Abstract
Spent carbon cathode (SCC), one of the hazardous solid wastes from aluminum reduction cell, is recovered by the alkali fusion method. The recovered carbon (RC) is characterized by XRD, TGA, SEM, TEM, Raman. Meanwhile, the RC used as the anode for lithium-ion batteries (LIBs) is investigated. The results show that the impurities content of SCC decreases from 36.36% to 5.62%. And the RC shows the unique microstructure with slightly expanded graphite layer (0.339–0.420 nm), uneven graphitization degree and a small number of defects and graphene. RC exhibits an initial capacity of 357.6 ± 9.6 mA h·g−1 at 0.1C and rate capability with a reversible capacity of 267.8 ± 12.5 mA h·g−1 at 1C after 310 cycles. Compared with graphite, the RC has better cyclic stability. Therefore, this method provides a potential way for the resource utilization of SCC.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: 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.