Open-circuit energy band diagram for a Ag/LiMn2O4/LiPON/ZnO solid-state battery.

Autor: Martinez, Joao Francisco Trujillo, Ambriz-Vargas, Fabian, Rodríguez-Kessler, Peter Ludwig, Morales Morales, Francisco, Gámez, Alejandrina Martinez, Gomez-Yañez, Carlos
Zdroj: Journal of Materials Science: Materials in Electronics; Feb2024, Vol. 35 Issue 6, p1-11, 11p
Abstrakt: To design microelectronic devices, it is crucial to develop a new small-scale electrical power source technology. In this sense, this study reports on a novel method to design solid-state batteries for onboard technologies. The study details the fabrication of three bilayer systems (Ag/LiMn2O4, LiMn2O4/LiPON, and LiPON/ZnO) using the Magnetron sputtering deposition technique. By utilizing a SEM and XPS, it was determined that thin, uniform films composed of LiMn2O4, LiPON, ZnO, and Ag were deposited. In addition, this study presents the implementation of the Kraut method to reconstruct the open-circuit energy band diagram for an Ag/LiMn2O4/LiPON/ZnO solid-state battery. Based on the energy diagram analysis, it was discovered that the open-circuit voltage measures at 3.18 ± 0.05 eV, and the electrochemical potential window is at 4.61 ± 0.05 eV. The LMO/LiPON heterojunction creates an electronic insulating interphase layer that does not cause the solid-state electrolyte to decompose. However, the LiPON/ZnO heterojunction creates an electronic conductor interphase layer that leads to the continuous degradation of the solid-state electrolyte. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index