Berlin 2015 – wissenschaftliches Programm

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MM: Fachverband Metall- und Materialphysik

MM 10: Functional materials II: Battery Materials

MM 10.1: Vortrag

Montag, 16. März 2015, 11:45–12:00, TC 010

Towards an All-Solid-State Thin-Film Li-Ion Battery by Novel CO2-Laser Assisted Chemical Vapor Deposition — •Christoph Loho¹, Azad Darbandi^1,2, Ruzica Djenadic^1,3, Oliver Clemens^1,2, and Horst Hahn^1,2,3 — ¹Joint Research Laboratory Nanomaterials, Technical University of Darmstadt and Karlsruhe Institute of Technology, Germany — ²Institute of Nanotechnology, Karlsruhe Institute of Technology, Germany — ³Helmholtz Institute Ulm, Germany

Over the last decades a progressive miniaturization of electronic components took place. As a result there is an increasing demand for micro-sized power sources, which drives the current research on thin-film batteries. Among the applications are RFID tags, pacemakers, energy harvesting and lab-on-a-chip devices. In this respect an all-solid-state thin-film battery is desirable, since its excellent safety properties and easy integration in microelectronics are outstanding advantages. Regarding fabrication, chemical vapor deposition (CVD) is a suitable method to grow functional thin-films for Li-ion batteries, since it allows for a homogeneous growth over large areas with high deposition rates and a very high purity. Unique is also the capability of conformal, directional deposition in order to realize three-dimensional architectures. In this contribution we report on our latest progress towards an all-solid-state thin-film Li-ion battery deposited by novel CO2-laser assisted chemical vapor deposition (LA-CVD). The detailed characterization of (i) LiCoO2 and (ii) Li7La3Zr2O12 thin-films includes results on microstructure, phase composition and electrochemical performance.