PAIR Distinguished Lecture Series: Battery Fast Charging for Sustainable Electrification
PAIR Distinguished Lecture Series
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Date
27 Feb 2024
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Organiser
PolyU Academy for Interdisciplinary Research
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Time
10:30 - 12:00
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Venue
Hybrid (AG204, Podium Level, Chung Sze Yuen Building, PolyU / Online via Zoom)
Speaker
Prof. WANG Chao-Yang
Enquiry
PolyU Academy for Interdisciplinary Research +852 3400 3036 info.pair@polyu.edu.hk
Summary
Prof. WANG Chao-Yang of The Pennsylvania State University delivered the 13th PAIR Distinguished Lecture titled “Battery Fast Charging for Sustainable Electrification” on 27 February 2024. The hybrid lecture attracted over 230 participants joining in person and online from more than 20 countries and regions across Australia, Asia, Europe and North America. It was also broadcast live on multiple social media platforms, captivating online viewing audience of over 13,100.
The lecture commenced with a welcome speech video by Prof. CHEN Qingyan, Director of PAIR, followed by a brief speaker introduction by Prof. LI Ping, Dean of the Faculty of Humanities, Sin Wai Kin Foundation Professor in Humanities and Technology and Chair Professor of Neurolinguistics and Bilingual Studies.
In his presentation, Prof. Wang first gave some background information about the economics of battery fast charging for electric vehicle (EV), pointing out the importance of fast charging in enabling EV affordability and sustainable electrification. He then highlighted the current challenges in fast battery charging at all temperatures and presented the asymmetric temperature modulation (ATM) approach. The ATM method enables 10-minute fast charging of energy-dense Li-ion batteries at any temperature (even at -60°C) while still delivering remarkable cycle life. Next, he presented the novel thermal management concepts for extremely fast charging in both extreme cold and hot conditions and emphasised the need for battery technology that enables both fast-charging and high-temperature stability. To conclude, Prof. Wang believed that the future of battery technology lies in Lean Energy Storage Systems (LESS) coupled with ubiquitous fast charging, which can provide affordable and safe mobile energy. This would require research development to bring forth a new paradigm of battery design and thermal management without having to trade-off between fast charge, safety, lifetime, and cost.
A question-and-answer session moderated by Prof. Li followed. The audience had a fruitful discussion with Prof. Wang.
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Prof. WANG Chao-Yang
William E. Defender Chair Professor, Electrochemical Engine Center (ECEC)
Department of Materials Science and Engineering
The Pennsylvania State University, USA
Prof. WANG Chao-Yang is William E. Diefenderfer Chair Professor of Mechanical Engineering and Professor of Chemical and Materials Science & Engineering at the Pennsylvania State University. He has 230+ journal publications and an H-index of 114. He holds over 140 patents and has published two books, “Battery Systems Engineering” by Wiley and “Modeling and Diagnostics of Polymer Electrolyte Fuel Cells” by Springer. Prof. Wang is known for his innovative research on batteries and fuel cells; particularly for pioneering a new battery paradigm with modulatory states and interfaces. The all-climate battery (ACB) he invented was adopted by 2022 Winter Olympics as well as commercialised by several carmakers. His latest invention on fast charging batteries was named as one of 10 biggest science stories in 2022 by the Guardian. He is a Fellow of U.S. National Academy of Inventors (NAI) and American Society of Mechanical Engineers (ASME) and a speaker of many public forums such as 2021 Tencent WE Summit alongside two Nobel Laureates, 2022 Distinguished Transport Lecture at Hong Kong University, and 2023 Hawkins Lecture at Purdue University. Prof. Wang’s expertise covers the transport, materials, manufacturing and modelling of batteries and fuel cells.
