Scientific Downloads 2018-09-18T17:01:29+00:00

High selectivity-conductivity reinforced perfluorosulfonic acid membranes for hydrogen-bromine flow batteries.

Yohanes Hugo1, 2, Wiebrand Kout1, Friso Sikkema1, Zandrie Borneman2, Kitty Nijmeijer2
1Elestor B.V., 6812 AR Arnhem, the Netherlands
2Membrane Materials and Processes, Eindhoven University of Technology, Department of Chemical Engineering and Chemistry, PO box 513, 5600 MB Eindhoven, The Netherlands

Introduction
Reinforced proton exchange membrane (PEM) were developed to increase the mechanical strength of thin membranes (≤30 µm) for PEM fuel cell applications. In hydrogen-bromine flow batteries (HBFBs), Br2 and Br crossover through the membrane may affect the lifetime of HBFBs as a result of dissolution or passivation of the platinum catalyst. One study suggested that the reinforcement reduces the bulk Br2 and Br transport and x-y (in-plane) swelling [1].

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The effect of cations on the proton transport of PFSA membranes used in hydrogen-bromine flow batteries: observations and mitigation solutions.

Natalia Mazur1*, Yohanes Antonius Hugo1,, Wiebrand Kout1, Friso Sikkema1, Ran Elazari2, Ronny Costi2
1 Elestor B.V., Arnhem 6812 AR, The Netherlands
2 ICL Industrial Products R&D, Beer Sheva, Israel
*natalia.mazur@elestor.nl

Introduction
In search for cheap, high capacity energy storage, hydrogen-bromine flow batteries (HBFBs) are emerging as strong contenders [1], however, the volatility of the electrolyte and the associated risks must be managed. Bromine complexing agents (BCAs) are used as additives to the electrolyte, which have the ability to capture Br-ions and Br2 thus decreasing the bromine vapour pressure [1]. The BCA-HBr-Br2 complex separates as a high density oily layer.

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The hydrogen-bromine flow battery for a large scale integration of variable renewable electricity: State-of-the-art review

Y.A. Hugo, W. Kout, G. Dalessi

Elestor B.V., Utrechtseweg 310-H40, 6812 AR Arnhem, The Netherlands

This article presents a state-of-the-art review of the hydrogen-bromine battery technology. The review aims to elaborate on the following topics: (1) the hydrogen-bromine flow battery, (2) the current status of technical developments on short-term and long-term cycling, and (3) the future direction for technology development.

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State-of-the-art membranes for hydrogen-bromine flow batteries: The mechanisms for proton and bromide-species transports

Yohanes Antonius Hugo1, Wiebrand Kout1, Kitty Nijmeijer2

1Elestor B.V., Arnhem 6812 AR, the Netherlands
2Membrane Science & Technology Group, Department of Chemical Engineering,
Eindhoven University of Technology, Eindhoven 5600 MB, the Netherlands

Introduction
In a hydrogen-bromine flow battery (FB), the membrane characteristics determine the intrinsic resistance and crossover rate of bromide species and water. The crossover issue (from the bromine side to the hydrogen side) affects the performance and lifetime of hydrogen-bromine FBs because the bromide species deactivate the platinum catalyst and the liquid floods the electrode, which makes it inaccessible for the hydrogen [1].

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