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@ARTICLE{Adhitama:906958,
author = {Adhitama, Egy and Dias Brandao, Frederico and Dienwiebel,
Iris and Bela, Marlena M. and Javed, Atif and Haneke, Lukas
and Stan, Marian C. and Winter, Martin and Gomez-Martin,
Aurora and Placke, Tobias},
title = {{P}re‐{L}ithiation of {S}ilicon {A}nodes by {T}hermal
{E}vaporation of {L}ithium for {B}oosting the {E}nergy
{D}ensity of {L}ithium {I}on {C}ells},
journal = {Advanced functional materials},
volume = {32},
number = {22},
issn = {1057-9257},
address = {Weinheim},
publisher = {Wiley-VCH},
reportid = {FZJ-2022-01776},
pages = {2201455 -},
year = {2022},
abstract = {Silicon (Si) is one of the most promising anode candidates
to further push the energy density of lithium ion batteries.
However, its practical usage is still hindered by parasitic
side reactions including electrolyte decomposition and
continuous breakage and (re-)formation of the solid
electrolyte interphase (SEI), leading to consumption of
active lithium. Pre-lithiation is considered a highly
appealing technique to compensate for active lithium losses.
A critical parameter for a successful pre-lithiation
strategy by means of Li metal is to achieve lithiation of
the active material/composite anode at the most uniform
lateral and in-depth distribution possible. Despite
extensive exploration of various pre-lithiation techniques,
controlling the lithium amount precisely while keeping a
homogeneous lithium distribution remains challenging. Here,
the thermal evaporation of Li metal as a novel
pre-lithiation technique for pure Si anodes that allows
both, that is, precise control of the degree of
pre-lithiation and a homogeneous Li deposition at the
surface is reported. Li nucleation, mechanical cracking, and
the ongoing phase changes are thoroughly evaluated. The
terms dry-state and wet-state pre-lithiation (without/with
electrolyte) are revisited. Finally, a series of
electrochemical methods are performed to allow a direct
correlation of pre-SEI formation with the electrochemical
performance of pre-lithiated Si.},
cin = {IEK-12},
ddc = {530},
cid = {I:(DE-Juel1)IEK-12-20141217},
pnm = {1221 - Fundamentals and Materials (POF4-122)},
pid = {G:(DE-HGF)POF4-1221},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000771566700001},
doi = {10.1002/adfm.202201455},
url = {https://juser.fz-juelich.de/record/906958},
}