Behavior of germanium and silicon nanowire anodes with ionic liquid electrolytes
The electrochemical behavior of binder-free, germanium and silicon nanowires as high-
capacity anode materials for lithium-ion battery systems is investigated in an ionic liquid
electrolyte. Cyclic voltammetry, cycling tests, and impedance spectroscopy reveal a highly
reversible lithium alloying/dealloying process, as well as promising compatibility between
the Ge and Si materials and the electrolyte components. Reversible capacities of 1400 and
2200 mA hg–1 are delivered by the Ge and Si anodes, respectively, matching the values …
capacity anode materials for lithium-ion battery systems is investigated in an ionic liquid
electrolyte. Cyclic voltammetry, cycling tests, and impedance spectroscopy reveal a highly
reversible lithium alloying/dealloying process, as well as promising compatibility between
the Ge and Si materials and the electrolyte components. Reversible capacities of 1400 and
2200 mA hg–1 are delivered by the Ge and Si anodes, respectively, matching the values …
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