RT Journal Article
T1 On the preparation of multifunctional conversion coatings of FePO4/LiFePO4
A1 Valverde Perez, Sara
A1 Figueroa Martínez, Raúl
A1 Nóvoa Rodríguez, Xosé Ramón
A1 Ramirez Rico, Divino Salvador
A1 Vivier, Vincent
K1 3303 Ingeniería y Tecnología Químicas
AB This research aims to take advantage of the properties of phosphate coatings to overcome the problems inherent in using LiFePO4 as a powder. LiFePO4 coatings have been prepared on iron sheets using cyclic voltammetry in an aqueous solution of H3PO4 and LiOH. The voltammograms evolved from the initial active-passive behaviour, typical for iron in H3PO4 solution, to a reversible redox behaviour upon cycling. The resulting coating was characterised morphologically (via SEM and optical microscopies), chemically (via XPS) and electrochemically (via EIS and SECM). The results showed a two-layered coating (a porous outer layer and a compact inner layer) with the behaviour of a porous electrode that reversibly exchanges Li+ ions with the environment and reduces the emission of ionic species (Fe2+, Fe3+) as its thickness increases.
PB Surface and Coatings Technology
SN 02578972
YR 2024
FD 2024-03-15
LK http://hdl.handle.net/11093/6397
UL http://hdl.handle.net/11093/6397
LA eng
NO Surface and Coatings Technology, 479, 130548 (2024)
NO Universidade de Vigo/CISUG
DS Investigo
RD 18-sep-2024