Degradation of Commercial Lithium-Ion Cells as a Function of Chemistry and Cycling Conditions

  • Preger Y
  • Barkholtz H
  • Fresquez A
  • et al.
329Citations
Citations of this article
461Readers
Mendeley users who have this article in their library.

This article is free to access.

Abstract

Energy storage systems with Li-ion batteries are increasingly deployed to maintain a robust and resilient grid and facilitate the integration of renewable energy resources. However, appropriate selection of cells for different applications is difficult due to limited public data comparing the most commonly used off-the-shelf Li-ion chemistries under the same operating conditions. This article details a multi-year cycling study of commercial LiFePO 4 (LFP), LiNi x Co y Al 1−x−y O 2 (NCA), and LiNi x Mn y Co 1−x−y O 2 (NMC) cells, varying the discharge rate, depth of discharge (DOD), and environment temperature. The capacity and discharge energy retention, as well as the round-trip efficiency, were compared. Even when operated within manufacturer specifications, the range of cycling conditions had a profound effect on cell degradation, with time to reach 80% capacity varying by thousands of hours and cycle counts among cells of each chemistry. The degradation of cells in this study was compared to that of similar cells in previous studies to identify universal trends and to provide a standard deviation for performance. All cycling files have been made publicly available at batteryarchive.org, a recently developed repository for visualization and comparison of battery data, to facilitate future experimental and modeling efforts.

Cite

CITATION STYLE

APA

Preger, Y., Barkholtz, H. M., Fresquez, A., Campbell, D. L., Juba, B. W., Romàn-Kustas, J., … Chalamala, B. (2020). Degradation of Commercial Lithium-Ion Cells as a Function of Chemistry and Cycling Conditions. Journal of The Electrochemical Society, 167(12), 120532. https://doi.org/10.1149/1945-7111/abae37

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free