07/19

Performance Improvements and Cost Considerations of the Vanadium Redox Flow Battery

Our valued member Maria Skyllas-Kazacos has published an article about cost considerations and performance improvements of vanadium redox flow batteries. Maria gives an overview of the influences of materials such as electrodes, membrane and electrolyte on the levelised cost of energy and how improvements can be made.

Performance Improvements and Cost Considerations of the Vanadium Redox Flow Battery.
Maria Skyllas-Kazacos, ECS Transactions 2019, 89, 29-45

08/19
08/19

ICESI 1-4 March 2020 Sydney

Members of CENELEST are co-organising the 2020 Meeting of the International Coalition for Energy Storage and Innovation (ICESI 2020) in Sydney.

The International Coalition for Energy Storage and Innovation (ICESI) is a new international professional organization focusing on the science and technology challenges for grid scale energy and renewable energy integration.

https://www.icesi2020.com

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07/19

CENELEST visited the 10th International Flow Battery Forum in Lyon/France

Nicholas Gurieff gave a presentation on new concepts for alternative vanadium redox flow battery cell and stack designs. Initial studies showed that a tapered cell design provided slightly better performance than conventional rectangular cell designs. This new concept also allows the possibility for constructing toroidal stacks with potentially smaller space requirements. Jens Noack gave a presentation on current activities in the field of international standardization of redox flow batteries. This year the publication of three standards specifically developed for redox flow batteries is expected.

04/19

CENELEST attended the 2019 Smart Energy Conference and Exhibition

Several CENELEST members took part in this year's Smart Energy Conference and Exhibition in Sydney/Australia. In addition to presentations, numerous companies were represented as exhibitors at the two-day event. CENELEST participated as an exhibitor with its own booth. During the two days countless discussions were held and numerous new contacts from the international and national Australian sector of energy storage were established.

04/19

The effect of the counter ion for Vanadium Redox Flow Batteries

We have published an open access article about the effect of the counter ion in the electrolyte of Vanadium Redox Flow Batteries (VRFB). Sulphate and pure chloride based electrolytes have been compared regarding its electrochemical properties in half-cells and batteries. We show here that the usage of pure chloride based electrolyts results in lower performance and a reaction of V(V) with chlorine.

Vanadium Electrolyte for All-Vanadium Redox-Flow Batteries: The Effect of the Counter Ion
N. Roznyatovskaya, J. Noack, H. Mild, M. Fühl, P. Fischer, K. Pinkwart, J. Tübke, M. Skyllas-Kazacos, Batteries 2019, 5, 13 (OPEN ACCESS)

02/19

Vanadium Oxygen Fuel Cell utilising high concentration electrolyte

We published an open acces article about a Vanadium Oxygen Fuel Cell (VOFC) utilising up to 3.6 mol/L high concentration vanadium electrolyte. Compared to Vanadium Redox Flow Batteries, VOFCs allow much higher theoretical energy density by the replacement of the positive electrolyte with an oxygen (air) electrode. The replacement allows the usage of higher concentrated vanadium electrolytes which further increases the theoretical energy density. We present here a VOFC with 3.6 M vanadium solution, which has a theoretical maximum energy density of 146 Wh/L.

Vanadium Oxygen Fuel Cell Utilising High Concentration Electrolyte
M. Risbud, C. Menictas, M. Skyllas-Kazacos, J. Noack, Batteries 2019, 5(1), 24 (OPEN ACCESS)

11/18

Invited lecture by Chris at the autumn conference of the MRS

Two weeks ago Chris Menictas attended an invited lecture at this year's autumn conference of the Material Research Society in Boston/MA USA. In his lecture he reported on our scientific activities in the field of modelling and simulation as well as on experimental results of vanadium/air fuel cells with highly concentrated vanadium electrolytes, which potentially enable high energy densities to be achieved. He also talked about activities to reverse the reactions, i.e. the charging process in a separate cell.

07/18
07/18

CENELEST visited 9th IFBF

CENELEST attended the ninth International Flow Battery Forum (IFBF) in Lausanne/Switzerland this July. Chris had a lecture about CENELEST and scientific results of the cooperation which will be reported separately later on. Jens N. participated in the discussion on standards for vanadium flow battery electrolyte and presented the current state of developments in the field of international standardization in the IEC (International Electrotechnical Commission).

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07/18
07/18

Workshop with Anthony Price as external advisor for CENELEST

As part of the second CENELEST meeting in Pfinztal/Germany, a workshop with Anthony Price (Swanbarton, International Flow Battery Forum) as external consultant took place on the afternoon of July 6, 2018. The objective of this workshop was to further develop a research strategy to better meet current and future requirements in the field of stationary energy storage.

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07/18
07/18

2nd CENELEST Meeting in Pfinztal/Germany

On June 5 and June 6, 2018 the second CENELEST meeting took place at the Fraunhofer ICT in Pfinztal/Germany. As at our first meeting in Sydney/Australia, administrative discussions took place on the first day and presentations and discussions on the scientific content of the collaboration took place on the second day.

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06/18
06/18

Industry visit of 15 MW /60 MWh VRFB

In July 2018 we have made an industry visit to one of the largest vanadium flow batteries with 15 MW / 60 MWh. The Battery is owned by Hokkaido Electric Power Corp. near Chitose on Hokkaido Island in Japan and built by Sumitomo Corp. The purpose of the battery is to stabilize the grid with frequency regulation but also with peak shift.

06/18
06/18

Meeting of IEC TC21/TC105 JWG7 Flow Batteries

On October 12th and 13th CENELEST attended the meeting of IEC TC21/TC105 JWG7 on flow batteries in Sapporo/Japan. During two days of fruitful discussions we have worked on the finalisation of three different standards on flow batteries regarding safety, performance and general aspects.

06/18
06/18

CENELEST has published two papers in Journal of Energy Chemistry

We have published two papers in a coming special issue about Flow Batteries in the Journal of Energy Chemistry. The first paper is a review about additives for vandium flow batteries.https://www.sciencedirect.com/science/article/pii/S2095495617311270 The second is about the influence of electrochemical treatment of electrodes for vanadium flow batteries: https://www.sciencedirect.com/science/article/pii/S2095495617311269

03/18
03/18

Guide to our physical presence

Last week we inaugurated our pretty metal sign at the entrance to the Willis Annexe Building. Hopefully this will make it easier to find us personally.

12/17
12/17

Kick-Off Workshop "Research Strategy"

At the end of November 2017, CENELEST's first workshop on research strategy was held at the University of New South Wales. Participants from other UNSW departments such as Chemical Engineering (Prof. Jie Bao), Electrical Engineering (Prof. John Fletcher), Weather Forecast (Dr. Merlinde Kay) and Power Energy Systems (Dr. Mihai Ciobotaru) as well as Prof. Vassallo from Sustainable Energy Development at the University of Sydney were invited to the one-day meeting.

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