TY  - JOUR
AB  - © 2018 With rapid development of portable electronics and electric vehicles, high-performance energy storage devices are urgently needed; however, the existing energy storage systems often have some deficiency, such as low energy for supercapacitors, security risks for lithium-ion batteries and poor cycling stability for alkaline zinc/manganese dioxide batteries. Here we report a novel energy storage system of zinc-ion hybrid supercapacitors (ZHSs), in which activated carbon materials, Zn metal and ZnSO4 aqueous solution serve as cathode, anode and electrolyte, respectively. Reversible ion adsorption/desorption on AC cathode and Zn2+ deposition/stripping on Zn anode enable the ZHSs to repeatedly and rapidly store/deliver electrical energy, accompanying with a capacity of 121 mAh g?1 (corresponding to an energy of 84 Wh kg?1), a very large power output of 14.9 kW kg?1 and an excellent cycling stability with 91% capacity retention over 10000 cycles. The extremely safe, high-rate and ultralong-life ZHSs are believed to provide new options for next-generation energy storage devices.
AU  - Dong, L
AU  - Ma, X
AU  - Li, Y
AU  - Zhao, L
AU  - Liu, W
AU  - Cheng, J
AU  - Xu, C
AU  - Li, B
AU  - Yang, QH
AU  - Kang, F
DA  - 2018/07/01
DO  - 10.1016/j.ensm.2018.01.003
EP  - 102
JO  - Energy Storage Materials
PY  - 2018/07/01
SP  - 96
TI  - Extremely safe, high-rate and ultralong-life zinc-ion hybrid supercapacitors
VL  - 13
Y1  - 2018/07/01
Y2  - 2026/06/01
ER  -