H ELECTRICITY
H01 ELECTRIC ELEMENTS
H01M PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4/00 Electrodes
H01M4/02 Electrodes composed of, or comprising, active material
H01M4/36 Selection of substances as active materials, active masses, active liquids
H01M4/48 of inorganic oxides or hydroxides
H01M4/505 of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy