Low‐Cost Titanium–Bromine Flow Battery with Ultrahigh Cycle Stability for Grid‐Scale Energy Storage

Li, Xianjin; Xie, Chao-Ming; Li, Tianyu; Zhang, Yunhe

doi:10.1002/adma.202005036

Cited by 41 publications

(18 citation statements)

References 39 publications

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“…This rule is consistent with our previous report. [17] The content of polybromides at the different SOCs was measured by UV-visible spectroscopy. The results indicated that the polybromides content in aqueous phase from 10% to 70% SOC was nearly the same with same complexing agent (Figure S10, Supporting Information).…”

Section: Resultsmentioning

confidence: 99%

A Complexing Agent to Enable a Wide‐Temperature Range Bromine‐Based Flow Battery for Stationary Energy Storage

et al. 2021

Adv Funct Materials

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Bromine-based flow batteries (Br-FBs) are considered one of the most promising energy storage systems due to their features of high energy density and low cost. However, they generally suffer from uncontrolled diffusion of corrosive bromine particularly at high temperatures. That is because the interaction between polybromide anions and the commonly used complexing agent (N-methyl-N-ethyl-pyrrolidinium bromide [MEP]) decreases with increasing temperatures, which causes serious self-discharge and capacity fade. Herein, a novel bromine complexing agent, 1-ethyl-2-methylpyridinium bromide (BCA), is introduced in Br-FBs to solve the above problems. It is proven that BCA can combine with polybromide anions very well even at a high temperature of 60 °C. Moreover, the BCA contributes to decreasing the electrochemical polarization of Br − /Br 2 couple, which in turn improves their power density. As a result, a zinc-bromine flow battery with BCA as the complexing agent can achieve a high energy efficiency of 84% at 40 mA cm −2 , even at high temperature of 60 °C and it can stably run for more than 400 cycles without obvious performance decay. This paper provides an effective complexing agent to enable a wide temperature range Br-FB.

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Section: Resultsmentioning

confidence: 99%

A Complexing Agent to Enable a Wide‐Temperature Range Bromine‐Based Flow Battery for Stationary Energy Storage

et al. 2021

Adv Funct Materials

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“…During the discharge process, the reverse electrode reactions occur. The current Br-FB systems include ZBFB, HBFB, PBFB, VBFB, QBFB, LBFB, TBFB, and TiBFB, upon which their redox reactions during the charge-discharge process are as shown in Table 2 [7,[28][29][30][31][32][33]:…”

Section: Overview Of Br-fbsmentioning

confidence: 99%

“…The traditional Br-FBs include zinc-bromine flow battery (ZBFB), hydrogenbromine flow battery (HBFB), sodium polysulfide-bromine flow battery (PBFB), and vanadium-bromine flow battery (VBFB). In recent years, many novel Br-FB systems have also been proposed, such as quinone-bromine flow battery (QBFB), lithium-bromine flow battery (LBFB), tin-bromine flow battery (TBFB), and titanium-bromine flow battery (TiBFB) [6,7].…”

Section: Introductionmentioning

confidence: 99%

Progress and Perspective of the Cathode Materials towards Bromine-Based Flow Batteries

et al. 2022

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Bromine-based flow batteries (Br-FBs) have been one of the most promising energy storage technologies with attracting advantages of low price, wide potential window, and long cycle life, such as zinc-bromine flow battery, hydrogen-bromine flow battery, and sodium polysulfide-bromine flow battery. The research and development of aqueous Br-FBs are very fast and many achievements have been realized. However, Br-FBs suffer from the sluggish kinetics of Br2/Br- redox couple and serious self-discharge caused by the diffusion of bromine, which hinder the further commercialization and industrialization of the aqueous Br-FBs. A series of mitigation strategies have been developed to figure out these challenges, especially the modifications on electrode materials. Electrode, one of the critical components in a Br-FB, provides the reactions sites for redox couples, upon which its properties exert a significant effect on the performance of Br-FBs. Up to now, extensive research has been carried out on electrode modifications to solve the aforementioned notorious issues of Br-FBs, including surface treatment and surface modification. In this review, various electrode materials and relevant modification approaches used for Br-FBs are overviewed and summarized. Moreover, the relevant mechanisms are illustrated deeply, providing comprehensive and available instruction to pursue and develop high-performance cathodes for Br-FBs with high power density and long lifespan.

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“…Electro-active materials are used in flow batteries as two redox couple solutions. 112 External tanks hold redox couple solutions, then pumped through electrochemical cells. Furthermore, the exchange membrane aids in the separation of solutions to avoid mixing.…”

Section: Flow Batterymentioning

confidence: 99%

“…Electro‐active materials are used in flow batteries as two redox couple solutions 112 . External tanks hold redox couple solutions, then pumped through electrochemical cells.…”

Section: Energy Storage Technologiesmentioning

confidence: 99%

A comprehensive state‐of‐the‐art review of electrochemical battery storage systems for power grids

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et al. 2022

Intl J of Energy Research

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Summary As the world's population and living standards rise, energy suppliers will face increased electrical energy needs. Furthermore, the European Commission has established a goal to reduce fossil fuel use and greenhouse gas emissions in accordance with the Kyoto and Paris Protocols. As a result, governments are more likely to integrate renewable energy into their electricity grids. However, since renewable energy resources are intermittent, power grid systems confront considerable hurdles. By overcoming the intermittency of renewable energy resources, battery storage systems are one way to optimize load and demand. Many studies show that the stored energy can be used in high demand. This may reduce the cost of production in the long run. Energy storage systems can also provide voltage and frequency regulation to power systems when connected to the transmission and/or distribution lines. The application and benefits of battery storage devices in electricity grids are discussed in this study. The pros and disadvantages of various electrochemical batteries, including their structure, energy capacity, and application areas, are compared and summarized and their benefits and drawbacks are included. Finally, the research demonstrates how electrochemical battery technologies and power grids have collaborated.

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Low‐Cost Titanium–Bromine Flow Battery with Ultrahigh Cycle Stability for Grid‐Scale Energy Storage

Cited by 41 publications

References 39 publications

A Complexing Agent to Enable a Wide‐Temperature Range Bromine‐Based Flow Battery for Stationary Energy Storage

A Complexing Agent to Enable a Wide‐Temperature Range Bromine‐Based Flow Battery for Stationary Energy Storage

Progress and Perspective of the Cathode Materials towards Bromine-Based Flow Batteries

A comprehensive state‐of‐the‐art review of electrochemical battery storage systems for power grids

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