% IMPORTANT: The following is UTF-8 encoded. This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.
@INPROCEEDINGS{Lobe:860161,
author = {Lobe, Sandra and Dellen, Christian and Tsai, Chih-Long and
Uhlenbruck, Sven and Guillon, Olivier},
title = {{T}hin film deposition of garnet electrolytes for batteries
with high energy density},
reportid = {FZJ-2019-00947},
year = {2018},
abstract = {Nowadays, important research topics in the field of
batteries are high energy densities as well as high inherent
safety of the battery cells. Ceramic solid electrolytes are
one possibility to reach both goals in one cell. Safety is
given by the chemical and thermal stability of the ceramics.
High energy density can be obtained by cells with higher
voltages and/ or higher capacities, for example by using
lithium metal as anode material and cathode active materials
with potentials higher than 4.5 V vs. lithium metal. Garnet
electrolytes based on the composition Li7-xLa3Zr2-xTaxO12
show an excellent stability in contact with lithium metal
and resist voltages of more than 5 V. Applied as a thin
film, high gravimetric and volumetric energy densities can
be achieved. In recent years different techniques were used
for garnet thin film deposition, like sputtering, pulsed
laser deposition, chemical vapor deposition and wet-chemical
methods. However, a full cell with a garnet-structured thin
film electrolyte was not shown yet. In this presentation we
will discuss the challenges which are linked to garnet thin
film deposition. The discussion will be based on our
experiences from experimental work with sputter deposition
supplemented by results from other methods. We will show
characteristic examples of different deposition parameters;
especially the substrate material and the deposition
temperature will be addressed. Furthermore, the influence of
post-annealing on the thin films will be discussed. The thin
films are analyzed regarding their chemical and
electrochemical properties, e.g. by X-ray diffraction,
µ-Raman spectroscopy, scanning electron microscopy and
electrochemical impedance spectroscopy.},
month = {Nov},
date = {2018-11-14},
organization = {3rd Bunsen Kolloquium on Solid State
Batteries, Frankfurt/Main (Germany), 14
Nov 2018 - 16 Nov 2018},
subtyp = {After Call},
cin = {IEK-1},
cid = {I:(DE-Juel1)IEK-1-20101013},
pnm = {131 - Electrochemical Storage (POF3-131)},
pid = {G:(DE-HGF)POF3-131},
typ = {PUB:(DE-HGF)24},
url = {https://juser.fz-juelich.de/record/860161},
}