Journal
JOURNAL OF PHYSICAL CHEMISTRY B
Volume 110, Issue 9, Pages 4301-4306Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp0565554
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Lithium nickel vanadate thin films were prepared by radio frequency magnetron sputtering at various substrate temperatures (T-s). These thin films have been investigated as anode electrode material in the use of microbatteries. Films were characterized by Rutherford backscattering spectroscopy, nuclear reaction analysis, Auger electron spectroscopy, glancing-incidence X-ray diffraction analysis, Raman spectroscopy, scanning electron microscopy, atomic force microscopy, and high-resolution transmission electron microscopy techniques. The anodic electrochemical performances of the films have been evaluated by cyclic voltammetry at a scan rate of 1 mV/s and by galvanostatic cycling, with lithium metal as the counter and the reference electrode, and cycled in the range of 0.02-3.0 V at a current density of 75 mu A/cm(2). Thin films prepared at a T-s of 650 degrees C show a discharge capacity at the 20th cycle of 1100 (+/- 10) mAh/g, which exhibited excellent capacity retention with a small capacity fade.
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