scholarly journals Performance and stability comparison of Aemion™ and Aemion+™ membranes for vanadium redox flow batteries

RSC Advances ◽  
2021 ◽  
Vol 11 (22) ◽  
pp. 13077-13084
Author(s):  
Brian Shanahan ◽  
Benjamin Britton ◽  
Andrew Belletti ◽  
Severin Vierrath ◽  
Matthias Breitwieser
Keyword(s):  
Energy Efficiency ◽  
Coulombic Efficiency ◽  
Membrane Resistance ◽  
Redox Flow Batteries ◽  
P Cycling ◽  
Flow Batteries ◽  
Vanadium Redox

Cycling behaviour of Aemion™ (50 μm), Aemion+™ (50 μm), Aemion+™ (15 μm) and Nafion® 212 (50 μm) at 100 mA cm−2. (a) Coulombic efficiency, (b) energy efficiency and (c) membrane resistance.

Phosphorus and oxygen co-doped composite electrode with hierarchical electronic and ionic mixed conducting networks for vanadium redox flow batteries

2019 ◽  
Vol 55 (77) ◽  
pp. 11515-11518 ◽  
Author(s):  
Wei Ling ◽  
Zhi-An Wang ◽  
Qiang Ma ◽  
Qi Deng ◽  
Jian-Feng Tang ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Electrocatalytic Activity ◽  
Composite Electrode ◽  
Rate Capability ◽  
Ion Conduction ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Conducting Networks ◽  
Vanadium Redox ◽  
Co Doped

The GF-TCN electrodes with excellent electrocatalytic activity and faster electron/ion conduction indicate outstanding rate capability and energy efficiency of VRFBs.

A high-performance ammonia plasma-treated WO3@carbon felt electrode for vanadium redox flow batteries

2021 ◽  
Author(s):  
Weizhe Xiang ◽  
Jian Xu ◽  
Yiqiong Zhang ◽  
Hu Fu ◽  
Xiaobo Zhu ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Active Sites ◽  
High Performance ◽  
Cost Effective ◽  
Composite Electrodes ◽  
Carbon Felt ◽  
Redox Flow Batteries ◽  
Ammonia Plasma ◽  
Flow Batteries ◽  
Vanadium Redox

Due to the pressing need for harnessing renewable energy, sizable energy storage technologies have become increasingly critical, among which vanadium redox flow batteries (VRFBs) are considered as one of the promising technologies. However, the lack of high-performance electrodes hinders the development of VRFBs. Herein, we report a new ammonia plasma-treated WO3@carbon felt as a high-performance electrode for VRFBs. The ammonia plasma introduces not only N-contained functional groups but also oxygen deficiencies on WO3, which provide additional active sites and improve the conductivity, leading to high catalysis for both cathodic and anodic vanadium redoxes. As a result, the energy efficiency and the power density of the VRFB increase from 78.9% to 86% and from 365.5 mWcm[Formula: see text] to 389.6 mWcm[Formula: see text], respectively. Moreover, the energy efficiency of composite electrodes remains stable for more than 300 cycles. This study provides a new strategy for designing cost-effective, environmentally friendly, and high-performance electrodes for future VRFBs.

Heteroatom-doped electrodes for all-vanadium redox flow batteries with ultralong lifespan

2018 ◽  
Vol 6 (1) ◽  
pp. 41-44 ◽  
Author(s):  
Peng Huang ◽  
Wei Ling ◽  
Hang Sheng ◽  
Yan Zhou ◽  
Xiaopeng Wu ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Graphite Felt ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Vanadium Redox

The heteroatom-doped graphite felt electrode with prominent hydrophilicity presents excellent electroactivity towards V2+/V3+ and VO2+/VO2+, and dramatically extends the energy efficiency of vanadium redox flow batteries towards 1000 cycles with 0.003% reduction per cycle.

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