2007

ElectrodesF 3000 Synthesis and Electrochemistry Properties of Sn—Sb Ultrafine Particles as Anode

of Lithium-Ion Batteries. — The title particles are prepared by arc melting an ingot of the Sn—Sb alloy in a mixture of 80% Ar + 20% H2 of 0.1 MPa (hydrogen plasma--metal reaction). The samples are characterized by XRD, TEM, constant current cy-cling, and cyclic voltammetry. The Sn—46.5 at.% Sb alloy has the best reversible ca-pacity and capacity retention. It exhibits a high reversible lithium-ion storage capacity of 701 mAh/g in the initial cycle, which remains at 81% of its original capacity after 20 cycles. The Sn—Sb ultrafine particles are promising candidates as anode materials for lithium ion batteries. — (WANG, Z.; TIAN, W.; LI*, X.; J. Alloys Compd. 439 (2007) 1-2, 350-354; State Key Lab. Rare Earth Mater. Chem. Appl., Peking Univ., Beijing 100871, Peop. Rep. China; Eng.) — W. Pewestorf

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