Ultra-low vanadium ion diffusion amphoteric ion-exchange membranes for all-vanadium redox flow batteries

2015 ◽  
Vol 282 ◽  
pp. 241-247 ◽  
Author(s):  
J.B. Liao ◽  
M.Z. Lu ◽  
Y.Q. Chu ◽  
J.L. Wang
Keyword(s):  
Ion Exchange ◽  
Ion Exchange Membranes ◽  
Ion Diffusion ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Vanadium Redox ◽  
Vanadium Ion

Ion exchange membranes for vanadium redox flow batteries

2014 ◽  
Vol 86 (5) ◽  
pp. 633-649 ◽  
Author(s):  
Xiongwei Wu ◽  
Junping Hu ◽  
Jun Liu ◽  
Qingming Zhou ◽  
Wenxin Zhou ◽  
...  
Keyword(s):  
Energy Storage ◽  
Ion Exchange ◽  
Large Scale ◽  
Storage System ◽  
Energy Storage System ◽  
Ion Exchange Membranes ◽  
Structure And Property ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Vanadium Redox

Abstract In recent years, much attention has been paid to vanadium redox flow batteries (VRBs) because of their excellent performance as a new and efficient energy storage system, especially for large-scale energy storage. As one core component of a VRB, ion exchange membrane prevents cross-over of positive and negative electrolytes, while it enables the transportation of charge-balancing ions such as H+, $${\text{SO}}_4^{2 - },$$ and $${\text{HSO}}_4^ - $$ to complete the current circuit. To a large extent, its structure and property affect the performance of VRBs. This review focuses on the latest work on the ion exchange membranes for VRBs such as perfluorinated, partially fluorinated, and nonfluorinated membranes. The prospective for future development on membranes for VRBs is also proposed.

scholarly journals Ion exchange membranes for vanadium redox flow batteries

ENERGYO ◽  
2018 ◽  
Author(s):  
Xiongwei Wu ◽  
Junping Hu ◽  
Jun Liu ◽  
Qingming Zhou ◽  
Wenxin Zhou ◽  
...  
Keyword(s):  
Ion Exchange ◽  
Ion Exchange Membranes ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Vanadium Redox

scholarly journals An overview of amphoteric ion exchange membranes for vanadium redox flow batteries

2021 ◽  
Vol 69 ◽  
pp. 212-227
Author(s):  
Lei Liu ◽  
Chao Wang ◽  
Zhenfeng He ◽  
Rajib Das ◽  
Binbin Dong ◽  
...  
Keyword(s):  
Ion Exchange ◽  
Ion Exchange Membranes ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Vanadium Redox

scholarly journals Direct Measurement of Crossover and Interfacial Resistance of Ion-Exchange Membranes in All-Vanadium Redox Flow Batteries

Membranes ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 126
Author(s):  
Yasser Ashraf Gandomi ◽  
Doug S. Aaron ◽  
Zachary B. Nolan ◽  
Arya Ahmadi ◽  
Matthew M. Mench
Keyword(s):  
Ionic Conductivity ◽  
Ion Exchange ◽  
High Performance ◽  
Single Layer ◽  
Experimental System ◽  
Ion Exchange Membranes ◽  
Interfacial Resistance ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Vanadium Redox

Among various components commonly used in redox flow batteries (RFBs), the separator plays a significant role, influencing resistance to current as well as capacity decay via unintended crossover. It is well-established that the ohmic overpotential is dominated by the membrane and interfacial resistance in most aqueous RFBs. The ultimate goal of engineering membranes is to improve the ionic conductivity while keeping crossover at a minimum. One of the major issues yet to be addressed is the contribution of interfacial phenomena in the influence of ionic and water transport through the membrane. In this work, we have utilized a novel experimental system capable of measuring the ionic crossover in real-time to quantify the permeability of ionic species. Specifically, we have focused on quantifying the contributions from the interfacial resistance to ionic crossover. The trade-off between the mass and ionic transport impedance caused by the interface of the membranes has been addressed. The MacMullin number has been quantified for a series of electrolyte configurations and a correlation between the ionic conductivity of the contacting electrolyte and the Nafion® membrane has been established. The performance of individual ion-exchange membranes along with a stack of various separators have been explored. We have found that utilizing a stack of membranes is significantly beneficial in reducing the electroactive species crossover in redox flow batteries compared to a single membrane of the same fold thickness. For example, we have demonstrated that the utilization of five layers of Nafion® 211 membrane reduces the crossover by 37% while only increasing the area-specific resistance (ASR) by 15% compared to a single layer Nafion® 115 membrane. Therefore, the influence of interfacial impedance in reducing the vanadium ion crossover is substantially higher compared to a corresponding increase in ASR, indicating that mass and ohmic interfacial resistances are dissimilar. We have expanded our analysis to a combination of commercially available ion-exchange membranes and provided a design chart for membrane selection based on the application of interest (short duration/high-performance vs. long-term durability). The results of this study provide a deeper insight into the optimization of all-vanadium redox flow batteries (VRFBs).

scholarly journals 3D flower-like molybdenum disulfide modified graphite felt as a positive material for vanadium redox flow batteries

RSC Advances ◽  
2020 ◽  
Vol 10 (29) ◽  
pp. 17235-17246
Author(s):  
Lei Wang ◽  
Shuangyu Li ◽  
Dan Li ◽  
Qinhao Xiao ◽  
Wenheng Jing
Keyword(s):  
Ion Transport ◽  
Molybdenum Disulfide ◽  
Open Flower ◽  
Graphite Felt ◽  
Redox Flow Batteries ◽  
Positive Material ◽  
Flow Batteries ◽  
Vanadium Redox ◽  
Vanadium Ion

The open flower-like structure facilitates vanadium ion transport. The capacity and efficiency of a battery using MoS2/GF are dramatically increased.

Sign in / Sign up

Export Citation Format

Share Document