%0 Journal Article
%A Paul, N.
%A Frielinghaus, H.
%A Busch, Sebastian
%A Pipich, V.
%A Gilles, R.
%T Combining SANS and VSANS to Extend Q-Range for Morphology Investigation of Silicon-Graphite Anodes
%J Surface investigation, x-ray, synchrotron and neutron techniques
%V 14
%N S1
%@ 0734-1520
%C New York, NY
%I Gordon and Breach
%M FZJ-2020-03937
%P S156 - S160
%D 2020
%X Silicon-based electrodes are attractive candidates as anodes for Li-ion batteries due to their high theoretical specific capacity. However, repeated lithiation/delithiation causes significant  morphological changes of the silicon particles which results in formation of highly porous silicon structures and severe side reactions at the silicon/electrolyte interface. To quantify such morphological changes in the micrometer as well as on the nanometer scale, we combine very small-angle neutron scattering (VSANS) and small-angle neutron scattering (SANS) techniques. While conventional and contrast-matched SANS data provide insights into the solid-electrolyte-interphase (SEI) coverage around the silicon particles and filling of the evolving porosity within the electrode, VSANS data provide information on the micrometer-sized graphite particles.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000578828100032
%R 10.1134/S1027451020070368
%U https://juser.fz-juelich.de/record/885573