Improved Testing Strategies from Standards for New Growing Battery Applications in the Industrial and E-mobility Sectors

Abstract: In the current energy challenges, related to both climate change and the sudden rise in energy prices, batteries plays a key role in providing and storing energy. Before batteries are sent to market, the batteries are repeatedly subjected to different types of tests since it is crucial to verify that the performance and safety of these technologies are ensured in the different applications. This master’s thesis is dedicated to improving battery testing methodologies to address the growing industrial and e-mobility sectors. By identifying and tackling gaps in existing international standards, this research aims to enhance the link between battery testing and real-life operation of batteries, with the final objective of developing an adaptable testing framework for AVL MTC Motortestcenter AB, a leading powertrain systems company. The study investigates the factors driving battery testing, the impact of diverse applications on battery characteristics, and the need for refined testing strategies. The methodology includes a comprehensive background study of battery behavior, a review of battery performance parameters, and an analysis of prevailing testing procedures. The research results in the development of an algorithm for adaptable synthetic duty cycles, along with new testing procedures for capacity and cycle lifetime tests. The optimization of testing procedures enables AVL to take a prominent role in electrification and battery testing, offering more accurate and effective testing solutions. Ultimately, this contributes to a more sustainable industry by facilitating the secure and efficient use of battery technologies in emerging applications, particularly within the transport sector.