FeS quantum dots embedded in 3D ordered macroporous carbon nanocomposite for high-performance sodium-ion hybrid capacitors

2019 ◽  
Vol 7 (3) ◽  
pp. 1138-1148 ◽  
Author(s):  
Xiang Hu ◽  
Yangjie Liu ◽  
Junxiang Chen ◽  
Jingchun Jia ◽  
Hongbing Zhan ◽  
...  

The 3D ordered macroporous structure made of FeS quantum dots homogeneously embedded in a 3D inverse opal-structured carbon matrix was designed for sodium ion capacitors with high energy/power densities.

Author(s):  
Chong Wang ◽  
Ning Zhao ◽  
Bohan Li ◽  
Qingtao Yu ◽  
Wanci Shen ◽  
...  

Developing high-performance electrode material for energy-storage devices with high energy-power densities, such as sodium ion hybrid capacitors (SIHCs), is of vital importance for applications in electric vehicles and portable electronics....


2020 ◽  
Vol 8 (5) ◽  
pp. 2843-2850 ◽  
Author(s):  
Yuanlin Liu ◽  
Nana Wang ◽  
Xunhua Zhao ◽  
Zhiwei Fang ◽  
Xiao Zhang ◽  
...  

3DOM MoSe2@C constructed by ultrathin MoSe2 nanosheets strongly binging on 3DOM carbon skeleton exerts high energy and power density for sodium-ion batteries.


2018 ◽  
Vol 20 (21) ◽  
pp. 4920-4931 ◽  
Author(s):  
Ranjith Thangavel ◽  
Rubha Ponraj ◽  
Aravindaraj G. Kannan ◽  
Karthikeyan Kaliyappan ◽  
Dong Won Kim ◽  
...  

Sodium hybrid capacitors (NHCs) have tremendous potential to meet the simultaneous high energy–high power requirement of next-generation storage applications.


2019 ◽  
Author(s):  
Yamin Zhang ◽  
Lina Chen ◽  
Chongyang Hao ◽  
Xiaowen Zheng ◽  
Yixuan Guo ◽  
...  

For the applications of aqueous Li-ion hybrid capacitors and Na-ion hybrid capacitors, potassium ions are pre-inserted into MnO<sub>2</sub> tunnel structure, the as-prepared K<sub>1.04</sub>Mn<sub>8</sub>O<sub>16</sub> materials consist of <a>nanoparticles</a> and nanorods were prepared by facile high-temperature solid-state reaction. <a></a>The as-prepared materials were well studied andthey show outstanding electrochemical behavior. We assembled hybrid supercapacitors with commercial activated carbon (YEC-8A) as anode and K<sub>1.04</sub>Mn<sub>8</sub>O<sub>16 </sub>as cathode. It has high energy densities and power densities. Li-ion capacitors reach a high energy density of 127.61 Wh kg<sup>-1 </sup>at the power density of 99.86 W kg<sup>-1</sup> and Na-ion capacitor obtains 170.96 Wh kg<sup>-1 </sup>at 133.79 W kg<sup>-1</sup>. In addition, the <a>hybrid supercapacitor</a>s demonstrate excellent cycling performance which maintain 97 % capacitance retention for Li-ion capacitor and 85 % for Na-ion capacitor after 10,000 cycles.


2021 ◽  
Vol 493 ◽  
pp. 229678
Author(s):  
Licong Huang ◽  
Linchao Zeng ◽  
Jianhui Zhu ◽  
Lingna Sun ◽  
Lei Yao ◽  
...  

Author(s):  
Jian Zhao ◽  
He Cheng ◽  
Huanyu Li ◽  
Yan-Jie Wang ◽  
Qingyan Jiang ◽  
...  

Developing advanced negative and positive electrode materials for asymmetric supercapacitors (ASCs) as the electrochemical energy storage can enable the device to reach high energy/power densities resulting from the cooperative effect...


2020 ◽  
Vol 7 (2) ◽  
pp. 411-420
Author(s):  
Xue Bai ◽  
Dianxue Cao ◽  
Hongyu Zhang

Combining interfacial methods and mesoporous carbon channels, an asymmetric device, using N,S-codoped mesoporous carbon and a MnO2@MC-30 core shell composite, is assembled with high energy, power densities and outstanding cycling stability.


2017 ◽  
Vol 61 (2) ◽  
pp. 285-295 ◽  
Author(s):  
Yongqiang Ding ◽  
Bingjun Yang ◽  
Jiangtao Chen ◽  
Li Zhang ◽  
Junshuai Li ◽  
...  

2022 ◽  
Vol 896 ◽  
pp. 163128
Author(s):  
Yue Lian ◽  
Ning Yang ◽  
Yongqing bai ◽  
Dawei Wang ◽  
Haishui Yan ◽  
...  

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