The Need for Stationary Energy Storage

Price, Anthony

doi:10.1002/9783527832767.ch1

Cited by 2 publications

(3 citation statements)

References 11 publications

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“…Flow batteries (FBs) are one of the most promising electrochemical technologies for large-scale energy storage. FBs can offer hour-length storage and flexible, fast-response operation both in load leveling and frequency regulation modes . FBs store energy in aqueous solutions of redox couples, making them safer by resisting thermal runaway and fire, offering a modular design that favors scalability as well as decoupled power and capacity .…”

Section: Introductionmentioning

confidence: 99%

“…FBs can offer hour-length storage and flexible, fast-response operation both in load leveling and frequency regulation modes. 4 FBs store energy in aqueous solutions of redox couples, making them safer by resisting thermal runaway and fire, offering a modular design that favors scalability as well as decoupled power and capacity. 5 In particular, vanadium flow batteries (VFBs) have achieved commercial status and proven long lifetimes due to the use of vanadium species in both positive and negative electrolytes, which mitigates cross-contamination through the membrane.…”

Section: Introductionmentioning

confidence: 99%

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Comparison of the Influence of Oxygen Groups Introduced by Graphene Oxide on the Activity of Carbon Felt in Vanadium and Anthraquinone Flow Batteries

Molina-Serrano,

Luque-Centeno,

Sebastián

et al. 2024

ACS Appl. Energy Mater.

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An increasing number of studies focus on organic flow batteries (OFBs) as possible substitutes for the vanadium flow battery (VFB), featuring anthraquinone derivatives, such as anthraquinone-2,7-disulfonic acid (2,7-AQDS). VFBs have been postulated as a promising energy storage technology. However, the fluctuating cost of vanadium minerals and risky supply chains have hampered their implementation, while OFBs could be prepared from renewable raw materials. A critical component of flow batteries is the electrode material, which can determine the power density and energy efficiency. Yet, and in contrast to VFBs, studies on electrodes tailored for OFBs are scarce. Hence, in this work, we propose the modification of commercial carbon felts with reduced graphene oxide (rGO) and poly(ethylene glycol) for the 2,7-AQDS redox couple and to preliminarily assess its effects on the efficiency of a 2,7-AQDS/ferrocyanide flow battery. Results are compared to those of a VFB to evaluate if the benefits of the modification are transferable to OFBs. The modification of carbon felts with surface oxygen groups introduced by the presence of rGO enhanced both its hydrophilicity and surface area, favoring the catalytic activity toward VFB and OFB reactions. The results are promising, given the improved behavior of the modified electrodes. Parallels are established between the electrodes of both FB technologies.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comparison of the Influence of Oxygen Groups Introduced by Graphene Oxide on the Activity of Carbon Felt in Vanadium and Anthraquinone Flow Batteries

Molina-Serrano,

Luque-Centeno,

Sebastián

et al. 2024

ACS Appl. Energy Mater.

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“…Flow batteries are actively developing as electrical energy storage media to be used in power systems with distributed generation [1], as well as batteries in uninterruptible power supply (UPS) systems [2]. Nowadays, vanadium redox flow batteries (VRFB) are the most commercially mature technology [3], despite the fact that other types of flow batteries are the subject of widespread interest [4], for example, zinc-bromine flow batteries or organic flow batteries, which are already underway [5].…”

Section: Introductionmentioning

confidence: 99%

Study of 10 kW Vanadium Flow Battery Discharge Characteristics at Different Load Powers

Rashitov,

Voropay,

Tsepilov

et al. 2024

Batteries

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Vanadium redox flow batteries are promising energy storage devices and are already ahead of lead–acid batteries in terms of installed capacity in energy systems due to their long service life and possibility of recycling. One of the crucial tasks today is the development of models for assessing battery performance and its residual resource based on the battery’s present state. A promising method for estimating battery capacity is based on analyzing present voltage and current values under various load conditions. This paper analyzes the discharge characteristics of a 10 kW all-vanadium redox flow battery at fixed load powers from 6 to 12 kW. A linear dependence of operating voltage and initial discharge voltage on load power is established. It is also determined that the slope of the discharge curve linear section does not increase linearly in absolute value, and the Box–Lucas model can be used to describe it. Models for predicting current VRFB capacity based on different curve fitting functions are proposed. These models can be used to roughly estimate battery capacity at different load powers.

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The Need for Stationary Energy Storage

Cited by 2 publications

References 11 publications

Comparison of the Influence of Oxygen Groups Introduced by Graphene Oxide on the Activity of Carbon Felt in Vanadium and Anthraquinone Flow Batteries

Comparison of the Influence of Oxygen Groups Introduced by Graphene Oxide on the Activity of Carbon Felt in Vanadium and Anthraquinone Flow Batteries

Study of 10 kW Vanadium Flow Battery Discharge Characteristics at Different Load Powers

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