Hierarchical copper cobalt sulfide nanobelt arrays for high performance asymmetric supercapacitors

2021 ◽  
Author(s):  
Leiyun Han ◽  
Xilong Liu ◽  
zheng cui ◽  
Yingjie Hua ◽  
Chongtai Wang ◽  
...  
Keyword(s):  
Energy Density ◽  
High Performance ◽  
Electrode Materials ◽  
Solvothermal Method ◽  
Morphology Control ◽  
High Energy ◽  
High Energy Density ◽  
Cobalt Sulfide ◽  
Asymmetric Supercapacitors ◽  
Array Structures

Hierarchical copper cobalt sulfide nanobelt array structures with well-defined morphology control are first reported as high energy density electrode materials for asymmetric supercapacitors using a simple two-step solvothermal method. Through...

High-performance nickel cobalt sulfide materials via low-cost preparation for advanced asymmetric supercapacitors

RSC Advances ◽  
2016 ◽  
Vol 6 (48) ◽  
pp. 42633-42642 ◽  
Author(s):  
Shaolan Wang ◽  
Wei Li ◽  
Lipeng Xin ◽  
Ming Wu ◽  
Xiaojie Lou
Keyword(s):  
High Performance ◽  
Electrode Materials ◽  
Low Cost ◽  
High Energy ◽  
High Energy Density ◽  
Cobalt Sulfide ◽  
Asymmetric Supercapacitors ◽  
Nickel Cobalt ◽  
Good Cycling Stability ◽  
Asymmetric Device

First report the nickel cobalt sulfides electrode materials through a facile, convenient and low cost coprecipitation method. The as-fabricated asymmetric device exhibits high energy density (44.44 W h kg−1 at 954.14 W kg−1) and good cycling stability.

A three-dimensional graphene framework-enabled high-performance stretchable asymmetric supercapacitor

2018 ◽  
Vol 6 (4) ◽  
pp. 1802-1808 ◽  
Author(s):  
Ke Li ◽  
Yanshan Huang ◽  
Jingjing Liu ◽  
Mansoor Sarfraz ◽  
Phillips O. Agboola ◽  
...  
Keyword(s):  
Energy Density ◽  
High Performance ◽  
Three Dimensional ◽  
High Energy ◽  
Cycling Stability ◽  
High Energy Density ◽  
Asymmetric Supercapacitor ◽  
Asymmetric Supercapacitors ◽  
Superior Cycling Stability

Three-dimensional graphene frameworks enable the development of stretchable asymmetric supercapacitors with a record high energy density of 77.8 W h kg−1, and also excellent stretchability and superior cycling stability.

scholarly journals In situ construction of yolk–shell zinc cobaltite with uniform carbon doping for high performance asymmetric supercapacitors

2018 ◽  
Vol 6 (19) ◽  
pp. 9109-9115 ◽  
Author(s):  
Xiaoya Chang ◽  
Lei Zang ◽  
Song Liu ◽  
Mengying Wang ◽  
Huinan Guo ◽  
...  
Keyword(s):  
Energy Density ◽  
Power Density ◽  
High Performance ◽  
High Energy ◽  
Carbon Doping ◽  
High Energy Density ◽  
Asymmetric Supercapacitors

Yolk–shell ZnCo2O4 with in situ formed carbon shows great potential for supercapacitors, which delivers high energy density and power density.

High-performance quasi-solid-state asymmetric supercapacitors based on BiMn2O5 nanoparticles and redox-additive electrolytes

2019 ◽  
Vol 6 (8) ◽  
pp. 2061-2070 ◽  
Author(s):  
Jai Bhagwan ◽  
Bhimanaboina Ramulu ◽  
Jae Su Yu
Keyword(s):  
Energy Storage ◽  
Solid State ◽  
Energy Density ◽  
High Performance ◽  
High Energy ◽  
High Energy Density ◽  
Asymmetric Supercapacitors ◽  
Storage Performance

The investigation of nanomaterials with improved energy storage performance is essential in the development of high energy density supercapacitors.

