Recovery Procedure for Deeply Discharged LiFePo4 Traction Battery

https://doi.org/10.26552/com.C.2020.4.121-127

  • Matus Danko
  • Juraj Adamec
  • Peter Drgona
  • Michal Frivaldsky
Keywords: traction battery, deep discharge, battery recovery, LiFePO4

Abstract

Presented paper deals with possibility of recovery of damaged traction batteries by deep discharge. For the test of proposed charging algorithm, new, unused cell was selected, the deeply discharged condition of which was caused by the self-discharge during the improper storage. The cell had significant damage of package in the central part. For the battery testing, experimental set-up was realized for automated recovering procedure and other tests of cells. For verification of the proposed algorithm, a recovered cell was compared to a reference/new cell by testing the delivered ampere-hours for various discharging current. The final evaluation shows that the proposed algorithm for recovery of the deeply discharged cell can recover up to 70% of the nominal cell capacity.

Author Biographies

Matus Danko

Department of Mechatronics and Electronics, Faculty of Electrical Engineering and Information Technologies, University of Zilina, Slovakia

Juraj Adamec

Department of Mechatronics and Electronics, Faculty of Electrical Engineering and Information Technologies, University of Zilina, Slovakia

Peter Drgona

Department of Mechatronics and Electronics, Faculty of Electrical Engineering and Information Technologies, University of Zilina, Slovakia

Michal Frivaldsky

Department of Mechatronics and Electronics, Faculty of Electrical Engineering and Information Technologies, University of Zilina, Slovakia

Published
2020-10-01
How to Cite
Matus Danko, Juraj Adamec, Peter Drgona, & Michal Frivaldsky. (2020). Recovery Procedure for Deeply Discharged LiFePo4 Traction Battery. Communications - Scientific Letters of the University of Zilina, 22(4), 121-127. https://doi.org/10.26552/com.C.2020.4.121-127
Section
Electrical Engineering in Transport