Nitrogen-doped porous graphene as a highly efficient cathodic electrocatalyst for aqueous organic redox flow battery application

2017 ◽  
Vol 5 (17) ◽  
pp. 7944-7951 ◽  
Author(s):  
Jianyu Cao ◽  
Zhentao Zhu ◽  
Juan Xu ◽  
Meng Tao ◽  
Zhidong Chen
Keyword(s):  
Energy Storage ◽  
Service Life ◽  
High Efficiency ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
Nitrogen Doped ◽  
Porous Graphene ◽  
Highly Efficient ◽  
Storage Technologies ◽  
Battery Application

The redox flow battery (RFB) is considered one of the most attractive energy storage technologies because of its high efficiency, long service life and great safety.

High efficiency of CO 2 -activated graphite felt as electrode for vanadium redox flow battery application

2017 ◽  
Vol 364 ◽  
pp. 1-8 ◽  
Author(s):  
Yu-Chung Chang ◽  
Jian-Yu Chen ◽  
Daniel Manaye Kabtamu ◽  
Guan-Yi Lin ◽  
Ning-Yih Hsu ◽  
...  
Keyword(s):  
High Efficiency ◽  
Vanadium Redox Flow Battery ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
Graphite Felt ◽  
Vanadium Redox ◽  
Battery Application

scholarly journals Study on Organic Redox Flow Battery Mechanism using TEMPO and FMN-Na Solutions

REAKTOR ◽  
2019 ◽  
Vol 19 (3) ◽  
pp. 96-100
Author(s):  
Faishal Maulana Kusumah ◽  
Dita Baeti Pridiana ◽  
Peter Kusnadi ◽  
Dessy Ariyanti
Keyword(s):  
Energy Storage ◽  
Scale Up ◽  
Sem Analysis ◽  
Chloride Ions ◽  
Discharge Process ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
Charge Process ◽  
Electricity Grids ◽  
Storage Technologies

Among numerous energy storage technologies, redox flow battery is one of the promising technologies that can be used to supply reliable continuation of electricity to electricity grids with a scale up to MW or MWh.  In this paper, the process mechanism and optimization of redox flow battery using organic solution such as Riboflavin-5’-phosphate sodium salt dihydrate (FMN-Na) as anolyte and 4-hydroxy-2,2,6,6-tetramethylpiperidin-1-oxyl (TEMPO) as catholyte were investigated. Sodium and chloride ions in salt feed were moved respectively to anolyte and catholyte by electrochemical reaction of electrolytes during the charge process and return to the feed during the discharge process. The study was carried out by given electric current with different voltage to graphite electrode range 1,5-10,5 volts and TEMPO concentration 0,02-0,08 M. The result shows that the optimum voltage is 7,5 volts with the concentration of TEMPO 0,06 M. The result also confirms the role of TEMPO solutions in the cathode. In addition to that, the FTIR and SEM analysis to the sedimentation generated during the process also revealed the change of the anolyte and catholyte after charging process.Keywords: Organic; Flow Battery; TEMPO; FMN-Na; energy storage

A High Efficiency Iron-Chloride Redox Flow Battery for Large-Scale Energy Storage

2015 ◽  
Vol 163 (1) ◽  
pp. A5118-A5125 ◽  
Author(s):  
Aswin K. Manohar ◽  
Kyu Min Kim ◽  
Edward Plichta ◽  
Mary Hendrickson ◽  
Sabrina Rawlings ◽  
...  
Keyword(s):  
Energy Storage ◽  
Large Scale ◽  
High Efficiency ◽  
Iron Chloride ◽  
Redox Flow Battery ◽  
Flow Battery

Trust is Good, Control is Better: A Review on Monitoring and Characterization Techniques for Flow Battery Electrolytes

2021 ◽  
Author(s):  
Ulrich Sigmar Schubert ◽  
Oliver Nolte ◽  
Ivan Volodin ◽  
Christian Stolze ◽  
Martin D. Hager
Keyword(s):  
Energy Storage ◽  
Electricity Generation ◽  
Large Scale ◽  
Good Control ◽  
Renewable Electricity ◽  
Flow Battery ◽  
Large Share ◽  
Characterization Techniques ◽  
Renewable Electricity Generation ◽  
Storage Technologies

Flow Batteries (FBs) currently are one of the most promising large-scale energy storage technologies for energy grids with a large share of renewable electricity generation. Among the main technological challenges...

