Probing the Reversibility Limit of Lithium Ion Transport in Solid Film Batteries

ORAL

Abstract

Time-resolved neutron depth profiling (TR-NDP) has been used to measure the lithium distribution in electrode layers of thin film batteries during charge/discharge cycles. TR-NDP data demonstrate quantitatively that ionic transport in electrodes follows the electric current in the external circuits under normal charge/discharge conditions whereas deviates upon sudden structural changes. The reversibility limit of ionic transport has been quantified to indicate the onset of battery failure.

*The NIST/ARRA funding through GM is greatly appreciated

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Authors

  • Howard Wang

    • Institute for Material Research and Department of Mechanical Engineering, State University of New York, Binghamton, NY 13902

  • Liwei Huang

    • Institute for Material Research and Department of Mechanical Engineering, State University of New York, Binghamton, NY 13902

  • Kaikun Yang

    • Institute for Material Research and Department of Mechanical Engineering, State University of New York, Binghamton, NY 13902

  • Gregory Downing

    • Material Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, MD 20899

  • Alec Talin

    • Center for Nanoscale Science and Technology, National Institute of Standards and Technology, Gaithersburg, MD 20899

  • Paul Naney

    • Center for Nanoscale Science and Technology, National Institute of Standards and Technology, Gaithersburg, MD 20899

  • Jason Zhang

    • Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA 99352

  • Jon Owejan

    • Electrochemical Energy Research Laboratory, General Motors Company, Honeoye Falls, NY 14472

  • Jeffrey Gagliardo

    • Electrochemical Energy Research Laboratory, General Motors Company, Honeoye Falls, NY 14472

  • Jeanette Owejan

    • Electrochemical Energy Research Laboratory, General Motors Company, Honeoye Falls, NY 14472