Towards lithium-free solid-state batteries with nanoscale Ag/Cu sputtered bilayer electrodes

Lorenzo Fallarino; Uzair Naveed Chishti; Arianna Pesce; Grazia Accardo; Amna Rafique; Montserrat Casas-Cabanas; Pedro López-Aranguren

doi:10.1039/d3cc02942e

Towards lithium-free solid-state batteries with nanoscale Ag/Cu sputtered bilayer electrodes

Chem Commun (Camb). 2023 Oct 12;59(82):12346-12349. doi: 10.1039/d3cc02942e.

Authors

Lorenzo Fallarino¹, Uzair Naveed Chishti¹, Arianna Pesce¹, Grazia Accardo¹, Amna Rafique^{1

2

3}, Montserrat Casas-Cabanas^{1

4}, Pedro López-Aranguren¹

Affiliations

¹ Centre for Cooperative Research on Alternative Energies (CIC energiGUNE), Basque Research and Technology Alliance (BRTA), Alava Technology Park, Albert Einstein 48, Vitoria-Gasteiz 01510, Spain. plopez@cicenergigune.com.
² University of Basque Country (UPV/EHU), Barrio Sarriena, s/n, Leioa 48940, Spain.
³ ALISTORE-European Research Institute, Hub de l'Energie, FR CNRS 3104, 15 rue Baudelocque, 80039 Amiens, France.
⁴ Ikerbasque, The Basque Foundation for Science, Plaza Euskadi 5, Bilbao 48009, Spain.

PMID: 37767913
DOI: 10.1039/d3cc02942e

Abstract

Enhancing the reversible Li growth efficiency in "Li-free" solid-state batteries is key for the deployment of this technology. Here, we demonstrate a nanoscale material design path that enables the reversible cycling of a lithium-free solid-state battery, using Li₇La₃Zr₂O₁₂ (LLZO) electrolyte. By means of nanometric Ag-Cu bilayers, directly sputtered onto the LLZO, we can effectively control Li deposition. The robust thin film bilayer, which is compatible with LLZO, enables stable cycling, accommodating the volume changes without the need for extra external pressure.