Dresden 2020 – scientific programme
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O: Fachverband Oberflächenphysik
O 38: Interfaces and Thin Films II (joint session CPP/DY/O)
O 38.6: Talk
Tuesday, March 17, 2020, 11:00–11:15, ZEU 260
Revealing the formation of sputter deposited copper nanolayers on functional polymer thin films for lithium-ion batteries — •Simon J. Schaper1, Franziska C. Löhrer1, Senlin Xia1, Matthias Schwartzkopf2, Pallavi Pandit2, Alexander Hinz3, Oleksandr Polonskyi3, Thomas Strunskus3, Franz Faupel3, Stephan V. Roth2,4, and Peter Müller-Buschbaum1 — 1TU München, Physik-Department, LS Funktionelle Materialien, 85748 Garching — 2DESY, Photon Science, 22607 Hamburg — 3CAU zu Kiel, Institut für Materialwissenschaft, LS Materialverbunde, 24143 Kiel — 4KTH, Department of Fibre and Polymer Technology, 100 44 Stockholm, Sweden
Understanding the interface between metals, commonly used as current collectors, and ion-conducting polymers used in polymer lithium-ion batteries (LIBs) is crucial to develop highly reproducible, low-cost and reliable devices. To address these issues, sputter deposition is the technique of choice to fabricate scalable, reproducible and controllable nanometer and sub-nanometer metal layers on polymer thin films. The sputter deposition process, being well understood and controlled, offers advantages over chemical methods to tailor metal thin-film morphologies on the nanoscale and offers a superior adhesion of the deposited material. We use in-situ grazing incidence small angle X-ray scattering (GISAXS) to investigate the formation, growth and, self-assembled structuring of copper on polymer thin films and composites used in LIBs. The growth of copper on polymer thin films is described based on a model approach.