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US 11,309,536 B2Granted
Silicon particles for battery electrodes
AssigneeEnevate Corporation
InventorsBenjamin Yong Park, Jill R. Pestana, Xiaohua Liu, Frederic Bonhomme
Life of this patent
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Abstract
Silicon particles for use in an electrode in an electrochemical cell are provided. The silicon particles may have outer regions extending about 20 nm deep from the surfaces, the outer regions comprising an amount of aluminum such that a bulk measurement of the aluminum comprises at least about 0.01% by weight of the silicon particles. The bulk measurement of the aluminum may provide the amount of aluminum present at least in the outer regions.
Claims17
A material comprising:
- silicon particles;
- wherein each silicon particle comprises a bulk material comprising an inner region and an outer region that extends from a surface of the bulk material to the inner region, the bulk material comprises silicon and aluminum, and a concentration of aluminum in the outer region of the bulk material differs from a concentration of aluminum in the inner region of the bulk material.
Dependencies are inferred from the claim text.