Journal Article

FZJ-2020-02589

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Design of a mixed conductive garnet/Li interface for dendrite-free solid lithium metal batteries

Huo, H. ; Chen, Y. ; Li, R. ; Zhao, N. ; Luo, J. ; Pereira da Silva, J. G.FZJ* ; Mücke, R.FZJ* ; Kaghazchi, P.FZJ* ; Guo, X. (Corresponding author) ; Sun, X. (Corresponding author)

2020
RSC Publ. Cambridge

This record in other databases:    

Please use a persistent id in citations: http://hdl.handle.net/2128/25595  doi:10.1039/C9EE01903K

Abstract: Solid-state batteries (SSBs) with metallic lithium (Li) anodes and nonflammable solid-state electrolytes (SSEs) are viewed as the next-generation batteries because of their potential improvement in energy density and guarantee of safety. However, even though the high-density solid garnet SSE pellets exhibit high ionic conductivity, high transference number, and large shear modulus, the unexpectedly serious occurrence of dendrite propagation remains a problem. Herein, a mixed conductive layer (MCL) consisting of electron-conductive nanoparticles embedded in an ion-conductive network is introduced at the interface between the garnet SSE and the Li anode. Such MCL not only leads to the transition from lithiophobicity to lithiophilicity, but also homogenizes the electric-field distribution inside the MCL and relieves the electronic attacks to the garnet. As a result, the Li/MCL/garnet/MCL/Li cells show a critical current density as high as 1.2 mA cm−2 and stable cycling for over 1000 h at 0.1 mA cm−2. The LiCoO2/Li cells with the MCL-protected interface show excellent cycling and rate performance at room temperature. These results demonstrate a rational design for a stable garnet/Li interface and an effective strategy to enable Li metal anodes in SSBs.

---

Contributing Institute(s):

1. Werkstoffsynthese und Herstellungsverfahren (IEK-1)

Research Program(s):

1. 131 - Electrochemical Storage (POF3-131) (POF3-131)

Appears in the scientific report 2020

---

Database coverage:
; ; Allianz-Lizenz / DFG ; Clarivate Analytics Master Journal List ; Current Contents - Agriculture, Biology and Environmental Sciences ; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; Essential Science Indicators ; IF >= 30 ; JCR ; NCBI Molecular Biology Database ; National-Konsortium ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Web of Science Core Collection

---