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US 10,476,070 B2Granted
Anode and battery
AssigneeMurata Manufacturing Co., Ltd.
InventorsTakakazu Hirose, Masayuki Iwama, Kenichi Kawase
Life of this patent
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Abstract
A battery capable of improving the cycle characteristics is provided. The battery includes a cathode, an anode, and an electrolytic solution. The anode includes an anode active material layer containing an anode active material having silicon as an element, and a coating layer that coats the anode active material layer, and contains an oxide of a 3d transition metal element at least one selected from the group consisting of iron, cobalt, and nickel.
Claims22
An anode comprising:
- an anode active material layer having opposed first and second surfaces and containing an anode active material comprising a silicon material;
- and
- a coating layer that coats the first surface of the anode active material layer, the coating layer containing an oxide selected from the group consisting of FeO, CoO, NiO and combinations thereof,
- wherein the silicon material is
- an alloy of silicon including at least one selected from the group consisting of tin, cobalt, manganese, zinc, indium, silver, germanium, bismuth and chromium, or
- a compound of silicon including oxygen and carbon.
3 more elements
Dependencies are inferred from the claim text.