Electrospun ZIF-derived cavity porous carbon nanofibers as a freestanding cathode for lithium–oxygen batteries with ultralow overpotential
Lichong Peng, Xiuling Zhang, Yaxin Sun, Congju Li
Abstract
We have developed a feasible approach to establish a freestanding air-cathode based on Co–N x species trapped in hierarchical porous carbon nanofibers with reduced charge-discharge polarization (0.36 V) and high initial specific capacity (12.12 mAh cm −2 ) for Li–O 2 batteries.
Topics & Concepts
OverpotentialMaterials scienceCathodeElectrospinningNanofiberLithium (medication)PorosityCarbon nanofiberOxygenCarbon fibersChemical engineeringNanotechnologyComposite materialCarbon nanotubeElectrodeElectrochemistryChemistryPolymerComposite numberOrganic chemistryMedicinePhysical chemistryEngineeringEndocrinologyAdvancements in Battery MaterialsAdvanced Battery Materials and TechnologiesAdvanced Battery Technologies Research