ACS applied materials & interfaces, volume 11, issue 50, pages 46930-46937

Polyoxyethylene (PEO)|PEO–Perovskite|PEO Composite Electrolyte for All-Solid-State Lithium Metal Batteries

Publication typeJournal Article
Publication date2019-11-25
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor9.5
ISSN19448244, 19448252
General Materials Science
Abstract
Composite solid electrolytes (CSEs) are regarded as one of the most promising candidates for all-solid-state lithium metal batteries (ASSLMBs) due to inherited desirable features from both ceramic and polymer materials. However, poor interfacial contact/compatibility between the electrodes and solid electrolytes remains a critical challenge. In this work, we prepare a flexible CSE composed of polyoxyethylene (PEO)-perovskite composite with a layer of PEO on either side. This PEO|PEO-perovskite|PEO structure prevents direct contact between the perovskite and lithium metal at the anode side, avoiding the undesired reaction between the two materials (Ti4+ + Li → Ti3+ + Li+). Moreover, the design incorporating the PEO surface on either side enables superb contact between the electrolyte and the electrodes and buffers the change in electrolyte volume from the cathode and lithium metal during repeated cycling, resulting in low interfacial resistances and excellent cycling stability. Meanwhile, perovskite inorganic electrolyte Li0.33La0.557TiO3 (LLTO) 3D nanofiber networks formed by electrospinning enable the CSE to achieve enhanced mechanical strength and high ionic conductivity of 0.16 mS cm-1 at 24 °C. As a result, a Li|PEO-LiTFSI-LLTO|Li symmetric cell remains stable after 400 h of operation without short-circuiting. Most notably, a Li|PEO-LiTFSI-LLTO|LiFePO4 full battery is capable of delivering a high capacity of 135.0 mAh g-1 even at 2 C with a retention rate of 79.0% after 300 cycles at 60 °C. These results demonstrate that the integrated sandwich structure proposed in this work is effective in developing high-performance composite solid electrolytes for ASSLMBs.

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GOST |
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GOST Copy
Liu K. et al. Polyoxyethylene (PEO)|PEO–Perovskite|PEO Composite Electrolyte for All-Solid-State Lithium Metal Batteries // ACS applied materials & interfaces. 2019. Vol. 11. No. 50. pp. 46930-46937.
GOST all authors (up to 50) Copy
Liu K., Zhang R., Sun J., Wu M., Zhao T. Polyoxyethylene (PEO)|PEO–Perovskite|PEO Composite Electrolyte for All-Solid-State Lithium Metal Batteries // ACS applied materials & interfaces. 2019. Vol. 11. No. 50. pp. 46930-46937.
RIS |
Cite this
RIS Copy
TY - JOUR
DO - 10.1021/acsami.9b16936
UR - https://doi.org/10.1021/acsami.9b16936
TI - Polyoxyethylene (PEO)|PEO–Perovskite|PEO Composite Electrolyte for All-Solid-State Lithium Metal Batteries
T2 - ACS applied materials & interfaces
AU - Zhang, Ruihan
AU - Wu, Maochun
AU - Zhao, Tianshou
AU - Liu, Ke
AU - Sun, Jing
PY - 2019
DA - 2019/11/25 00:00:00
PB - American Chemical Society (ACS)
SP - 46930-46937
IS - 50
VL - 11
SN - 1944-8244
SN - 1944-8252
ER -
BibTex |
Cite this
BibTex Copy
@article{2019_Liu,
author = {Ruihan Zhang and Maochun Wu and Tianshou Zhao and Ke Liu and Jing Sun},
title = {Polyoxyethylene (PEO)|PEO–Perovskite|PEO Composite Electrolyte for All-Solid-State Lithium Metal Batteries},
journal = {ACS applied materials & interfaces},
year = {2019},
volume = {11},
publisher = {American Chemical Society (ACS)},
month = {nov},
url = {https://doi.org/10.1021/acsami.9b16936},
number = {50},
pages = {46930--46937},
doi = {10.1021/acsami.9b16936}
}
MLA
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MLA Copy
Liu, Ke, et al. “Polyoxyethylene (PEO)|PEO–Perovskite|PEO Composite Electrolyte for All-Solid-State Lithium Metal Batteries.” ACS applied materials & interfaces, vol. 11, no. 50, Nov. 2019, pp. 46930-46937. https://doi.org/10.1021/acsami.9b16936.
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