Skip to main content
Article
Technical Paper Three-Dimensional Electrochemical Analysis of a Graphite/LiFePO4 Li-Ion Cell to Improve Its Durability
SAE Technical Paper
  • Mehrdad Mastali Majdabadi Kohneh
  • Ehsan Samadani
  • Siamak Farhad, University of Akron, Main Campus
  • Roydon Fraser
  • Michael Fowler
Document Type
Article
Publication Date
4-14-2015
Abstract
Lithium-ion batteries (LIBs) are one of the best candidates as energy storage systems for automobile applications due to their high power and energy densities. However, durability in comparison to other battery chemistries continues to be key factor in prevention of wide scale adoption by the automotive industry. In order to design more-durable, longer-life, batteries, reliable and predictive battery models are required. In this paper, an effective model for simulating full-size LIBs is employed that can predict the operating voltage of the cell and the distribution of variables such as electrochemical current generation and battery state of charge (SOC). This predictive ability is used to examine the effect of parameters such as current collector thickness and tab location for the purpose of reducing non-uniform voltage and current distribution in the cell. It is identified that reducing the non-uniformities can reduce the ageing effects and increase the battery durability. Finally, it is observed that simply changing tab locations can change the degree of non-uniformity in electrochemical current generation from a max-min variation of 10 % to 3 % across the entire cell.
Required Publisher's Statement
Presented at SAE 2015 World Congress & Exhibition
Comments
Presented at SAE 2015 World Congress & Exhibition
Citation Information
Mehrdad Mastali Majdabadi Kohneh, Ehsan Samadani, Siamak Farhad, Roydon Fraser, et al.. "Technical Paper Three-Dimensional Electrochemical Analysis of a Graphite/LiFePO4 Li-Ion Cell to Improve Its Durability" SAE Technical Paper (2015)
Available at: http://works.bepress.com/siamak_farhad/13/