Zur frage der speicherung von elektrischer energie in flüssigkeiten

Kangro, Walther; Pieper, Henning

doi:10.1016/0013-4686(62)80032-2

Cited by 40 publications

(37 citation statements)

References 15 publications

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“…[144][145][146] Thef ormation of af ilm on the platinum electrodes,s low VO 2 + /VO 2+ reactions,i rreversible V 3+ /V 2+ reactions at carbon felt electrodes,a nd high costs resulted in further research in the frame of the NASA redoxflow batteries project being ruled out. [9] However,S um et al were later able to show that the rate and reversibility of the relevant redox reactions are highly dependent on the pretreatment of the electrodes,e specially the oxidation state of the electrode surface, [147,148] which means the reactions can proceed reversibly or irreversibly. [149] Anode :…”

Section: à2mentioning

confidence: 99%

“…[8,9] Thes ame electrolyte compositions were used for both half-cells.A nR FB based on 1m TiCl 4 ,1 m FeCl 2 ,a nd 1.5 m HCl achieved up to 55 %e nergy efficiency at low current densities.A nR FB based on 1m Ti(SO 4 ) 2 ,1m FeSO 4 ,and 0.75 m H 2 SO 4 achieved 50 %e nergy efficiency. In the 1970s,1 m solutions of metal ions were used at NASA in 0.5-6 m HCl.…”

Section: +mentioning

confidence: 99%

“…Kangro and Pieper concluded in 1962 that aT i/Fea ccumulator of this sort can be used for the storage of wind energy under ah igh storage/ power relationship in an economically competitive way compared to lead-and nickel-iron batteries. [9] During the 1970s,w ith the background of the first oil crisis,t he National Aeronautic and Aerospace Administration in America (NASA) was active in the development of cost-effective electrochemical energy storage for storing renewable energies.T haller et al [115,116] examined various redox couples for their suitability for storing energy.T heir focus was particularly on cost-effective materials.T his finally resulted in the concept of redox-flow batteries with the redox couples Cr 2+ /Cr 3+ and Fe…”

Section: Introductionmentioning

confidence: 99%

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The Chemistry of Redox‐Flow Batteries

et al. 2015

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The development of various redox-flow batteries for the storage of fluctuating renewable energy has intensified in recent years because of their peculiar ability to be scaled separately in terms of energy and power, and therefore potentially to reduce the costs of energy storage. This has resulted in a considerable increase in the number of publications on redox-flow batteries. This was a motivation to present a comprehensive and critical overview of the features of this type of batteries, focusing mainly on the chemistry of electrolytes and introducing a thorough systematic classification to reveal their potential for future development.

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Section: à2mentioning

confidence: 99%

Section: +mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The Chemistry of Redox‐Flow Batteries

et al. 2015

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“…80 mL/min. A commercial electrolyte was used (Treibacher Industrie AG, Austria) which was a mixture of 0.4 mol/L V 2 (SO 4 ) 3 …”

Section: Methodsmentioning

confidence: 99%

Aging Studies of Vanadium Redox Flow Batteries

Noack¹,

Vorhauser²,

Pinkwart³

et al. 2011

ECS Trans.

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A simple equivalent circuit based on a modified randles circuit has been developed and applied to assign different chemical and physical effects to a vanadium redox flow battery (VRFB) and the materials such as electrode, membrane and current collector. After that the test cell has been studied at different failure modes by electrochemical impedance spectroscopy. Some of the studied failure modes were corrosion of the current collectors due to electro-migration of sulphuric acid through graphite electrodes, hydrogen and oxygen evolution at higher voltages and a cracked membrane. The results show the possibility for a model based diagnostic of a battery system.

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“…Charge and discharge were carried out by the battery test system (Celltest 1470E, Solartron Analytical, USA). A commercial electrolyte was used to measure the VRFB (Treibacher Industrie AG, Austria) which was a mixture of 0.4 mol/L V 2 (SO 4 ) 3 …”

Section: Methodsmentioning

confidence: 99%

A Comparison of Materials and Treatment of Materials for Vanadium Redox Flow Battery

Noack

Tübke

2010

ECS Trans.

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Because of their unique properties redox flow batteries are promising candidates to meet the increasing demand for energy storage solutions resulting from the increasing use of fluctuating renewable energy sources. Because of the relatively high cost of the energy converter, in particular the electrode materials and the ion conducting membrane, research to improve energy efficiency and power density has been carried out. To compensate NAFION®, the anion-conducting membrane FAP was investigated, which can achieve the same performance as NAFION® but is porous. The performance of graphite felts shows a clear dependence on the type of thermal hydrophilisation. Cells using natural graphite as an electrode material have a lower internal resistance and higher reactivity than those with graphite composite electrodes.

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Zur frage der speicherung von elektrischer energie in flüssigkeiten

Cited by 40 publications

References 15 publications

The Chemistry of Redox‐Flow Batteries

The Chemistry of Redox‐Flow Batteries

Aging Studies of Vanadium Redox Flow Batteries

A Comparison of Materials and Treatment of Materials for Vanadium Redox Flow Battery

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