Study of Supercapacitors Based on Nanomaterial’s of Novel Architectures

2015 ◽  
Vol 733 ◽  
pp. 680-683
Author(s):  
Ya Rong He
Keyword(s):  
Energy Source ◽  
Electrode Materials ◽  
Discharge Rate ◽  
Structural Instability ◽  
Storage Device ◽  
Design Synthesis ◽  
Energy Devices ◽  
New Energy ◽  
And Performance ◽  
Performance Research

Sustainable exploration and use of energy source depend on discovery of new energy source and development of novel energy devices. As a kind of energy storage device, supercapacitors have many advantages over conventional batteries: high power density, long cycling stability, fast charge-discharge rate and being environment friendly. However, common problems involved with nanomaterials such as bad structural continuity, conglomeration and structural instability have restricted their application in supercapacitors. We have conducted the design, synthesis and performance research of the electrode materials containing. We demonstrate the above composite materials have wide prospect for application in the supercapacitors as well as other similar fields.

scholarly journals Recent Progress of Electrochemical Energy Devices: Metal Oxide–Carbon Nanocomposites as Materials for Next-Generation Chemical Storage for Renewable Energy

2019 ◽  
Vol 11 (13) ◽  
pp. 3694 ◽  
Author(s):  
Dohyeong Seok ◽  
Yohan Jeong ◽  
Kyoungho Han ◽  
Do Young Yoon ◽  
Hiesang Sohn
Keyword(s):  
Metal Oxide ◽  
Metal Oxides ◽  
Electrode Materials ◽  
Three Dimensional ◽  
Structural Instability ◽  
Energy Devices ◽  
High Theoretical Capacity ◽  
2D And 3D ◽  
Oxide Composites ◽  
Electrochemical Energy

With the importance of sustainable energy, resources, and environmental issues, interest in metal oxides increased significantly during the past several years owing to their high theoretical capacity and promising use as electrode materials for electrochemical energy devices. However, the low electrical conductivity of metal oxides and their structural instability during cycling can degrade the battery performance. To solve this problem, studies on carbon/metal-oxide composites were carried out. In this review, we comprehensively discuss the characteristics (chemical, physical, electrical, and structural properties) of such composites by categorizing the structure of carbon in different dimensions and discuss their application toward electrochemical energy devices. In particular, one-, two-, and three-dimensional (1D, 2D, and 3D) carbon bring about numerous advantages to a carbon/metal-oxide composite owing to the unique characteristics of each dimension.

Human Morphometrics, Motion, and Performance Research.

1994 ◽  
Author(s):  
Bruce Bradtmiller ◽  
Sherri Upchurch-Blackwell ◽  
Henry W. Case ◽  
Thomas D. Churchhill ◽  
Daniel N. Mountjoy
Keyword(s):  
And Performance ◽  
Performance Research

scholarly journals Anion ordering enables fast H− conduction at low temperatures

2021 ◽  
Vol 7 (23) ◽  
pp. eabf7883
Author(s):  
Hiroki Ubukata ◽  
Fumitaka Takeiri ◽  
Kazuki Shitara ◽  
Cédric Tassel ◽  
Takashi Saito ◽  
...  
Keyword(s):  
Ionic Conductivity ◽  
Room Temperature ◽  
Structural Transition ◽  
Hexagonal Lattice ◽  
Ionic Conductors ◽  
Activation Barriers ◽  
Energy Devices ◽  
Energy Applications ◽  
Chemical Disorder ◽  
New Energy

The introduction of chemical disorder by substitutional chemistry into ionic conductors is the most commonly used strategy to stabilize high-symmetric phases while maintaining ionic conductivity at lower temperatures. In recent years, hydride materials have received much attention owing to their potential for new energy applications, but there remains room for development in ionic conductivity below 300°C. Here, we show that layered anion-ordered Ba2−δH3−2δX (X = Cl, Br, and I) exhibit a remarkable conductivity, reaching 1 mS cm−1 at 200°C, with low activation barriers allowing H− conduction even at room temperature. In contrast to structurally related BaH2 (i.e., Ba2H4), the layered anion order in Ba2−δH3−2δX, along with Schottky defects, likely suppresses a structural transition, rather than the traditional chemical disorder, while retaining a highly symmetric hexagonal lattice. This discovery could open a new direction in electrochemical use of hydrogen in synthetic processes and energy devices.

Leveraging a New Energy Source to Enhance Heavy Oil and Oilsands Production

2005 ◽  
Author(s):  
Cameron James Geddes ◽  
Harry Bailey Curlett
Keyword(s):  
Energy Source ◽  
Heavy Oil ◽  
New Energy
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