Journal of Membrane Science, volume 610, pages 118265

A composite solid electrolyte with a framework of vertically aligned perovskite for all-solid-state Li-metal batteries

Publication typeJournal Article
Publication date2020-09-01
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor9.5
ISSN03767388
Biochemistry
Physical and Theoretical Chemistry
General Materials Science
Filtration and Separation
Abstract
Composite solid electrolytes (CSEs), which inherit the flexibility of polymer electrolytes and the high ionic conductivity of ceramic electrolytes, hold a great potential to realize all-solid-state Li-metal batteries (ASSLMBs) with high energy density and enhanced safety. However, conventional preparation methods for CSEs by randomly dispersing ceramic particles in a polymer matrix fail to provide effective Li + conducting networks, thus severely sacrificing the high ionic conductivity of ceramic fillers. In this work, we develop a framework of vertically aligned perovskite Li 0.33 La 0.557 TiO 3 (LLTO) embedded in a PEO-LiTFSI matrix to maximize the ionic conduction. The vertically aligned LLTO structure prepared by an ice-templating method provides fast, continuous and the shortest pathways for Li + transport, thus boosting the ionic conductivity from 0.038 to 0.13 mS cm −1 . As a result, a Li | LiFePO 4 full battery assembled with the developed CSE is capable of delivering a specific discharge capacity of 144.6 mAh g −1 at 1 C at 60 °C with a high capacity retention of 96.0% after 100 cycles. • A framework of vertically aligned Li 0.33 La 0.557 TiO 3 is developed for CSEs. • The Li 0.33 La 0.557 TiO 3 framework boosts the ionic conductivity to 0.13 mS cm −1 . • An ASSLMB delivers a specific capacity of 144.6 mAh g −1 at 1 C at 60 °C.

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Liu K. et al. A composite solid electrolyte with a framework of vertically aligned perovskite for all-solid-state Li-metal batteries // Journal of Membrane Science. 2020. Vol. 610. p. 118265.
GOST all authors (up to 50) Copy
Liu K., Wu M., Wei L., Lin Y., Zhao T. A composite solid electrolyte with a framework of vertically aligned perovskite for all-solid-state Li-metal batteries // Journal of Membrane Science. 2020. Vol. 610. p. 118265.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1016/j.memsci.2020.118265
UR - https://doi.org/10.1016/j.memsci.2020.118265
TI - A composite solid electrolyte with a framework of vertically aligned perovskite for all-solid-state Li-metal batteries
T2 - Journal of Membrane Science
AU - Liu, Ke
AU - Wu, Maochun
AU - Wei, Lei
AU - Lin, Yanke
AU - Zhao, Tianshou
PY - 2020
DA - 2020/09/01 00:00:00
PB - Elsevier
SP - 118265
VL - 610
SN - 0376-7388
ER -
BibTex
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BibTex Copy
@article{2020_Liu,
author = {Ke Liu and Maochun Wu and Lei Wei and Yanke Lin and Tianshou Zhao},
title = {A composite solid electrolyte with a framework of vertically aligned perovskite for all-solid-state Li-metal batteries},
journal = {Journal of Membrane Science},
year = {2020},
volume = {610},
publisher = {Elsevier},
month = {sep},
url = {https://doi.org/10.1016/j.memsci.2020.118265},
pages = {118265},
doi = {10.1016/j.memsci.2020.118265}
}
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