Results 201 to 210 of about 8,281 (249)

Polarization curve analysis of all-vanadium redox flow batteries

Journal of Applied Electrochemistry, 2011
We outline the analysis of performance of redox flow batteries (RFBs) using polarization curves. This method allows the researcher immediate access to sources of performance losses in flow batteries operating at steady state. We provide guidance on ‘best practices’ for use of this tool, illustrated using examples from single cells operating as vanadium
Doug Aaron, Zhijiang Tang, Alexander B. Papandrew, Thomas A. Zawodzinski   +3 more
openaire   +1 more source

Characteristics of a new all-vanadium redox flow battery

Journal of Power Sources, 1988
Abstract The construction and performance of an all-vanadium redox flow system is described. The battery employs vanadyl sulphate in sulphuric acid solution as the electrolyte, carbon felt as the electrode material, and an ion-selective membrane as the separator.
M. Rychcik, M. Skyllas-Kazacos
openaire   +1 more source

Water crossover phenomena in all-vanadium redox flow batteries

Electrochimica Acta, 2019
Abstract Water crossover through the membrane of a vanadium redox flow battery system is not desirable because it floods one half-cell, diluting the vanadium solution on one side and consequently increasing the concentration of vanadium in the other half-cell.
Kyeongmin Oh, Milad Moazzam, Geonhui Gwak, Hyunchul Ju   +3 more
openaire   +1 more source

Sulfonated Polyphenylsulfone Membrane for all Vanadium Redox Flow Batteries

ECS Meeting Abstracts, 2010
Abstract not Available.
Soowhan Kim, Jingling Yan, Birgit Schwenzer, Jianlu Zhang, Liyu Li, Jun Liu, Zhenguo (Gary) Yang, Michael Hickner   +7 more
openaire   +1 more source

Determination of Overpotentials in All Vanadium Redox Flow Batteries

ECS Transactions, 2014
In this work we present a redox-flow battery set-up, into which two reference electrodes were inserted. This system allows for the investigation of individual overpotentials in each half-cell. Further, polarization (E/i) curves were recorded for different states of charge (SOC) of the battery.
Langner, Joachim, Melke, Julia, Ehrenberg, Helmut, Roth, Christina   +3 more
openaire   +2 more sources

Novel catalytic effects of Mn3O4 for all vanadium redox flow batteries

Chemical Communications, 2012
A new approach for enhancing the electrochemical performance of carbon felt electrodes by employing non-precious metal oxides is designed. The outstanding electro-catalytic activity and mechanical stability of Mn(3)O(4) are advantageous in facilitating the redox reaction of vanadium ions, leading to efficient operation of a vanadium redox flow battery.
Ki Jae, Kim, Min-Sik, Park, Jae-Hun, Kim, Uk, Hwang, Nam Jin, Lee, Goojin, Jeong, Young-Jun, Kim   +6 more
openaire   +2 more sources

In Situ Kinetics Studies in All-Vanadium Redox Flow Batteries

ECS Electrochemistry Letters, 2013
We report results of polarization measurements resolved for the negative and positive electrodes of vanadium redox batteries (VRBs) using a dynamic hydrogen electrode in an operating battery cell. Electrochemical experiments with symmetric electrolyte feeds were also performed.
D. Aaron, C.-N. Sun, M. Bright, A. B. Papandrew, M. M. Mench, T. A. Zawodzinski   +5 more
openaire   +1 more source

Simulation of all-vanadium redox flow batteries based on COMSOL

2017 29th Chinese Control And Decision Conference (CCDC), 2017
In the current situation of energy shortage and environmental deterioration, all vanadium redox flow battery is the most promising new energy storage battery, playing a key role on popularization of distributed power grid and new energy power generation.
Mingang Zhu, Qiuxuan Wu, Xiaoni Chi, Yanbin Luo   +3 more
openaire   +1 more source

Commercializing the Chloride-Containing All Vanadium Redox Flow Battery

ECS Meeting Abstracts, 2014
In 2010, a new vanadium redox flow battery chemistry using chloride-containing supporting electrolytes was invented at Pacific Northwest National Laboratory.1,2 By adding a certain amount of chloride anions into the vanadium ions supporting solutions, stable V-Cl complexes form. This new chemistry substantially improves the electrolyte
openaire   +1 more source

Porous poly(benzimidazole) membrane for all vanadium redox flow battery

Journal of Power Sources, 2016
Abstract Porous poly(benzimidazole) (PBI) membranes of low vanadium ions permeability are described for an all vanadium redox flow battery (VRFB). The PBI membrane was prepared by a water vapour induced phase inversion process of a PBI polymer solution. The membrane has a symmetrical cross-sectional morphology. A low water permeability of 16.5 L (m 2
Tao Luo, Oana David, Youri Gendel, Matthias Wessling   +3 more
openaire   +1 more source