scholarly journals Polymer Electrolyte Membranes

Membranes ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 244
Author(s):  
Byungchan Bae ◽  
Dukjoon Kim
Keyword(s):  
Fuel Cells ◽  
Polymer Electrolyte ◽  
Polymer Electrolyte Membranes ◽  
Capacitive Deionization ◽  
Lithium Secondary Batteries ◽  
Energy Devices ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Electrolyte Membranes ◽  
Electrochemical Energy

Recently, polymer electrolyte membranes have been used in various electrochemical energy devices and other applications, such as fuel cells, lithium secondary batteries, redox flow batteries, electrodialysis, and membrane capacitive deionization [...]

Polymer Electrolyte Membranes for Vanadium Redox Flow Batteries: Fundamentals and Applications

2021 ◽  
Vol 85 ◽  
pp. 100926
Author(s):  
Xingyi Shi ◽  
Oladapo Christopher Esan ◽  
Xiaoyu Huo ◽  
Yining Ma ◽  
Zhefei Pan ◽  
...  
Keyword(s):  
Polymer Electrolyte ◽  
Polymer Electrolyte Membranes ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Electrolyte Membranes ◽  
Vanadium Redox

Laboratory XANES to study vanadium species in vanadium redox flow batteries

2020 ◽  
Vol 35 (S1) ◽  
pp. S24-S28 ◽  
Author(s):  
Christian Lutz ◽  
Ursula Elisabeth Adriane Fittschen
Keyword(s):  
Large Scale ◽  
Polymer Electrolyte Membranes ◽  
Measurement Time ◽  
Edge Structure ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Electrolyte Membranes ◽  
X Ray Absorption ◽  
Vanadium Redox ◽  
Vanadium Species

The speciation of vanadium in the electrolyte of vanadium redox flow batteries (VRFBs) is important to determine the state of charge of the battery. To obtain a better understanding of the transport of the different vanadium species through the separator polymer electrolyte membranes, it is necessary to be able to determine concentration and species of the vanadium ions inside the nanoscopic water body of the membranes. The speciation of V in the electrolyte of VRFBs has been performed by others at the synchrotron by X-ray absorption near-edge structure analysis (XANES). However, the concentrations are quite high and not necessarily justify the use of a large-scale facility. Here, we show that vanadium species in the electrolyte and inside the ionomeric membranes can be determined by laboratory XANES. We were able to determine V species in the 1.6 M electrolyte with a measurement time of 2.3 h and V species having a concentration of 9.8 g kg−1 inside the membranes (178 µm thick) with a measurement time of 5 h. Our results show that laboratory XANES is an appropriate tool to study these kind of samples.

PBI-based polymer electrolyte membranes fuel cells

2007 ◽  
Vol 52 (12) ◽  
pp. 3910-3920 ◽  
Author(s):  
Justo Lobato ◽  
Pablo Cañizares ◽  
Manuel A. Rodrigo ◽  
José J. Linares
Keyword(s):  
Fuel Cells ◽  
Polymer Electrolyte ◽  
Polymer Electrolyte Membranes ◽  
Electrolyte Membranes
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