METHOD FOR PRODUCING LITHIUM - MANGANESE BASED COMPOSITE OXIDE

摘要

PROBLEM TO BE SOLVED: To prepare a lithium - nickel - manganese composite oxide by using hydrothermal reaction. SOLUTION: Na type birnessite is treated with a dilute acid and Na ions are substituted with H ions. Next, the birnessite is contacted with an organic amine compound, and organic amine ions and organic amine molecules are introduced into the spaces among the layers of the birnessite, and peeling is perfomred per layer to form nanosheets. The peeled nanosheets are contacted with Ni ions, and are cured in an autoclave into the precursor of a lithium - nickel - manganese composite oxide. The precursor is reacted with Li ions in an autoclave to prepare a lithium - nickel - manganese composite oxide.