scholarly journals A zinc–iron redox-flow battery under $100 per kW h of system capital cost

2015 ◽  
Vol 8 (10) ◽  
pp. 2941-2945 ◽  
Author(s):  
Ke Gong ◽  
Xiaoya Ma ◽  
Kameron M. Conforti ◽  
Kevin J. Kuttler ◽  
Jonathan B. Grunewald ◽  
...  
Keyword(s):  
Low Cost ◽  
Capital Cost ◽  
Cell Performance ◽  
Redox Flow Battery ◽  
High Cell ◽  
Flow Battery ◽  
Iron Redox

A zinc–iron redox-flow battery is developed that uses low cost redox materials and delivers high cell performance, consequently achieving an unprecedentedly low system capital cost under $100 per kW h.

scholarly journals A low-cost sulfate-based all iron redox flow battery

2021 ◽  
pp. 230457
Author(s):  
Sicen Yu ◽  
Xiujun Yue ◽  
John Holoubek ◽  
Xing Xing ◽  
Eric Pan ◽  
...  
Keyword(s):  
Low Cost ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
Iron Redox

A low-cost SPEEK-K type membrane for neutral aqueous zinc-iron redox flow battery

2019 ◽  
Vol 358 ◽  
pp. 190-194 ◽  
Author(s):  
Shunli Chang ◽  
Jiaye Ye ◽  
Wei Zhou ◽  
Chun Wu ◽  
Mei Ding ◽  
...  
Keyword(s):  
Low Cost ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
Iron Redox

scholarly journals A Low-cost Sulfate-based All Iron Redox Flow Battery

2021 ◽  
Author(s):  
Sicen Yu ◽  
Xiujun Yue ◽  
John Holoubek ◽  
Xing Xing ◽  
Eric Pan ◽  
...  
Keyword(s):  
Low Cost ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
Iron Redox

scholarly journals An aqueous, polymer-based redox-flow battery using non-corrosive, safe, and low-cost materials

Nature ◽  
2016 ◽  
Vol 534 (7607) ◽  
pp. S9-S10 ◽  
Author(s):  
Tobias Janoschka ◽  
Norbert Martin ◽  
Udo Martin ◽  
Christian Friebe ◽  
Sabine Morgenstern ◽  
...  
Keyword(s):  
Low Cost ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
Aqueous Polymer

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.

Improving the redox flow battery performance of low-cost thin polyelectrolyte membranes by layer-by-Layer Surface assembly

2019 ◽  
Vol 413 ◽  
pp. 182-190 ◽  
Author(s):  
Saidatul Sophia Sha'rani ◽  
Ebrahim Abouzari-Lotf ◽  
Mohamed Mahmoud Nasef ◽  
Arshad Ahmad ◽  
Teo Ming Ting ◽  
...  
Keyword(s):  
Low Cost ◽  
Layer By Layer ◽  
Layer Surface ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
Polyelectrolyte Membranes ◽  
Surface Assembly

Preparation and characterization of SPES/PVA (double-layer) membrane for vanadium redox flow battery

2018 ◽  
Vol 31 (2) ◽  
pp. 148-153 ◽  
Author(s):  
Jili Xie ◽  
Guanlin Li ◽  
Wang Tan
Keyword(s):  
Double Layer ◽  
Layer Structure ◽  
Coulombic Efficiency ◽  
Cell Performance ◽  
Vanadium Redox Flow Battery ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
Layer Membrane ◽  
Vanadium Redox ◽  
Vanadium Ions

The double-layer membrane consisting of sulfonated poly(ether sulfone) (SPES) sub-layer and polyvinyl alcohol (PVA) sub-layer (denoted as SPES/PVA membrane) was prepared and employed as the separator for vanadium redox flow battery (VRB) system to evaluate the vanadium ions permeability and cell performance. The SPES/PVA membrane is a double-layer structure and exhibits dramatically lower vanadium ions permeability and better cell performance compared to the pristine SPES membrane, PVA membrane, and Nafion117 membrane. The vanadium ion permeability of SPES/PVA membrane is one order of magnitude lower than that of Nafion117 membrane. In further work, the single cell with SPES/PVA membrane showed significantly lower capacity loss, higher coulombic efficiency (>92.5%), and higher energy efficiency (>83.9%) than Nafion117 membrane. In the self-discharge test, SPES/PVA membrane showed 1.8 times longer duration in the open circuit decay than Nafion117 membrane. With all the good properties and low cost, this new kind of double-layer membrane is suggested to have excellent commercial prospects as an ion exchange membrane for VRB systems.

scholarly journals A Comprehensive Study on Hydroxyl Multiwalled Carbon Nanotubes Used as Catalysts for VO2+/VO2+ Reaction in Vanadium Redox Flow Battery

2019 ◽  
Vol 2019 ◽  
pp. 1-10
Author(s):  
Qiang Li ◽  
Anyu Bai ◽  
Zeqiang Qu ◽  
Tianyu Zhang ◽  
Jie Li ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
Cell Performance ◽  
Vanadium Redox Flow Battery ◽  
High Catalytic Activity ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
Multiwalled Carbon ◽  
Vanadium Redox ◽  
Comprehensive Study

A comprehensive study on the hydroxyl multiwalled carbon nanotubes (hydroxyl MWCNTs) as catalysts in a positive reaction was performed to improve the efficiency of the vanadium redox flow battery (VRFB). The physicochemical properties of the hydroxyl MWCNT-modified electrode were characterized by using a scanning electron microscope (SEM), conductivity measurement, Brunner–Emmet–Teller (BET) measurement, X-ray photoelectron spectroscopy (XPS) analysis, cyclic voltammetry (CV) tests, electrochemical impedance spectroscopy (EIS) analysis, and charge-discharge tests. The prepared composite electrode possesses a huge amount of oxygen-containing groups, high-specific surface area, high electrical conductivity, and high catalytic activity towards the VO2+/VO2+ reaction based on physicochemical characterization. The hydroxyl MWCNT-modified graphite felt (hydroxyl MWCNTs/GF) shows the best cell performance with the energy efficiency of 79.74% and remains in high stability after 50 cycles. The improved cell performance is probably ascribed to the increase in active sites, fast charge transfer, and mass transfer rate of the introduced hydroxyl MWCNTs.

scholarly journals GO-modified membranes for vanadium redox flow battery

2019 ◽  
Vol 90 ◽  
pp. 01004 ◽  
Author(s):  
Saidatul Sophia ◽  
Ebrahim Abouzari Lotf ◽  
Arshad Ahmad ◽  
Pooria Moozarm Nia ◽  
Roshafima Rasit Ali
Keyword(s):  
Low Cost ◽  
Vanadium Redox Flow Battery ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
The Stability ◽  
High Flexibility ◽  
Vanadium Redox ◽  
Vanadium Ion ◽  
Excellent Stability

Graphene oxide (GO) has attracted tremendous attention in membrane-based separation field as it can filter ions and molecules. Recently, GO-based materials have emerged as excellent modifiers for vanadium redox flow battery (VRFB) application. Its high mechanical and chemical stability, nearly frictionless surface, high flexibility, and low cost make GO-based materials as proper materials for the membranes in VRFB. In VRFB, a membrane acts as the key component to determine the performance. Therefore, employing low vanadium ion permeability with excellent stability membrane in vanadium electrolytes is important to ensure high battery performance. Herein, recent progress of GO-modified membranes for VRFB is briefly reviewed. This review begins with current membranes used for VRFB, followed by the challenges faced by the membranes. In addition, the transport mechanism of vanadium ion and the stability properties of GO-modified membranes are also discussed to enlighten the role of GO in the modified membranes.

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