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SUMMARY:Following Function in Real Time: New Methods for Studying Structur
 e and Dynamics in Batteries and Supercapacitors - Dr Clare Grey
DTSTART:20141107T200000Z
DTEND:20141107T213000Z
UID:TALK56055@talks.cam.ac.uk
CONTACT:Andrea Chlebikova
DESCRIPTION:Cheaper and more efficient/effective ways to convert and store
  energy are required to reduce CO2 emissions.  Batteries and supercapacito
 rs will play an important role\, but significant advances require that we 
 (i) identify new materials for these applications\, and (ii) determine how
  these devices operate over a wide range of time and length scales. A full
  understanding of the operation of a device requires that we utilize metho
 ds that allow devices or materials to be probed while they are operating (
 i.e.\, in situ). This allows\, for example\, the transformations of the va
 rious cell components to be followed under realistic conditions without ha
 ving to disassemble and take apart the cell. To this end\, the application
  of new in and ex-situ Nuclear Magnetic Resonance (NMR) and diffraction ap
 proaches to correlate structure and dynamics with function in materials li
 thium-ion batteries\, supercapacitors and solid oxide fuel cells will be d
 escribed. The in-situ approach allows processes to be captured\, which are
  very difficult to detect directly by ex-situ methods. For example\, we ca
 n detect side reactions involving the electrolyte and the electrode materi
 als\, and processes that occur during extremely fast charging and discharg
 ing.  Ex-situ investigations allow more detailed structural studies to be 
 performed to correlate local and long-range structure with performance in 
 both batteries and fuel cell materials.
LOCATION:Wolfson Lecture Theatre\, Department of Chemistry\, Lensfield Rd\
 , CB2 1EW
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