One-step method for preparing a lithiated silicon electrode
AssigneeGM Global Technology Operations LLC
InventorsGayatri Vyas Dadheech, Mei Cai
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Abstract
In a one-step method for preparing a lithiated silicon electrode, a suspension of a lithium precursor and a silicon precursor in a carrier liquid is plasma sprayed without a carrier gas. The carrier liquid is water, alcohol, ethylene glycol, or mixtures thereof. The lithium precursor is selected from the group consisting of a lithium phosphate, a lithium nitrate, a lithium sulfate, a lithium carbonate, and combinations thereof. The suspension excludes an active carbon material and a binder.
Claims20
A one-step method for preparing a lithiated silicon electrode, the one step method comprising:
- plasma spraying, without a carrier gas, a suspension of a lithium precursor particle and a silicon precursor particle in a carrier liquid of water, alcohol, ethylene glycol, or mixtures thereof, the lithium precursor particle being selected from the group consisting of a lithium phosphate, a lithium nitrate, a lithium sulfate, a lithium carbonate, and combinations thereof, the silicon precursor particle and the suspension excluding an active carbon material and a binder.
A one-step method for preparing a lithiated silicon electrode, the one step method comprising:
- plasma spraying, without a carrier gas, a suspension of a lithium precursor nanopowder particle having an average diameter of less than or equal to about 100 nm and a silicon precursor nanopowder particle having an average diameter of less than or equal to about 100 nm in a carrier liquid of water, alcohol, ethylene glycol, or mixtures thereof, the lithium precursor being selected from the group consisting of a lithium phosphate, a lithium nitrate, a lithium sulfate, a lithium carbonate, and combinations thereof, the silicon precursor particle and the suspension excluding an active carbon material and a binder.
Dependencies are inferred from the claim text.