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SUMMARY:Achieving Multivalent-Ion Conductivity in Solids at Room Temperatur
 e
LOCATION:Chemistry A101
TZID:America/Denver
DTSTART:20180101T000000
UID:2026-04-22-22-20-11@natsci.colostate.edu
DTSTAMP:20260422T222011
Description:Literature Seminar Abstract:\n\nMultivalent cations hold promis
 e for dramatically increasing battery capacity over lithium ion technology
 \, as each atom can provide multiple electrons\, as opposed to one (e.g. M
 g ➞ Mg2+ + 2e- v. Li ➞ Li+ + e-). However\, the additional charge on m
 ultivalent cations slows their motion through solids. This slow cation mob
 ility can be overcome at elevated temperatures\, but room temperature ioni
 c mobility is required for practical applications. Recently\, the Ceder gr
 oup used computational techniques to screen viable candidate structures\, 
 and then synthesized and characterized promising candidates to identify Mg
 2+ mobility of ~10-4-10-5 S cm-1 in a spinel material\, MgSc2Se4\, at 298K
  [1]. This report is the first to identify magnesium mobility in an inorga
 nic solid at room temperature\, and begins to identify the design rules ne
 cessary to realize practical solid-state multivalent ion conductors.\n\n[1
 ] Canepa\, Bo\, Gautam\, Key\, Richards\, Shi\, Tian\, Wang\, Li\, and Ced
 er\, “High magnesium mobility in ternary spinel chalcogenides”\, Natur
 e Communications\, 2017 8(1)\, 1759. 4:00 pm
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