H
ELECTRICITY
H01
ELECTRIC ELEMENTS
H01M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
H01M4/02
Electrodes composed of, or comprising, active material
H01M4/36
Selection of substances as active materials, active masses, active liquids
H01M4/58
of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
H01M4/581
Chalcogenides or intercalation compounds thereof