Electrode materials with high surface conductivity
AssigneesACEP Inc., Cnrs, Universite de Montreal
InventorsNathalie Ravet, Simon Besner, Martin Simoneau, Alain Vallee, Michel Armand, Jean-Francois Magnan
Life of this patent
Estimating the term…
Abstract
The present invention concerns electrode materials capable of redox reactions by electron and alkali-ion exchange with an electrolyte. The applications are in the field of primary (batteries) or secondary electrochemical generators, supercapacitors and light modulating systems of the electrochromic type.
Claims38
An electrode material that is reversible to alkali ions comprising at least one complex oxide comprising the formula AaMmZzOoNnFf wherein:
- A comprises at least one alkali metal;
- M comprises at least one transition metal;
- Z comprises at least one non-metal;
- O is oxygen;
- N is nitrogen;
- F is fluorine;
- wherein the coefficients a, m and z>0;
- wherein at least one of o, n and f>0;
- and
- wherein at least a portion of a surface of the complex oxide comprises a carbonaceous material.
An electrochemical cell comprising an electrode material that is reversible to alkali ions comprising at least one complex oxide comprising the formula AaMmZzOoNnFf wherein:
- A comprises at least one alkali metal;
- M comprises at least one transition metal;
- Z comprises at least one non-metal;
- O is oxygen;
- N is nitrogen;
- F is fluorine;
- wherein the coefficients a, m and z>0;
- wherein at least one of o, n and f>0;
- and
- wherein at least a portion of a surface of the complex oxide comprises a carbonaceous material.
Dependencies are inferred from the claim text.