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DTSTAMP:20240329T134742Z
UID:https://www.mpie.de/events/29407/2768772
DTSTART:20211111T090000Z
DTEND:20211111T103000Z
CLASS:PUBLIC
CREATED:20211013T062613Z
DESCRIPTION: The advent of solid-state batteries has spawned a recen
t increase in interest in lithium conducting solid electrolytes. However\,
many open questions remain when trying to optimize electrolytes and under
stand solid state battery chemistries. In this presentation\, we will show
how an understanding of the structure-transport properties can help tailo
r the ionic conductivity. In an exemplary study on superionic lithium meta
l halides\, we show that a cation site-disorder and the local structure of
materials is important to study\, especially as synthetic influences cont
rol materials properties. In a second part of this presentation\, we will
show the tremendous influence of lattice dynamics on ionic conductors. By
introducing a different approach to understanding ionic motion using phono
n occupations\, we try to explain so far unexplained behaviors of physical
ionic transport. Finally\, we will show that it is not only important to
find fast ionic conductors\, but that fast ionic conduction is paramount w
ithin solid state battery composites. Measuring the effective ionic transp
ort in cathode composites provides an avenue to explore transport and stab
ility limitations that in turn provide better criteria for solid state bat
tery performance Bio: Wolfgang Zeier received his doctorate in Inorganic C
hemistry in 2013 from the University of Mainz. After postdoctoral stays at
the University of Southern California\, the California Institute of Techn
ology\, and Northwestern University\, he was appointed group leader at the
University of Giessen\, within the framework of an Emmy-Noether research
group. Since 2020 he holds a professorship for Inorganic Chemistry at the
University of Münster. In addition\, he heads a department at the Helmho
ltz-Institute Münster\, Ionics in Energy Storage. His research interests
encompass the fundamental structure-to-property relationships in solids\,
with a focus on thermoelectric and ion-conducting materials\, as well as s
olid-solid interfacial chemistry for all-solid-state batteries.\nSpeaker:
Professor Wolfgang Zeier
LAST-MODIFIED:20211013T062659Z
LOCATION:Online\, Room: Virtual Lecture
ORGANIZER:on invitation of Prof. Dierk Raabe
SUMMARY:Understanding (effective) ionic transport in solids and solid-st
ate batteries
URL:https://www.mpie.de/events/29407/2768772
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