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Published on: February 13, 2017
Gamma-aminobutyric acid-functionalized naphthalene diimide for aqueous organic flow batteries
Mahsa Shahsavan1, Cedrik Wiberg1, Pekka Peljo1
1Research Group of Battery Materials and Technologies, Department of Mechanical and Materials Engineering, Faculty of Technology, University of Turku, 20014 Turku, Finland. pekka.peljo@utu.fi.
Abstract:
An anionic gamma-aminobutyric acid-functionalized naphthalene diimide (GABA-NDI) was investigated for its possible application in flow batteries. A GABA-NDI/ferrocyanide flow battery was stable over 200 cycles and demonstrated an average coulombic efficiency of 99.96% and an excellent energy efficiency of 80.9% at 60 mA cm-2 while accessing 95% of the theoretical capacity of GABA-NDI. An increase in solubility and stability was achieved compared to previous studies.

