Sylvio Indris1
Karlsruhe Institute of Technology–Institute for Applied Materials1
Sylvio Indris1
Karlsruhe Institute of Technology–Institute for Applied Materials1
The correlation between structure and dynamics in different Li and Na solid electrolyte materials was investigated by a combination of different nuclear magnetic resonance (NMR) techniques, including magic-angle spinning NMR, temperature-dependent NMR lineshape analysis, NMR relaxometry, and field-gradient NMR. We are thus able to investigate the dynamics of Li or Na ions on different time scales from some nanoseconds to a few seconds, and thus we can observe the local hopping of these charge carriers as well as the long-range transport over several micrometers.<br/>Some examples will be given for Li<sub>3</sub>PS<sub>4</sub>, Li<sub>6</sub>PS<sub>5</sub>Cl, Li<sub>0.29</sub>La<sub>0.57</sub>TiO<sub>3</sub>, and NASICON-type structures for Li and Na electrolytes [1-12]. In order to obtain insights into the diffusion pathways inside the crystal structures and the energy landscapes probed by the mobile ions, the NMR results are compared to those obtained by impedance spectroscopy and different diffraction techniques.<br/> <br/>[1] F. Strauss, J. Lin, M. Duffiet, K. Wang, T. Zinkevich, A.-L. Hansen, S. Indris, T. Brezesinski, <i>ACS Mater. Lett.</i> <b>4</b>, 418-423 (2022).<br/>[2] R. Schlenker, A.-L. Hansen, A. Senyshyn, T. Zinkevich, M. Knapp, T. Hupfer, H. Ehrenberg, S. Indris, <i>Chem. Mater.</i> <b>32</b>, 8420-8430 (2020).<br/>[3] F. Strauss, T. Zinkevich, S. Indris, T. Brezesinski, <i>Inorg. Chem.</i> <b>59</b>, 12954-12959 (2020).<br/>[4] R. Schlenker, D. Stepien, P. Koch, T. Hupfer, S. Indris, B. Roling, V. Miß, A. Fuchs, M. Wilhelmi, H. Ehrenberg, <i>ACS Appl. Mater. Interfaces</i> <b>12</b>, 20012-20025 (2020).<br/>[5] T. Zinkevich, B. Schwarz, P. Braun, A. Weber, H. Ehrenberg, S. Indris, <i>Solid State Ionics</i> <b>357</b>, 115486 (2020).<br/>[6] Z. Liu, T. Zinkevich, S. Indris, X. He, J. Liu, W. Xu, J. Bai, S. Xiong, Y. Mo, H. Chen, <i>Inorg. </i><i>Chem.</i> <b>59</b>, 226-234 (2020).<br/>[7] H. Stöffler, T. Zinkevich, M. Yavuz, A.-L. Hansen, M. Knapp, J. Bednarčík, S. Randau, F. H. Richter, J. Janek, H. Ehrenberg, S. Indris, <i>J. Phys. Chem. C</i> <b>123</b>, 10280-10290 (2019).<br/>[8] H. Stöffler, T. Zinkevich, M. Yavuz, A. Senyshyn, J. Kulisch, P. Hartmann, T. Adermann, S. Randau, F. Richter, J. Janek, S. Indris, H. Ehrenberg, <i>J. Phys. Chem. C</i> <b>122</b>, 15954-15965 (2018).<br/>[9] C. Dietrich, D. A. Weber, S. J. Sedlmaier, S. Indris, S. Culver, D. Walter, J. Janek, W. G. Zeier, <i>J. Mater. Chem. A</i> <b>5</b>, 18111-18119 (2017).<br/>[10] T. Zinkevich, A. Fiedler, M. Guin, F. Tietz, O. Guillon, H. Ehrenberg, S. Indris, <i>Solid State Ionics</i> <b>348</b>, 115277 (2020).<br/>[11] M. Kaus, M. Guin, M. Yavuz, M. Knapp, F. Tietz, O. Guillon, H. Ehrenberg, S. Indris, <i>J. Phys. Chem. C</i> <b>121</b>, 1449-1454 (2017).<br/>[12] M. Guin, S. Indris, M. Kaus, H. Ehrenberg, F. Tietz, O. Guillon, <i>Solid State Ionics</i> <b>302</b>, 102-106 (2017).