title: In Situ Binding Sb Nanospheres on Graphene via Oxygen Bonds as Superior Anode for Ultrafast Sodium-Ion Batteries.
abstract: Graphene incorporation should be one effective strategy to develop advanced electrode materials for a sodium-ion battery (SIB). Herein, the micro/nanostructural Sb/graphene composite (Sb-O-G) is successfully prepared with the uniform Sb nanospheres (∼100 nm) bound on the graphene via oxygen bonds. It is revealed that the in-situ-constructed oxygen bonds play a significant role on enhancing Na-storage properties, especially the ultrafast charge/discharge capability. The oxygen-bond-enhanced Sb-O-G composite can deliver a high capacity of 220 mAh/g at an ultrahigh current density of 12 A/g, which is obviously superior to the similar Sb/G composite (130 mAh/g at 10 A/g) just without Sb-O-C bonds. It also exhibits the highest Na-storage capacity compared to Sb/G and pure Sb nanoparticles as well as the best cycling performance. More importantly, this Sb-O-G anode achieves ultrafast (120 C) energy storage in SIB full cells, which have already been shown to power a 26-bulb array and calculator. All of these superior performances originate from the structural stability of Sb-O-C bonds during Na uptake/release, which has been verified by ex situ X-ray photoelectron spectroscopies and infrared spectroscopies.
authors.affiliation: National & Local United Engineering Lab for Power Battery, Faculty of Chemistry, Northeast Normal University , Changchun, Jilin 130024, P. R. China.
authors.forename: Fang
authors.initials: F
authors.lastname: Wan
authors.affiliation: National & Local United Engineering Lab for Power Battery, Faculty of Chemistry, Northeast Normal University , Changchun, Jilin 130024, P. R. China.
authors.forename: Jin-Zhi
authors.initials: JZ
authors.lastname: Guo
authors.affiliation: National & Local United Engineering Lab for Power Battery, Faculty of Chemistry, Northeast Normal University , Changchun, Jilin 130024, P. R. China.
authors.forename: Xiao-Hua
authors.initials: XH
authors.lastname: Zhang
authors.affiliation: National & Local United Engineering Lab for Power Battery, Faculty of Chemistry, Northeast Normal University , Changchun, Jilin 130024, P. R. China.
authors.forename: Jing-Ping
authors.initials: JP
authors.lastname: Zhang
authors.affiliation: National & Local United Engineering Lab for Power Battery, Faculty of Chemistry, Northeast Normal University , Changchun, Jilin 130024, P. R. China.
authors.forename: Hai-Zhu
authors.initials: HZ
authors.lastname: Sun
authors.affiliation: School of Materials Science and Engineering, Nanyang Technological University , 50 Nanyang Avenue 639798, Singapore.
authors.forename: Qingyu
authors.initials: Q
authors.lastname: Yan
authors.affiliation: State Key Laboratory of Electroanalytical Chemistry, c/o Engineering Laboratory for Modern Analytical Techniques, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun, Jilin 130022, P. R. China.
authors.forename: Dong-Xue
authors.initials: DX
authors.lastname: Han
authors.affiliation: State Key Laboratory of Electroanalytical Chemistry, c/o Engineering Laboratory for Modern Analytical Techniques, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun, Jilin 130022, P. R. China.
authors.forename: Li
authors.initials: L
authors.lastname: Niu
authors.affiliation: National & Local United Engineering Lab for Power Battery, Faculty of Chemistry, Northeast Normal University , Changchun, Jilin 130024, P. R. China.|School of Materials Science and Engineering, Nanyang Technological University , 50 Nanyang Avenue 639798, Singapore.
authors.forename: Xing-Long
authors.initials: XL
authors.lastname: Wu
keywords: antimony nanospheres; full cells; graphene; oxygen bonds; sodium-ion batteries