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Sustainable Electrical Energy Storage through the Ferrocene/Ferrocenium Redox Reaction in Aprotic Electrolyte
Author(s) -
Zhao Yu,
Ding Yu,
Song Jie,
Li Gang,
Dong Guangbin,
Goodenough John B.,
Yu Guihua
Publication year - 2014
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201406135
Subject(s) - redox , ferrocene , flow battery , energy storage , electrolyte , renewable energy , anode , environmentally friendly , cathode , separator (oil production) , electrochemistry , chemistry , chemical engineering , battery (electricity) , materials science , inorganic chemistry , electrode , electrical engineering , power (physics) , ecology , physics , quantum mechanics , biology , engineering , thermodynamics
Abstract The large‐scale, cost‐effective storage of electrical energy obtained from the growing deployment of wind and solar power is critically needed for the integration into the grid of these renewable energy sources. Rechargeable batteries having a redox‐flow cathode represent a viable solution for either a Li‐ion or a Na‐ion battery provided a suitable low‐cost redox molecule soluble in an aprotic electrolyte can be identified that is stable for repeated cycling and does not cross the separator membrane to the anode. Here we demonstrate an environmentally friendly, low‐cost ferrocene/ferrocenium molecular redox couple that shows about 95 % energy efficiency and about 90 % capacity retention after 250 full charge/discharge cycles.