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SUMMARY:Towards efficient large scale electricity storage with an integrat
 ed Ni-Fe battery and electrolyser
DTSTART:20171123T103000
DTEND:20171123T113000
DTSTAMP:20260407T101140Z
UID:eb36523ec63b6aa99c2c2bf9c73583fb66d4021a18f0ae04570d2e54
CATEGORIES:Conferences - Seminars
DESCRIPTION:Fokko Mulder Chemical Engineering\, Faculty of Applies Science
 s\, Delft University of Technology\,   Delft\, The Netherlands  \n \nGr
 id scale electricity storage on daily and seasonal time scales is required
  to accommodate increasing amounts of renewable electricity from wind and 
 solar power. The proposal for electricity storage that emerges is that sto
 rage in batteries is efficient for the short term while storage in hydroge
 n based fuels is required for the long term.[1] Towards the realization of
  that goal a novel approach is taken to battery storage in the form of an 
 integrated battery-electrolyser (‘battolyser’) that efficiently stores
  electricity as a nickel–iron battery and can split water into hydrogen 
 and oxygen as an alkaline electrolyser.[2] During charge insertion the Ni(
 OH)2 and Fe(OH)2 electrodes form nanostructured NiOOH and reduced Fe\, whi
 ch subsequently act as efficient oxygen and hydrogen evolution catalysts r
 espectively.\n\nOur results demonstrate a remarkable constant and a high o
 verall energy efficiency (80–90%)\, enhanced electrode storage density\,
  fast current switching capabilities\, and a general stable performance du
 ring intensive long term tests\, all without using noble metals.\nAs a nex
 t step the proposal is to store the hydrogen in the form of liquid ammonia
 \, which can be used as fuel for the production of electricity\, and which
  would enable the full decarbonisation of the electricity sector. A short 
 description of the feasibility of such approach will be discussed.\n 
LOCATION:I17 4 K2 https://plan.epfl.ch/?room==I17%204%20K2
STATUS:CONFIRMED
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