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@ARTICLE{Tsai:861198,
author = {Tsai, Chih-Long and Ma, Qianli and Dellen, Christian and
Lobe, Sandra and Vondahlen, Frank and Windmüller, Anna and
Grüner, Daniel and Zheng, Hao and Uhlenbruck, Sven and
Finsterbusch, Martin and Tietz, Frank and
Fattakhova-Rohlfing, Dina and Buchkremer, Hans Peter and
Guillon, Olivier},
title = {{A} garnet structure-based all-solid-state {L}i battery
without interface modification: resolving incompatibility
issues on positive electrodes},
journal = {Sustainable energy $\&$ fuels},
volume = {3},
number = {1},
issn = {2398-4902},
address = {Cambridge},
publisher = {Royal Society of Chemistry},
reportid = {FZJ-2019-01730},
pages = {280 - 291},
year = {2019},
abstract = {The development of high-performance Li7La3Zr2O12
(LLZO)-based all-solid-state lithium batteries (SSLB)
isusually hampered by highly resistive interfaces due to the
need for sintering at elevated temperatures toform ionic
diffusion paths through the grains. Many strategies have
been proposed to solve the problembut the achievements have
been limited. Herein, a new design principle is introduced,
based on cosinteringcrystalline LCO and Ta-substituted LLZO
instead of using the more reactive Li–Co–Oprecursors and
Al-substituted LLZO, which allows the fabrication of high
specific areal density and lowcell area resistance without
the interface modification of LLZO-based SSLB. Detailed
studies usingmicro-Raman and EDS mapping revealed that the
well-sintered interfaces are free from detrimentalsecondary
phases. To demonstrate that a true bulk-type SSLB can be
constructed by this straightforwardstrategy, the material
loading for a composite positive electrode was increased to
about 10 times that inprevious reports, which resulted in a
high areal capacity of 1.63 mA h cm2 (i.e. 110 mA h g1)
whendischarged with a current density of 50 mA cm2. It also
allows one to discharge the fabricated SSLB ata very high
current density of 500 mA cm2 at 50 C due to the minimized
cell areal resistance. The newfabrication strategy for the
LLZO-based SSLB paves the way for achieving SSLB with high
safety andenergy density.},
cin = {IEK-1 / IEK-2},
ddc = {660},
cid = {I:(DE-Juel1)IEK-1-20101013 / I:(DE-Juel1)IEK-2-20101013},
pnm = {131 - Electrochemical Storage (POF3-131)},
pid = {G:(DE-HGF)POF3-131},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000453816900019},
doi = {10.1039/C8SE00436F},
url = {https://juser.fz-juelich.de/record/861198},
}