Fast Charging of Lithium-ion Cells: Pitfalls and Possibilities
The webinar, hosted by Underwriters Laboratories on December 4, 2020, was presented by Dr. Daniel Abraham, Senior Materials Scientist with Argonne National Laboratory.
This presentation is an overview of extreme fast charge studies being conducted at Argonne National Laboratory as part of projects funded by the U.S. Department of Energy and a discussion on modes of cell aging during repeated exposure to high currents, with particular focus on electrode behavior.
- Results from cells containing layered oxide cathodes and graphite anodes
- The use of a microprobe reference electrode to monitor the onset of Li-plating conditions
- Methodologies to detect Li-plating and investigate lithium concentration gradients that develop in electrodes
These phenomena cause non-uniform degradation across the electrodes thus making it difficult to predict cell life.
Dr. Abraham has authored more than 140 articles in peer-reviewed journals that span the various frontier areas of lithium battery research. These areas include fast charging, crystal structure transformations in electrode materials, silicon electrode development, solid electrolyte interphase (SEI) formation/dissolution mechanisms, electrode stress evolution, electrode and particle coatings, electrolyte additives, and electrochemical modeling. His work enables the development of materials and components that enhance battery performance, life, and safety.