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US 8,785,043 B2Granted
Cathode materials for secondary (rechargeable) lithium batteries
AssigneeHydro-Quebec
InventorsMichel Armand, John B. Goodenough, Akshaya K. Padhi, Kirakodu S. Nanjundaswamy, Christian Masquelier
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Abstract
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.
Claims26
A secondary battery comprising:
- at least one cathode comprising one or more compounds, at least one of the compounds with an olivine structure comprising the general formula LiMPO4, wherein M comprises Co, Fe, Mn, Ti, or Ni;
- and
- at least one lithium anode.
A secondary battery comprising:
- at least one cathode comprising one or more compounds, at least one of the compounds with an olivine structure comprising the general formula LiMPO4, wherein M comprises Co, Fe, Mn, Ti, or Ni partially substituted with at least one other metal;
- and
- at least one lithium anode.
Dependencies are inferred from the claim text.