Nanostructured Anode Material for Li-Ion Battery Obtained by Galvanic Process

• Published in: Chemical engineering transactions Vol. 47
• Main Authors: C. Cocchiara, R. Inguanta, S. Piazza, C. Sunseri
• Format: Journal Article
• Language: English
• Published: AIDIC Servizi S.r.l 01.05.2016
• ISSN: 2283-9216
• DOI: 10.3303/CET1647013

This work focused on the synthesis and characterization of nanostructured lead hydroxide chloride (PbOHCl) that is an innovative anode material for lithium-ion batteries (LIBs). In particular, we have obtained nanostructures of mixed PbOHCl and lead metal, directly into the pores of a commercially available alumina membrane, acting as template. The process was based on galvanic displacement reaction that was carried out in a two-compartment electrochemical cell without the use of an external power supply. This simple and cheap procedure gives regular array of Pb/PbOHCl composite nanowires. To obtain nanostructured electrodes is a significant result because, it’s well known that nanostructures have a variety of exceptional properties for Li-ion batteries applications such as high surface area, low diffusion path and good dimensional stability. This last property is fundamental because the active material of Li-ion battery are subject to very high strains due to volume change that occurs during charge/discharge cycles. In addition, the presence of lead creates a conductive network that reduces the resistivity of PbOHCl electrode.