Patent ID: 11905421
Assignee: IONOBELL, INC.
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  B  Y | IPC B  C

Claim 4:
5. A method for manufacturing a silicon material comprising:
receiving a plurality of porous silicon nanoparticles with a characteristic size between about 2 and 100 nm; and
cold welding the plurality of porous silicon nanoparticles into an aggregated silicon particle by ball milling the plurality of porous silicon nanoparticles for between 10 minutes and 6 hours at a milling speed between 500 and 1500 rpm, wherein the aggregated silicon particle comprises a characteristic size between about 1 μm and 10 μm, wherein a porous silicon nanoparticle of the porous silicon nanoparticles comprises a polyhedral morphology, wherein the plurality of porous silicon nanoparticles are ball milled in a ball mill wherein walls of the ball mall are cooled using liquid nitrogen.