Abstract
Abstract Nowadays, sodium-ion batteries (SIBs) have received extensive attention for their abundant resources and low price. Some quinone compounds have the advantages of high specific capacity, diverse structures, environmental friendliness and good redox reversibility, are ideal cathode materials. Calix[4]quinone (C4Q) with a high theoretical specific capacity of 446 mA h g−1 is synthesized as cathodes, while it is still puzzled over low conductivity and high dissolution rate in organic electrolytes. In this study, a kind of economical and practical biocarbon-PPL with porous tubular structures is prepared by pyrolysis of Physalis Peruviana L. Calyx to immobilize C4Q in SIBs for the first time. The C4Q/PPL cathode presents an initial capacity of 435 mA h g−1 with stable cyclability (195 mA h g−1 after 100 cycles at 0.1 C) and great rate performance (170 mA h g−1 at 1 C).
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.
