#6597. Electrochemically converting micro-sized industrial Si/FeSi2 to nano Si/FeSi for the high-performance lithium-ion battery anode

January 2027publication date
Proposal available till 05-06-2025
4 total number of authors per manuscript0 $

The title of the journal is available only for the authors who have already paid for
Journal’s subject area:
Nuclear Energy and Engineering;
Materials Science (miscellaneous);
Energy Engineering and Power Technology;
Fuel Technology;
Renewable Energy, Sustainability and the Environment;
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Abstract:
Low-cost silicon (Si) feedstocks and a facile method to downsize the particle size are two determinants for the application of Si for the lithium-ion battery anode. Among various Si feedstocks, the industrial bulk ferrosilicon (b-Si/FeSi2) alloy is a promising Si resource, but decreasing the particle size and increasing the utilization of Si remain challenging. Herein, we report a self-driven alloying-electrochemical dealloying approach to converting the b-Si/FeSi2 to nano-sized Si/FeSi (n-Si/FeSi) in molten salts using Mg to extract one Si atom from one FeSi2 molecule by breaking down the FeSi–Si chemical bond and simultaneously forming Mg2Si.
Keywords:
Alloying/dealloying; Energy storage; Ferrosilicon alloy; Molten salt; Nanoporous Si

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