26,500km Down the Pan-American Highway in an Electric Vehicle A Battery's Perspective

Paper #:
  • 2012-01-0123

Published:
  • 2012-04-16
Citation:
Lorf, C., Martinez-Botas, R., and Brandon, N., "26,500km Down the Pan-American Highway in an Electric Vehicle A Battery's Perspective," SAE Int. J. Alt. Power. 1(1):19-26, 2012, https://doi.org/10.4271/2012-01-0123.
Pages:
8
Abstract:
This paper presents a novel battery degradation model based on empirical data from the Racing Green Endurance project. Using the rainflow-counting algorithm, battery charge and discharge data from an electric vehicle has been studied in order to establish more reliable and more accurate predictions for capacity and power fade of automotive traction batteries than those currently available.It is shown that for the particular lithium-iron phosphate (LiFePO₄) batteries, capacity fade is 5.8% after 87 cycles. After 3,000 cycles it is estimated to be 32%. Both capacity and power fade strongly depend on cumulative energy throughput, maximum C-rate as well as temperature.
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