Nanostructured anode material for Li-ion batteries
- Autori: Ferrara, G; Arbizzani, C; Damen, L; Inguanta, R; Piazza, S; Sunseri, C; Mastragostino, M
- Anno di pubblicazione: 2010
- Tipologia: Capitolo o Saggio
- Parole Chiave: SnCo alloy, template electrosynthesis, alumina membrane, anode, lithium ion batteries, electrochemical characterization
- OA Link: http://hdl.handle.net/10447/55795
Abstract
The present paper focuses on a nanostructured SnCo alloy electrochemically prepared by template method in view of its use as anode material alternative to graphite in lithium-ion batteries. The fabrication of SnCo nanowire arrays was carried out by potentiostatic co-deposition of the two metals by using nanostructured anodic alumina membranes as template. Electrochemical tests on lithiation-delithiation of these SnCo electrodes in conventional organic electrolyte (EC:DMC LiPF6) at 30°C showed that their specific capacity was stable for about the first 12 cycles at a value near to the theoretical one for Li22Sn5 and, hence, progressively decayed.