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@ARTICLE{Wang:1024677,
author = {Wang, Chih-Chieh and Hsu, Wei-Chun and Chang, Chia-Yu and
Ihrig, Martin and Thuy Tran, Ngoc Thanh and Lin, Shih-kang
and Windmüller, Anna and Tsai, Chih-Long and Eichel,
Rüdiger-A. and Chiu, Kuo-Feng},
title = {{G}rain boundary complexion modification for interface
stability in garnet based solid-state {L}i batteries},
journal = {Journal of power sources},
volume = {602},
issn = {0378-7753},
address = {New York, NY [u.a.]},
publisher = {Elsevier},
reportid = {FZJ-2024-02350},
pages = {234394 -},
year = {2024},
abstract = {The garnet type solid-state electrolyte (SSE) encounters
challenges related to poor interfacial contact with Li metal
and dendrite penetration problem. This study addresses these
issues by manipulating the surface property of garnet-based
LLZTO (Li6.5La3Zr1.6Ta0.4O12) SSE. The manipulation is
achieved by varying thickness of Al2O3 atomic layer
deposition (ALD), followed by sintering. Research results
show that the relative density, ionic conductivity, and
hardness of LLZTO are improved while electronic conductivity
is reduced due to the formation of multiple complexions at
grain boundary (GB). The SSE pellets also demonstrate
improved wettability with Li metal, leading to stable
galvanostatic Li plating/stripping cycling with low
polarization, which allows for batter battery performance
than pristine one. The concept of modifying SSE through the
grain boundary complexion modification by thin ALD coating
for enhancing the dendrite tolerance with better
electrochemical properties of SSE may open a new direction
for solid state battery research.},
cin = {IEK-9},
ddc = {620},
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},
UT = {WOS:001218339700001},
doi = {10.1016/j.jpowsour.2024.234394},
url = {https://juser.fz-juelich.de/record/1024677},
}