Nano Energy, volume 91, pages 106643

A fast and low-cost interface modification method to achieve high-performance garnet-based solid-state lithium metal batteries

Publication typeJournal Article
Publication date2022-01-01
Journal: Nano Energy
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor17.6
ISSN22112855
General Materials Science
Electrical and Electronic Engineering
Renewable Energy, Sustainability and the Environment
Abstract
Garnet-based solid-state lithium metal batteries (SSLMBs) are considered to be the candidate power sources for electric vehicles and large-scale energy storage systems due to their high energy density, wide operating temperature and high safety. However, poor wettability of garnet/Li metal anode interface, large interfacial impedance and penetrating lithium dendrite growth during cycling limit the practical application of SSLMBs. In this paper, SnS 2 ultra-thin film is fabricated on the surface of solid-state Li 6.75 La 3 Zr 1.75 Ta 0.25 O 12 (LLZTO) electrolyte by a rapid (ca. 5 min) liquid-phase deposition method. Then, a Li 2 S/Li x Sn mixed ionic/electronic conductive layer is in-situ constructed through the conversion reaction between molten Li and SnS 2 . This mixed conductive layer can significantly reduce interfacial impedance, ensure intimate contact at the Li/garnet interface and inhibit growth of lithium dendrites. Thus, the resulting Li symmetric cell with Li 2 S/Li x Sn modification layer exhibits a low interface resistance of 47 Ω cm 2 and a long lifespan over 1000 cycles. Moreover, using this Li/garnet interface, the full cell assembled with LiFePO 4 cathode shows both excellent cycling and rate performance. These results demonstrate the feasibility of the proposed modification strategy for solid-state garnet electrolyte, and pave the way for the development of high-performance solid-state batteries. A mixed ionic/electronic conductive Li 2 S/Li x Sn layer is in-situ constructed through the conversion reaction between molten Li and SnS 2 . Li 2 S has a wide band gap which can prevent electron attack on LLZTO electrolyte. The Li x Sn alloy not only guides a homogeneous electronic distribution but also serves as a lithiophilic material to make an intimate LLZTO/Li contact at the interface. • SnS 2 nanosheets are coated on LLZTO surface via a fast liquid deposition for interficial modification. • A mixed ionic/electronic conductive Li 2 S/Li x Sn layer is in-situ formed at LLZTO/Li interface. • The Li 2 S/Li x Sn layer improves wettability, decreases interfacial activation energy and prevents the electron attacking LLZTO. • Li 2 S/Li x Sn modified Li symmetric cell cycles stably over 1000 h at 0.2 mA cm −2 .

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GOST Copy
Zhao B. et al. A fast and low-cost interface modification method to achieve high-performance garnet-based solid-state lithium metal batteries // Nano Energy. 2022. Vol. 91. p. 106643.
GOST all authors (up to 50) Copy
Zhao B., Zhao B., Ma W., Li B., Li B., Hu X., Lu S., Liu X., Jiang Y., Zhang J. A fast and low-cost interface modification method to achieve high-performance garnet-based solid-state lithium metal batteries // Nano Energy. 2022. Vol. 91. p. 106643.
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RIS Copy
TY - JOUR
DO - 10.1016/j.nanoen.2021.106643
UR - https://doi.org/10.1016/j.nanoen.2021.106643
TI - A fast and low-cost interface modification method to achieve high-performance garnet-based solid-state lithium metal batteries
T2 - Nano Energy
AU - Zhao, Bing
AU - Ma, Wencheng
AU - Li, Bobo
AU - Hu, Xiongtao
AU - Lu, Shangying
AU - Zhao, Bing
AU - Li, Bo-Bo
AU - Liu, Xiaoyu
AU - Jiang, Yong
AU - Zhang, Jiujun
PY - 2022
DA - 2022/01/01 00:00:00
PB - Elsevier
SP - 106643
VL - 91
SN - 2211-2855
ER -
BibTex
Cite this
BibTex Copy
@article{2022_Zhao,
author = {Bing Zhao and Wencheng Ma and Bobo Li and Xiongtao Hu and Shangying Lu and Bing Zhao and Bo-Bo Li and Xiaoyu Liu and Yong Jiang and Jiujun Zhang},
title = {A fast and low-cost interface modification method to achieve high-performance garnet-based solid-state lithium metal batteries},
journal = {Nano Energy},
year = {2022},
volume = {91},
publisher = {Elsevier},
month = {jan},
url = {https://doi.org/10.1016/j.nanoen.2021.106643},
pages = {106643},
doi = {10.1016/j.nanoen.2021.106643}
}
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