Patent ID: 8187746

Claim:
An active material for an electrochemical device wherein a surface of the active material is modified by a surface modification agent; wherein the surface modification agent is a silane, and the silane has Formula I, II, III, IV, or a mixture of any two or more thereof: wherein: X 1 , X 2 , X 3 and X 4 are independently —Cl or —Br; R 1 , R 2 , and R 3 are independently a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, an OR 5 group, or a group of Formula V; R 5 is a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aryl group; and the surface modification agent is chloro[2-[2-(2-methoxyethoxy)ethoxy]ethoxy]dimethylsilane.