An electron-blocking interface for garnet-based quasi-solid-state lithium-metal batteries to improve lifespan

Chang Zhang, Jiameng Yu, Yuanyuan Cui (), Yinjie Lv, Yue Zhang, Tianyi Gao, Yuxi He, Xin Chen, Tao Li, Tianquan Lin, Qixi Mi, Yi Yu and Wei Liu ()
Additional contact information
Chang Zhang: ShanghaiTech University
Jiameng Yu: ShanghaiTech University
Yuanyuan Cui: Shanghai University
Yinjie Lv: ShanghaiTech University
Yue Zhang: ShanghaiTech University
Tianyi Gao: ShanghaiTech University
Yuxi He: ShanghaiTech University
Xin Chen: ShanghaiTech University
Tao Li: Shanghai Jiao Tong University
Tianquan Lin: Shanghai Jiao Tong University
Qixi Mi: ShanghaiTech University
Yi Yu: ShanghaiTech University
Wei Liu: ShanghaiTech University

Nature Communications, 2024, vol. 15, issue 1, 1-12

Abstract: Abstract Garnet oxide is one of the most promising solid electrolytes for solid-state lithium metal batteries. However, the traditional interface modification layers cannot completely block electron migrating from the current collector to the interior of the solid-state electrolyte, which promotes the penetration of lithium dendrites. In this work, a highly electron-blocking interlayer composed of potassium fluoride (KF) is deposited on garnet oxide Li6.4La3Zr1.4Ta0.6O12 (LLZTO). After reacting with melted lithium metal, KF in-situ transforms to KF/LiF interlayer, which can block the electron leakage and inhibit lithium dendrite growth. The Li symmetric cells using the interlayer show a long cycle life of ~3000 hours at 0.2 mA cm−2 and over 350 hours at 0.5 mA cm−2 respectively. Moreover, an ionic liquid of LiTFSI in C4mim-TFSI is screened to wet the LLZTO|LiNi0.8Co0.1Mn0.1O2 (NCM) positive electrode interfaces. The Li|KF-LLZTO | NCM cells present a specific capacity of 109.3 mAh g−1, long lifespan of 3500 cycles and capacity retention of 72.5% at 25 °C and 2 C (380 mA g−1) with an average coulombic efficiency of 99.99%. This work provides a simple and integrated strategy on high-performance quasi-solid-state lithium metal batteries.

Date: 2024
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.nature.com/articles/s41467-024-49715-x Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-49715-x

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-024-49715-x

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().