| CPC H01M 4/1391 (2013.01) [H01M 4/0404 (2013.01); H01M 4/0435 (2013.01); H01M 4/0471 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 4/661 (2013.01); H01M 10/0525 (2013.01); B05D 3/141 (2013.01); B05D 3/145 (2013.01); H01M 2004/028 (2013.01)] | 27 Claims |
|
1. A method of fabricating a Lithium-ion cell, the method comprising:
coating a cathode powder on a metal foil to produce a cathode-coated metal foil;
wherein the cathode powder comprises one or more cathode active materials;
wherein the cathode powder contains Lithium, Nickel, and Oxygen and the one or more cathode active materials have a chemical formula of Li(NixMnyCozAlw)O2, wherein 0.6≤x≤0.95, 0.02≤y≤0.2, 0≤z≤0.2, 0≤w≤0.1, and the Lithium is not lithium excess;
drying, by one or more dryer chambers, the cathode-coated metal foil, wherein each of the one or more dryer chambers is configured with a header, a solvent exhaust collection and a recovery system;
exposing, by at least one plasma chamber, the cathode-coated metal foil with treating material comprising nitrogen containing plasma having a nitrogen-containing reactive gas that reacts with the one or more cathode active materials to incorporate Nitrogen into the Lithium-ion cell's cathode, wherein the plasma is a near-atmospheric pressure plasma source ranging from about 0.5 to about 1.5 atmospheres pressure;
calendering or rolling the cathode-coated metal foil treated to incorporate the Nitrogen; and
placing the cathode-coated foil, treated to incorporate the Nitrogen, in a receptacle with a liquid electrolyte, to yield the Lithium-ion cell.
|