Abstract
After several decades of R&D, the thin film batteries using ORNL’s Lipon glassy electrolyte is still a promising technology for consumer electronics. These batteries also serve as model systems for other solid-state battery efforts, as the thin film batteries demonstrate exceptional stability with extended cycling and wide ranges of voltage and temperature. In light of recent thermodynamic analysis [1], we need to ask - Are we cheating thermodynamics? This presentation will briefly review the early work on Lipon-based batteries leading into recent efforts to advance the understanding of Lipon properties. Results for stability of Lipon with high voltage cathodes and Li metal will be highlighted. [1] William D. Richards, Lincoln J. Miara, Yan Wang, Jae Chul Kim, and Gerbrand Ceder, DOI: 10.1021/acs.chemmater.5b04082 Acknowledgement: This work is based on support from the US Department of Energy, Advanced Research Projects Agency for Energy (ARPA-E) IONICS program; and on earlier support from U. S. Department of Energy, Office of Science, Basic Energy Sciences, Materials Science and Engineering Division.
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