A123 Systems LLC

Fu Zhou

Anil Parmar

Lixin Wang

Methods and systems are provided for a battery cathode material comprising greater than or equal to 60% nickel content, the cathode material having at least one metal doped therein. In one example, a method comprises doping the at least one metal into the cathode material using water as a solvent, wherein the at least one metal has an ionic radii greater than 60 picometers. The at least one metal may be selected from strontium (Sr), barium (Ba), rubidium (Rb), cesium (Cs), zirconium (Zr), niobium (Nb), molybdenum (Mo), technetium (Tc), ruthenium (Ru), tungsten (W), platinum (Pt), neodymium (Nd), yttrium (Y), and cerium (Ce).

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Sichuan, China

Fu Zhou