Coupling effect between ultra-small Mn3O4 nanoparticles and porous carbon microrods for hybrid supercapacitors
Publication in refereed journal


Times Cited
Altmetrics Information
.

Other information
AbstractHybrid supercapacitor, which is an energy storage device that combines a low-energy/fast double-layer electrode and a high-energy/sluggish faradaic redox electrode, could realize further gains in energy/power density if the capacity and rate gaps of the two electrodes are properly balanced. Herein, a microrod-like architecture that incorporates Mn3O4 nanoparticles on/in highly porous carbon rods (PCR) scaffold (denoted as Mn-PCR composite) is designed for this purpose. The optimized Mn-PCR composite exhibits large Li-ion storage capacity and fast charge/discharge rate, mainly stemming from its distinct microrod-like architecture and porous structure. We then employ Mn-PCR composite as the anode and PCR as the cathode to fabricate a hybrid supercapacitor, which yields an ultrahigh energy density of 174 W h kg(-1) at 200 W kg(-1) and retains 74.5 W h kg(-1) at a high power density of 10 kW kg(-1)
All Author(s) ListRutao Wang, Pan Liu, Junwei Lang, Li Zhang, Xingbin Yan
Journal nameENERGY STORAGE MATERIALS
Year2017
Month1
Volume Number6
PublisherELSEVIER SCIENCE BV
Pages53 - 60
ISSN2405-8297
LanguagesEnglish-United Kingdom
KeywordsHybrid supercapacitor, Manganese oxide, Porous carbon, Microstructure, Energy storage
Web of Science Subject CategoriesMaterials Science, Multidisciplinary;Materials Science

Last updated on 2020-03-06 at 00:15