A deep eutectic solvent (DES) electrolyte-based vanadium-iron redox flow battery enabling higher specific capacity and improved thermal stability

2019 ◽  
Vol 293 ◽  
pp. 426-431 ◽  
Author(s):  
Q. Xu ◽  
L.Y. Qin ◽  
Y.N. Ji ◽  
P.K. Leung ◽  
H.N. Su ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Specific Capacity ◽  
Deep Eutectic Solvent ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
Vanadium Iron ◽  
Iron Redox

scholarly journals Effect of Fe(III) on the positive electrolyte for vanadium redox flow battery

2019 ◽  
Vol 6 (1) ◽  
pp. 181309 ◽  
Author(s):  
Muqing Ding ◽  
Tao Liu ◽  
Yimin Zhang ◽  
Zhenlei Cai ◽  
Yadong Yang ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Electrochemical Behaviour ◽  
Vanadium Redox Flow Battery ◽  
Collision Probability ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
Transfer Resistance ◽  
Practical Guidance ◽  
Vanadium Redox ◽  
Vanadium Ions

It is important to study the effect of Fe(III) on the positive electrolyte, in order to provide some practical guidance for the preparation and use of vanadium electrolyte. The effect of Fe(III) on the thermal stability and electrochemical behaviour of the positive electrolyte for the vanadium redox flow battery (VRFB) was investigated. When the Fe(III) concentration was above 0.0196 mol l −1 , the thermal stability of V(V) electrolyte was impaired, the diffusion coefficient of V(IV) species decreased from (2.06–3.33) × 10 −6 cm 2 s −1 to (1.78–2.88) × 10 −6 cm 2 s −1 , and the positive electrolyte exhibited a higher electrolyte resistance and a charge transfer resistance. Furthermore, Fe(III) could result in the side reaction and capacity fading, which would have a detrimental effect on battery application. With the increase of Fe(III), the collision probability of vanadium ions with Fe(III) and the competition with the redox reaction was aggravated, which would interfere with the electrode reaction, the diffusion of vanadium ions and the performance of VRFB. Therefore, this study provides some practical guidance that it is best to bring the impurity of Fe(III) below 0.0196 mol l −1 during the preparation and use of vanadium electrolyte.

Effect of organophosphorus compound additives for thermal stability on the positive electrolyte of a vanadium redox flow battery

2018 ◽  
Vol 48 (9) ◽  
pp. 1019-1030 ◽  
Author(s):  
Chang-Soo Jin ◽  
Jae-Young So ◽  
Kyoung-Hee Shin ◽  
Eun-Bi Ha ◽  
Min Jeong Choi ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Organophosphorus Compound ◽  
Vanadium Redox Flow Battery ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
Vanadium Redox

scholarly journals A zinc–iron redox-flow battery under $100 per kW h of system capital cost

2015 ◽  
Vol 8 (10) ◽  
pp. 2941-2945 ◽  
Author(s):  
Ke Gong ◽  
Xiaoya Ma ◽  
Kameron M. Conforti ◽  
Kevin J. Kuttler ◽  
Jonathan B. Grunewald ◽  
...  
Keyword(s):  
Low Cost ◽  
Capital Cost ◽  
Cell Performance ◽  
Redox Flow Battery ◽  
High Cell ◽  
Flow Battery ◽  
Iron Redox

A zinc–iron redox-flow battery is developed that uses low cost redox materials and delivers high cell performance, consequently achieving an unprecedentedly low system capital cost under $100 per kW h.

scholarly journals A Sustainable Redox-Flow Battery with an Aluminum-Based, Deep-Eutectic-Solvent Anolyte

2017 ◽  
Vol 56 (26) ◽  
pp. 7454-7459 ◽  
Author(s):  
Changkun Zhang ◽  
Yu Ding ◽  
Leyuan Zhang ◽  
Xuelan Wang ◽  
Yu Zhao ◽  
...  
Keyword(s):  
Deep Eutectic Solvent ◽  
Redox Flow Battery ◽  
Flow Battery

Flow-Field Geometry Effect on H2–Iron Redox Flow Battery

2020 ◽  
Vol 146 (6) ◽  
pp. 04020063
Author(s):  
Seo Yeon Cho ◽  
Chris Janis ◽  
Christopher Inc ◽  
Kyu Taek Cho
Keyword(s):  
Flow Field ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
Geometry Effect ◽  
Field Geometry ◽  
Iron Redox
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