ACS applied materials & interfaces, volume 13, issue 33, pages 39271-39281

Electrochemically-Matched and Nonflammable Janus Solid Electrolyte for Lithium–Metal Batteries

Cheng Li 1, 2
Guohua Liu 1, 2
Kai Wang 1, 2
Wei Dong 1, 2
Jinlong Han 1
Yang Yu 1
Zhiwen Min 1
Chunlei Yang 1
Publication typeJournal Article
Publication date2021-08-10
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor9.5
ISSN19448244, 19448252
General Materials Science
Abstract
Solid-state batteries based on ceramic electrolytes are promising alternatives to lithium-ion batteries with better safety and energy density. While solid electrolytes such as the garnet-type Li7La3Zr2O12 (LLZO) are chemically stable with lithium metal, their rigidity leads to poor interfacial contact with the cathodes. Nonflammable organic phosphates, however, are characterized by a liquid nature and can immerse the conventional porous cathodes to form a good contact. However, the phosphates are unstable with lithium metal anodes. We design a quasi-solid Janus electrolyte based on the ceramic LLZO and a trimethyl phosphate (TMP) gel which combines the best of both worlds. The electrochemical window of the Janus electrolyte is significantly extended compared with the TMP to accommodate the lithium metal anode. The contact between the cathode and the electrolyte is maintained by the semifluid nature of the TMP gel. A lithium-metal battery with such a Janus electrolyte can stably cycle at room temperature at 1C while still retaining a capacity of 115 mAh g-1 over 100 times. In contrast, the batteries based on LLZO and TMP individually cannot function properly. More importantly, despite the quasi-solid nature, the battery does not contain flammable functional parts and can alleviate the safety concerns of current batteries containing organic-type electrolytes. This work provides a simple but effective strategy for safe, inexpensive, and energy-dense solid-state batteries.

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Li C. et al. Electrochemically-Matched and Nonflammable Janus Solid Electrolyte for Lithium–Metal Batteries // ACS applied materials & interfaces. 2021. Vol. 13. No. 33. pp. 39271-39281.
GOST all authors (up to 50) Copy
Li C., Liu G., Wang K., Dong W., Han J., Yu Y., Min Z., Yang C., Lu Z. Electrochemically-Matched and Nonflammable Janus Solid Electrolyte for Lithium–Metal Batteries // ACS applied materials & interfaces. 2021. Vol. 13. No. 33. pp. 39271-39281.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1021/acsami.1c08687
UR - https://doi.org/10.1021/acsami.1c08687
TI - Electrochemically-Matched and Nonflammable Janus Solid Electrolyte for Lithium–Metal Batteries
T2 - ACS applied materials & interfaces
AU - Liu, Guohua
AU - Han, Jinlong
AU - Min, Zhiwen
AU - Lu, Ziheng
AU - Li, Cheng
AU - Wang, Kai
AU - Dong, Wei
AU - Yu, Yang
AU - Yang, Chunlei
PY - 2021
DA - 2021/08/10 00:00:00
PB - American Chemical Society (ACS)
SP - 39271-39281
IS - 33
VL - 13
SN - 1944-8244
SN - 1944-8252
ER -
BibTex |
Cite this
BibTex Copy
@article{2021_Li,
author = {Guohua Liu and Jinlong Han and Zhiwen Min and Ziheng Lu and Cheng Li and Kai Wang and Wei Dong and Yang Yu and Chunlei Yang},
title = {Electrochemically-Matched and Nonflammable Janus Solid Electrolyte for Lithium–Metal Batteries},
journal = {ACS applied materials & interfaces},
year = {2021},
volume = {13},
publisher = {American Chemical Society (ACS)},
month = {aug},
url = {https://doi.org/10.1021/acsami.1c08687},
number = {33},
pages = {39271--39281},
doi = {10.1021/acsami.1c08687}
}
MLA
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MLA Copy
Li, Cheng, et al. “Electrochemically-Matched and Nonflammable Janus Solid Electrolyte for Lithium–Metal Batteries.” ACS applied materials & interfaces, vol. 13, no. 33, Aug. 2021, pp. 39271-39281. https://doi.org/10.1021/acsami.1c08687.
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