COMPOSITE NEGATIVE ELECTRODE MATERIALS

摘要

Composite particles that include an electrochemically active metal phase, an insulating phase, and a conducting phase are provided that are useful active materials in negative electrodes for lithium-ion electrochemical cells. The electrochemically active phase includes silicon. Lithium-ion electrochemical cells are provided that include the provided composite particles as active materials in negative electrodes as well as methods of making the provided composite particles.