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SUMMARY:Prussian Blue Analogues: Battery Materials For Grid­‐Scale Ener
 gy Storage Applications
DTSTART:20130430T153000
DTEND:20130430T163000
DTSTAMP:20260511T070435Z
UID:f63982c6531643bb8f121eee8cb014b9e4e70d067bf5ca07cf919c12
CATEGORIES:Conferences - Seminars
DESCRIPTION:Dr Mauro Pasta\, Stanford University\, USA\nBio: Dr. Mauro Pas
 ta is a postdoctoral fellow in the Materials Science and Engineering depar
 tment at Stanford University\, working in Prof. Yi Cui’s research group.
   He received his PhD in Industrial Chemistry from the University of Mila
 n in 2010. His thesis on glucose electro-oxidation was awarded the “De N
 ora prize” as a best PhD thesis in electrochemistry by the Italian Chemi
 cal Society. Before joining Stanford he was a postdoctoral researcher at t
 he Center for Electrochemical Sciences of Ruhr University-Bochum. His work
  on batteries for efficient seawater desalination and lithium recovery fro
 m brines was awarded the International Society of Electrochemistry Travel 
 Award for Young Electrochemists. His research focuses on electrochemistry 
 and materials science applied to energy storage and conversion devices. In
  particular he is working on batteries for stationary storage applications
 \, energy extraction from salinity differences and carbon dioxide sequestr
 ation. Personally\, Mauro is a beach volleyball player\, a cyclist and an 
 avid motorbike hobbyist.\nNew types of energy storage are needed in conjun
 ction with the deployment of solar\, wind\, and other volatile renewable e
 nergy sources and their integration with the electrical grid. No existing 
 energy storage technology can provide the power\, cycle life\, and energy 
 efficiency needed to respond to the costly short-term transients that aris
 e from renewables and other aspects of grid operation. We recently introdu
 ced a new family of insertion electrodes based on the open framework cryst
 al structure of Prussian Blue. This structure is composed of a face-center
 ed cubic framework of transition metal cations where each cation is octahe
 drally coordinated to hexacyanometallate groups. Large interstitial “A S
 ites” within the structure can accommodate zeolitic water and alkali ion
 s allowing rapid insertion and removal of Na+\, K+\, and other ions from a
 queous solutions with little lattice strain. The result is an extremely st
 able electrode: over 40\,000 deep discharge cycles were demonstrated in th
 e case of copper hexacyanoferrate.\nWe were able to demonstrate a new type
  of safe\, fast\, inexpensive\, long-cycle life aqueous electrolyte batter
 y which relies on the insertion of sodium ions into a copper hexacyanoferr
 ate cathode and a manganese hexacyanomanganate anode\, each of which have 
 the same open framework crystal structure. The electrodes in this battery 
 are synthesized in bulk quantities by a room temperature chemical synthesi
 s from earth-abundant precursors and when operated in an appropriate aqueo
 us electrolyte\, show extremely long cycle life\, fast kinetics\, and high
  efficiency\, resulting in a full battery cell that can meet the demands o
 f large scale energy storage.
LOCATION:MEB1B10 http://plan.epfl.ch/?room=ME%20B1%20B10
STATUS:CONFIRMED
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