Dr Jorge Varela Barreras

• Electrochemical batteries, with focus on lead acid & Li-ion
• Energy storage systems and e-mobility
• Renewables, with focus on solar PV and wind power
• Battery thermal management
• Battery management systems
• HV battery pack design and testing
• Battery modelling
• Battery states estimation
• Derating, balancing and hybridization methods
• Battery and electric vehicle safety
• Electric vehicle and battery architectures

• Pioneering work in datasheet-based modelling of batteries

[1] J. V. Barreras, E. Schaltz, S. J. Andreasen, and T. Minko, “Datasheet-based modeling of Li-Ion batteries,” in 2012 IEEE Vehicle Power and Propulsion Conference, VPPC 2012, 2012, pp. 830–835.

• Invention of a new gen of battery balancing systems

[2] J. V. Barreras, C. Pinto, R. De Castro, E. Schaltz, S. J. Andreasen, and R. E. Araújo, “Multi-objective control of balancing systems for li-ion battery packs: A paradigm shift?” in 2014 IEEE Vehicle Power and Propulsion Conference (VPPC), 2014.
[3] R. De Castro, C. Pinto, J. Varela Barreras, R. E. Araujo, and D. A. Howey, “Smart and Hybrid Balancing System: Design, Modeling, and Experimental Demonstration,” IEEE Trans. Veh. Technol., vol. 68, no. 12, pp. 11449–11461, Dec. 2019.

• Novel real-time control methods for a new gen of balancing systems

[4] J. V. Barreras, R. de Castro, Y. Wan, T. Dragicevic, "A consensus-based distributed algorithm for multi-functional battery balancing," Energies, 14, 4279, 2021.
[5] R. de Castro, H. Pereira, R. E. Araujo, J. V. Barreras, "qTSL: a Multi-Layer Control Framework for Managing Capacity, Temperature, Stress and Losses in Hybrid Balancing Systems," IEEE Trans. on Control Systems Technology, 2021.

• New EV architecture with swappable packs

[6] J. V. Barreras et al., “Evaluation of a Novel BEV Concept Based on Fixed and Swappable Li-Ion Battery Packs,” IEEE Trans. Ind. Appl., vol. 52, no. 6, pp. 5073–5085, Nov. 2016.

• Pioneering works in BMS testing on hardware-in-the-loop

[7] J. V. Barreras et al., “An Advanced HIL Simulation Battery Model for Battery Management System Testing,” IEEE Trans. Ind. Appl., vol. 52, no. 6, pp. 5086–5099, Nov. 2016.
[8] J. V. Barreras et al., “Functional analysis of battery management systems using multi-cell HIL simulator,” in 2015 10th International Conference on Ecological Vehicles and Renewable Energies, EVER 2015, 2015.

• Pioneering work in Li-ion cell-tab design

[9] S. Li et al., “Optimal cell tab design and cooling strategy for cylindrical lithium-ion batteries,” J. Power Sources, Volume 492, 30 April 2021, 229594, April 2021.

• Novel degradation-aware battery derating framework with potential to duplicate battery lifetime and become the new industry standard

[10] M. Schimpe, J. V. Barreras, B. Wu, G. J. Offer, "Battery Degradation-Aware Current Derating: An Effective Method to Prolong Lifetime and Ease Thermal Management," 2021 J. Electrochem. Soc. 168 060506.

• Critical reviews on battery safety, battery thermal model parameters, battery derating, and battery pre-heating methods:

[11] M. Steinhardt, J. V Barreras, H. Ruan, B. Wu, G. J. Offer, A. Jossen, "Meta-analysis of experimental results for heat capacity and thermal conductivity in lithium-ion batteries: A critical review," J. of Power Sources, Vol. 522, pp. 230829, 2022.

[12] L. Bravo Diaz et al., “Review—Meta-Review of Fire Safety of Lithium-Ion Batteries: Industry Challenges and Research Contributions,” J. Electrochem. Soc., vol. 167, no. 9, p. 090559, Aug. 2020.

[13] H. Ruan, J. V. Barreras, T. Engstrom, Y. Merla, R. Millar, B. Wu, "Lithium-ion battery lifetime extension: A review of derating methods," J. of Power Sources 563, 232805, 2023.

[14] H. Ruan, J.V. Barreras, M. Steinhardt, A. Jossen, G.J. Offer, B. Wu, "The heating triangle: A quantitative review of self-heating methods for lithium-ion batteries at low temperatures," J. of Power Sources 581, 233484, 2023.

• 15 journal articles in Q1, 80% in top 10% journals, 9 in the last two years
• 18 articles in peer-reviewed conferences
• 2 book chapters, one on Elsevier Engineering Encyclopaedia
• +3,000 followers in LinkedIn, +850 Research Interest in Research Gate (92th pct.), +75k reads and 200 recommendations in ResearchGate, +700 citations in Google Scholar, h-index 15, i10-index 22.