scholarly journals Feasibility Design Study of High-Performance, High-Power-Density Propulsion Motor for Middle-Range Electric Aircraft

2020 ◽  
Author(s):  
Ahmed Hebala ◽  
Stefano Nuzzo ◽  
Giuseppe Volpe ◽  
Peter H. Connor ◽  
Paolo Giangrande ◽  
...  
Keyword(s):  
Power Density ◽  
High Power ◽  
High Performance ◽  
High Power Density ◽  
Design Study ◽  
Middle Range ◽  
Electric Aircraft

scholarly journals Hierarchical Carbon Microtube@Nanotube Core–Shell Structure for High-Performance Oxygen Electrocatalysis and Zn–Air Battery

2020 ◽  
Vol 12 (1) ◽  
Author(s):  
Wenfu Xie ◽  
Jianming Li ◽  
Yuke Song ◽  
Shijin Li ◽  
Jianbo Li ◽  
...  
Keyword(s):  
Energy Density ◽  
Power Density ◽  
High Power ◽  
High Performance ◽  
Rational Design ◽  
Specific Capacity ◽  
High Mass ◽  
Core Shell ◽  
High Power Density ◽  
Mass Loading

AbstractZinc–air batteries (ZABs) hold tremendous promise for clean and efficient energy storage with the merits of high theoretical energy density and environmental friendliness. However, the performance of practical ZABs is still unsatisfactory because of the inevitably decreased activity of electrocatalysts when assembly into a thick electrode with high mass loading. Herein, we report a hierarchical electrocatalyst based on carbon microtube@nanotube core–shell nanostructure (CMT@CNT), which demonstrates superior electrocatalytic activity for oxygen reduction reaction and oxygen evolution reaction with a small potential gap of 0.678 V. Remarkably, when being employed as air–cathode in ZAB, the CMT@CNT presents an excellent performance with a high power density (160.6 mW cm−2), specific capacity (781.7 mAhg Zn −1 ) as well as long cycle stability (117 h, 351 cycles). Moreover, the ZAB performance of CMT@CNT is maintained well even under high mass loading (3 mg cm−2, three times as much as traditional usage), which could afford high power density and energy density for advanced electronic equipment. We believe that this work is promising for the rational design of hierarchical structured electrocatalysts for advanced metal-air batteries.

Design of a High Power Density, High Efficiency, Low THD 250kW Converter for Electric Aircraft

2021 ◽  
Author(s):  
Matthew G. Granger ◽  
David Avanesian ◽  
Ralph Jansen ◽  
Susanah R. Kowalewski ◽  
Alex Leary ◽  
...  
Keyword(s):  
Power Density ◽  
High Power ◽  
High Efficiency ◽  
High Power Density ◽  
Electric Aircraft

scholarly journals Blow-spun N-doped carbon fiber based high performance flexible lithium ion capacitors

RSC Advances ◽  
2020 ◽  
Vol 10 (17) ◽  
pp. 9833-9839
Author(s):  
Changzhen Zhan ◽  
Jianan Song ◽  
Xiaolong Ren ◽  
Yang Shen ◽  
Hui Wu ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Energy Density ◽  
Power Density ◽  
High Power ◽  
High Performance ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
High Power Density ◽  
Hybrid Supercapacitors

Constructing flexible hybrid supercapacitors is a feasible way to achieve devices with high energy density, high power density and flexibility at the same time.

Binder-free Fe2N nanoparticles on carbon textile with high power density as novel anode for high-performance flexible lithium ion batteries

Nano Energy ◽  
2015 ◽  
Vol 11 ◽  
pp. 348-355 ◽  
Author(s):  
Muhammad-Sadeeq Balogun ◽  
Minghao Yu ◽  
Yongchao Huang ◽  
Cheng Li ◽  
Pingping Fang ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Power Density ◽  
High Power ◽  
High Performance ◽  
Lithium Ion ◽  
High Power Density ◽  
Binder Free

High-performance Ultracapacitor Electrodes Realized by 3-dimensionally Bicontinuous Block Copolymer Nanostructures with Enhanced Ion Kinetics

2021 ◽  
Author(s):  
Gun Ho Lee ◽  
Byung Jun Park ◽  
Tae Won Nam ◽  
Ye Ji Kim ◽  
Gyu Rac Lee ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Energy Density ◽  
Electrochemical Performance ◽  
Power Density ◽  
High Power ◽  
High Performance ◽  
High Power Density ◽  
Excellent Electrochemical Performance ◽  
Battery Systems ◽  
Critical Challenge

Despite the high power density of ultracapacitors, increasing the energy density to level that of conventional battery systems remains a critical challenge. Here, we report excellent electrochemical performance of three-dimensionally...

scholarly journals Modelling and analysis of vienna rectifier for more electric aircraft applications using wide band-gap materials

2021 ◽  
Vol 2120 (1) ◽  
pp. 012027
Author(s):  
Ling Jin Loong ◽  
Chockalingam Aravind Vaithilingam ◽  
Gowthamraj Rajendran ◽  
Venkatkumar Muneeswaran
Keyword(s):  
Power Density ◽  
High Power ◽  
High Efficiency ◽  
Wide Band ◽  
Wide Bandgap ◽  
High Power Density ◽  
Vienna Rectifier ◽  
Electric Aircraft ◽  
Aircraft Application ◽  
More Electric Aircraft

Abstract This paper presents a comprehensive study on the switching effects of wide bandgap devices and the importance of power electronics in an aircraft application. Silicon (Si), silicon carbide (SiC), and gallium nitride (GaN) are wide bandgap devices that act as a power electronic switch in the AC-DC converter for More Electric Aircraft (MEA) applications. Therefore, it is important to observe their converting efficiency to identify the most suitable wide bandgap device among three devices for AC-DC converters in aircraft applications to provide high efficiency and high-power density. In this study, the characteristics of Si, SIC, and GaN devices are simulated using PSIM software. Also, this paper presents the performance of the Vienna rectifier for aircraft application. The Vienna rectifier using Si, SiC, and GaN devices are simulated using PSIM software for aircraft application. GaN with Vienna rectifier provides better performance than Si and SiC devices for aircraft applications among the three devices. It gives high efficiency, high power density, low input current THD to meet IEEE-519 standard, and high-power factor at mains.

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