| abstract |
PROBLEM TO BE SOLVED: To provide a battery including an electrochemically active cathode material. An electrochemically active cathode material comprises beta delithiumized layered nickel oxide. The beta delithiated layered nickel oxide has the chemical formula Li x A y N 1 + az M z O 2 ยท nH 2 O, where x is from about 0.02 to about 0.20 and y is about 0.03. From about 0.20, a is about 0 to about 0.2, z is about 0 to about 0.2, n is about 0 to about 1, A is an alkali metal, and the alkali metals are potassium and rubidium. , Cesium, and any combination thereof, in the chemical formula, M comprises an alkaline earth metal, a transition metal, a non-transition metal, and any combination thereof. [Selection diagram] None |