This is an early access version, the complete PDF, HTML, and XML versions will be available soon.
Open AccessArticle
Numerical Investigation of the Impact of Variation of Negative Electrode Porosity upon the Cycle Life of Lithium-Ion Batteries
by
Shuangchao Li
Shuangchao Li ,
Peichao Li
Peichao Li *
and
Runzhou Yu
Runzhou Yu
College of Mechanical and Automotive Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
*
Author to whom correspondence should be addressed.
Energies 2025, 18(11), 2883; https://doi.org/10.3390/en18112883 (registering DOI)
Submission received: 12 May 2025
/
Revised: 25 May 2025
/
Accepted: 29 May 2025
/
Published: 30 May 2025
Abstract
Lithium-ion batteries (LIBs), crucial in modern advanced energy storage systems, inherently experience several side reactions during operation, with the formation of a solid electrolyte interface (SEI) and lithium plating being the most significant. These side reactions, which deplete lithium ions and lead to the clogging of negative electrode pores, considerably impair the battery’s cycle life and overall performance. This study introduces a numerical model for the battery aging process, grounded in existing research on SEI formation and its temperature-dependent aging kinetics. The model aims to elucidate how variations in the porosity of the negative electrode impact the battery’s cycle life. The study initially focuses on analyzing the principal mechanisms behind pore clogging in LIBs’ negative electrodes following extensive charge/discharge cycles. Subsequently, the study conducts numerical simulations to thoroughly investigate the effects of various non-uniform porosity structures in the negative electrode, encompassing both linear and gradient configurations, on the battery’s cycle life. Additionally, the investigation conducts a comparative analysis to determine how different gradients in porosity structures influence pore clogging. It also delves into a detailed exploration of heat generation associated with the linear porosity structure of the negative electrode. The results indicate that the accumulation of the SEI layer significantly reduces porosity. This reduction, in turn, affects the conductivity and alters the current density during the SEI reaction. Notably, the linear porosity structure exhibits a significant advantage over traditional structures, especially in terms of reducing pore clogging and minimizing irreversible heat generation. In summary, this study presents a multi-physics and detailed numerical model to evaluate the impact of variations in negative electrode porosity on the cycle life of LIBs. Furthermore, it provides essential theoretical support for battery design and performance optimization, particularly in the determination of pore structures and material selection.
Share and Cite
MDPI and ACS Style
Li, S.; Li, P.; Yu, R.
Numerical Investigation of the Impact of Variation of Negative Electrode Porosity upon the Cycle Life of Lithium-Ion Batteries. Energies 2025, 18, 2883.
https://doi.org/10.3390/en18112883
AMA Style
Li S, Li P, Yu R.
Numerical Investigation of the Impact of Variation of Negative Electrode Porosity upon the Cycle Life of Lithium-Ion Batteries. Energies. 2025; 18(11):2883.
https://doi.org/10.3390/en18112883
Chicago/Turabian Style
Li, Shuangchao, Peichao Li, and Runzhou Yu.
2025. "Numerical Investigation of the Impact of Variation of Negative Electrode Porosity upon the Cycle Life of Lithium-Ion Batteries" Energies 18, no. 11: 2883.
https://doi.org/10.3390/en18112883
APA Style
Li, S., Li, P., & Yu, R.
(2025). Numerical Investigation of the Impact of Variation of Negative Electrode Porosity upon the Cycle Life of Lithium-Ion Batteries. Energies, 18(11), 2883.
https://doi.org/10.3390/en18112883
Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details
here.
Article Metrics
Article Access Statistics
For more information on the journal statistics, click
here.
Multiple requests from the same IP address are counted as one view.