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US 10,135,062 B2Granted
Fabrication and use of carbon-coated silicon monoxide for lithium-ion batteries
AssigneeNexeon Limited
InventorsMarie Kerlau, Sarah Goertzen
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Abstract
The present invention provides anode materials, methods of producing them, anodes, methods of producing them, electrochemical cells, and lithium-ion batteries, where the anode material comprises a silicon monoxide nanoparticle. In certain embodiments, the silicon monoxide is porous or mesoporous. In certain embodiments, the porous or mesoporous silicon additionally comprises other materials within its pores, such as lithium.
Claims25
An anode material, for mixing with a binder into a slurry during fabrication of a negative electrode of a lithium ion battery, the anode material comprising:
- nanoparticles, forming agglomerates, in a powder form,
- wherein each of the nanoparticles comprises a carbon-containing outer phase and a silicon monoxide inner phase,
- wherein the carbon-containing outer phase is covalently bonded to the silicon monoxide inner phase, and
- wherein the agglomerates comprise pores, having an average pore diameter from about 1 nm to 500 nm and disposed between the nanoparticles in the agglomerates.
1 more element
Dependencies are inferred from the claim text.