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Electrochemical performance of ∼20 nm Ga NPs and of bulk Ga as anode materials for Li-ion batteries. Two-electrode half-cells with metallic Li as counter electrode were assembled. (A) Galvanostatice charge/discharge curves; (B) cycling stability tests; (C) rate-capability tests (0.5–20C rates, where 1C is a current density of 769 mA g–1 based on the theoretical capacity of pure Ga). All batteries were cycled in the voltage window of 0.02–1.5 V.
