TY - JOUR
T1 - An antisymmetric cell structure for high-performance zinc bromine flow battery
AU - Kim, Yongbeom
AU - Jeon, Joonhyeon
N1 - Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2017/12/30
Y1 - 2017/12/30
N2 - Zinc-bromine flow batteries (ZBBs) remain a problem of designing a cell with high coulombic efficiency and stability. This problem is caused intrinsically by different phase transition in each side of the half-cells during charge-discharge process. This paper describes a ZBB with an antisymmetric cell structure, which uses anode and cathode with different surface morphologies, for high-discharge capacity and reliability. The structure of the antisymmetric ZBB cell contains a carbon-surface electrode and a carbon-volume electrode in zinc and bromine half cells, respectively. To demonstrate the effectiveness of this proposed ZBB cell structure, Cyclic Voltammetry measurement is performed on a graphite foil and a carbon felt which are used as the surface and electrodes. Charge and discharge cyclic operations are also carried out with symmetric and antisymmetric ZBB cells combined with the two electrode types. Experimental results show that the arrangement of antisymmetric cell structure in ZBB provides a solution to the high performance and durability.
AB - Zinc-bromine flow batteries (ZBBs) remain a problem of designing a cell with high coulombic efficiency and stability. This problem is caused intrinsically by different phase transition in each side of the half-cells during charge-discharge process. This paper describes a ZBB with an antisymmetric cell structure, which uses anode and cathode with different surface morphologies, for high-discharge capacity and reliability. The structure of the antisymmetric ZBB cell contains a carbon-surface electrode and a carbon-volume electrode in zinc and bromine half cells, respectively. To demonstrate the effectiveness of this proposed ZBB cell structure, Cyclic Voltammetry measurement is performed on a graphite foil and a carbon felt which are used as the surface and electrodes. Charge and discharge cyclic operations are also carried out with symmetric and antisymmetric ZBB cells combined with the two electrode types. Experimental results show that the arrangement of antisymmetric cell structure in ZBB provides a solution to the high performance and durability.
UR - http://www.scopus.com/inward/record.url?scp=85040728263&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/939/1/012021
DO - 10.1088/1742-6596/939/1/012021
M3 - Conference article
AN - SCOPUS:85040728263
SN - 1742-6588
VL - 939
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
IS - 1
M1 - 012021
T2 - 6th International Conference on Materials and Applications for Sensors and Transducers, IC-MAST 2016
Y2 - 27 September 2016 through 30 September 2016
ER -