ACS applied materials & interfaces, volume 12, issue 38, pages 42653-42659

Stable and Flexible Sulfide Composite Electrolyte for High-Performance Solid-State Lithium Batteries

Ka Ming Ng 1
William Arnold 2
Arjun Thapa 1
Jacek B. Jasinski 1
Gamini Sumanasekera 1, 3
Mahendra Sunkara 1, 4
Thad Druffel 1
Hui Wang 1, 2
1
 
Conn Center for Renewable Energy Research, University of Louisville, Louisville, Kentucky 40292, United States
2
 
Department of Mechanical Engineering, University of Louisville, Louisville, Kentucky 40292, United States
3
 
Department of Physics & Astronomy, University of Louisville, Louisville, Kentucky 40208, United States
4
 
Department of Chemical Engineering, University of Louisville, Louisville, Kentucky 40292, United States
Publication typeJournal Article
Publication date2020-08-26
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor9.5
ISSN19448244, 19448252
General Materials Science
Abstract
Sulfide-based lithium (Li)-ion conductors represent one of the most popular solid electrolytes (SEs) for solid-state Li metal batteries (SSLMBs) with high safety. However, the commercial application of sulfide SEs is significantly limited by their chemical instability in air and electrochemical instability with electrode materials (metallic Li anode and oxide cathodes). To address these difficulties, here, we design and successfully demonstrate a novel sulfide-incorporated composite electrolyte (SCE) through the combination of inorganic sulfide Li argyrodite (Li7PS6) with poly(vinylidenefluoride-co-hexafluoropropylene) (PVDF-HFP) polymer. In this composite structure, Li7PS6 is embedded in PVDF-HFP polymer matrix, making the SCE flexible and air-stable and achieve great chemical and electrochemical stability. Meanwhile, the presence of sulfide facilitates Li-ion transport in SCE, leading to a superior room-temperature ionic conductivity of 1.1 × 10-4 S cm-1. Using the SCE with enhanced stability while maintaining high conductivity, Li||Li symmetric cells achieved stable cycling up to 1000 h at 0.2 mA cm-2. In addition, LiFePO4 (LFP)||SCE||Li cells can deliver an impressive specific capacity of 160 mAh g-1 over 150 cycles. These features indicate that Li7PS6/PVDF-HFP SCE is a promising candidate to contribute to the practical development of SSLMBs.

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GOST Copy
Ming Ng K. et al. Stable and Flexible Sulfide Composite Electrolyte for High-Performance Solid-State Lithium Batteries // ACS applied materials & interfaces. 2020. Vol. 12. No. 38. pp. 42653-42659.
GOST all authors (up to 50) Copy
Ming Ng K., Arnold W., Thapa A., Jasinski J. B., Sumanasekera G., Sunkara M., Druffel T., Wang H. Stable and Flexible Sulfide Composite Electrolyte for High-Performance Solid-State Lithium Batteries // ACS applied materials & interfaces. 2020. Vol. 12. No. 38. pp. 42653-42659.
RIS |
Cite this
RIS Copy
TY - JOUR
DO - 10.1021/acsami.0c08261
UR - https://doi.org/10.1021/acsami.0c08261
TI - Stable and Flexible Sulfide Composite Electrolyte for High-Performance Solid-State Lithium Batteries
T2 - ACS applied materials & interfaces
AU - Thapa, Arjun
AU - Ming Ng, Ka
AU - Jasinski, Jacek B.
AU - Sunkara, Mahendra
AU - Druffel, Thad
AU - Wang, Hui
AU - Arnold, William
AU - Sumanasekera, Gamini
PY - 2020
DA - 2020/08/26 00:00:00
PB - American Chemical Society (ACS)
SP - 42653-42659
IS - 38
VL - 12
SN - 1944-8244
SN - 1944-8252
ER -
BibTex |
Cite this
BibTex Copy
@article{2020_Ming Ng,
author = {Arjun Thapa and Ka Ming Ng and Jacek B. Jasinski and Mahendra Sunkara and Thad Druffel and Hui Wang and William Arnold and Gamini Sumanasekera},
title = {Stable and Flexible Sulfide Composite Electrolyte for High-Performance Solid-State Lithium Batteries},
journal = {ACS applied materials & interfaces},
year = {2020},
volume = {12},
publisher = {American Chemical Society (ACS)},
month = {aug},
url = {https://doi.org/10.1021/acsami.0c08261},
number = {38},
pages = {42653--42659},
doi = {10.1021/acsami.0c08261}
}
MLA
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MLA Copy
Ming Ng, Ka, et al. “Stable and Flexible Sulfide Composite Electrolyte for High-Performance Solid-State Lithium Batteries.” ACS applied materials & interfaces, vol. 12, no. 38, Aug. 2020, pp. 42653-42659. https://doi.org/10.1021/acsami.0c08261.
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