ACS applied materials & interfaces, volume 10, issue 4, pages 4113-4120

New Insights into the Compositional Dependence of Li-Ion Transport in Polymer–Ceramic Composite Electrolytes

Jin Zheng 1
Yan-Yan HU 1, 2
2
 
Center of Interdisciplinary Magnetic Resonance, National High Magnetic Field Laboratory, Tallahassee, Florida 32310, United States
Publication typeJournal Article
Publication date2018-01-16
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor9.5
ISSN19448244, 19448252
General Materials Science
Abstract
Composite electrolytes are widely studied for their potential in realizing improved ionic conductivity and electrochemical stability. Understanding the complex mechanisms of ion transport within composites is critical for effectively designing high-performance solid electrolytes. This study examines the compositional dependence of the three determining factors for ionic conductivity, including ion mobility, ion transport pathways, and active ion concentration. The results show that with increase in the fraction of ceramic Li7La3Zr2O12 (LLZO) phase in the LLZO-poly(ethylene oxide) composites, ion mobility decreases, ion transport pathways transit from polymer to ceramic routes, and the active ion concentration increases. These changes in ion mobility, transport pathways, and concentration collectively explain the observed trend of ionic conductivity in composite electrolytes. Liquid additives alter ion transport pathways and increase ion mobility, thus enhancing ionic conductivity significantly. It is also found that a higher content of LLZO leads to improved electrochemical stability of composite electrolytes. This study provides insight into the recurring observations of compositional dependence of ionic conductivity in current composite electrolytes and pinpoints the intrinsic limitations of composite electrolytes in achieving fast ion conduction.

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GOST |
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GOST Copy
Zheng J., HU Y. New Insights into the Compositional Dependence of Li-Ion Transport in Polymer–Ceramic Composite Electrolytes // ACS applied materials & interfaces. 2018. Vol. 10. No. 4. pp. 4113-4120.
GOST all authors (up to 50) Copy
Zheng J., HU Y. New Insights into the Compositional Dependence of Li-Ion Transport in Polymer–Ceramic Composite Electrolytes // ACS applied materials & interfaces. 2018. Vol. 10. No. 4. pp. 4113-4120.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1021/acsami.7b17301
UR - https://doi.org/10.1021/acsami.7b17301
TI - New Insights into the Compositional Dependence of Li-Ion Transport in Polymer–Ceramic Composite Electrolytes
T2 - ACS applied materials & interfaces
AU - Zheng, Jin
AU - HU, Yan-Yan
PY - 2018
DA - 2018/01/16 00:00:00
PB - American Chemical Society (ACS)
SP - 4113-4120
IS - 4
VL - 10
SN - 1944-8244
SN - 1944-8252
ER -
BibTex |
Cite this
BibTex Copy
@article{2018_Zheng,
author = {Jin Zheng and Yan-Yan HU},
title = {New Insights into the Compositional Dependence of Li-Ion Transport in Polymer–Ceramic Composite Electrolytes},
journal = {ACS applied materials & interfaces},
year = {2018},
volume = {10},
publisher = {American Chemical Society (ACS)},
month = {jan},
url = {https://doi.org/10.1021/acsami.7b17301},
number = {4},
pages = {4113--4120},
doi = {10.1021/acsami.7b17301}
}
MLA
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MLA Copy
Zheng, Jin, et al. “New Insights into the Compositional Dependence of Li-Ion Transport in Polymer–Ceramic Composite Electrolytes.” ACS applied materials & interfaces, vol. 10, no. 4, Jan. 2018, pp. 4113-4120. https://doi.org/10.1021/acsami.7b17301.
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