| abstract |
Provided is a method capable of producing a lithium borate-based material having excellent performance, which is useful as a positive electrode material for a lithium ion secondary battery and the like, with improved cycle characteristics, capacity, and the like, by a relatively simple means. The present production method is a divalent iron compound in a reducing atmosphere in a molten salt of a carbonate mixture consisting of at least one alkali metal carbonate and lithium carbonate selected from the group consisting of potassium carbonate, sodium carbonate, rubidium carbonate and cesium carbonate, and A divalent metal compound, boric acid, and lithium hydroxide containing at least one compound selected from the group consisting of divalent manganese compounds are reacted at 400 to 650 占 폚. |