Internship: modelling of an acid-base flow battery for grid integration models

Website Aqua Battery

Who are we and what do we do?

We are AquaBattery: a team of highly motivated engineers interested in water technology.
We have developed a battery that can store electricity using only water and table salt.
Renewable energy technologies, such as wind and solar energy, are increasingly deployed.
However, these energy sources are intermittent, meaning at the time of electricity supply
there may be no demand. So, the excess energy is lost. Furthermore, when the supply level
is too high, electrical grids become unstable which could lead to severe damages. Our
Acid/base battery can help solve these problems. The AquaBattery is a sustainable battery
that can be applied to a range of different stationary applications, such as households,
farms, microgrids, and medium/ large industries with renewable energy sources.

Who are we looking for?

You are a student at a Dutch or non-Dutch university pursuing an HBO, BSc, or MSc (or
equivalent) degree in electrical, energy or mechanical engineering. You have followed
courses on, and have a good understanding of, the electricity grid and its associated
machinery that supply and demand electricity. You have hands-on experience with python,
literature review and technical report writing.

You will be working with a team of researchers & professionals. You will have the
opportunity to learn everything about the AquaBattery and obtain hands-on experience in
the technical/applied side of the company. You can expect excellent supervision and

What do we expect?

AquaBattery is participating PowerizeD: a project by a large consortium of 65 companies
backed by the European union. The project is aimed at innovation for the electrification of
society. We participate in the subproject “Flow battery power electronics” alongside other
partners. These partners will develop a power electronics system (bidirectional converter)
that is tailor-made for flow batteries, and AquaBattery will provide the demonstrator
battery for these power electronics. To properly start development, our partners need to
have a clear understanding of the electrical behaviour of our membrane stacks by means of
a model. Our partners will be able to use the model as a rudimentary stand-in during the
first phases of development. You will work with us and our partners to take inventory of all
parties’ needs and requirements, and then set up the model according to these

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