CPC H01M 4/0447 (2013.01) [H01M 4/386 (2013.01); H01M 10/0525 (2013.01); H01M 10/446 (2013.01)] | 20 Claims |
9. A method of forming a battery, the method comprising:
subjecting a battery comprising an anode, a nickel oxide containing cathode, and an electrolyte to a formation process, the anode comprising greater than 50% silicon, wherein the formation process comprises, for at least one cycle:
charging the battery at a 1 C rate to at least a formation charge threshold of 3.8 volts or greater until a current in the battery reaches C/20; and
discharging the battery to at least a formation discharge threshold of less than 2.5 volts, wherein the formation discharge threshold is lower than a discharge threshold used during normal operation of the battery.
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