Back to results
US 11,777,077 B2Granted
Silicon particles for battery electrodes
AssigneeEnevate Corporation
InventorsBenjamin Yong Park, Jill R. Pestana, Xiaohua Liu, Frederic Bonhomme
Life of this patent
Estimating the term…
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.
Claims20
A method comprising:
- forming a mixture comprising a liquid and a silicon material, wherein a silicon particle of the silicon material comprises an outer region with a first concentration of aluminum;
- and
- drying the mixture to form a treated silicon material in which the outer region of the silicon particle has a second concentration of aluminum that differs from the first concentration of aluminum.
A method comprising:
- forming a mixture comprising an oxidizing agent and a silicon material, wherein a silicon particle of the silicon material comprises an outer region with a first concentration of aluminum;
- and
- drying the mixture to form a treated silicon material in which the outer region of the silicon particle has a second concentration of aluminum that differs from the first concentration of aluminum.
Dependencies are inferred from the claim text.