Journal
ENERGY STORAGE MATERIALS
Volume 13, Issue -, Pages 96-102Publisher
ELSEVIER
DOI: 10.1016/j.ensm.2018.01.003
Keywords
Energy storage; Zinc-ion hybrid supercapacitor; Activated carbon; Zn anode
Funding
- National Key Basic Research (973) Program of China [2014CB932400]
- CERC-CVC [2016YFE0102200]
- Shenzhen Technical Plan Projects [JCYJ20160301154114273]
Ask authors/readers for more resources
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.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available