Identification of Substitution Mechanism in Group VIII Metal Oxides Doped Pb(Zn1/3 Nb2/3 )O3 -PbZrO3 -PbTiO3 Ceramics with High Energy Density and Mechanical Performance

2013 ◽  
Vol 96 (8) ◽  
pp. 2486-2492 ◽  
Author(s):  
Mupeng Zheng ◽  
Yudong Hou ◽  
Sai Wang ◽  
Chenghui Duan ◽  
Mankang Zhu ◽  
...  
Keyword(s):  
Energy Density ◽  
Metal Oxides ◽  
Mechanical Performance ◽  
High Energy ◽  
High Energy Density ◽  
Group Viii ◽  
Group Viii Metal ◽  
Substitution Mechanism ◽  
Pbtio3 Ceramics

scholarly journals Cation-disordered rocksalt transition metal oxides and oxyfluorides for high energy lithium-ion cathodes

2020 ◽  
Vol 13 (2) ◽  
pp. 345-373 ◽  
Author(s):  
R. J. Clément ◽  
Z. Lun ◽  
G. Ceder
Keyword(s):  
Energy Density ◽  
Metal Oxides ◽  
Transition Metal Oxides ◽  
Short Range ◽  
Short Range Order ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
Detailed Understanding ◽  
The Impact

Cation-disordered rocksalt oxides and oxyfluorides are promising high energy density lithium-ion cathodes, yet require a detailed understanding of the impact of disorder and short-range order on the structural and electrochemical properties.

scholarly journals Bio-inspired untethered fully soft robots in liquid actuated by induced energy gradients

2019 ◽  
Vol 6 (5) ◽  
pp. 970-981 ◽  
Author(s):  
Liang Xiong Lyu ◽  
Fen Li ◽  
Kang Wu ◽  
Pan Deng ◽  
Seung Hee Jeong ◽  
...  
Keyword(s):  
Energy Density ◽  
Mechanical Performance ◽  
Soft Materials ◽  
High Energy ◽  
High Energy Density ◽  
Soft Robot ◽  
Soft Robots ◽  
Power Sources ◽  
Practical Applications ◽  
Robot Swarm

Abstract Soft robotics with new designs, fabrication technologies and control strategies inspired by nature have been totally changing our view on robotics. To fully exploit their potential in practical applications, untethered designs are preferred in implementation. However, hindered by the limited thermal/mechanical performance of soft materials, it has been always challenging for researchers to implement untethered solutions, which generally involve rigid forms of high energy-density power sources or high energy-density processes. A number of insects in nature, such as rove beetles, can gain a burst of kinetic energy from the induced surface-energy gradient on water to return to their familiar habitats, which is generally known as Marangoni propulsion. Inspired by such a behavior, we report the agile untethered mobility of a fully soft robot in liquid based on induced energy gradients and also develop corresponding fabrication and maneuvering strategies. The robot can reach a speed of 5.5 body lengths per second, which is 7-fold more than the best reported, 0.69 (body length per second), in the previous work on untethered soft robots in liquid by far. Further controlling the robots, we demonstrate a soft-robot swarm that can approach a target simultaneously to assure a hit with high accuracy. Without employing any high energy-density power sources or processes, our robot exhibits many attractive merits, such as quietness, no mechanical wear, no thermal fatigue, invisibility and ease of robot fabrication, which may potentially impact many fields in the future.

scholarly journals Morphological and Chemical Tuning of High-Energy-Density Metal Oxides for Lithium Ion Battery Electrode Applications

2017 ◽  
Vol 2 (6) ◽  
pp. 1465-1478 ◽  
Author(s):  
Lei Wang ◽  
Shiyu Yue ◽  
Qing Zhang ◽  
Yiman Zhang ◽  
Yue Ru Li ◽  
...  
Keyword(s):  
Energy Density ◽  
Metal Oxides ◽  
Lithium Ion Battery ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
Battery Electrode

“One-for-All” strategy to design oxygen-deficient triple-shelled MnO2and hollow Fe2O3microcubes for high energy density asymmetric supercapacitors

2019 ◽  
Vol 48 (24) ◽  
pp. 8623-8632 ◽  
Author(s):  
Henan Jia ◽  
Haoyan Liang ◽  
Zhaoyue Wang ◽  
Chun Li ◽  
Xiaohang Zheng ◽  
...  
Keyword(s):  
Energy Density ◽  
Electrochemical Performance ◽  
Metal Oxides ◽  
Specific Area ◽  
High Energy ◽  
High Energy Density ◽  
Ion Transfer ◽  
Asymmetric Supercapacitors

Intrinsically poor conductivity, sluggish ion transfer kinetics, and limited specific area are the three main obstacles that confine the electrochemical performance of metal oxides in supercapacitors.

Mixed solvent exfoliated transition metal oxides nanosheets based flexible solid state supercapacitor devices endowed with high energy density

2019 ◽  
Vol 43 (31) ◽  
pp. 12385-12395 ◽  
Author(s):  
Shibsankar Dutta ◽  
Shreyasi Pal ◽  
Sukanta De
Keyword(s):  
Solid State ◽  
Energy Density ◽  
Transition Metal ◽  
Metal Oxide ◽  
Metal Oxides ◽  
Specific Capacitance ◽  
Transition Metal Oxides ◽  
Mixed Solvent ◽  
High Energy ◽  
High Energy Density

Mixed solvent exfoliated transition metal oxide nanosheet/SWCNT composite based flexible supercapacitors demonstrate large specific capacitance and high energy density.

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