Abstract
Nanoporous spherical Li1.95Na0.05FeSiO4/C and Li2FeSiO4/C composites have been synthesized through a spray drying-assisted method. The effect of Na doping on the physicochemical properties of Li2FeSiO4 is extensively investigated by X-ray diffraction, scanning electron microscopy, transmission electron microscope, AC impedance spectroscopy, four-point measurement and galvanostatic charge-discharge testing. It is found that Li1.95Na0.05FeSiO4/C composite exhibits superior rate capability and cycling stability. Remarkably, even rate increases to 10C, a high discharge capacity of 110mAhg−1 is obtained, and 97.8% of its initial value is retained after 100 cycles at 2C. The excellent electrochemical properties were mainly attributed to enhancement of electronic conductivity and reduction of charge transfer resistance.
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.
