Abstract
Rechargeable lithium ion batteries with aqueous electrolyte are low-cost, safe, and environmental friendly compared with organic electrolyte. Lithium iron phosphate (LiFePO4) is a potential candidate as the cathode for aqueous rechargeable lithium batteries (ARLBs), due to its excellent electrochemical window, stable structure and high theoretical capacity. However, the poor electronic conductivity and low lithium ion diffusion rate in bulk considerably restrict the electrochemical performance of LiFePO4. Herein, LiFePO4/C composites were successfully prepared by a facile sol-gel approach. Physical and electrochemical properties of the LiFePO4/C composites as cathode material in aqueous electrolyte were investigated. The LiFePO4/C composites exhibit a high reversible capacity of 163.5 mAh g−1 at 0.1C. Moreover, LiFePO4/C shows excellent rate capability and cycling capability. The improved electrochemical performance could be attributed to the positive effects of homogenous conductive carbon, which ensures the nanoscale Li-ion diffusion path and continuous electrical contact in bulk electrode.
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.
