates.