Abstract
A new two-step solid-state process was developed for synthesis of a pure phase 4.7 V LiMn 1.5Ni 0.5O 4− δ (LMNO) spinel of good electrochemical properties. This process which was based on formation of stable Ni 1− x Mn 2O 4− δ ( x ≤ 0.33) spinel followed by subsequent lithiation, demonstrated the emerging of LiMn 1.5Ni 0.5O 4− δ frame work at temperatures of as low as 350 °C. During this lithiation process, migration of metal ions (Ni/Mn) from partially occupied tetrahedral 8a sites (in Ni 0.67Mn 2O 4− δ ) toward octahedral 16d site occurred. The resultant spinel material displayed low irreversible loss, a 97% columbic efficiency and 6% loss in discharge capacity after 100 cycles at 60 °C.
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.
