Cathode materials for secondary (rechargeable) lithium batteries

摘要

The invention relates to materials for use as electrodes in an alkali-ion secondary (rechargeable) battery, particularly a lithium-ion battery. The invention provides transition-metal compounds having the ordered-olivine or the rhombohedral NASICON structure and the polyanion (PO4)3−as at least one constituent for use as electrode material for alkali-ion rechargeable batteries.