Abstract
Alkaline zinc-based batteries have become a current research hotspot due to their high energy density and safety, but their low cycle stability and rate performance limit their commercial applications. Herein, vertically ordered NiCo2Sx nanoneedle arrays are prepared using different sulfidation concentrations based on the anion exchange reaction. The highly uniform nanoneedle arrays provide fast ion transport paths and abundant active sites, and the prepared NiCo2Sx@Ni foam (NiCo2Sx@NF) electrode has the excellent capacity (121.9 mAh g−1), stable cycle performance (91.1 % of capacity retention after 500 cycles), also achieves a maximum energy density of 636.3 Wh kg−1 and a maximum power density of 40.9 kW kg−1. This paper provides a more precise and accurate idea for preparing cathode materials for durable alkaline Ni–Zn batteries.
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.