Imperial College London

Dr Haijun Ruan (阮海军)

Faculty of EngineeringDyson School of Design Engineering

Research Associate







Dyson BuildingSouth Kensington Campus





Dr. Haijun Ruan joined the Dyson School of Design Engineering as a Research Associate in 2020. He works with Dr. Billy Wu, Dr. Gregory Offer, and Dr. Huizhi Wang on multiple research projects at Electrochemical Science & Engineering (ESE) group at Imperial College London.

He obtained the PhD (2019) and Bachelor (2014) degrees in electrical engineering at Beijing Jiaotong University, China. During his PhD period, he was a visiting student researcher with Purdue University, West Lafayette, USA, in 2018. His PhD research activities mainly focused on the modeling, low-temperature heating, and charging for lithium-ion batteries in electric vehicles and energy storage systems. He was a research fellow with the University of Southampton in early 2020. Before coming to UK, he got Merit Student of Beijing (2014), National Scholarship (2013, 2014, 2016, and 2018), and Zhixing scholarship (top scholarship for postgraduate students in Beijing Jiaotong University, 2019).

His current research focuses on lithium-ion battery modeling, and machine learning-based degradation diagnostics and lifetime prediction.



Ruan H, Jiang J, Sun B, et al., 2019, An optimal internal-heating strategy for lithium-ion batteries at low temperature considering both heating time and lifetime reduction, Applied Energy, Vol:256, ISSN:0306-2619, Pages:113797-113797

Jiang J, Ruan H, Sun B, et al., 2018, A low-temperature internal heating strategy without lifetime reduction for large-size automotive lithium-ion battery pack, Applied Energy, Vol:230, ISSN:0306-2619, Pages:257-266

Ruan H, Jiang J, Sun B, et al., 2018, Online estimation of thermal parameters based on a reduced wide-temperature-range electro-thermal coupled model for lithium-ion batteries, Journal of Power Sources, Vol:396, ISSN:0378-7753, Pages:715-724

Ruan H, Jiang J, Ju Q, et al., 2017, A Reduced Wide-temperature-range Electro-thermal Model and Thermal Parameters Determination for Lithium-ion Batteries, Energy Procedia, Vol:105, ISSN:1876-6102, Pages:805-810

Jiang J, Ruan H, Sun B, et al., 2016, A reduced low-temperature electro-thermal coupled model for lithium-ion batteries, Applied Energy, Vol:177, ISSN:0306-2619, Pages:804-816

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