abstract |
(57) [Problem] To provide a composite oxide for a non-aqueous electrolyte secondary battery having a large electric capacity and a large charge / discharge cycle durability, which can be used in a wide voltage range, and has a short reaction time. Provide a low cost manufacturing method. SOLUTION: After melting a salt containing a lithium salt into a molten salt, a compound containing manganese is added to the molten salt and reacted. |