A highly-efficient composite polybenzimidazole membrane for vanadium redox flow battery

2021 ◽  
Vol 489 ◽  
pp. 229502
Author(s):  
Y.H. Wan ◽  
J. Sun ◽  
H.R. Jiang ◽  
X.Z. Fan ◽  
T.S. Zhao
Keyword(s):  
Vanadium Redox Flow Battery ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
Highly Efficient ◽  
Vanadium Redox

scholarly journals In-Situ Tools Used in Vanadium Redox Flow Battery Research—Review

Batteries ◽  
2021 ◽  
Vol 7 (3) ◽  
pp. 53
Author(s):  
Purna C. Ghimire ◽  
Arjun Bhattarai ◽  
Tuti M. Lim ◽  
Nyunt Wai ◽  
Maria Skyllas-Kazacos ◽  
...  
Keyword(s):  
Energy Storage ◽  
Cell Performance ◽  
Vanadium Redox Flow Battery ◽  
Ex Situ ◽  
Diagnostic Tools ◽  
Research Review ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
Vanadium Redox

Progress in renewable energy production has directed interest in advanced developments of energy storage systems. The all-vanadium redox flow battery (VRFB) is one of the attractive technologies for large scale energy storage due to its design versatility and scalability, longevity, good round-trip efficiencies, stable capacity and safety. Despite these advantages, the deployment of the vanadium battery has been limited due to vanadium and cell material costs, as well as supply issues. Improving stack power density can lower the cost per kW power output and therefore, intensive research and development is currently ongoing to improve cell performance by increasing electrode activity, reducing cell resistance, improving membrane selectivity and ionic conductivity, etc. In order to evaluate the cell performance arising from this intensive R&D, numerous physical, electrochemical and chemical techniques are employed, which are mostly carried out ex situ, particularly on cell characterizations. However, this approach is unable to provide in-depth insights into the changes within the cell during operation. Therefore, in situ diagnostic tools have been developed to acquire information relating to the design, operating parameters and cell materials during VRFB operation. This paper reviews in situ diagnostic tools used to realize an in-depth insight into the VRFBs. A systematic review of the previous research in the field is presented with the advantages and limitations of each technique being discussed, along with the recommendations to guide researchers to identify the most appropriate technique for specific investigations.

scholarly journals Improving Electrochemical Activity in a Semi-V-I Redox Flow Battery by Using a C–TiO2–Pd Composite Electrode

2019 ◽  
Vol 2019 ◽  
pp. 1-11 ◽  
Author(s):  
Tsung-Sheng Chen ◽  
Shu-Ling Huang ◽  
Mei-Ling Chen ◽  
Tz-Jiun Tsai ◽  
Yung-Sheng Lin
Keyword(s):  
Energy Storage ◽  
Sol Gel ◽  
Vanadium Redox Flow Battery ◽  
Operating Voltage ◽  
Composite Electrodes ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
Structural Morphology ◽  
X Ray ◽  
Combination Methods

This study developed composite electrodes used in a semi-vanadium/iodine redox flow battery (semi-V-I RFB) system and designed semi-V-I RFB stacks to provide performance comparable to that of an all-vanadium redox flow battery (all-VRFB) system. These electrodes were modified using the electroless plating method and sol-gel process. The basic characteristics of the composited electrodes, such as the surface structural morphology, metal crystal phases, and electrochemical properties, were verified through cyclic voltammetry, field emission-scanning electron microscopy, energy-dispersive X-ray spectrometry, and X-ray diffraction. The results show that the sintering C–TiO2–Pd electrode improved the electrocatalytic activity of the semi-V-I RFB system, thereby effectively increasing the energy storage ability of the system. The C–TiO2–Pd electrode was used as a negative electrode in a single semi-V-I RFB and exhibited excellent cyclic performance in a charge-discharge test of 50 cycles. The average values for coulomb efficiency, voltage efficiency, and energy efficiency were approximately 96.56%, 84.12%, and 81.23%, respectively. Moreover, the semi-V-I RFB stacks were designed using series or parallel combination methods that can effectively provide the desired operating voltage and linearly increase the power capacity. The amount of vanadium salt required to fabricate the semi-V-I RFB system can be reduced by combining large stack modules of the system. Therefore, this system not only reduced costs but also exhibited potential for applications in energy storage systems.

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