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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 37: Interfaces and Thin Films II (joint session CPP/DY/O)

CPP 37.6: Vortrag

Dienstag, 17. März 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. Roth^2,4, 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.