Resources
Filter by type:
2024
Best Practices Book
- 26 Mar 2024The best practices of the STARDUST project have been compiled into a handbook to help other cities and their stakeholders to learn from the experience of the project’s six cities in as many countries. After an overview of the project, the best practice book presents some of the smart city measures developed, tested and applied in the so-called lighthouse cities. It then features a section on replicability in which the follower cities look at the lessons they’ve learned in adapting the measures to their own contexts. A final section deals with innovative smart business models for use in the smart city context.
Download PDF (4.73 MB)Integrated Lithium-ion battery model and experimental validation of a second-life prototype
Paper - 17 Mar 2024A battery model predicts the battery performance, which can be a useful tool for optimizing battery design and preventing unsafe operation. This becomes especially significant in second-life batteries where the cells have already endured degradation and predicting the lifetime becomes challenging. The assessment of physical phenomena is often performed individually, but the overall battery behavior depends on their interaction. For this purpose, an integrated battery model is developed. Equivalent electric circuits are interconnected to represent the electrochemical reactions, thermodynamic phenomena, and heat transfer mechanisms of the battery. To consider cell degradation, calendar, and cycling aging were represented using a semi-empirical model. A battery management system is included to oversee and remain within the safe limits of battery voltage, temperature, and current.
Visit linkOnset of Irreversible Reactions in Overcharging Lithium-Ion Cells: an Experimental and Modeling Approach
Paper - 17 Mar 2024This contribution presents an experimental study of this onset reaction measured in pouch Li-ion cells under various conditions of charge current and temperature. It also proposes a lumped-parameter thermal model for the cell, which allows a detailed characterization of this exothermic reaction. The results achieved in this contribution can be a key tool to prevent overcharge accidents that may arise due to malfunctioning of the battery charger or battery management system.
Visit linkTemperature Indicators and Overtemperature Detection in Lithium-Ion Batteries based on Electrochemical Impedance Spectroscopy
Paper - 16 Mar 2024Lithium-ion batteries are the leading technology for energy storage systems due to their attractive advantages. However, the safety of lithium-ion batteries is a major concern, as their operating conditions are limited in terms of temperature, voltage and state of charge. Therefore, it is important to monitor the conditions of lithium-ion batteries to guarantee safe operation. To this end, in the present work, we analyze electrochemical impedance spectroscopy (EIS) as a tool to estimate the temperature of batteries. Overtemperature abuse tests from 25 °C to 140 °C are performed at various states of charge, and EIS measurements are obtained during the tests.
Visit link
