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News and Opinion

Coverage of flow batteries since September 30, 2020.

Alberta needs to supercharge its energy storage

"...While lithium batteries, similar to the ones in our phones, laptops, and increasingly EVs, are the bulk of contemporary energy storage installations, energy storage can take many other forms, such as pumped hydro, compressed air, thermal storage, flow batteries, and more..."


Lithium-ion batteries: Calgary researchers lead charge in hunt for safer technology

"...“My colleagues are working in the area of zinc-ion batteries, redux-flow batteries, sodium-ion batteries,” said Venkataraman Thangadurai from inside one of the university's battery labs..."


Todd Sayers: Why non-dilutive funding is revolutionizing B.C.s cleantech sector

"...The diversity of these recipients is remarkable. Takachar, for instance, is making biomass-based chemicals and biofuels economically feasible by prototyping a small-scale, portable biomass conversion unit on tractors and pick-up trucks to process raw biomass on-site in remote communities. Invinity is accelerating the adoption of renewable energy by delivering vanadium flow battery storage for electrical grids worldwide, while HTEC is building hydrogen fueling stations that can withstand extreme weather conditions..."


World's first commercial sand battery begins energy storage in Finland

"...Wind and solar power are intermittent, generating power when it's available rather than when it's needed, so the green energy transition will require huge amounts of energy storage. This could end up taking many forms, from conventional lithium-based "big battery" installations, to flow batteries, silicon phase-change batteries, molten salt batteries, iron-air batteries, gravity batteries, carbon dioxide expansion batteries, and other more unusual ideas like buoyancy batteries. Each has its own advantages and disadvantages in terms of efficiency, size, location, installation costs, operating costs, input and output power ratings, longevity and how long it can store the energy for..."


Symmetrical flow battery may strike right balance for grid-scale storage

"...As useful and impressive as current battery technology is, versions that store renewable energy for grid-scale use may look vastly different to those inside today's phones and electric vehicles. One promising technology is flow, or redox flow, batteries, which store energy in fluids inside tanks that could be upsized to satisfy energy demands as they increase. A new symmetrical design takes us a step closer to unlocking their potential, and leans on more environmentally friendly materials while it's at it..."


Hybrid membrane edges flow batteries toward grid-scale energy storage

"...Redox flow batteries hold great promise when it comes to grid-scale storage of renewable energy, because they can hold vast amounts of it in huge tanks at relatively low cost. Regulating the flow of energy in between these reservoirs sits a membrane, and scientists in China have come up with a new design for this key component that solves some shortcomings and takes the technology closer to realizing its potential. Massive lithium-ion batteries like the one built by Tesla in South Australia are one way to store renewable energy, but these cost tens of millions of dollars to put together..."


Newly developed ion-conducting membrane improves performance of alkaline-zinc iron flow battery

"...Alkaline zinc-iron flow battery (AZIFB) is well suitable for stationary energy storage applications due to its advantages of high open-cell voltage, low cost, and environmental friendliness. However, it surfers from zinc dendrite/accumulation and relatively low operation current density..."


Candle compound brings high density to grid-scale battery technology

"...As the world continues its shift towards renewable forms of energy like wind and solar, scientists see devices known as redox flow batteries as part of the solution to our storage needs. There is still come work to do in bringing current designs up to speed in terms of both performance and sustainability, but a new approach by scientists from the US Department of Energy tackles the problem on both these fronts by drawing on a compound commonly found in candles, which boosts energy density and lifespan compared to current designs. Redox flow batteries are considered a good candidate for storing intermittent forms of energy like wind and solar, because unlike lithium-ion batteries that store energy in electrode materials, they store this energy in liquid electrolytes inside huge external tanks..."


New material for catholytes and anolytes in organic redox flow batteries

"...Energy storage is a crucial component of a greener energy system of the future based on renewable sources; batteries have to be complemented with wind and solar farms and have to be scalable, safe, and flexible in their design and lifetime. Redox flow batteries (RFBs) are all those things, yet one major barrier to commercialization has been their low specific capacity. So, a lot of research effort is focused on developing better battery components to overcome this hurdle..."


Highly efficient grid-scale electricity storage at fifth of cost

"...Wind and solar power are increasingly popular sources for renewable energy. Unfortunately, intermittency issues keep them from connecting widely to the National grid. One potential solution to this problem involves in the deployment of long-duration battery technology, such as the redox flow battery..."


