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.
Nanostructured anode material for Li-ion batteries / G. Ferrara; C. Arbizzani; L. Damen; R. Inguanta; S. Piazza; C. Sunseri; M. Mastragostino. - ELETTRONICO. - 72:(2010), pp. 320-324. (Intervento presentato al convegno CIMTEC - 5th Forum on New Materials tenutosi a Montecatini nel 13-18/06/10).
Nanostructured anode material for Li-ion batteries
ARBIZZANI, CATIA;DAMEN, LIBERO;MASTRAGOSTINO, MARINA
2010
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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
