Communication—Effect of Lower Cutoff Voltage on the 1st Cycle Performance of Silicon Electrodes
Abstract
Here, silicon electrodes were cycled once to determine the effect of lower cutoff voltage (LCV) on the irreversible capacity and Li15Si4 phase presence for a protocol that incorporated a potentiostatic hold at the LCV. Cells lithiated below 90 mV showed indications of the crystalline Li15Si4 peak, which was absent for cells with lower cutoff voltages above 90 mV. Irreversible capacity loss was independent of the LCV used. While higher LCVs led to lower capacities, this capacity could be recovered with longer potentiostatic holds. Lastly, these longer holds did not lead to Li15Si4 formation.
- Authors:
-
- Argonne National Lab. (ANL), Lemont, IL (United States)
- Publication Date:
- Research Org.:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)
- OSTI Identifier:
- 1498096
- Grant/Contract Number:
- AC02-06CH11357
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of the Electrochemical Society
- Additional Journal Information:
- Journal Volume: 166; Journal Issue: 2; Journal ID: ISSN 0013-4651
- Publisher:
- The Electrochemical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; Lithium-ion batteries; Silicon
Citation Formats
Tornheim, Adam, Trask, Stephen E., and Zhang, Zhengcheng. Communication—Effect of Lower Cutoff Voltage on the 1st Cycle Performance of Silicon Electrodes. United States: N. p., 2019.
Web. doi:10.1149/2.0111902jes.
Tornheim, Adam, Trask, Stephen E., & Zhang, Zhengcheng. Communication—Effect of Lower Cutoff Voltage on the 1st Cycle Performance of Silicon Electrodes. United States. https://doi.org/10.1149/2.0111902jes
Tornheim, Adam, Trask, Stephen E., and Zhang, Zhengcheng. Sat .
"Communication—Effect of Lower Cutoff Voltage on the 1st Cycle Performance of Silicon Electrodes". United States. https://doi.org/10.1149/2.0111902jes. https://www.osti.gov/servlets/purl/1498096.
@article{osti_1498096,
title = {Communication—Effect of Lower Cutoff Voltage on the 1st Cycle Performance of Silicon Electrodes},
author = {Tornheim, Adam and Trask, Stephen E. and Zhang, Zhengcheng},
abstractNote = {Here, silicon electrodes were cycled once to determine the effect of lower cutoff voltage (LCV) on the irreversible capacity and Li15Si4 phase presence for a protocol that incorporated a potentiostatic hold at the LCV. Cells lithiated below 90 mV showed indications of the crystalline Li15Si4 peak, which was absent for cells with lower cutoff voltages above 90 mV. Irreversible capacity loss was independent of the LCV used. While higher LCVs led to lower capacities, this capacity could be recovered with longer potentiostatic holds. Lastly, these longer holds did not lead to Li15Si4 formation.},
doi = {10.1149/2.0111902jes},
journal = {Journal of the Electrochemical Society},
number = 2,
volume = 166,
place = {United States},
year = {2019},
month = {1}
}
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