Quantifying Heterogeneities: Degradation During Fast Charge

Research output: NRELPresentation


This presentation investigates limitations in extreme fast charging due to local heterogeneities. This work covers research done by one of six thrusts within the large DOE fast charging program. Length scales investigated span from cm to microns. Novel techniques used include higher energy XRD, in-situ tomography, neutron tomography, and in-situ AFM. The team has compared local SOC heterogeneity at mm length scale with microstructure mapping and not found a strong correlation. Presentation outlines future work needed to understand underlying cause of observed heterogeneity.
Original languageAmerican English
Number of pages28
StatePublished - 2021

Publication series

NamePresented at the 2021 DOE Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting, 21-25 June 2021

NREL Publication Number

  • NREL/PR-5700-79993


  • degradation
  • fast charging
  • heterogeneity
  • Li-ion battery
  • tomography
  • XRD


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