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@INPROCEEDINGS{Basak:912057,
author = {Basak, Shibabrata and Tavabi, Amir Hossein and Tempel,
Hermann and Kungl, Hans and george, chandramohan and
Dunin-Borkowski, Rafal and Mayer, Joachim and Eichel,
Rüdiger-A.},
title = {{I}n situ {TEM} studies for making ideal batteries},
reportid = {FZJ-2022-05284},
year = {2022},
abstract = {Safety features of Li-ion batteries are a high priority
requirement as their adoption in electric vehicles and
day-to-day electronic devices is continuously increasing.
The liquid electrolytes that are typically used in
traditional Li-ion batteries are flammable, especially at
higher operating voltages and temperatures. By contrast, an
all-solid-state battery (ASSB) makes use of solid
electrolyte instead of liquid electrolyte, which reduces the
risk of flammability. However, the solid-solid
electrolyte-electrode interface in ASSBs introduces
different sets of challenges from the traditional
liquid-solid electrode-electrolyte interface. First, in
batteries containing liquid electrolytes entire surface of
electrode particles are wetted by electrolytes, whereas the
electrode and solid electrolyte particles in ASSBs are
connected primarily at point contacts, which are limited in
terms of their numbers (as not all electrode particles are
in direct contact with electrolyte particles), therefore
ionic transport is basically restricted, diminishing the
specific capacity of these batteries. Decomposition
reactions at the electrode-electrolyte interfaces during
battery cycling cause the formation of passivating layers
and as well as electrode volume changes during battery
cycling result in loss of contacts between electrode and
electrolyte particles, further decreasing direct ion
exchange pathways. Second, inhomogeneous (de)lithiation
through point contacts can induce strain, which affects
electrode mechanical integrity leading to capacity fade.
Operando transmission electron microscopy (TEM) allows for
the visualization of (de)lithiation processes in electrode
materials at a single particle level in real-time. In our
recent research, we have utilized the volume change property
of Si nanoparticles during (de)lithiation to understand the
interface kinetics of an ASSB during cycling. Following the
safty aspect, aquous based Zn-batteris are also gathering
attention. In this resepect, recent works on Zn-ion
batteries using liquid phase TEM will also be discussed.},
month = {Mar},
date = {2022-03-04},
organization = {The 9th Advanced Functional Materials
$\&$ Devices and The 4th Symposium for
Collaborative Research on Energy
Science and Technology, online (Japan),
4 Mar 2022 - 5 Mar 2022},
subtyp = {Invited},
cin = {IEK-9 / ER-C-1 / ER-C-2},
cid = {I:(DE-Juel1)IEK-9-20110218 / I:(DE-Juel1)ER-C-1-20170209 /
I:(DE-Juel1)ER-C-2-20170209},
pnm = {1223 - Batteries in Application (POF4-122) / 5351 -
Platform for Correlative, In Situ and Operando
Characterization (POF4-535) / 5353 - Understanding the
Structural and Functional Behavior of Solid State Systems
(POF4-535) / Electroscopy - Electrochemistry of
All-solid-state-battery Processes using Operando Electron
Microscopy (892916)},
pid = {G:(DE-HGF)POF4-1223 / G:(DE-HGF)POF4-5351 /
G:(DE-HGF)POF4-5353 / G:(EU-Grant)892916},
typ = {PUB:(DE-HGF)6},
url = {https://juser.fz-juelich.de/record/912057},
}