Hierarchical three-dimensional mesoporous MnO2 nanostructures for high performance aqueous asymmetric supercapacitors

2016 ◽  
Vol 4 (2) ◽  
pp. 587-595 ◽  
Author(s):  
Sourav Bag ◽  
C. Retna Raj
Keyword(s):  
Energy Density ◽  
High Performance ◽  
Three Dimensional ◽  
High Energy ◽  
High Energy Density ◽  
Asymmetric Supercapacitor ◽  
Asymmetric Supercapacitors

Nanocrystalline mesoporous α-MnO2 is synthesized for the fabrication of a high energy density aqueous asymmetric supercapacitor device.

Facile synthesis of manganese carbonate quantum dots/Ni(HCO3)2–MnCO3 composites as advanced cathode materials for high energy density asymmetric supercapacitors

2015 ◽  
Vol 3 (44) ◽  
pp. 22102-22117 ◽  
Author(s):  
Qi Xun Xia ◽  
Kwan San Hui ◽  
Kwun Nam Hui ◽  
Sung Dae Kim ◽  
Jae Hong Lim ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Energy Density ◽  
Cathode Materials ◽  
High Performance ◽  
High Energy ◽  
High Energy Density ◽  
Manganese Carbonate ◽  
Facile Synthesis ◽  
Asymmetric Supercapacitors ◽  
Cathode Electrode

Well dispersed MnCO3 quantum dots (∼1.2 nm) decorated on Ni(HCO3)2–MnCO3 as a cathode electrode for high performance supercapacitors.

Hydrothermal synthesis of CuCo2O4/CuO nanowire arrays and RGO/Fe2O3 composites for high-performance aqueous asymmetric supercapacitors

2016 ◽  
Vol 4 (25) ◽  
pp. 9977-9985 ◽  
Author(s):  
Yidan Wang ◽  
Cheng Shen ◽  
Lengyuan Niu ◽  
Rongzhen Li ◽  
Huatong Guo ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
Energy Density ◽  
High Performance ◽  
High Energy ◽  
Nanowire Arrays ◽  
High Energy Density ◽  
Asymmetric Supercapacitor ◽  
Asymmetric Supercapacitors ◽  
Cuo Nanowire

A CuCo2O4/CuO//RGO/Fe2O3 asymmetric supercapacitor was fabricated and it delivered a high energy density of 33.0 W h kg−1.

Electrode materials based on α-NiCo(OH)2 and rGO for high performance energy storage devices

RSC Advances ◽  
2016 ◽  
Vol 6 (104) ◽  
pp. 102504-102512 ◽  
Author(s):  
J. M. Gonçalves ◽  
R. R. Guimarães ◽  
C. V. Nunes ◽  
A. Duarte ◽  
B. B. N. S. Brandão ◽  
...  
Keyword(s):  
Composite Material ◽  
Energy Storage ◽  
Energy Density ◽  
High Performance ◽  
Electrode Materials ◽  
High Energy ◽  
High Energy Density ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Charge Discharge

Described herein is a composite material based on rGO and α-NiCo(OH)2 nanoparticles combining very fast charge/discharge processes with the high energy density of batteries, suitable for application in high performance energy storage devices.

Nitrogen-doped heterostructure carbon functionalized by electroactive organic molecules for asymmetric supercapacitors with high energy density

RSC Advances ◽  
2016 ◽  
Vol 6 (46) ◽  
pp. 40602-40614 ◽  
Author(s):  
Bingshu Guo ◽  
Zhongai Hu ◽  
Yufeng An ◽  
Ning An ◽  
Pengfei Jia ◽  
...  
Keyword(s):  
Energy Density ◽  
Organic Molecules ◽  
Electrode Materials ◽  
High Energy ◽  
Noncovalent Interaction ◽  
High Energy Density ◽  
Asymmetric Supercapacitors ◽  
Nitrogen Doped ◽  
Redox Center

The organic molecules (TCBQ, AQ) with multi-electron redox center are selected to modify nitrogen-doped heterostructure carbon (NHC) by noncovalent interaction and the electrode materials show good performances and potential self-matching behaviors.

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