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Title: Mitigating the initial capacity loss and improving the cycling stability of silicon monoxide using Li 5FeO 4

Abstract

Silicon monoxide (SiO) is a promising next-generation anode material for lithium-ion batteries due to the high capacity it offers. However, such material also exhibits a large initial capacity loss which results in significant loss of Li inventory to irreversible reactions in a full cell. To mitigate the Li inventory loss due to the initial capacity loss of the SiO anode, a prelithiation reagent, Li 5FeO 4, is added to the LiNi 0.5Co 0.2Mn 0.3O 2 (NCM523) cathode, which is then paired with a SiO anode for electrochemical evaluation. The addition of Li 5FeO 4 leads to a significant 22% improvement in lithium utilization in NCM523. Furthermore, the capacity retention of the full cell increased from 90.94% to 98.92% for 50 cycles. We then further studied the impact of Li 5FeO 4 addition on the energy density of the cell via modeling. In order to maximize the energy density improvement, thicker electrodes need to be utilized.

Authors:
ORCiD logo; ; ; ORCiD logo; ORCiD logo
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE) - Office of Vehicle Technology; USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1487117
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Power Sources
Additional Journal Information:
Journal Volume: 400; Journal Issue: C; Journal ID: ISSN 0378-7753
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
Li5FeO4; lithium-ion batteries; prelithiation; silicon monoxide

Citation Formats

Zhang, Linghong, Dose, Wesley M., Vu, Anh D., Johnson, Christopher S., and Lu, Wenquan. Mitigating the initial capacity loss and improving the cycling stability of silicon monoxide using Li5FeO4. United States: N. p., 2018. Web. doi:10.1016/j.jpowsour.2018.08.061.
Zhang, Linghong, Dose, Wesley M., Vu, Anh D., Johnson, Christopher S., & Lu, Wenquan. Mitigating the initial capacity loss and improving the cycling stability of silicon monoxide using Li5FeO4. United States. doi:10.1016/j.jpowsour.2018.08.061.
Zhang, Linghong, Dose, Wesley M., Vu, Anh D., Johnson, Christopher S., and Lu, Wenquan. Mon . "Mitigating the initial capacity loss and improving the cycling stability of silicon monoxide using Li5FeO4". United States. doi:10.1016/j.jpowsour.2018.08.061. https://www.osti.gov/servlets/purl/1487117.
@article{osti_1487117,
title = {Mitigating the initial capacity loss and improving the cycling stability of silicon monoxide using Li5FeO4},
author = {Zhang, Linghong and Dose, Wesley M. and Vu, Anh D. and Johnson, Christopher S. and Lu, Wenquan},
abstractNote = {Silicon monoxide (SiO) is a promising next-generation anode material for lithium-ion batteries due to the high capacity it offers. However, such material also exhibits a large initial capacity loss which results in significant loss of Li inventory to irreversible reactions in a full cell. To mitigate the Li inventory loss due to the initial capacity loss of the SiO anode, a prelithiation reagent, Li5FeO4, is added to the LiNi0.5Co0.2Mn0.3O2 (NCM523) cathode, which is then paired with a SiO anode for electrochemical evaluation. The addition of Li5FeO4 leads to a significant 22% improvement in lithium utilization in NCM523. Furthermore, the capacity retention of the full cell increased from 90.94% to 98.92% for 50 cycles. We then further studied the impact of Li5FeO4 addition on the energy density of the cell via modeling. In order to maximize the energy density improvement, thicker electrodes need to be utilized.},
doi = {10.1016/j.jpowsour.2018.08.061},
journal = {Journal of Power Sources},
number = C,
volume = 400,
place = {United States},
year = {2018},
month = {10}
}

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