LiU researchers first to develop an organic battery

"...Researchers at the Laboratory of Organic Electronics, Linköping University, have for the first time demonstrated an organic battery. It is of a type known as a "redox flow battery", with a large capacity that can be used to store energy from wind turbines and solar cells, and as a power bank for cars..."


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Informative Video

Discussions, Documentaries, and Investigative Reports about flow batteries.

We need to talk about ANTARCTICA...AGAIN!!

"...Casado et al - The quandary of detecting the signature of climate change in Antarctica (Abstract paragraph only - full paper is also behind a paywall) ..."


Why Salt Water may be the Future of Batteries

"...Lithium and vanadium aren't limitless, so what about regular, run-of-the-mill salt? Redox flow batteries, or RFBs, can exploit the abundance of elements like sodium and iron..."


The Breakthrough Battery That The US Gave Away to China

"...In preliminary tests, vanadium redox flow batteries can be manufactured with longer lasting lives, be made more scalable, and are easier to recycle than other battery technologies..."


Academic Research

Recent peer-reviewed papers about flow batteries relevant to the latest news.

Energy storage techniques, applications, and recent trends: A sustainable solution for power storage

"...The utilization of a Vanadium Redox Flow Battery in hybrid propulsion systems for marine applications, as well as the creation of a high energy density portable/mobile hydrogen energy storage system with an electrolyzer, a metal hydride, and a fuel cell are both covered in detail with a case study..."


Model Predictive Controller-Based Voltage and Frequency Regulation in Renewable Energy Integrated Power System Coordinated with

"...Additionally, the authors have incorporated various dynamic energy storage devices like virtual inertia and redox flow battery (VI-RFB) in coordination with the MPC-HHO controller..."


Graphene/Nafion ink-impregnated graphite felt for both positive and negative sides of enhanced vanadium redox flow battery

"...The cycling stability of the modified electrodes has improved the voltage and energy efficiency of the battery containing them by 3% compared to the bare sample..."


Production planning under RTP, TOU and PPA considering a redox flow battery storage system

"...Here, we additionally consider a real-world redox flow battery storage system that may be the system of the future, which is also new to the literature on lot-sizing and scheduling..."


Multiscale Modeling Examples: New Polyelectrolyte Nanocomposite Membranes for Perspective Fuel Cells and Flow Batteries

"...Renewable energy production from fuel cells and energy storage in flow batteries are becoming increasingly important in the modern energy transition..."


A novel approach towards evaluation of joint technology performances of battery energy storage system in a fuzzy environment

"...In the case study, 5 different BESSs (Lead-acid, Lithium-ion, Vanadium redox flow battery, Sodium nickel chloride, Sodium-sulfur) alternatives have been evaluated with the joint technological criteria of these alternatives..."


An efficient barrier toward vanadium crossover in redox flow batteries: The bilayer [Nafion/(WO3)x] hybrid inorganic-organic mem

"...The correlation between the asymmetrical nature and the performance of the hybrid IEMs is studied in a single-cell vanadium redox flow battery (VRFB)..."


High-efficient multifunctional electrochemical membrane for lithium polysulfide redox flow batteries

"...Redox flow batteries (RFBs) based on lithium polysulfide (Li-PS) chemistry present great opportunities for large-scale energy storage and electric vehicles because of their use of abundant raw materials and their higher energy density compared with traditional flow batteries..."


A LiFePO4 Based Semi-solid Lithium Slurry Battery for Energy Storage and a Preliminary Assessment of Its Fire Safety

"...It combines the advantages of traditional lithium-ion battery with high energy density and the flexibility and expandability of liquid flow battery, and has unique application advantages in the field of energy storage..."


A Cascade Fractional Type-II Fuzzy Control Approach for Enhancing Frequency Stability in a Smart Grid System with Diverse Energ

"...Hence, this paper presents a novel quasi-opposition arithmetic optimization algorithm (QOAOA) optimized cascade interval type-II fuzzy proportional?integral?derivative (IT2FPID)-fractional order PI controller with DR and HESS of super-capacitor and redox flow battery (RFB) for suppressing the variations of frequency and tie-line power in a two-area restructure smart grid system, where the proficiency of the new optimization algorithm (QOAOA) is confirmed by relating its figure of demerit with other present algorithms..."