LITHIUM BORATE COMPOUND AND METHOD FOR PRODUCING SAME

摘要

This method for producing a lithium borate compound reacts a lithium-containing-fused-salt starting material containing at least lithium nitrate, a transition-metal-containing starting material containing at least one component selected from the group consisting of pure iron, pure manganese, and a compound containing iron and/or manganese, and boric acid in the fused salt of the lithium-containing-fused-salt starting material in a mixed gas ambient containing carbon dioxide and a reducing gas and at a temperature that is between the melting point of the lithium-containing-fused-salt starting material and 900°C inclusive. As a result, it is possible to produce a material having superior performance, improved capacity and the like, and cycling characteristics near room temperature as a lithium borate material that is useful as a positive electrode material for a lithium ion secondary battery.