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SUMMARY:Energy storage: Probing ion dynamics at the nanoscale in supercapa
 citors - Dr Celine Merlet
DTSTART:20161117T131000Z
DTEND:20161117T140000Z
UID:TALK69088@talks.cam.ac.uk
CONTACT:Janet Gibson
DESCRIPTION:Supercapacitors are energy storage systems\, complementary to 
 batteries\, already used in a number of applications such as regenerative 
 energy braking and start-stop systems. While supercapacitors are already f
 avored for applications requiring large power densities\, they still suffe
 r from low energy densities\, compared to batteries\, which limits their u
 se. Understanding the molecular processes at the origin of the observed pe
 rformances is essential in order to design optimised systems. In this talk
 \, I will introduce how NMR (Nuclear Magnetic Resonance) can be used as a 
 tool to probe the charge storage mechanisms and ion dynamics in these comp
 lex systems. NMR is a very powerful tool for such a task as it can probe s
 eparately the various species present in the system and can be used in sit
 u\, i.e. while charging and discharging the supercapacitor. I will show wh
 at NMR\, sometimes combined with appropriate simulation techniques\, can t
 ell us about the microscopic events occurring in supercapacitors.
LOCATION:The Richard King Room\, Darwin College
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