Nano Energy, volume 101, pages 107603

A facile and low-cost wet-chemistry artificial interface engineering for garnet-based solid-state Li metal batteries

Publication typeJournal Article
Publication date2022-10-01
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
Solid-state lithium metal batteries (SSLMBs) have been widely predicted as an “enabler” for the next-generation high-energy-density batteries. To perform this goal, both solid electrolytes (SEs) and metallic Li anodes are the keys. Li-rich garnet SEs exhibit many unique advantages for enabling SSLMBs, such as high Li-ion conductivity, superior mechanical, chemical and electrochemical properties. However, the garnet-based SSLMBs suffer from intractable interfacial problems including poor-contact-induced high interfacial impedance and dendrite-induced fast short circuit, which greatly hinder their practical application. In this work, a facile and low-cost artificial interface engineering is proposed to improve Li/SEs interface. Benefitted from the superior wettability of isopropanol InCl 3 solution on the Li 6.4 La 3 Zr 1.4 Ta 0.6 O 12 (LLZTO) surface, a homogeneous and tightly-adhering lithiophilic interface consisting of InLi x and LiCl is efficiently constructed. As a result, the interface impedance was decreased from 189 to 10 Ω, and the critical current density for the LLZTO is increased from 0.2 mA cm −2 to 0.7 mA cm −2 . The Li/Li symmetric cells can work stably above 4000 h at a current density of 0.2 mA cm −2 . At a higher current density of 0.45 mA cm −2 , no obvious dendritic Li proliferation and interfacial contact failure is observed after cycling for more than 1000 h. The full cells with LiFePO 4 as cathode exhibit a superior electrochemical performance with a reversible capacity of 127 mAh g −1 at 0.5 C after 475 cycles, and a rate capability of 101 mAh g −1 at 1 C. This effective, simple and economical wet-chemistry strategy for constructing Li/SEs artificial interface may provide an alternative route for solve the interfacial issues of other SSLMBs. • A facile and low-cost wet-chemistry enables robust Li/LLZTO artificial interface. • The keys for this wet-chemistry strategy: solvent, active solute and H 2 O content. • The InCl 3 -induced modification layer significantly improve cells’ performance. • This adaptable technique may be applicable to other solid Li metal batteries.

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Leng J. et al. A facile and low-cost wet-chemistry artificial interface engineering for garnet-based solid-state Li metal batteries // Nano Energy. 2022. Vol. 101. p. 107603.
GOST all authors (up to 50) Copy
Leng J., Liang H., Wang H., Xiao Z., WANG S., Zhang Z., Tang Z. A facile and low-cost wet-chemistry artificial interface engineering for garnet-based solid-state Li metal batteries // Nano Energy. 2022. Vol. 101. p. 107603.
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RIS Copy
TY - JOUR
DO - 10.1016/j.nanoen.2022.107603
UR - https://doi.org/10.1016/j.nanoen.2022.107603
TI - A facile and low-cost wet-chemistry artificial interface engineering for garnet-based solid-state Li metal batteries
T2 - Nano Energy
AU - Leng, Jin
AU - Liang, Hong
AU - Wang, Huaying
AU - Xiao, Zunqiu
AU - WANG, SHITONG
AU - Zhang, Zhongtai
AU - Tang, Zilong
PY - 2022
DA - 2022/10/01 00:00:00
PB - Elsevier
SP - 107603
VL - 101
SN - 2211-2855
ER -
BibTex
Cite this
BibTex Copy
@article{2022_Leng,
author = {Jin Leng and Hong Liang and Huaying Wang and Zunqiu Xiao and SHITONG WANG and Zhongtai Zhang and Zilong Tang},
title = {A facile and low-cost wet-chemistry artificial interface engineering for garnet-based solid-state Li metal batteries},
journal = {Nano Energy},
year = {2022},
volume = {101},
publisher = {Elsevier},
month = {oct},
url = {https://doi.org/10.1016/j.nanoen.2022.107603},
pages = {107603},
doi = {10.1016/j.nanoen.2022.107603}
}
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