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@ARTICLE{Wu:909247,
author = {Wu, Baolin and Chen, Chunguang and Danilov, Dmitri L. and
Jiang, Ming and Raijmakers, Luc H. J. and Eichel,
Rüdiger-A. and Notten, Peter H. L.},
title = {{I}nfluence of the {SEI} formation on the stability and
lithium diffusion in {S}i electrodes},
journal = {ACS omega},
volume = {7},
number = {36},
issn = {2470-1343},
address = {Washington, DC},
publisher = {ACS Publications},
reportid = {FZJ-2022-03083},
pages = {32740 - 32748},
year = {2022},
abstract = {Silicon (Si) is an attractive anode material for Li-ion
batteries (LIBs) due to its high theoretical specific
capacity. However, the solid–electrolyte interphase (SEI)
formation, caused by liquid electrolyte decomposition, often
befalls Si electrodes. The SEI layer is less Li-ion
conductive, which would significantly inhibit Li-ion
transport and delay the reaction kinetics. Understanding the
interaction between the SEI components and Li-ion diffusion
is crucial for further improving the cycling performance of
Si. Herein, different liquid electrolytes are applied to
investigate the induced SEI components, structures, and
their role in Li-ion transport. It is found that Si
electrodes exhibit higher discharge capacities in
LiClO4-based electrolytes than in LiPF6-based electrolytes.
This behavior suggests that a denser and more conductive SEI
layer is formed in LiClO4-based electrolytes. In addition, a
coating of a Li3PO4 artificial SEI layer on Si suppresses
the formation of natural SEI formation, leading to higher
capacity retentions. Furthermore, galvanostatic intermittent
titration technique (GITT) measurements are applied to
calculate Li-ion diffusion coefficients, which are found in
the range of 10–23–10–19 m2/s.},
cin = {IEK-9},
ddc = {660},
cid = {I:(DE-Juel1)IEK-9-20110218},
pnm = {1223 - Batteries in Application (POF4-122)},
pid = {G:(DE-HGF)POF4-1223},
typ = {PUB:(DE-HGF)16},
pubmed = {36120060},
UT = {WOS:000855059100001},
doi = {10.1021/acsomega.2c04415},
url = {https://juser.fz-juelich.de/record/909247},
}