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Characterizing Performance Fading in Lithium-Ion Cells: An Efficiency-Centric Approach

by Abhishek Baer

Posted: October 22, 2025
Server: Preprints.org
DOI: 10.20944/preprints202510.1727.v1

This paper investigates the performance degradation of lithiumion cells, with a specific focus on energy efficiency throughout their operational life. A novel metric, termed State of Efficiency (SOE), is introduced to quantify energy losses during charge-discharge cycles. Utilizing empirical battery aging data, the evolution of SOE is analyzed, revealing a linear decay trend. Furthermore, the influence of operational variables, including temperature and discharge rates, on SOE is examined. The findings contribute to a refined understanding of efficiency dynamics in lithium-ion cells, providing insights for enhanced battery management strategies.

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