Nano Research, volume 15, issue 8, pages 7180-7189

Constructing stable Li-solid electrolyte interphase to achieve dendrites-free solid-state battery: A nano-interlayer/Li pre-reduction strategy

Publication typeJournal Article
Publication date2022-05-19
Journal: Nano Research
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor9.9
ISSN19980124, 19980000
Atomic and Molecular Physics, and Optics
Condensed Matter Physics
General Materials Science
Electrical and Electronic Engineering
Abstract
Solid-state batteries based on Li and nonflammable solid-state electrolytes (SSEs) have aroused the attention of numerous researchers because of their absolute safety and potentially high energy density. Most SSEs after coming into contact with Li are reduced, which leads to high interfacial charge-transfer impedance and dendrites formation. In this study, an “interlayer-Li pre-reduction strategy” was proposed to solve the above problem of reduction. An intermediate layer was introduced between solid electrolyte and Li, and it reacted with Li to produce a stable and ion-conductive interphase. Cubic garnet-type Nb-doped Li7La3Zr2O12 (Nb-LLZO) was selected as an example solid electrolyte since it is characterized by high ionic conductivity, feasible preparation under ambient conditions, as well as low cost. The high impedance arising from the reduction at the Nb-LLZO∣Li interface has limited its application. In this paper, a nano-scale Li phosphorus oxynitride (LiPON) layer was deposited on the Nb-LLZO pellets through radio frequency (RF) magnetron sputtering, which pre-reacted with Li in-situ to produce a lithiophilic, electronically insulating, and ionic conductive interphase. The produced interphase significantly inhibited the reduction of Nb5+ against Li and the formation and propagation of Li dendrites. It is noteworthy that Li∣LiPON∣Nb-LLZO∣LiPON∣Li cells stably cycled for over 2,000 h without any short circuit. This study emphasizes and demonstrates the significance of the pre-conversion of modification layer between unstable SSE and Li metal to improve interfacial stability.

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Niu Y. et al. Constructing stable Li-solid electrolyte interphase to achieve dendrites-free solid-state battery: A nano-interlayer/Li pre-reduction strategy // Nano Research. 2022. Vol. 15. No. 8. pp. 7180-7189.
GOST all authors (up to 50) Copy
Niu Y., Yu Z., Zhou Y., Tang J., Maoxin L., Zhuang Z., Yang Y., Huang X., Tian B. Constructing stable Li-solid electrolyte interphase to achieve dendrites-free solid-state battery: A nano-interlayer/Li pre-reduction strategy // Nano Research. 2022. Vol. 15. No. 8. pp. 7180-7189.
RIS |
Cite this
RIS Copy
TY - JOUR
DO - 10.1007/s12274-022-4362-y
UR - https://doi.org/10.1007/s12274-022-4362-y
TI - Constructing stable Li-solid electrolyte interphase to achieve dendrites-free solid-state battery: A nano-interlayer/Li pre-reduction strategy
T2 - Nano Research
AU - Niu, Yajun
AU - Yu, Zhaozhe
AU - Zhou, Yongjian
AU - Tang, Jiawen
AU - Maoxin, Li
AU - Zhuang, Zechao
AU - Yang, Yan
AU - Huang, Xiao
AU - Tian, Bingbing
PY - 2022
DA - 2022/05/19 00:00:00
PB - Springer Nature
SP - 7180-7189
IS - 8
VL - 15
SN - 1998-0124
SN - 1998-0000
ER -
BibTex |
Cite this
BibTex Copy
@article{2022_Niu,
author = {Yajun Niu and Zhaozhe Yu and Yongjian Zhou and Jiawen Tang and Li Maoxin and Zechao Zhuang and Yan Yang and Xiao Huang and Bingbing Tian},
title = {Constructing stable Li-solid electrolyte interphase to achieve dendrites-free solid-state battery: A nano-interlayer/Li pre-reduction strategy},
journal = {Nano Research},
year = {2022},
volume = {15},
publisher = {Springer Nature},
month = {may},
url = {https://doi.org/10.1007/s12274-022-4362-y},
number = {8},
pages = {7180--7189},
doi = {10.1007/s12274-022-4362-y}
}
MLA
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Niu, Yajun, et al. “Constructing stable Li-solid electrolyte interphase to achieve dendrites-free solid-state battery: A nano-interlayer/Li pre-reduction strategy.” Nano Research, vol. 15, no. 8, May. 2022, pp. 7180-7189. https://doi.org/10.1007/s12274-022-4362-y.
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