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Experimental Investigation of Asymmetrical Capacitors for Electric Propulsion
SAE Technical Paper Series, 2014<div class="section abstract"><div class="htmlview paragraph">Investigation into electric propulsion continues to be an area of hopeful research since the pioneering age of aviation. However, more recent global awareness of carbon emissions on the planet and the desire to create more efficient systems has reinvigorated new life into the ...
George Matsoukas, Noor Ahmed
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A novel electrodes collocation for asymmetric electrochemical capacitor
International Journal of Nanomanufacturing, 2014The Li4Ti5O12 and LiNi1/3Co1/3Mn1/3O2 electrode materials are prepared by solid state reaction by one step. The structures and morphologies of the LiNi1/3Co1/3Mn1/3O2 and Li4Ti5O12 electrode materials are characterised by X-ray diffractometry (XRD) and scanning electron microscopy (SEM).
Jiping Zhu +3 more
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Analysis of electrodes matching for asymmetric electrochemical capacitor
Journal of Power Sources, 2009Abstract Asymmetric electrochemical capacitor was categorized into two types: a battery-type electrode|capacitor-type electrode capacitor and a capacitor-type electrode|capacitor-type electrode capacitor. When designing asymmetric electrochemical capacitor, the influences of both current density and the electrode's potential window were taken into ...
Jianling Li, Fei Gao
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Journal of Power Sources, 2004
Abstract New concepts have arisen in recent years concerning configurations of the so-called hybrid charge-storage devices in which a faradaic, rechargeable battery-type electrode is combined with a non-faradaic, electrochemical, double-layer type of electrochemical capacitor electrode, the combination now being referred to as an “asymmetric” device.
Wendy G. Pell, Brian E. Conway
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Abstract New concepts have arisen in recent years concerning configurations of the so-called hybrid charge-storage devices in which a faradaic, rechargeable battery-type electrode is combined with a non-faradaic, electrochemical, double-layer type of electrochemical capacitor electrode, the combination now being referred to as an “asymmetric” device.
Wendy G. Pell, Brian E. Conway
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Asymmetric Conduction and Stability of Polymer Tantalum Capacitors
ECS Journal of Solid State Science and Technology, 2015Conduction asymmetry and DC leakage (DCL) current variations with time were investigated in Polymer Hermetically Sealed (PHS) Ta capacitors. The hermetic design facilitates the control of the atmosphere inside these Ta capacitors, in particular the amount of moisture, and maintains it during long-term testing.
Y. Freeman +4 more
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2021 12th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC), 2021
In this article, a novel Boost Fifteen-level Flying-Capacitor (BFFC) inverter is suggested. The proposed inverter employs eleven switches, four diodes, two capacitors, and three voltage sources to generate a boosted output voltage. The boosting characteristic of the proposed inverter is obtained by using the capacitors serried to the input voltage ...
Jaber Fallah Ardashir +4 more
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In this article, a novel Boost Fifteen-level Flying-Capacitor (BFFC) inverter is suggested. The proposed inverter employs eleven switches, four diodes, two capacitors, and three voltage sources to generate a boosted output voltage. The boosting characteristic of the proposed inverter is obtained by using the capacitors serried to the input voltage ...
Jaber Fallah Ardashir +4 more
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Asymmetric hybrid capacitor based on Co3O4 nanowire electrode
Ionics, 2020In this work, Co3O4 nanowires grown on Ni foam have been synthesized through a facile hydrothermal approach, revealing large capacity of 310.4 C g−1 and superior cycling stability of 80.3% capacity retention after 6000 cycles. The asymmetric supercapacitors were fabricated based on Co3O4//AC device, which delivers an energy density of 0.4 mWh cm−3 at ...
Yue Zhao +4 more
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An extendable asymmetric boost multi‐level inverter with self‐balanced capacitors
International Journal of Circuit Theory and Applications, 2021AbstractThis paper proposes a basic asymmetric boost 35‐level inverter topology that can be extended to earn higher gains and levels. The proposed structure benefits from following advantages: extendibility, voltage boosting capability, natural voltage balancing of capacitors, low average voltage stress on semiconductors and large ratio of number of ...
Mahdi Karimi, Paria Kargar, Kazem Varesi
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A New Asymmetric Switched-Capacitor Inverter for Photovoltaic Systems
2020 IEEE 9th International Power Electronics and Motion Control Conference (IPEMC2020-ECCE Asia), 2020This paper presents a new switched-capacitor multi-level inverter (SCMLI) for photovoltaic systems which can eliminate the leakage current. The traditional SCMLI suffer from the H-Bridge to obtain negative levels, which create variable common mode voltage (CMV) and so generates the leakage current.
Mehdi Samizadeh +7 more
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Asymmetric electronic deformation in graphene molecular capacitors
International Journal of Quantum ChemistryAbstractAsymmetric deformation density analysis is applied on bilayer graphene flakes as molecular capacitors to identify the extent of asymmetric distribution of electrons and holes when exposed to bias voltage. Three triangular, orthorhombic, and hexagonal symmetries for graphene flakes are considered in two sizes and electric field potential is ...
S. Salehfar, S. M. Azami
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