Abstract
Lithium cobalt oxide films were prepared on nickel plates and foam nickel by soft solution processing method. The films were characterized by chemical analysis, X-ray diffraction, scanning electron microscopy, and atomic force microscopy. It was found that growth of LiCoO 2 crystal on polished nickel plates and foam nickel led to different morphologies of LiCoO 2. A compact LiCoO 2 film was formed on smooth nickel plates while some grassy LiCoO 2 crystals formed and scattered on the surface of foam nickel, which indicates different mechanism of films growth. Formation of LiCoO 2 crystal on nickel plates shows the characteristic of two-dimensional nucleation while on foam nickel shows the characteristic of preferential nucleation. Further, increase of LiOH concentration in the soft solution results in morphological change of LiCoO 2 film from hexagonal platelets to spherical grains. In addition, the larger the current density, the less the grain size and the porosity inside grains are.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
