Towards cost-effective proton-exchange membranes for redox flow batteries: A facile and innovative method

2020 ◽  
Vol 449 ◽  
pp. 227475 ◽  
Author(s):  
Rui Xue ◽  
Fengjing Jiang ◽  
Feiran Wang ◽  
Xinjie Zhou
Keyword(s):  
Cost Effective ◽  
Proton Exchange Membranes ◽  
Proton Exchange ◽  
Redox Flow Batteries ◽  
Innovative Method ◽  
Flow Batteries

Poly(arylene ether ketone) proton exchange membranes grafted with long aliphatic pendant sulfonated groups for vanadium redox flow batteries

2017 ◽  
Vol 5 (5) ◽  
pp. 2261-2270 ◽  
Author(s):  
Sunhee Yang ◽  
Yeonho Ahn ◽  
Dukjoon Kim
Keyword(s):  
Proton Exchange Membranes ◽  
Proton Exchange ◽  
Good Stability ◽  
Redox Flow Batteries ◽  
Arylene Ether ◽  
Flow Batteries ◽  
Ether Ketone ◽  
Vanadium Redox

Proton exchange membranes based on PAEK grafted with long aliphatic pendant groups which show good stability for VRFB applications.

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.

Robust proton exchange membrane for vanadium redox flow batteries reinforced by silica-encapsulated nanocellulose

2020 ◽  
Vol 45 (16) ◽  
pp. 9803-9810 ◽  
Author(s):  
Yue Zhang ◽  
Yuguang Zhong ◽  
Wenjie Bian ◽  
Weineng Liao ◽  
Xinjie Zhou ◽  
...  
Keyword(s):  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Exchange Membrane ◽  
Vanadium Redox
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