| CPC H01M 4/366 (2013.01) [H01M 4/485 (2013.01); H01M 4/628 (2013.01); H01M 10/052 (2013.01); H01M 10/0525 (2013.01); H01M 2004/021 (2013.01); H01M 2004/027 (2013.01)] | 20 Claims |
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1. A lithium battery comprising:
a cathode;
an anode comprising
a current collector,
a first anode layer disposed on the current collector,
a second anode layer disposed on the first anode layer, and
an inorganic protection layer disposed on the second anode layer,
wherein the first anode layer is between the current collector and the second anode layer,
wherein the second anode layer comprises lithium metal or a lithium metal alloy and is between the first anode layer and the inorganic protection layer,
wherein an oxidation/reduction potential of the first anode layer is greater than that of an oxidation/reduction potential of the second anode layer,
wherein the inorganic protection layer comprises a metal oxide, a metal nitride, a metal nitrate, a metal carbide, a lithiated compound thereof, or a combination thereof; or a ceramic electrolyte,
wherein a density of the lithium metal or the lithium alloy is 0.45 grams per cubic centimeter or less,
wherein a thickness of the first anode layer is less than a thickness of the second anode layer; and
an electrolyte between the cathode and the anode.
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