Regensburg 2019 – wissenschaftliches Programm
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KFM: Fachverband Kristalline Festkörper und deren Mikrostruktur
KFM 9: Focus: Materials for Energy Storage
KFM 9.6: Vortrag
Dienstag, 2. April 2019, 11:50–12:10, PHY 5.0.21
Properties of composite films for Li-ion batteries — •Lena Kuske1, Frank Apsel2, Robert Schlegel2, Till Mälzer1,2, Richard Schalinski3, Stefan Ebbinghaus4, Ralf Wehrspohn3, and Hartmut Leipner1 — 1Center of Materials Science, Martin-Luther-University Halle-Wittenberg (MLU), 06120 Halle (Saale) — 2enspring GmbH, 06120 Halle (Saale) — 3Department of Physics, MLU — 4Department of Chemistry, MLU
The development of new, safer and good performing materials for long life batteries to provide storage possibilities that fulfil the distinct requests of different portable devices is highly demanded.
A promising material class for lithium ion batteries are polymer composite materials. We combine the distinct properties of P(VdF-HFP) as a flexible and mechanical stable polymer matrix with the electric properties of nanosized ceramic Li7La3Zr2O12 as a highly Li-ion conducting material and different Lithium salts to develop electrolyte materials with the desired properties of high ionic and low electron conductivity, good mechanical stability and homogeneity.
Thin layers of the composite materials were fabricated via a solution cast doctor blade process. Their ion and electron conductivity was analysed in view of their use as electrolyte material in lithium ion batteries. Besides electrochemical investigations, the morphology of the composite layers were studied with X-ray diffraction and electron microscopy.