Micro/Macro-Scale Modeling for Battery Fast Charge Applications

Research output: NRELPresentation


In conjunction with experiments at Argonne and Idaho National Laboratories, the National Renewable Energy Laboratory is applying physics-based electrochemical models at several length-scales to understand limitations and guide design of future battery electrodes for extreme fast charge of electric vehicles. Macro-homogeneous models show that today's battery technologies must use thin electrodes to avoid electrolyte depletion and lithium plating at a 6C (10-minute) charge rate. This compromises cost and energy density however. Goals are provided for next generation electrode tortuosity and electrolyte transport requirements to achieve 6C charge in a thick electrode system. Microstructure models provide quantitative understanding of tortuosity for several graphite electrodes and further predict heterogeneous utilization of the electrodes due to their morphology.
Original languageAmerican English
Number of pages28
StatePublished - 2018

Publication series

NamePresented at the U.S. Department of Energy's Vehicle Technologies Office 2018 Annual Merit Review and Peer Evaluation Meeting, 18-21 June 2018, Washington, D.C.

NREL Publication Number

  • NREL/PR-5400-71254


  • electrochemical model
  • electrode microstructure
  • extreme fast charge
  • lithium-ion battery
  • microstructure model
  • morphology
  • tortuosity


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