[CCoE Notice] (9 am US Central Time) Zoom Webinar: All-Solid-State Batteries: Interface Design, New Electrolyte and Electrode * 9:00 am, Friday, October 2 * Xueliang (Andy) Sun * University of Western Ontario *

[Knudsen, Rachel W]

                                                                            ***** Seminar *****

Department of Electrical and Computer Engineering

Materials Engineering Program

Center for Integrated Bio and Nano Systems

  9:00 a.m., October 2, 2020

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Meeting ID: 845 619 943

Password: 016104



All-Solid-State Batteries: Interface Design, New Electrolyte and Electrode


Dr. Xueliang (Andy) Sun

 Professor and Tier 1 Canada Research Chair

Fellow of Royal Society of Canada

and Fellow of the Canadian Academy of Engineering

University of Western Ontario, Ontario, Canada


Abstract: All-state-state lithium batteries (ASSLBs) have gained worldwide attention because of the high ionic conductivity of SEs, intrinsic safety and increased energy density. In ASSLBs, solid-state electrolyte is a key component and interface is a big challenge. In this talk, I will talk about two types of solid-state electrolytes including sulfide-based electrolyte (focusing on interface) and halide-based electrolytes (focusing on synthesis). In the first part of this talk, I will demonstrate to apply ALD/MLD for interface design between sulfide-based electrolyte and cathode material. Compared with polymer-based and oxide-based electrolytes, sulfide-based electrolyte generally exhibits the highest ionic conductivity (10-3 ~ 10-2 S/cm) and favorable mechanical property. However, the serious interfacial challenge, bad air stability, narrow electrochemical windows of sulfide-based electrolyte significantly impede development of sulfide-based ASSLBs. ALD/MLD are ideal for addressing the challenges of interface in SSLBs. In the second part of this talk, I will talk about halide-based electrolyte for ASSLBs. Compared with sulfide-based electrolyte, both experimental and theoretical results recently demonstrate that halide-based electrolytes have more advantages including high RT ionic conductivity (>10-3 S cm-1, theoretically possible 10-2 S cm-1), wide electrochemically stable window (possible up to 6 V), high air-stability, good stability toward oxide cathode materials, and even salable water synthesis strategy.


Short Bio: Dr. Andy (Xueliang) Sun is a Full Professor and senior Canada Research Chair (Tier I) for the development of nanomaterials for clean energy, at the University of Western Ontario, Canada. Dr. Sun is a Fellow of Royal Society of Canada  and Fellow of the Canadian Academy of Engineering. Dr. Sun received his Ph.D degree in Materials Chemistry at the University of Manchester, UK, in 1999. Then, he worked as a post-doctoral fellow in the University of British Columbia, Canada, during 1999-2001. He was a Research Associate at the National Institut de la Recherche Scientifique (INRS), Quebec, Canada, during 2001-2004.


Dr. Sun’s research is focused on advanced materials for energy conversion and storage including Li batteries and fuel cells. Dr. Sun is an author and co-author of over 490 refereed-journals (e.g. Nature Energy, Nature Communications, Advanced Materials, J. Am. Chem. Soc., Angew. Chem., Nano Letter, Energy & Environmental Science) with citations of over 30,000 times and H-index of 91. Dr. Sun was named as one of "Highly Cited Researchers" in 2018 and 2019. He edited 4 books and published 18 book chapters as well as filed 24 patents. He has given more than 120 plenary/keynote/invited talks in international conferences, symposia and workshops. Dr. Sun is actively collaborating with industries and government labs such as Ballard Power Systems, General Motors, Lithium Phostech Inc., 3M, and China Automotive Battery Research Institute Co.. Since he joined Western in 2004, Dr. Sun secured over $24M research finding. Dr. Sun received various awards such as Early Researcher Award (2006), Canada Research Chair (2007, 2013) and University Faculty Scholar Award (2010), Western Engineering Prize for Achievement in Research (2013), Fellow of Royal Society of Canada (2016), Fellow of the Canadian Academy of Engineering (2016), Professional Achievement Awards from Cross-cultural Professionals Association of Canada (CPAC, 2016), Award for Research Excellence in Materials Chemistry Winner from Canada Chemistry Society (2018), Award of Merit of the Federation of Chinese Canadian Professionals (2018), and Western Hellmuth Prizes (The highest Research Achievement Award in the University, 2019). Dr. Sun is a Vice Chairman of the International Academy of Electrochemical Energy Science (IAOEES). He also serves as an Editor-in-Chief of “Electrochemical Energy Review” under Spring-Nature.

Please contact Dr. Yan Yao <yyao4 at Central.UH.EDU> or Jiming Bao (jbao at uh.edu) if you want to meet with the speaker.


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