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@ARTICLE{Jovanovic:903683,
author = {Jovanovic, Sven and Jakes, Peter and Merz, Steffen and
Eichel, Rüdiger-A. and Granwehr, Josef},
title = {{L}ithium intercalation into graphite: {I}n operando
analysis of {R}aman signal widths},
journal = {Electrochemical science advances},
volume = {2},
number = {4},
issn = {2698-5977},
address = {Weinheim},
publisher = {Wiley-VCH Verlag GmbH $\&$ Co KGaA},
reportid = {FZJ-2021-05332},
pages = {e2100068},
year = {2022},
abstract = {The mechanism of reversible lithium intercalation in
graphite anodes is still not fully understood. In operando
Raman spectroscopy provides a sensitive means to monitor
structural changes during the intercalation process.
Analysis of the D-band to G-band intensity ratio (D/G ratio)
is a common method to study the structure of carbon
materials. However, this approach is complicated for the
investigation of graphite anodes during battery cycling, as
the D-band disappears with the onset of lithium
intercalation. To circumvent this issue, the D/G ratio can
be replaced by using the G-band full-width-at-half-maximum
(FWHM). In this study, an investigation of the G-band FWHM
during battery cell cycling is demonstrated as an
alternative to monitor the intercalation of lithium into a
graphite electrode. It was observed that lithium
intercalation already occurs to a small extent during
solid–electrolyte interphase (SEI) formation and that the
formation of staged intercalation compounds leads to a
continuous deformation of the boundary graphene layer.},
cin = {IEK-9},
ddc = {540},
cid = {I:(DE-Juel1)IEK-9-20110218},
pnm = {1223 - Batteries in Application (POF4-122) / HITEC -
Helmholtz Interdisciplinary Doctoral Training in Energy and
Climate Research (HITEC) (HITEC-20170406)},
pid = {G:(DE-HGF)POF4-1223 / G:(DE-Juel1)HITEC-20170406},
typ = {PUB:(DE-HGF)16},
UT = {WOS:001136690800017},
doi = {10.1002/elsa.202100068},
url = {https://juser.fz-juelich.de/record/903683},
}