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SUMMARY:THEOS-MARVEL seminar: “Lithionics” to Store Energy and Compute
  Data Neuromorphically
DTSTART:20190718T110000
DTEND:20190718T120000
DTSTAMP:20260928T220554Z
UID:71a36a3a29ee2ec9c0fdc34063737055c0a5e6f9b61eb8d9810b3d30
CATEGORIES:Conferences - Seminars
DESCRIPTION:Jennifer L. M. Rupp\, Massachusetts Institute of Technology MI
 T\, USA\n“Lithionics” to Store Energy and Compute Data Neuromorphicall
 y\n\nJennifer L. M. Rupp\, Massachusetts Institute of Technology MIT\, USA
 \n\nNext generation of energy storage and sensors may largely benefit from
  fast Li+ ceramic electrolyte conductors to allow for safe and efficient b
 atteries. Recently\, Li-solid state conductors based on Li-garnet structur
 es received attention due to their fast transfer properties and safe opera
 tion over a wide temperature range. Through this presentation basic theory
  and history of Li-garnets will first be introduced and critically reflect
 ed towards new device opportunities demonstrating that these electrolytes 
 may be the start of an era to not only store energy or sense the environme
 nt but also to emulate environmental data and information based on simple 
 electrochemistry device architecture twists.\nIn the first part we focus o
 n the fundamental investigation of the electro-chemo-mechanic characterist
 ics and design of disordered to crystallizing Li-garnet structure types an
 d their description. Understanding the fundamental transport in solid stat
 e and asking the provokative question: how do Li-amorphous to crystalline 
 structures conduct?\nNew insights on degree of amorphous to crystalline Li
 -garnet thin films are presented based on model experiments of the structu
 re types. We first fundamentally examine and discuss the different amorpho
 us phases and near order structures that Li-garnets can have being no Zach
 ariasen glasses\, and how those differ to other more established glass typ
 e Li-conductors such as LIPON\, which can form Zachariasen glasses. The th
 ermodynamic stability range of maximum Li-conduction\, phase\, nucleation 
 and growth of nanostructure is discussed using high resolution TEM studies
 \, near order Raman investigations on the Li-bands and electrochemical tra
 nsport measurements.\nIn a second part\, we focus on new processing opport
 unities to Lithiate thin film structures in crystalline state and to assur
 e cubic and fast conducting garnet structures for thin film form. For this
  we will review the field of thin film processing and structure-property f
 or garnet type films and reflect our recent new processing routes based on
  vacuum and wet-chemical techniques.\nThe insights provide novel aspects o
 f glass and ceramic thin film processing and material structure designs fo
 r both the Li-garnet structures (bulk to films) and their interfaces to el
 ectrodes\, which we either functionalize to store energy for next generati
 on solid state batteries or ... make new applications such as Li-operated 
 neuromorphic computation via mmristors\, which we present in a final part.
LOCATION:MED 2 1124 https://plan.epfl.ch/?room=MED21124
STATUS:CONFIRMED
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