Abstract
The LiMn 2 O 4 graphene hybrid cathode material has been synthesized by spray drying combustion process. The spinel structure cubic phase LiMn 2 O 4 graphene hybrid material was prepared by spray drying process at 120 ℃ and subsequent heat treatment at 700 ℃ for 1 hour. The result indicates that the spinel shaped LiMn 2 O 4 particles wrapped with graphene sheets were formed with particle size in the range of 60-70 nm. The charge-discharge measurement indicates that the LiMn 2 O 4 graphene hybrid material shows an improved discharge capacity of 139 mAh/g at 0.1C rate. The pristine LiMn 2 O 4 nano crystals present only about 132 mAh/g discharge capacity. The LiMn 2 O 4 graphene hybrid samples show good cyclic performance with only 13% of capacity fading in 30 cycles when compared to the pristine LiMn 2 O 4 that shows 22% of capacity fading in 30 cycles. The capacity retention of the LiMn 2 O 4 graphene hybrid samples is about 10% higher than the pristine cycle after 30 cycles.
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.
