Abstract
The paper presents a comparative study of the characteristics of lithium iron phosphate positive electrodes with various types of commercially available carbon nanotubes – single-walled (SWCNT), double-walled (DWCNT) and multi-walled (MWCNT). Electrochemical characteristics of the cathode materials were investigated using electrochemical impedance spectroscopy and galvanostatic charge/discharge measurements. Cyclic stability at various current densities was estimated. The best electrochemical characteristics are exhibited by cathode materials with SWCNT (advantage over DWCNT at discharge rates higher than 10C) and DWCNT (advantage over SWCNT during prolonged cycling). During cycling at a current density of 1C, the greatest loss of capacity was demonstrated by the MWCNT-based electrode. At the same time, the electrodes with SWCNT and DWCNT demonstrated satisfactory capacity retention after 50 charge/discharge cycles: over 94 and over 98%, respectively.
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 callMore From: Доклады Российской академии наук. Химия, науки о материалах
Disclaimer: 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.
