Journal of Energy Chemistry, volume 58, pages 17-24

Enabling high-performance all-solid-state lithium batteries with high ionic conductive sulfide-based composite solid electrolyte and ex-situ artificial SEI film

Publication typeJournal Article
Publication date2021-07-01
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor13.1
ISSN20954956
Electrochemistry
Energy Engineering and Power Technology
Fuel Technology
Energy (miscellaneous)
Abstract
A highly conductive sulfide-based composite solid electrolyte and an ex-situ artificial SEI on Li anode were creatively designed for ASSLBs. Cells of S-CNTs/LPSCl-PEO3-LiTFSI/Li(SEI) and Al 2 O 3 @NCM532/LPSCl-PEO3-LiTFSI/Li(SEI) both exhibit excellent electrochemical performance. • A high ionic conductive sulfide-based composite solid electrolyte was prepared. • An ex-situ artificial SEI was used as protective layer on Li anode. • The electrolyte exhibits improved interfacial stability with Li(SEI) anode. • The assembled ASSLBs demonstrate excellent electrochemical performance. All-solid-state lithium batteries (ASSLBs) employing sulfide electrolyte and lithium (Li) anode have received increasing attention due to the intrinsic safety and high energy density. However, the thick electrolyte layer and lithium dendrites formed at the electrolyte/Li anode interface hinder the realization of high-performance ASSLBs. Herein, a novel membrane consisting of Li 6 PS 5 Cl (LPSCl), poly(ethylene oxide) (PEO) and Li-salt (LiTFSI) was prepared as sulfide-based composite solid electrolyte (LPSCl-PEO3-LiTFSI) (LPSCl:PEO = 97:3 wt/wt; EO:Li = 8:1 mol/mol), which delivers high ionic conductivity (1.1 × 10 −3 S cm −1 ) and wide electrochemical window (4.9 V vs. Li + /Li) at 25 °C. In addition, an ex-situ artificial solid electrolyte interphase (SEI) film enriched with LiF and Li 3 N was designed as a protective layer on Li anode (Li(SEI)) to suppress the growth of lithium dendrites. Benefiting from the synergy of sulfide-based composite solid electrolyte and ex-situ artificial SEI, cells of S-CNTs/LPSCl-PEO3-LiTFSI/Li(SEI) and Al 2 O 3 @LiNi 0.5 Co 0.3 Mn 0.2 O 2 /LPSCl-PEO3-LiTFSI/Li(SEI) are assembled and both exhibit high initial discharge capacity of 1221.1 mAh g −1 (135.8 mAh g −1 ) and enhanced cycling stability with 81.6% capacity retention over 200 cycles at 0.05 C (89.2% over 100 cycles at 0.1 C). This work provides a new insight into the synergy of composite solid electrolyte and artificial SEI for achieving high-performance ASSLBs.

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Yi J. et al. Enabling high-performance all-solid-state lithium batteries with high ionic conductive sulfide-based composite solid electrolyte and ex-situ artificial SEI film // Journal of Energy Chemistry. 2021. Vol. 58. pp. 17-24.
GOST all authors (up to 50) Copy
Yi J., Zhou D., Liang Y., Liu H., Ni H., Fan L. Enabling high-performance all-solid-state lithium batteries with high ionic conductive sulfide-based composite solid electrolyte and ex-situ artificial SEI film // Journal of Energy Chemistry. 2021. Vol. 58. pp. 17-24.
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RIS Copy
TY - JOUR
DO - 10.1016/j.jechem.2020.09.038
UR - https://doi.org/10.1016/j.jechem.2020.09.038
TI - Enabling high-performance all-solid-state lithium batteries with high ionic conductive sulfide-based composite solid electrolyte and ex-situ artificial SEI film
T2 - Journal of Energy Chemistry
AU - Yi, Jingguang
AU - Zhou, Dan
AU - Liang, Yu-Hao
AU - Liu, Hong
AU - Ni, Haifang
AU - Fan, Li‐Zhen
PY - 2021
DA - 2021/07/01 00:00:00
PB - Elsevier
SP - 17-24
VL - 58
SN - 2095-4956
ER -
BibTex
Cite this
BibTex Copy
@article{2021_Yi,
author = {Jingguang Yi and Dan Zhou and Yu-Hao Liang and Hong Liu and Haifang Ni and Li‐Zhen Fan},
title = {Enabling high-performance all-solid-state lithium batteries with high ionic conductive sulfide-based composite solid electrolyte and ex-situ artificial SEI film},
journal = {Journal of Energy Chemistry},
year = {2021},
volume = {58},
publisher = {Elsevier},
month = {jul},
url = {https://doi.org/10.1016/j.jechem.2020.09.038},
pages = {17--24},
doi = {10.1016/j.jechem.2020.09.038}
}
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