Aging induced morphology changes in silicon-based anodes

15 May 2019, 19:00
Institute of Advanced Study (TUM Campus Garching)

Institute of Advanced Study

TUM Campus Garching

Lichtenbergstraße 2a, 85748 Garching


Dr Neelima Paul (TUM, MLZ)


Although a silicon-based electrode is a promising candidate as anode in Li-ion batteries, repeated cycling results in significant morphological changes of the silicon particles leading to formation of highly porous silicon structures. We applied small-angle neutron scattering (SANS) with selective contrast matching to provide quantitative insights into the solid-electrolyte-interphase (SEI) coverage around the silicon particles and filling of the evolving porosity within the electrode.

Primary authors

Dr Neelima Paul (TUM, MLZ) Mr Morten Wetjen (TUM, Chair of Technical Electrochemistry) Dr Sebastian Busch (GEMS at MLZ, HZG) Prof. Hubert Gasteiger (TUM, Chair of Technical Electrochemistry) Ralph Gilles

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