title: Long-Lasting Nb2O5-Based Nanocomposite Materials for Li-Ion Storage.
abstract: Advanced nanostructured hybrid materials can help us overcome the electrochemical performance limitations of current energy storage devices. In this study, three-dimensional porous carbon nanowebs (3D-CNWs) with numerous included orthorhombic Nb2O5(T-Nb2O5) nanoparticles were fabricated using a microbe-derived nanostructure. The 3D-CNW/T-Nb2O5nanocomposites showed an exceptionally stable long-term cycling performance over 70 000 cycles, a high reversible capacity of ∼125 mA h g-1, and fast Li-ion storage kinetics in a coin-type two-electrode system using Li metal. In addition, energy storage devices based on the above nanocomposites achieved a high specific energy of ∼80 W h kg-1together with a high specific power of ∼5300 W kg-1and outstanding cycling performance with ∼80% capacitance retention after 35 000 cycles.
authors.affiliation: Department of Polymer Science and Engineering, Inha University , Incheon 402-751, Korea.
authors.forename: Min Yeong
authors.initials: MY
authors.lastname: Song
authors.affiliation: Department of Polymer Science and Engineering, Inha University , Incheon 402-751, Korea.
authors.forename: Na Rae
authors.initials: NR
authors.lastname: Kim
authors.affiliation: Department of Polymer Science and Engineering, Inha University , Incheon 402-751, Korea.
authors.forename: Hyeon Ji
authors.initials: HJ
authors.lastname: Yoon
authors.affiliation: Department of Polymer Science and Engineering, Inha University , Incheon 402-751, Korea.
authors.forename: Se Youn
authors.initials: SY
authors.lastname: Cho
authors.affiliation: Department of Polymer Science and Engineering, Inha University , Incheon 402-751, Korea.
authors.forename: Hyoung-Joon
authors.initials: HJ
authors.lastname: Jin
authors.affiliation: Department of Chemical Engineering, Kangwon National University , Samcheok 245-711, Korea.
authors.forename: Young Soo
authors.identifier: http://orcid.org/0000-0002-2937-9638
authors.initials: YS
authors.lastname: Yun
keywords: Li-ion; electrode; hybrid capacitor; nanocomposite; niobium pentoxide; porous carbon