期刊
JOURNAL OF POWER SOURCES
卷 122, 期 2, 页码 169-173出版社
ELSEVIER
DOI: 10.1016/S0378-7753(03)00401-4
关键词
lithium and lithium-ion thin-film batteries; MOS2 thin-film cathode; electrochemical cathode deposition
Thin-film molybdenum oxysulfide films were deposited electrochemically on both nickel foils and nickel-coated silicon substrates, and used as cathodes in lithium battery cells that included a lithium anode and a hybride gel electrolyte (HPE) or solid polymer electrolyte (SPE). X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) characterizations indicated that the sub-micron thick MoOySz. films were amorphous, with the stoichiometry of the films varying with depth. A Li/HPE/MoOySz on nickel and nickel-coated silicon ran at i(d) = i(ch) = 100 muA/cm(2) and room temperature for 1000 charge/discharge cycles with 0.05% per cycle capacity loss and 100% Faradaic efficiency. Cells with SPE cycled at 125degreesC showed a higher per cycle capacity loss of 0.5%. (C) 2003 Elsevier Science B.V. All rights reserved.
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