Thin-film lithium and lithium-ion batteries with electrochemically deposited molybdenum oxysulfide cathodes

V. Yufit, M. Nathan*, D. Golodnitsky, E. Peled

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

33 Scopus citations

Abstract

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 id=ich=100μA/cm2 and room temperature for 1000 charge/discharge cycles with 0.05% per cycle capacity loss and 100% Faradaic efficiency. Cells with SPE cycled at 125 °C showed a higher per cycle capacity loss of 0.5%.

Original languageEnglish
Pages (from-to)169-173
Number of pages5
JournalJournal of Power Sources
Volume122
Issue number2
DOIs
StatePublished - 23 Jul 2003

Keywords

  • Electrochemical cathode deposition
  • Lithium and lithium-ion thin-film batteries
  • MoS thin-film cathode

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