Glass-fiber-reinforced polymeric film as an efficient protecting layer for stable Li metal electrodes

Shilun Gao; Andrew Cannon; Feiyuan Sun; Yiyang Pan; Dandan Yang; Sirui Ge; Nian Liu; Alexei P. Sokolov; Emily Ryan; Huabin Yang; Peng Fei Cao

doi:10.1016/j.xcrp.2021.100534

Glass-fiber-reinforced polymeric film as an efficient protecting layer for stable Li metal electrodes

Shilun Gao
, Andrew Cannon
, Feiyuan Sun
, Yiyang Pan
, Dandan Yang
, Sirui Ge
, Nian Liu
, Alexei P. Sokolov
, Emily Ryan
, Huabin Yang
, Peng Fei Cao

Soft Materials and Membranes

Research output: Contribution to journal › Article › peer-review

23 Scopus citations

Abstract

With numerous reports on protecting films for stable lithium (Li) metal electrodes, the key attributes for how to construct these efficient layers have rarely been fully investigated. Here, we report a rationally designed hybrid protective layer (HPL) with each component aligning with one key attribute; i.e., cross-linked poly(dimethylsiloxane) (PDMS) enhances flexibility, polyethylene glycol (PEG) provides homogeneous ion-conducting channels, and glass fiber (GF) affords mechanical robustness. A significant improvement of the electrochemical performance of HPL-modified electrodes can be achieved in Li/HPL@Cu half cells, HPL@Li/HPL@Li symmetric cells, and HPL@Li/LiFePO₄ full cells. Even with an industrial standard LiFePO₄ cathode (96.8 wt % active material), the assembled cell still exhibits a capacity retention of 90% after 100 cycles at 1 C. More importantly, the functionality of each component has been studied comprehensively via electrochemical and physical experiments and simulations, which will provide useful guidance on how to construct efficient protective layers for next-generation energy storage devices.

Original language	English
Article number	100534
Journal	Cell Reports Physical Science
Volume	2
Issue number	8
DOIs	https://doi.org/10.1016/j.xcrp.2021.100534
State	Published - Aug 18 2021

Funding

S. Gao, F.S., Y.P., and H.Y. are supported by the Natural Science Foundation of China ( 21421001 ), the Natural Science Foundation of Tianjin, China ( 18JCZDJC31400 ), and the MOE Innovation Team ( IRT13022 ). P.-F.C. and A.P.S. acknowledge financial support from the US Department of Energy, Office of Science, Basic Energy Science, Material Science, and Engineering Division . A.C. and E.R. acknowledge partial financial support from the National Science Foundation through grant 1727316 and 2034154 .

Keywords

artificial solid electrolyte interphase
glass fiber
lithium metal batteries
poly(dimethylsiloxane)
polymer
protective layer

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10.1016/j.xcrp.2021.100534

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title = "Glass-fiber-reinforced polymeric film as an efficient protecting layer for stable Li metal electrodes",

abstract = "With numerous reports on protecting films for stable lithium (Li) metal electrodes, the key attributes for how to construct these efficient layers have rarely been fully investigated. Here, we report a rationally designed hybrid protective layer (HPL) with each component aligning with one key attribute; i.e., cross-linked poly(dimethylsiloxane) (PDMS) enhances flexibility, polyethylene glycol (PEG) provides homogeneous ion-conducting channels, and glass fiber (GF) affords mechanical robustness. A significant improvement of the electrochemical performance of HPL-modified electrodes can be achieved in Li/HPL@Cu half cells, HPL@Li/HPL@Li symmetric cells, and HPL@Li/LiFePO4 full cells. Even with an industrial standard LiFePO4 cathode (96.8 wt \% active material), the assembled cell still exhibits a capacity retention of 90\% after 100 cycles at 1 C. More importantly, the functionality of each component has been studied comprehensively via electrochemical and physical experiments and simulations, which will provide useful guidance on how to construct efficient protective layers for next-generation energy storage devices.",

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author = "Shilun Gao and Andrew Cannon and Feiyuan Sun and Yiyang Pan and Dandan Yang and Sirui Ge and Nian Liu and Sokolov, \{Alexei P.\} and Emily Ryan and Huabin Yang and Cao, \{Peng Fei\}",

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doi = "10.1016/j.xcrp.2021.100534",

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AU - Gao, Shilun

AU - Cannon, Andrew

AU - Sun, Feiyuan

AU - Pan, Yiyang

AU - Yang, Dandan

AU - Ge, Sirui

AU - Liu, Nian

AU - Sokolov, Alexei P.

AU - Ryan, Emily

AU - Yang, Huabin

AU - Cao, Peng Fei

PY - 2021/8/18

Y1 - 2021/8/18

N2 - With numerous reports on protecting films for stable lithium (Li) metal electrodes, the key attributes for how to construct these efficient layers have rarely been fully investigated. Here, we report a rationally designed hybrid protective layer (HPL) with each component aligning with one key attribute; i.e., cross-linked poly(dimethylsiloxane) (PDMS) enhances flexibility, polyethylene glycol (PEG) provides homogeneous ion-conducting channels, and glass fiber (GF) affords mechanical robustness. A significant improvement of the electrochemical performance of HPL-modified electrodes can be achieved in Li/HPL@Cu half cells, HPL@Li/HPL@Li symmetric cells, and HPL@Li/LiFePO4 full cells. Even with an industrial standard LiFePO4 cathode (96.8 wt % active material), the assembled cell still exhibits a capacity retention of 90% after 100 cycles at 1 C. More importantly, the functionality of each component has been studied comprehensively via electrochemical and physical experiments and simulations, which will provide useful guidance on how to construct efficient protective layers for next-generation energy storage devices.

AB - With numerous reports on protecting films for stable lithium (Li) metal electrodes, the key attributes for how to construct these efficient layers have rarely been fully investigated. Here, we report a rationally designed hybrid protective layer (HPL) with each component aligning with one key attribute; i.e., cross-linked poly(dimethylsiloxane) (PDMS) enhances flexibility, polyethylene glycol (PEG) provides homogeneous ion-conducting channels, and glass fiber (GF) affords mechanical robustness. A significant improvement of the electrochemical performance of HPL-modified electrodes can be achieved in Li/HPL@Cu half cells, HPL@Li/HPL@Li symmetric cells, and HPL@Li/LiFePO4 full cells. Even with an industrial standard LiFePO4 cathode (96.8 wt % active material), the assembled cell still exhibits a capacity retention of 90% after 100 cycles at 1 C. More importantly, the functionality of each component has been studied comprehensively via electrochemical and physical experiments and simulations, which will provide useful guidance on how to construct efficient protective layers for next-generation energy storage devices.

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ER -

Glass-fiber-reinforced polymeric film as an efficient protecting layer for stable Li metal electrodes

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