RT info:eu-repo/semantics/article
T1 The Redox‐Mediated Nickel–Metal Hydride Flow Battery
A1 Páez, Teresa
A1 Zhang, FeiFei
A1 Lubian, Lara
A1 Xi, Shibo
A1 Wang, Qing
A1 Palma, Jesús
A1 Muñoz Torres, Miguel Ángel
A1 Sanz Díez, Roberto
A1 Ventosa Arbaizar, Edgar
K1 Electrochemistry
K1 Redox flow batteries
K1 Redox mediators
K1 Redox targeting
K1 Solid boosters
K1 Química analítica
K1 Chemistry, Analytic
AB Each battery technology possesses intrinsic advantages and disadvantages, e.g., nickel–metal hydride (MH) batteries offer relatively high specific energy and power as well as safety, making them the power of choice for hybrid electric vehicles, whereas aqueous organic flow batteries (AORFBs) offer sustainability, simple replacement of their active materials and independent scalability of energy and power, making them very attractive for stationary energy storage. Herein, a new battery technology that merges the above mentioned battery technologies through the use of redox-mediated reactions is proposed that intrinsically possesses the main features of each separate technology, e.g., high energy density of the solid active materials, easy recyclability, and independent scalability of energy and power. To achieve this, Ni(OH)2 and MHs are confined in the positive and negative reservoirs of an AORFB that employs alkaline solutions of potassium ferrocyanide and a mixture of 2,6-dihydroxyanthraquinone and 7,8-dihydroxyphenazine-2-sulfonic acid as catholyte and anolyte, respectively. An energy density of 128 Wh L–1 is achieved based on the capacity of the reservoirs leaving ample room for improvement up to the theoretical limit of 378 Wh L–1. This new battery technology opens up new market opportunities never before envisaged, for redox flow batteries, e.g., domestic energy storage and heavy-duty vehicle transportation.
PB Wiley
SN 1614-6832
YR 2022
FD 2022-01
LK http://hdl.handle.net/10259/6361
UL http://hdl.handle.net/10259/6361
LA eng
NO Spanish Government through the Research Challenges Programme (Grant No. RTI2018-099228-A-I00). E.V. thanks the MINECO for the financial support (RYC2018-026086-I).
DS Repositorio Institucional de la Universidad de Burgos
RD 04-dic-2024