Background and experience
09/2022 - 02/2024: Postdoctoral Researcher
Autonomous Materials Discovery Section
Department of Energy Conversion and Storage, DTU, Denmark
09/2020 - 09/2022: Postdoctoral Researcher
Atomic Scale Materials Modelling
Department of Energy Conversion and Storage, DTU, Denmark
02/2017 - 08/2020: Ph.D. Energy Science and Engineering
DGIST, Daegu, South Korea
08/2015 - 02/2017: Research Assistant
Energy United Laboratory
Department of Chemical and Biotechnology
HBNU, Daejeon, South Korea
08/2013 - 08/2015: M. Eng. Applied Chemistry
HBNU, Daejeon, South Korea
08/2012 - 08/2013: Teaching Assistant
Department of Chemical Engineering, KNUST, Kumasi, Ghana
08/2008 - 08/2012: B. Sc. Chemical Engineering
KNUST, Kumasi, Ghana
Areas of responsibility
Williams Agyei Appiah has experience in battery modeling and simulation research from DGIST, South Korea (PhD) and Technical University of Denmark (Postdoc). His research activities focus on merging fundamental science and engineering applications of electrochemical devices such as lithium ion and next-generation batteries with work including continuum physics-based modeling, understanding (dis) charging mechanisms, elucidating degradation mechanisms, innovative electrode/cell design optimization, data mining tools and fast predictive models for inverse design.
At the University of Agder, he combines his research and teaching experience to educate and inspire the next generation in battery technology, conducts battery research and design modeling tools to accelerate battery development at the Battery Coast.
Teaching
- ENE421 Battery Simulation
- ENE507 Battery Simulation Lab
Research
- Multiscale modeling and simulation of batteries
- Battery Digitalizaton
- Workflows for battery diagnosis and prognosis
- Modeling of battery degradation mechanisms
- Autonomous workflow for battery electrode design
- Parameterization of electrochemical models
Selected publications
- W. A. Appiah, J. Park, S. Song, S. W. Byun, M.-H. Ryou and Y. M. Lee, Design Optimization of LiNi0.6Co0.2Mn0.2O2/graphite Li-ion cells Based on Simulation and Experimental Data, Journal of Power Sources, 319 (2016) 147-158.
- W. A. Appiah, H. Li, J. Lampkin, and JM. Garcia-Lastra. Towards understanding aluminum sulfur batteries with imidazolium-based electrolytes: A phenomenological model, Journal of Power Sources, 529 (2022) 231254
- W. A. Appiah, J. Busk, T. Vegge, and A. Bhowmik. Sensitivity analysis methodology for battery degradation models, Electrochimica Acta, 439 (2023) 141430
- W. A. Appiah, L. H. Rieger, E. Flores. Vegge, and A. Bhowmik. Unravelling degradation mechanisms and overpotential sources in aged and non-aged batteries: A non-invasive diagnosis, Journal of Energy Storage, 84 (2024) 111000
- W. A. Appiah, A. Stark, S. Lysgaard, J. Busk, P. Jankowski, J. H. Change, A. Bhowmik, B. Gollas, and JM. Garcia-Lastra. Unveiling the plating-stripping mechanism in aluminum batteries with imidazolium-based electrolytes: A hierarchical model based on experiments and ab initio simulations, Chemical Engineering Journal, 472 (2023) 144995.
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