Suitable Electrode Materials for Hybrid Capacitors

2021 ◽  
pp. 1-30
Author(s):  
Manickam Minakshi ◽  
Philip A. Schneider ◽  
Rajeev Ahuja
Keyword(s):  
Electrode Materials ◽  
Hybrid Capacitors

Core–Shell Structured NiCo2O4@ZnCo2O4 Nanomaterials with High Energy Density for Hybrid Capacitors

2021 ◽  
Vol 16 (7) ◽  
pp. 1134-1142
Author(s):  
Wenduo Yang ◽  
Jun Xiang ◽  
Sroeurb Loy ◽  
Nan Bu ◽  
Duo Cui ◽  
...  
Keyword(s):  
Energy Density ◽  
Electrode Material ◽  
Composite Electrode ◽  
Electrode Materials ◽  
Structural Characteristics ◽  
High Energy ◽  
High Energy Density ◽  
Core Shell ◽  
Shell Composite ◽  
Hybrid Capacitors

NiCo2O4 as an electrode material for supercapacitors (SCs) has been studied by a host of researchers due to its unique structural characteristics and high capacitance. However, its performance has not yet reached the level of practical applications.it is an effective strategy to synthesize composite electrode materials for tackling the problem. Herein, NiCo2O4@ZnCo2O4 as a novel core–shell composite electrode material has been fabricated through a two-step simple hydrothermal method. The as-prepared sample can be directly used as cathode material of a supercapacitor, and its specific capacitance is 463.1 C/g at 1 A/g. An assembled capacitor has an energy density of 77 Wh·kg−1 at 2700 W·kg−1, and after 8000 cycles, 88% of the initial capacity remains.

Thin-film technologies in the creation of electrode materials for promising current sources

2021 ◽  
pp. 63-66
Author(s):  
Keyword(s):  
Thin Film ◽  
High Power ◽  
Electrode Materials ◽  
Carbon Matrix ◽  
Metal Nanoclusters ◽  
Theoretical Substantiation ◽  
Vacuum Technology ◽  
Similar Materials ◽  
The Creation ◽  
Hybrid Capacitors

The theoretical substantiation of the use of thin-film technology in the creation of electrode materials for hybrid capacitors based on a carbon matrix modified with metal nanoclusters is given. Technologies for the synthesis of similar materials for high-power mobile current sources are considered. Keywords: hybrid capacitor, thin-film vacuum technology, nanotechnology, metal nanoclusters, electrode materials. [email protected]

Cabbage-Like NiCo2S4/MoS2 Assemblies as Electrode Materials for Asymmetric Hybrid Capacitors

2021 ◽  
Vol 16 (5) ◽  
pp. 827-832
Author(s):  
Yan Zhao ◽  
Shiwei Song
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Electrode Materials ◽  
Hydrothermal Process ◽  
Asymmetric Supercapacitor ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Asymmetric Hybrid ◽  
Hybrid Capacitors ◽  
Simple Hydrothermal Process

In this work, cabbage-like NiCo2S4/MoS2 assemblies are prepared via a simple hydrothermal process. The as-prepared product as electrode material possesses a specific capacitance of 612 C g−1 at 1 A g−1 and 94% capacitance retention after 10000 cycles at 10 A g−1. Furthermore, the as-assembled asymmetric supercapacitor exhibits an energy density of 73.3 Wh kg−1 at a power density of 453.4 W kg−1. It demonstrates that the cabbage-like structures present promising applications in future energy storage devices.

scholarly journals Transition metal oxide@hydroxide assemblies as electrode materials for asymmetric hybrid capacitors with excellent cycling stabilities

RSC Advances ◽  
2019 ◽  
Vol 9 (56) ◽  
pp. 32510-32516 ◽  
Author(s):  
Pengfei Hu ◽  
Ying Liu ◽  
Jianrong Song ◽  
Xiufeng Song ◽  
Xiang Wu
Keyword(s):  
Transition Metal ◽  
Metal Oxide ◽  
Hydrothermal Method ◽  
Electrode Materials ◽  
Three Dimensional ◽  
Transition Metal Oxide ◽  
Ni Foam ◽  
Oxide Hydroxide ◽  
Asymmetric Hybrid ◽  
Hybrid Capacitors

In this work, three-dimensional cactus-like Co3O4@Ni(OH)2 electrode materials are grown directly on Ni foam via a two-step hydrothermal method.

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