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US 8,999,579 B2Granted
Surface treated anode active material and method of making the same, anode including the same, and lithium battery including the same
AssigneeSamsung SDI Co., Ltd.
InventorsJoung-won Park, Yoon-sok Kang, Han-su Kim, Jae-gu Yoon, Gue-sung Kim
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Abstract
An anode includes a collector; and an anode active material layer disposed on the collector comprises an anode active material, which is lithium oxide coated Li4Ti5O12, a conductive material, and a binder, wherein the lithium oxide intercalates and/or deintercalates lithium ions into and from the lattice structure of Li4Ti5O12. By coating the surface of the anode active material with lithium oxide, an anode including the surface-treated anode active material has a high capacity, high-rate properties, and a high initial efficiency.
Claims10
An anode, comprising:
- a collector;
- and
- an anode active material layer disposed on the collector, the anode active material layer comprising:
- an anode active material comprising Li4Ti5O12 coated with a lithium oxide that intercalates and deintercalates lithium ions into and from the Li4Ti5O12,
- a conductive material, and
- a binder,
- wherein the lithium oxide is present at 0.01 to 0.6 wt % based on the weight of the anode active material.
4 more elements
Dependencies are inferred from the claim text.