Work Description

Title: Dataset for "Degradation and Expansion of Lithium-Ion Batteries with Silicon/Graphite Anodes: Impact of Pretension, Temperature, C-rate and State-of-Charge Window" Open Access Deposited

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Methodology
  • 1. An extensive test matrix was implemented to examine the cell-level degradation behavior on batteries with Si/Gr anodes. 2. Capacity, resistance, reversible expansion, and irreversible expansion were analyzed on 16 groups of cells. The voltage and current data were collected by NEWARE and ARBIN. Expansion data were collected by a specially designed fixture in our lab. EIS data were collected by BIOLOGIC. 3. ICA and DVA were implemented to identify thermodynamic degradation mechanisms. 4. An equivalent circuit model was utilized to estimate parameters from measured EIS to identify the kinetic degradation mechanism.
Description
  • Lithium-ion batteries with silicon/graphite (Si/Gr) anodes achieve higher energy densities but face challenges such as rapid capacity fade, resistance growth, and complex expansion behavior under various cycling conditions. This study systematically addresses these challenges through a comprehensive test matrix to investigate the effects of pressure, temperature, state-of-charge (SoC) windows, and charge rates (C-rates) on the evolution of expansion, resistance, and capacity behavior over the lifetime of the battery. Increasing the applied pressure between 34 and 172 kPa reduced both reversible and irreversible expansion per cycle, as well as resistance growth over time, without significantly impacting capacity fade. Electrochemical Impedance Spectroscopy (EIS) confirmed that increased pressure lowered initial solution resistance and mitigated the growth of the solution and solid electrolyte interphase (SEI) resistance. Elevated temperature (45°C) extended battery cycle life despite an initial increase in resistance. Under these conditions, the lifetime impedance increase was dominated by SEI resistance. Consistent with prior studies, operating in a narrow SoC window at high SoC minimized capacity loss. Additionally, charge rates up to 2C had a limited effect on the overall degradation trends. Incremental capacity analysis (ICA) and differential voltage analysis (DVA) identified lithium inventory loss (LLI) as the primary driver of pre-knee degradation, whereas post-knee degradation resulted from a combination of LLI and anode-active material loss, particularly silicon. The deeper understanding of degradation mechanisms in batteries with Si/Gr anodes provided by this work enables the optimal packaging design and selection of operating conditions for the battery management system to extend battery cycle life.
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Creator ORCID iD
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Contact information
Discipline
Funding agency
  • National Science Foundation (NSF)
  • Other Funding Agency
Other Funding agency
  • General Motors Company
Keyword
Citations to related material
  • Z. Wan et al. Degradation and Expansion of Lithium-Ion Batteries with Silicon/Graphite Anodes: Impact of Pretension, Temperature, C-rate and State-of-Charge Window
Resource type
Last modified
  • 03/18/2025
Published
  • 03/18/2025
DOI
  • https://doi.org/10.7302/n5q0-vv61
License
To Cite this Work:
Wan, Z., Pannala, S., Solbrig, C., Stefanopoulou, A. G., Siegel, J. B., Lee, J. (2025). Dataset for "Degradation and Expansion of Lithium-Ion Batteries with Silicon/Graphite Anodes: Impact of Pretension, Temperature, C-rate and State-of-Charge Window" [Data set], University of Michigan - Deep Blue Data. https://doi.org/10.7302/n5q0-vv61

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Files (Count: 38; Size: 222 MB)

Thumbnailthumbnail-column Title Original Upload Last Modified File Size Access Actions
Readme.docx 2025-03-05 2025-03-18 9.86 KB Open Access
EIS_Model_and_Parameter_Fitting.m 2025-03-05 2025-03-05 7.73 KB Open Access
Estimated_EIS_Paras_Group1_EIS_BOL.csv 2025-03-05 2025-03-05 1.63 KB Open Access
Estimated_EIS_Paras_Group1_EIS_EOL.csv 2025-03-05 2025-03-05 703 Bytes Open Access
Estimated_EIS_Paras_Group2_EIS_BOL.csv 2025-03-05 2025-03-05 1.63 KB Open Access
Estimated_EIS_Paras_Group2_EIS_EOL.csv 2025-03-05 2025-03-05 704 Bytes Open Access
Estimated_EIS_Paras_Group3_EIS_BOL.csv 2025-03-05 2025-03-05 1.63 KB Open Access
Estimated_EIS_Paras_Group3_EIS_EOL.csv 2025-03-05 2025-03-05 570 Bytes Open Access
Estimated_EIS_Paras_Group4_EIS_BOL.csv 2025-03-05 2025-03-05 1.63 KB Open Access
Estimated_EIS_Paras_Group4_EIS_EOL.csv 2025-03-05 2025-03-05 704 Bytes Open Access
Estimated_EIS_Paras_Group5_EIS_BOL.csv 2025-03-05 2025-03-05 1.62 KB Open Access
Estimated_EIS_Paras_Group5_EIS_EOL.csv 2025-03-05 2025-03-05 837 Bytes Open Access
Figure2_a.csv 2025-03-05 2025-03-05 1.58 KB Open Access
Figure2_b.csv 2025-03-05 2025-03-05 1.34 KB Open Access
Figure2_c.csv 2025-03-05 2025-03-05 1.16 KB Open Access
Figure2_d.csv 2025-03-05 2025-03-05 1.44 KB Open Access
Figure3_a.csv 2025-03-05 2025-03-05 1.96 KB Open Access
Figure3_b.csv 2025-03-05 2025-03-05 1.84 KB Open Access
Figure3_c.csv 2025-03-05 2025-03-05 1.4 KB Open Access
Figure3_d.csv 2025-03-05 2025-03-05 1.49 KB Open Access
Group1_EIS_BOL.csv 2025-03-05 2025-03-05 31 MB Open Access
Group1_EIS_EOL.csv 2025-03-05 2025-03-05 13 MB Open Access
Group2_EIS_BOL.csv 2025-03-05 2025-03-05 31.2 MB Open Access
Group2_EIS_EOL.csv 2025-03-05 2025-03-05 13.5 MB Open Access
Group3_EIS_BOL.csv 2025-03-05 2025-03-05 31.2 MB Open Access
Group3_EIS_EOL.csv 2025-03-05 2025-03-05 10.5 MB Open Access
Group4_EIS_BOL.csv 2025-03-05 2025-03-05 31 MB Open Access
Group4_EIS_EOL.csv 2025-03-05 2025-03-05 13.1 MB Open Access
Group5_EIS_BOL.csv 2025-03-05 2025-03-05 31.2 MB Open Access
Group5_EIS_EOL.csv 2025-03-05 2025-03-05 15.5 MB Open Access
LICENSE.rtf 2025-03-05 2025-03-05 1.84 KB Open Access
RPT_BOL_25degC.csv 2025-03-05 2025-03-05 194 KB Open Access
RPT_BOL_45degC.csv 2025-03-05 2025-03-05 194 KB Open Access
RPT_EOL_25degC.csv 2025-03-05 2025-03-05 109 KB Open Access
RPT_EOL_45degC.csv 2025-03-05 2025-03-05 107 KB Open Access
RPT_PreKnee_25degC.csv 2025-03-05 2025-03-05 189 KB Open Access
RPT_PreKnee_25degC.csv 2025-03-05 2025-03-05 189 KB Open Access
RPT_PreKnee_45degC.csv 2025-03-05 2025-03-05 179 KB Open Access

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