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dc.contributor.authorHu, Qichao
dc.contributor.authorOsswald, Sebastian
dc.contributor.authorDaniel, Reece
dc.contributor.authorZhu, Yan
dc.contributor.authorWesel, Steven
dc.contributor.authorOrtiz, Luis
dc.contributor.authorSadoway, Donald R.
dc.date.accessioned2015-09-24T22:29:32Z
dc.date.available2015-09-24T22:29:32Z
dc.date.issued2011
dc.identifier.citationJournal of Power Sources, Vol. 196, (2011), pp. 5604–5610en_US
dc.identifier.urihttp://hdl.handle.net/10945/46662
dc.descriptionThe article of record as published may be located at http://dx.doi.org/10.1016/j.jpowsour.2011.03.001en_US
dc.description.abstractThe use of conventional lithium-ion batteries in high temperature applications (>50 ◦C) is currently inhibited by the high reactivity and volatility of liquid electrolytes. Solvent-free, solid-state polymer electrolytes allow for safe and stable operation of lithium-ion batteries, even at elevated temperatures. Recent advances in polymer synthesis have led to the development of novel materials that exhibit solidlike mechanical behavior while providing the ionic conductivities approaching that of liquid electrolytes. Here we report the successful charge and discharge cycling of a graft copolymer electrolyte (GCE)-based lithium-ion battery at temperatures up to 120 ◦C. The GCE consists of poly(oxyethylene) methacrylate-gpoly( dimethyl siloxane) (POEM-g-PDMS) doped with lithium triflate. Using electrochemical impedance spectroscopy (EIS), we analyze the temperature stability and cycling behavior of GCE-based lithium-ion batteries comprised of a LiFePO4 cathode, a metallic lithium anode, and an electrolyte consisting of a 20- m-thick layer of lithium triflate-doped POEM-g-PDMS. Our results demonstrate the great potential of GCE-based Li-ion batteries for high-temperature applications.en_US
dc.rightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.en_US
dc.titleGraft copolymer-based lithium-ion battery for high-temperature operationen_US
dc.typeArticleen_US
dc.contributor.departmentPhysicsen_US
dc.subject.authorGraft copolymeren_US
dc.subject.authorPolymer electrolyteen_US
dc.subject.authorPEOen_US
dc.subject.authorLithium-ion batteryen_US
dc.subject.authorLiFePO4en_US
dc.subject.authorHigh temperatureen_US


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