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Thesis - Advancements and Projections in Lithium-Ion Battery Energy Storage

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Company Description

We at Vattenfall have decided to make it possible to live fossil-free. To succeed, as one of Europe’s largest energy companies, we must first become completely fossil-free ourselves. But that is not enough. To contribute to a fossil-free society, we must do more than just focus on sustainable energy production.
We are convinced that if we are to enable a fossil-free life within a generation, we must look at the challenge from a broader perspective than merely producing energy in a sustainable way.
Join us on the journey toward a fossil-free life.
Power Climate Smarter Living – that’s our purpose. We´re on the lookout for talented students who want to help us on out journey towards a fossil-free life. By writing a thesis a thesis at Vattenfall, you will get a unique opportunity to contribute to our purpose. All we ask of you is to unleash your superpowers and share your energy with us.

Job Description

In the rapidly evolving energy sector, lithium-ion battery energy storage systems (BESS) are at the cutting edge of technology, driving towards more reliable and efficient energy storage solutions. This thesis will provide a detailed review of the current hardware components utilized in BESS and offer projections for technological advancements over the next five years. The focus will extend across critical elements including power conversion systems, battery containers, and battery management systems, providing valuable insights into the technological trajectory of lithium-ion BESS.
Scope of Research:
Review Current Technologies: Conduct a comprehensive overview of the current state of technologies used in li-ion BESS, covering key power conversion components such as switch gears, transformers, and inverters, as well as DC blocks including battery container designs, cell stacking methods from cell to rack, and their cooling systems.
Detailed Component Analysis: Explore the technical specifications, performance metrics, and integration challenges faced by each aforementioned component within the BESS, contributing to a holistic understanding of system functionalities.
Identify Technological Trends: Analyse ongoing technological improvements by interviewing manufacturers, focusing on enhancing performance, efficiency, durability, and cost-effectiveness of BESS components.
Forecast Future Developments: Provide predictions on advancements expected within the next five years, identifying potential breakthroughs and emerging innovations that may redefine industry standards.
Market and Regulatory Influence Review: Examine the impact of market forces and regulatory frameworks that shape the technological development of BESS. This review will identify the key drivers and constraints in the market, emphasizing how these factors could influence future technology trends and adoption.

Expected Outcomes:
This thesis will provide an in-depth analysis of current trends and future directions in lithium-ion BESS technologies. It will highlight critical areas of innovation and potential investment opportunities, providing strategic recommendations for industry stakeholders to capitalize on forthcoming technological shifts within the BESS sector.

Qualifications

We are looking for students who want to work towards a fossil-free life within a generation and who are soon to graduate from their academic studies. You are also someone who identifies with our principles: Active, Open, Positive, and Safety.
Engineering education
Master's thesis of 30 credits
English proficiency

Additional Information

Assignment start: Upon agreement, around January-February
Location: Solna
Application - a file with your CV as well as a copy of your transcripts.
The application deadline is December 1, 2024.
Contact person and supervisor at Vattenfall: Fredrik Persson, [email protected], +46 70 617 99 97.

We are convinced that heterogeneous teams can outperform homogeneous teams. But we can only unleash and utilize the power of diversity when everyone feels included. Read more about our important work on diversity and inclusion.
Want to know more about us? Visit www.vattenfall.se
Since Vattenfall is part of Sweden's critical infrastructure, many of our services are classified for security. This means that, if this position is security-classified, final candidates may be subject to a special security review in accordance with the Security Protection Act.
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Future Competing Battery-Chemistries Battery Energy Storage Systems

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Company Description
Vattenfall is one of Europe’s largest producers and retailers of electricity and heat. Our main markets are Sweden, Germany, the Netherlands, Denmark, and the UK. The Vattenfall Group has approximately 20,000 employees. We have been electrifying industries, powering homes and transforming life through innovation for more than 100 years. We now want to make fossil free living possible within one generation and we are driving the transition to a sustainable energy system.
Job Description
About the thesis
The electrification of wider society & industry is driving an extraordinary need for increased power generation primarily from intermittent sources. An increasing share of intermittent power generation in the energy system calls for large-scale energy storages. Batteries are one alternative frequently employed as energy storage system where Li-ion is the dominating technology. As the battery-industry grows and further potentials unravel, so does the business potential which in turn drives a technical development of bringing more chemistries to the table.
At Vattenfall R&D we are interested in learning more about the promising battery-chemistries who will be able to compete with existing technologies in large scale deployments within the next 5-10 years.
Qualifications
Scope: What to do
• Review literature on battery storage and summarize a fundamental overview of generally feasible chemistries
• Involve critical stakeholders in a dialogue to summarize the view of future potential chemistries being able to complement Li-ion as large-scale battery energy storage system.
• Identify the hurdles and problems that these stakeholders see (e.g., safety aspects, capital and operating costs, critical minerals, business risk profile) and define relevant decision criteria
• Identify 2-3 possible chemistries with a significant technology-readiness level increase during the next 5-10 years.
• Interview manufacturers, suppliers and/or system integrators that work with the chosen battery chemistries
• Develop system design specifications for each chemistry for a combination of use cases and at a site specified by Vattenfall.
• Compare the different alternative chemistries for this combination of use cases at the specified site with the standard Li-ion technology currently used, based on a number of specified criteria’s, among others investment as well as running cost, environmental as well as fire risks and life-time.
• Identify whether the selected technologies is a transition technology or a longer-term technology with potential for further improvements.
Additional Information

For more information - Adj. Prof. Magnus Berg , R&D Portfolio Manager +46 706 339 444, [email protected]

We welcome your application in English no later than December 11th 2022. We kindly request that you do not send applications by any means other than via our website.

At Vattenfall we are convinced that diversity contributes to build a more profitable and attractive company and we strive to be a good role model regarding diversity. Vattenfall works actively for all employees to have the same opportunities and rights regardless of gender, ethnicity, age, transgender identity or expression, religion or other belief, disability or sexual orientation. Click here for further information.

Since Vattenfall is a part of the Swedish critical infrastructure, many of our services are security classed. If this position is security classed the final candidates might be subjected to a security vetting process, according to the Swedish legislation.

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