Abstract
Thanks to its larger surface and free volume, hollow nanostructure and nanomaterials are one kind of highly desirable electrodes for efficiently enhancing sodium-ion battery performance, especially at high rate. Herein, we demonstrate a design of hierarchical semi-open hollow structure, assembling with molybdenum selenide (MoSe2) nanosheets embedded on the nitrogen doped carbon matrix. The unique hollow structure can not only enable sufficient electrode/electrolyte interaction and fast electron transportation, but also suppress volume expansion during the insertion/extraction of sodium ion. As a direct outcome, the MoSe2/carbon anode exhibits excellent cycling and rate performance with a specific capacity of 431 mAh g−1 at 200 mA g−1, maintaining 87.7% capacity after 120 cycles. Notably, a discharge capacity of 199.1 mAh g−1 can be achieved even at an ultra-high current density of 20 A g−1, indicating quick Na+ storage ability. The results may open a new way to realize high-rate anode for ion battery applications.
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.
