Results 11 to 20 of about 305,492 (342)

Electrochemical Capacitors for Energy Management [PDF]

open access: yesScience, 2008
Rapid storage and efficient delivery of electrical energy in heavy-duty applications are being enabled by electrochemical ...
John R. Miller, P. Simon
semanticscholar   +3 more sources

Materials for electrochemical capacitors. [PDF]

open access: yesNature Materials, 2008
Electrochemical capacitors, also called supercapacitors, store energy using either ion adsorption (electrochemical double layer capacitors) or fast surface redox reactions (pseudo-capacitors). They can complement or replace batteries in electrical energy
P. Simon, Y. Gogotsi
semanticscholar   +3 more sources

Heterovalent-doping-enabled atom-displacement fluctuation leads to ultrahigh energy-storage density in AgNbO3-based multilayer capacitors

open access: yesNature Communications, 2023
AgNbO_3 has a potential for high power capacitors due to its antiferroelectric characteristics. Here, the authors achieve multilayer capacitors with energy-storage density of 14 J·cm^−3 by heterovalent-doping-enabled atom-displacement fluctuation ...
Lifeng Zhu   +10 more
semanticscholar   +1 more source

Microscopic Simulations of Electrochemical Double-Layer Capacitors

open access: yesChemical Reviews, 2022
Electrochemical double-layer capacitors (EDLCs) are devices allowing the storage or production of electricity. They function through the adsorption of ions from an electrolyte on high-surface-area electrodes and are characterized by short charging ...
Guillaume Jeanmairet   +2 more
semanticscholar   +1 more source

Recent Advances in Carbon-based Nanomaterial for Multivalent-ion Hybrid Capacitors: A review

open access: yesEnergy & Environmental Science, 2023
Hybrid capacitors are emerging because of their ability to store large amounts of energy, cycle through charges quickly, and maintain stability even in harsh environments or extreme temperatures.
Xuan Gao   +11 more
semanticscholar   +1 more source

Supercritical Relaxor Nanograined Ferroelectrics for Ultrahigh‐Energy‐Storage Capacitors

open access: yesAdvances in Materials, 2022
Supercritical relaxor nanograined ferroelectrics are demonstrated for high‐performance dielectric capacitors, showing record‐high overall properties of energy density ≈13.1 J cm−3 and field‐insensitive efficiency ≈90% at ≈74 kV mm−1 and superior charge ...
Aiwen Xie   +8 more
semanticscholar   +1 more source

A Multi-Channel Fast Impedance Spectroscopy Instrument Developed for Quality Assurance of Super-Capacitors [PDF]

open access: yes, 2021
Conventional experimental methods for testing the performance of super-capacitors include the measurement of capacitance through charge and discharge, measurement of equivalent series resistance (ESR) and measurement of self-discharge and the equivalent ...
Woojin Choi   +4 more
core   +1 more source

Charge storage mechanism in nanoporous carbons and its consequence for electrical double layer capacitors [PDF]

open access: yes, 2010
Electrochemical capacitors, also known as supercapacitors, are energy storage devices that fill the gap between batteries and dielectric capacitors. Thanks to their unique features, they have a key role to play in energy storage and harvesting, acting ...
Gogotsi, Yury   +3 more
core   +1 more source

An Overview of Condition Monitoring Techniques for Capacitors in DC-Link Applications

open access: yesIEEE transactions on power electronics, 2021
Capacitors are widely used in dc links of power electronic converters to balance power, suppress voltage ripple, and store short-term energy. Condition monitoring (CM) of dc-link capacitors has great significance in enhancing the reliability of power ...
Zhaoyang Zhao   +4 more
semanticscholar   +1 more source

Integrated capacitors for conductive lithographic film circuits [PDF]

open access: yes, 2001
This paper reports on fabrication of low-value embedded capacitors in conductive lithographic film (CLF) circuit boards. The CLF process is a low-cost and high speed manufacturing technique for flexible circuits and systems. We report on the construction
Harrey, PM, Evans, PSA, Harrison, DJ
core   +1 more source

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