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US 2021/0202944 A1Published application
Composite anode active material, method of preparing the same, and lithium secondary battery including anode including composite anode active material
AssigneeUnist (Ulsan National Institute of Science and Technology)
InventorsJae Phil Cho, Yeong Uk Son, Ji Young Ma, Nam Hyung Kim
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Abstract
Provided herein is a composite anode active material including: a porous carbon structure; a first coating layer on the porous carbon structure and including a non-carbonaceous material capable of intercalating and deintercalating lithium; and a second coating layer on the first coating layer and including a carbonaceous material.
Claims8
A method of preparing a composite anode active material, the method comprising:
- spray-drying a solution including a carbon source and a pore-forming agent to obtain a composite structure;
- etching the composite structure to form a porous composite structure;
- providing a non-carbonaceous material to the porous composite structure to form a first coating layer on a surface of the porous composite structure;
- and
- providing a carbon precursor to the first coating layer to form a second coating layer on the first coating layer arranged on the surface of the porous composite structure.
2 more elements
Dependencies are inferred from the claim text.