Abstract
Transition metal oxides are promising high-capacity anode materials for next-generation lithium-ion batteries. However, their cycle life remains insufficient for commercial applications. Developing transition-metal oxide anode materials with a long lifespan through a facile route has become an important issue. This work reports the fabrication of ultrathin CoO/graphene hybrid nanosheets consisting of ultrafine CoO nanoparticles (∼5 nm) densely anchored on the graphene nanosheets. They exhibit a high reversible capacity of ∼1018.0 mAh g–1 over 520 discharge/charge cycles, and the Coulombic efficiency remains ∼100% upon cycling, indicating excellent cyclability. The as-obtained CoO/graphene nanocomposite avoids the widespread problem of cracking or pulverization of transition-metal oxide anode materials upon cycling and retains its original morphology and structure even after 520 discharge/charge cycles, benefiting from the synergetic effects of ultrafine CoO nanoparticles and the conductive graphene nanosheets.
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.
