Efficient Construction of a C60 Interlayer for Mechanically Robust, Dendrite-free, and Ultrastable Solid-State Batteries
Author ORCID Identifier
Publication Title
iScience
E-ISSN
44105
Document Type
Article
Abstract
Interfacial instability between solid electrolytes (SEs) and lithium metal remains a daunting challenge for solid-sate batteries. Here, a conformal C60 interlayer is efficiently constructed on Li1.5Al0.5Ge1.5(PO4)3 (LAGP) SEs by physical vapor deposition, and an ideal interfacial contact is achieved via forming an ionically conducting matrix of LixC60 with lithium metal. The obtained LixC60 is beneficial to hinder the growth of lithium dendrites at interface and release the local stress during the lithiation and delithiation. As a result, the Li/LAGP-C60/Li symmetric cells demonstrate ultra-stable cycling performance for more than 4,500 h at a current density of 0.034 mA cm−2. The Li/LAGP-C60/LiFePO4 full cells deliver a reversible capacity of 152.4 mAh g−1 at room temperature, and the capacity retention rate is 85% after more than 100 cycles. This work provides a feasible and scalable strategy to improve the SEs/Li interface for high-performance solid-state batteries.
Publication Date
10-23-2020
DOI
10.1016/j.isci.2020.101636
Keywords
Energy Materials, Energy Storage, Energy Systems
Recommended Citation
Li, Zhenlong; Zhang, Siwei; Qian, Kun; Nie, Pengbo; Chen, Shuxiao; Zhang, Xuan; Li, Baohua; Li, Tao; Wei, Guodan; and Kang, Feiyu, "Efficient Construction of a C60 Interlayer for Mechanically Robust, Dendrite-free, and Ultrastable Solid-State Batteries" (2020). NIU Bibliography. 424.
https://huskiecommons.lib.niu.edu/niubib/424
Department
Department of Chemistry and Biochemistry
