Lithium iron phosphate based battery: Assessment of the aging parameters and development of cycle life model

Noshin Omar (Corresponding Author), Mohamed Abdel Monem, Yousef Firouz, Justin Salminen, Jelle Smekens, Omar Hegazy, Hamid Gaulous, Grietus Mulder, Peter Van den Bossche, Thierry Coosemans, Joeri Van Mierlo

Research output: Contribution to journalArticleScientificpeer-review

544 Citations (Scopus)


From these analyses, one can derive the impact of the working temperature on the battery performances over its lifetime. At elevated temperature (40°C), the performances are less compared to at 25°C. The obtained mathematical expression of the cycle life as function of the operating temperature reveals that the well-known Arrhenius law cannot be applied to derive the battery lifetime from one temperature to another.Moreover, a number of cycle life tests have been performed to illustrate the long-term capabilities of the proposed battery cells at different discharge constant current rates. The results reveal the harmful impact of high current rates on battery characteristics.On the other hand, the cycle life test at different depth of discharge levels indicates that the battery is able to perform 3221 cycles (till 80% DoD) compared to 34,957 shallow cycles (till 20% DoD). To investigate the cycle life capabilities of lithium iron phosphate based battery cells during fast charging, cycle life tests have been carried out at different constant charge current rates. The experimental analysis indicates that the cycle life of the battery degrades the more the charge current rate increases. From this analysis, one can conclude that the studied lithium iron based battery cells are not recommended to be charged at high current rates. This phenomenon affects the viability of ultra-fast charging systems.Finally, a cycle life model has been developed, which is able to predict the battery cycleability accurately.
Original languageEnglish
Pages (from-to)1575-1585
JournalApplied Energy
Publication statusPublished - 2014
MoE publication typeA1 Journal article-refereed


  • cycle life tests
  • depth of discharge
  • discharge current
  • fast charging
  • lithium-ion batteries
  • working temperature


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