Intensively growing Li-ion battery research area place high demands in the establishing of the long- and short-range structure of the electrodes after or during Li intercalation. Low crystallinity of the electrode materials and weak scattering of the X-rays by Li atoms make these systems crystallographically challenging. To understand the processes occurring in pnictides-containing electrodes we have synthesized ternary Li-E-Pn (E = Si, Ge, Sn; Pn = P, As) compounds. Long- and short-range ordering in these compounds were extensively characterized by a combination of different methods including powder and single crystal X-ray diffraction, neutron and synchrotron X-ray PDF analysis, <sup>7</sup>Li solid state NMR and <sup>119</sup>Sn Mössbauer spectroscopies, as well as high resolution TEM. The correlations between crystal structure, thermal and electron transport properties will be discussed.

Crystal chemistry and transport properties of novel layered Li pnictides

251st National Meeting (2016)

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