Nanostructured battery active materials and methods of producing same
AssigneeOneD Material, Inc.
InventorsWanqing Cao, Virginia Robbins, Yimin Zhu
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Abstract
Methods for producing nanostructures from copper-based catalysts on porous substrates, particularly silicon nanowires on carbon-based substrates for use as battery active materials, are provided. Related compositions are also described. In addition, novel methods for production of copper-based catalyst particles are provided. Methods for producing nanostructures from catalyst particles that comprise a gold shell and a core that does not include gold are also provided.
Claims38
A composition comprising a porous substrate and a population of silicon nanowires attached thereto, wherein the porous substrate comprises a population of graphite particles, wherein the population of graphite particles is porous, and wherein one end of each of the nanowires is attached to the porous substrate, the other end of each of the nanowires comprising copper, a copper compound, and/or a copper alloy.
A composition comprising a porous substrate and a population of silicon nanowires attached thereto, wherein the porous substrate comprises a population of graphite particles, and wherein one end of each of the nanowires is attached to the porous substrate, the other end of each of the nanowires comprising copper, a copper compound, and/or a copper alloy, wherein silicon accounts for between 1 and 50% of the total weight of the nanowires and the graphite particles.
Dependencies are inferred from the claim text.