Koffi Pierre Yao is an Assistant Professor in the Department of Mechanical Engineering at the University of Delaware and Principal Investigator of LEAD.
Professor Yao’s research focuses on the design, fabrication, and characterization of energy materials for energy storage including Lithium-Ion, Sodium-Ion and Lithium-Sulfur, and conversion-based batteries. He is particularly interested in the development and utilization of operando electrochemical tools such as operando diffraction and spectroscopy for quasi real-time understanding of energy materials. His research interests are: (i) understanding of battery materials using operando synchrotron tools, (ii) understanding of degradation mechanics in conversion anodes for Lithium-Ion batteries in tandem with novel material design to mitigate these identified degradation pathways, (iii) developing novel electrolyte systems for suppression of polysufide shuttling in Lithium-Sulfur batteries, (iv) modeling of coupled transport and thermodynamics in ion-intercalation energy storage materials, (v) application of data science tools to energy material discovery and (vi) stochastic simulation of electric vehicle and grid interactions.

Short Bio:

2018: Assistant Professor of Mechanical Engineering at the University of Delaware
2016 – 2018: Postdoctoral Researcher at Argonne National Laboratory Chemical Science and Engineering Division
2010 – 2016: Mechanical Engineering Ph.D at the Massachusetts Institute of Technology
2006 – 2010: Mechanical Engineering B.Sc at the University of Delaware

Email: || Room: 334 Spencer Lab, UD || Phone: 302-831-6457



Pradip Das

Ph.D Students

Gbenga Taiwo

Mritunjay Mishra

Sattajit Barua

Emmanuel Obetta

Master’s Students

Looking for candidate (volunteer position)

Undergraduate researchers




Ali Rashti (Currently employed at Ford Ion Park)

Dr. Mullaivananathan Vadivazhagan (Postdoc completed)

Ph.D Students

Rownak Jahan Mou (Graduated Ph.D.)

Master’s Students

Shane Nicholas Sherman (Currently employed)

Undergraduate researchers

Claire Cho

Stephanie Ross (Currently pursuing a Ph.D. at MIT)

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