Speaker abstracts for the Danish Battery Symposium 2025 at Aalborg University on the 7th of October 2025.
Reza Younesi, Department of Chemistry – Ångström Laboratory, Uppsala University: Understanding ageing in sodium-ion batteries
Abstract: We have recently shown that sodium bis(oxalate)borate (NaBOB), when dissolved in alkyl phosphate-based solvents such as triethyl phosphate (TEP) or trimethyl phosphate (TMP), forms promising fluorine-free and non-flammable electrolyte solutions. These formulations not only enhance sustainability but potentially safety of batteries. NaBOB is soluble in TEP up to around 0.7 molal, which results in an electrolyte solution with an ionic conductivity around 5 mS.cm−1 at room temperature. The solubility of NaBOB in TEP can be increased to boost ionic conductivity, while maintaining the non-flammability of electrolyte solution and achieving promising electrochemical performance in full-cell sodium-ion batteries. We have investigated the ageing of various non-flammable electrolyte solutions in sodium-ion batteries to elucidate how different factors influence long-term cycling stability.
Remus Teodorescu, Professor, AAU Energy: Smart Battery Project – Multiphysics Constrained Neural Networks for Battery Modelling Acceleration
Abstract: Recently, a new concept Physical Informed Neural Networks (PINNs) has demonstrated the capabilities of Neural Networks (NNs) to learn the constraints of the physical models (PDEs) and exhibit improved generalization and scalability than deep NNs. This allows the development of low-resolution surrogate models that can rich several orders of acceleration and thus make possible to use them in real-time controllers of electrochemical devices, like Battery Management System (BMS).
The presentation will introduce PINN concept and show recent results of temperature spatial-distribution and electrodes concentration of lithium-ion batteries with a discussion on possible BMS implementation in order to improve the safety and performance of future battery systems
Maciej Swierczynski, Project Manager and Senior Researcher, Xolta: Energy Storage Economics in Denmark: BESS Revenue in 2025
Abstract: This presentation explores the evolving business case for commercial Battery Energy Storage Systems (BESS) in the Danish energy market. As the grid transitions toward higher shares of renewable energy, BESS plays a critical role in enabling flexibility, resilience, and profitability. This presentation will provide a comprehensive overview of the key revenue streams available to commercial energy storage operators in 2025, including energy time-shifting, backup power, ancillary services, peak shaving, and contributions to decarbonisation goals. It will also highlight the latest market trends, regulatory frameworks, and project economics relevant to Denmark, offering stakeholders a clear roadmap for capturing value in an increasingly dynamic energy landscape.
Martin Zacho, Senior Principal Technical Expert, Schneider Electric: Running a large AI-load from the view of the UPS and its Battery
Abstract: Traditional the 3ph UPS application have been a use case defined by very few cycles and degradation dominated by calendar degradation. With the deployment of full data centers dedicated to constructing large language models, this use case may change to a much more demanding task for the energy storage connected to the UPS. We will briefly describe the present use case and see how the future may alter that.
Thomas Bergan, COO, Beyonder: Capital-light battery production: Beyonder’s approach.
Abstract: Beyonder’s approach to become a significant battery supplier is capital light – first developing a second-to-none proprietary technology, seeking and utilizing surplus Asian manufacturing capacity, before taking steps towards European capabilities.
Paw Juul, CTO, Lithium Harvest: From Water to Value
Abstract: From idea at the kitchen table to industrial scale process technology. This presentation will cover several aspects of being a startup in a new booming business market. For example: How to go from discovering an opportunity in a brand new market to a leading company and how to develop technology in a fast shifting market. The volatility of the lithium market is very high and dominated by China. In the past three years the lithium price has gone from record high to very low which is causing massive effects on the market.
Kasper Torpe, CEO, Lithium Optima: How to differentiate in an increasingly competitive Battery Management market?
Abstract: Lithium Optima is a BMS company that specializes in industrial high performance applications. The company uses AI-based algorithms and designs compliant with the ISO13849 standard. Lithium Optima reports at least 15% improved capacity utilization in LFP batteries that are not regularly fully charged. Its algorithms are implemented in simple, cost-efficient BMS hardware designed for use in Industrial applications and the competitive Scooter and motorcycle markets in India and South East Asia.