Cycle life characterisation of large format lithium-ion cells

Raghavendra Arunachala, Kamyar Makinejad, Satyajit Athlekar, Andreas Jossen, Juergen Garche

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

10 Scopus citations

Abstract

To predict the remaining useful life (RUL), commercially available lithium-ion cells of 63 Ah with nickel manganese cobalt oxide (NMC) cathode material underwent cycle life ageing tests at different current rates (C) and temperature. The key performance parameters such cell capacity, discharge capability and impedance were measured for fresh and aged cells to evaluate the RUL of the cells. The results of ageing tests showed, cell capacity was not influenced by impedance increase slightly regardless of the cycling conditions, rather power fade significant in determining the RUL of the cells. Detailed study of impedance characteristics revealed series resistance (Rser) and solid electrolyte interface resistance (Rsei) as main contributors to power fade.

Original languageEnglish
Title of host publication2013 World Electric Vehicle Symposium and Exhibition, EVS 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479938322
DOIs
StatePublished - 1 Oct 2014
Event27th World Electric Vehicle Symposium and Exhibition, EVS 2014 - Barcelona, Spain
Duration: 17 Nov 201320 Nov 2013

Publication series

Name2013 World Electric Vehicle Symposium and Exhibition, EVS 2014

Conference

Conference27th World Electric Vehicle Symposium and Exhibition, EVS 2014
Country/TerritorySpain
CityBarcelona
Period17/11/1320/11/13

Keywords

  • fast charge
  • large format cells
  • power fade
  • remaining useful life

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