Influence of Carbon Material Properties on Activity and Stability of the Negative Electrode in Vanadium Redox Flow Batteries: A Model Electrode Study

2018 ◽  
Vol 1 (3) ◽  
pp. 1166-1174 ◽  
Author(s):  
Susan M. Taylor ◽  
Alexandra Pătru ◽  
Daniele Perego ◽  
Emiliana Fabbri ◽  
Thomas J. Schmidt
Keyword(s):  
Material Properties ◽  
Carbon Material ◽  
Negative Electrode ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Vanadium Redox

Hydrogen evolution at the negative electrode of the all-vanadium redox flow batteries

2014 ◽  
Vol 248 ◽  
pp. 560-564 ◽  
Author(s):  
Che-Nan Sun ◽  
Frank M. Delnick ◽  
Loïc Baggetto ◽  
Gabriel M. Veith ◽  
Thomas A. Zawodzinski
Keyword(s):  
Hydrogen Evolution ◽  
Negative Electrode ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Vanadium Redox

scholarly journals High-power nitrided TiO2 carbon felt as the negative electrode for all-vanadium redox flow batteries

Carbon ◽  
2019 ◽  
Vol 148 ◽  
pp. 91-104 ◽  
Author(s):  
J. Vázquez-Galván ◽  
C. Flox ◽  
J.R. Jervis ◽  
A.B. Jorge ◽  
P.R. Shearing ◽  
...  
Keyword(s):  
High Power ◽  
Negative Electrode ◽  
Carbon Felt ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Vanadium Redox

Resolving Losses at the Negative Electrode in All-Vanadium Redox Flow Batteries Using Electrochemical Impedance Spectroscopy

2014 ◽  
Vol 161 (6) ◽  
pp. A981-A988 ◽  
Author(s):  
Che-Nan Sun ◽  
Frank M. Delnick ◽  
Douglas S. Aaron ◽  
Alexander B. Papandrew ◽  
Matthew M. Mench ◽  
...  
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Electrochemical Impedance ◽  
Negative Electrode ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Vanadium Redox

Hydrogen‐Treated Rutile TiO 2 Shell in Graphite‐Core Structure as a Negative Electrode for High‐Performance Vanadium Redox Flow Batteries

ChemSusChem ◽  
2017 ◽  
Vol 10 (9) ◽  
pp. 2089-2098 ◽  
Author(s):  
Javier Vázquez‐Galván ◽  
Cristina Flox ◽  
Cristian Fàbrega ◽  
Edgar Ventosa ◽  
Andres Parra ◽  
...  
Keyword(s):  
High Performance ◽  
Negative Electrode ◽  
Core Structure ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Vanadium Redox

scholarly journals Concurrent nanoscale surface etching and SnO2 loading of carbon fibers for vanadium ion redox enhancement

2019 ◽  
Vol 10 ◽  
pp. 985-992 ◽  
Author(s):  
Jun Maruyama ◽  
Shohei Maruyama ◽  
Tomoko Fukuhara ◽  
Toru Nagaoka ◽  
Kei Hanafusa
Keyword(s):  
Carbon Fiber ◽  
Redox Reactions ◽  
Negative Electrode ◽  
Fiber Surface ◽  
Electrode Reaction ◽  
Redox Flow Batteries ◽  
Surface Etching ◽  
Flow Batteries ◽  
Carbon Fiber Surface ◽  
Vanadium Redox

Facile and efficient methods to prepare active electrodes for redox reactions of electrolyte ions are required to produce efficient and low-cost redox flow batteries (RFBs). Carbon-fiber electrodes are widely used in various types of RFBs and surface oxidation is commonly performed to enhance the redox reactions, although it is not necessarily efficient. Quite recently, a technique for nanoscale and uniform surface etching of the carbon fiber surface was developed and a significant enhancement of the negative electrode reaction of vanadium redox flow batteries was attained, although the enhancement was limited to the positive electrode reaction. In this study, we attempted to obtain an additional enhancement effect of metal-oxide nanoparticles without the need for further processing steps. A coating with carbonaceous thin films was obtained coating by sublimation, deposition, and pyrolysis of tin(II) phthalocyanine (SnPc) on a carbon fiber surface in a single heat-treatment step. The subsequent thermal oxidation concurrently achieved nanoscale surface etching and loading with SnO2 nanoparticles. The nanoscale-etched and SnO2-loaded surface was characterized by field-emission scanning electron microscopy (FESEM), Raman spectroscopy, and X-ray photoelectron spectroscopy (XPS). The activity for the vanadium ion redox reactions was evaluated by cyclic voltammetry (CV) to demonstrate the enhancement of both the positive and negative electrode reactions. A full cell test of the vanadium redox flow battery (VRFB) showed a significant decrease of the overpotential and a stable cycling performance. A facile and efficient technique based on the nanoscale processing of the carbon fiber surface was presented to substantially enhance the activity for the redox reactions in redox flow batteries.

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