Abstract
Cu-substituted Na0.44Mn0.6Ni0.3Cu0.1O2 has been successfully synthesized via a sol-gel method. The effect of Cu-substitution in structure on electrochemical performance, structure and morphology, Na ion diffusion coefficient and battery internal resistance has been studied. Electrochemical testing shows the substitution of Cu has obviously improved the cycle performance of Na0.44Mn0.6Ni0.3Cu0.1O2 electrode. Rietveld refinement results confirm that the introduction of copper retains the P2-type structure and enlarges lattice parameters. The kinetic analysis reveals that Cu-substitution electrode exhibits higher Na+ diffusion coefficients and smaller cell internal resistance as compared to the pristine sample due to the larger atomic radius of Cu2+. In summary, the substitution of copper has a significant effect on increasing the cell and enhancing the migration of sodium ions.
Sign-in/Register to access full text options 
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.
