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Aqueous Zn-ion batteries (AZIBs) represent a safe and sustainable technology among the post-lithium systems, though the poor understanding of the material behaviour at the cathode prevents the full development of efficient AZIBs. ZnMn2O4 (ZMO) has been considered one of the cathode candidates owing to its analogy to the well-established LiMn2O4 cathode for lithium-ion batteries, however its electrochemical mechanism in the presence of Zn ions in aqueous environment is unclear and still debated. In this work, we synthesised nanostructured ZMO thin films by Pulsed Laser Deposition (PLD) and we evaluated, through extensive characterization by microscopic, spectroscopic, and diffraction techniques, how the deposition and annealing conditions affect the film properties. The self-supported nature and the high degree of control down to the nanoscale make a thin film an ideal model system to study the …
Publication date: 
16 Jan 2023

Andrea Macrelli, Marco Olivieri, Alessio Lamperti, Valeria Russo, Benedetto Bozzini, Marco Menegazzo, Gianlorenzo Bussetti, Carlo S Casari, Andrea Li Bassi

Biblio References: 
Pages: 141909
Electrochimica Acta