Cu5(VO4)2(OH)4·H2O nanobelts as anode materials for lithium-ion batteries

Abstract

The Cu5(VO4)2(OH)4·H2O nanobelts with widths of 100nm, thicknesses of 50nm, and lengths up to about 500nm have been successfully prepared on a large scale via a hydrothermal technique. Electrochemical measurements revealed that the as-prepared Cu5(VO4)2(OH)4·H2O nanobelts exhibited higher specific capacity (534.8mAhg−1 at 50mAg−1), high Coulombic efficiency, and good cycle stability, indicating a promising anode candidate for the application in lithium-ion batteries. Significantly, this is the first report on the Cu5(VO4)2(OH)4·H2O as anode materials in lithium-ion batteries, and the present work will greatly expand the range of anode choices in lithium-ion batteries.