Abstract
Porous spherical LiMnPO4·2Li3V2(PO4)3/C composite was synthesized innovatively via spray-drying route using oxalate complex. X-ray diffraction patterns and energy dispersive X-ray results revealed that the composite was composed of LiMnPO4 and Li3V2(PO4)3. Scanning electron microscopy results revealed the porous spherical structure, and transmission electron microscopy (TEM) results exhibited that the surface of the microsphere was coated with carbon layer of about 5.1nm thickness. The mutual doping phenomenon between LiMnPO4 and Li3V2(PO4)3 was also confirmed by high resolution TEM and Fourier transform observation. Porous spherical LiMnPO4·2Li3V2(PO4)3/C delivered an initial capacity of 132.6mAhg−1 at 0.1C and noticeably enhanced high rate capacities at 1, 3 and 10C. Compared with solid spherical LiMnPO4·2Li3V2(PO4)3/C, cycle performance, high-rate performance and lithium ion intercalation performance of porous spherical LiMnPO4·2Li3V2(PO4)3/C were all significantly improved.
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.
