Register here: https://ieee.webex.com/weblink/register/r51687635e96c0c109fb5deaba908183e
Abstract: Energy storage systems play a crucial role in the technological advancement of mobile and stationary energy applications. High performance is required in terms of efficiency, reliability, charging/discharging time, compactness, and weight. Each storage technology exhibits unique features making it suitable for specific applications and markets. Among them, lithium-ion batteries and supercapacitors stand out as dominant technologies, offering complementary characteristics in terms of energy and power density. This tutorial provides a comprehensive overview of the operating principles, electrical modeling, and characterization techniques of electrochemical energy storage systems, focusing on rechargeable batteries and supercapacitors used in industrial and building energy applications. Theoretical foundations are coupled with practical examples and comparative analysis to guide participants in understanding, modeling, and characterizing these technologies for real-world use.
Tutorial Objectives: This tutorial aims to explain the physical and electrochemical principles governing energy storage and conversion in batteries and supercapacitors, present equivalent electrical circuit models and their relevance for simulation and control design, discuss key characterization methods for estimating capacitance, internal resistance, and state of charge (SOC), compare technologies in terms of performance metrics such as energy/power density, cycle life, and aging, and highlight integration aspects of hybrid storage systems in smart grids, renewable energy systems, as well as electrified transportation.
Outline
Fundamentals of Electrochemical Energy Storage (Duration: 30 minutes, Time: 0:00 – 00:30)
- Principles of energy storage and conversion
- Operating mechanisms of batteries and supercapacitors
- Key performance metrics (energy/power density, efficiency, lifetime)
- Overview of main technologies and applications
Equivalent Electrical Modeling (Duration: 30 minutes, Time: 0:30 – 01:00)
- Introduction to electrical equivalent circuit models
- Common structures: single RC, multi-branch RC
- Use of models for system-level simulation
5-minute break
- Experimental Characterization and Parameter Estimation (Duration: 50 minutes, Time: 01:05 – 01:55)
- Electrochemical impedance spectroscopy (EIS)
- Charge/discharge tests and pulse methods
- Estimation of internal resistance, capacitance, and SOC
- Parameter identification and model fitting
- Practical examples and data interpretation
5-minute break
Comparative Analysis and Applications (Duration: 30 minutes, Time: 02:00 – 02:30)
- Comparative study: batteries vs. supercapacitors
- Hybrid energy storage systems (HESS)
- Integration into smart grids and electric mobility
- Industrial trends and future challenges
Questions & wrap-up (Duration: 30 minutes, Time: 02:30 – 03:00)
Learning outcomes
After completion of the tutorials, participants will be able to:
- Understand the operating principles of batteries and supercapacitors.
- Develop and use equivalent electrical circuit models for analysis and simulation.
- Apply key experimental techniques for system characterization.
- Compare technologies based on performance and lifetime criteria.
- Assess the suitability of different storage solutions for industrial applications.
About the Instructor
Dr SALHI Issam
Associate Professor, University of Technology of Belfort-Montbéliard, Belfort, France
Bio: Issam SALHI received the master’s degree in control system engineering, and the PhD degree in electrical engineering in 2006 and 2010 respectively, both from Cadi Ayyad University (Marrakesh, Morocco). In 2010, he has become an associate professor at the University Cadi Ayyad and since September 2021 he is an associate professor at the University of Technology of Belfort-Montbéliard and a member of CNRS FEMTO-ST institute in France. His main research topics include fuel cells for transportation, green hydrogen production, modeling and control of nonlinear systems (renewable energy & storage systems) and DC/DC converters design, analysis, and control (real‐time simulation and Digital Twin technology). He has published over 41 journal papers and 57 conference papers.