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@ARTICLE{Wu:1007795,
author = {Wu, Baolin and Chen, Chunguang and Danilov, Dmitri L. and
Chen, Zhiqiang and Jiang, Ming and Eichel, Rüdiger-A. and
Notten, Peter H. L.},
title = {{D}ual {A}dditives for {S}tabilizing {L}i {D}eposition and
{SEI} {F}ormation in {A}node‐{F}ree {L}i‐{M}etal
{B}atteries},
journal = {Energy $\&$ Environmental Materials},
volume = {7},
number = {3},
issn = {2575-0348},
address = {Hoboken},
publisher = {Wiley},
reportid = {FZJ-2023-02190},
pages = {e12642},
year = {2024},
abstract = {Anode-free Li-metal batteries are of significant interest
to energy storage industries due to their intrinsically high
energy. However, the accumulative Li dendrites and dead Li
continuously consume active Li during cycling. That results
in a short lifetime and low Coulombic efficiency of
anode-free Li-metal batteries. Introducing effective
electrolyte additives can improve the Li deposition
homogeneity and solid electrolyte interphase (SEI) stability
for anode-free Li-metal batteries. Herein, we reveal that
introducing dual additives, composed of LiAsF6 and
fluoroethylene carbonate, into a low-cost commercial
carbonate electrolyte will boost the cycle life and average
Coulombic efficiency of NMC||Cu anode-free Li-metal
batteries. The NMC||Cu anode-free Li-metal batteries with
the dual additives exhibit a capacity retention of about
$75\%$ after 50 cycles, much higher than those with bare
electrolytes $(35\%).$ The average Coulombic efficiency of
the NMC||Cu anode-free Li-metal batteries with additives can
maintain $98.3\%$ over 100 cycles. In contrast, the average
Coulombic efficiency without additives rapidly decline to
$97\%$ after only 50 cycles. In situ Raman measurements
reveal that the prepared dual additives facilitate denser
and smoother Li morphology during Li deposition. The dual
additives significantly suppress the Li dendrite growth,
enabling stable SEI formation on anode and cathode surfaces.
Our results provide a broad view of developing low-cost and
high-effective functional electrolytes for high-energy and
long-life anode-free Li-metal batteries.},
cin = {IEK-9},
ddc = {333.7},
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:001007634700001},
doi = {10.1002/eem2.12642},
url = {https://juser.fz-juelich.de/record/1007795},
}