Results 21 to 30 of about 331,613 (287)

The Influence of Electroless Silver Deposition on Electrochemical Properties of the Steel Cathode Current Collector of Alkaline Batteries

open access: yesInternational Journal of Electrochemical Science, 2010
The influence of electroless silver layer on the electrochemical behavior of steel cathode current collector was examined in rechargeable alkaline MnO2-Zn batteries.
M. Ghaemi   +4 more
doaj   +1 more source

Heterostructure unipolar spin transistors [PDF]

open access: yes, 2004
We extend the analogy between charge-based bipolar semiconductor electronics and spin-based unipolar electronics by considering unipolar spin transistors with different equilibrium spin splittings in the emitter, base, and collector.
G. Vignale   +3 more
core   +2 more sources

Thin Film Energy Storage Device with Spray‐Coated Sliver Paste Current Collector

open access: yesETRI Journal, 2017
This paper challenges the fabrication of a thin film energy storage device on a flexible polymer substrate specifically by replacing most commonly used metal foil current collectors with coated current collectors.
Seong Man Yoon   +3 more
doaj   +1 more source

МОДЕЛЮВАННЯ АВАРІЙНОГО РЕЖИМУ «ЗНЯТТЯ-ВІДНОВЛЕННЯ» НАПРУГИ НА СТРУМОПРИЙМАЧІ ЕЛЕКТРОВОЗІВ ПОСТІЙНОГО СТРУМУ

open access: yesElektrotehnìka ta Elektroenergetika, 2012
Створено математичну модель електромагнітних процесів в системі електричної тяги постійного струму в режимі «відрив-піднімання» струмоприймача електрорухомої одиниці.
P. Ye. Mihalichenko
doaj   +1 more source

A Deep Learning Based Method for Detecting of Wear on the Current Collector Strips’ Surfaces of the Pantograph in Railways

open access: yesIEEE Access, 2020
In pantographs, current collector strips transmit the electrical energy they receive from the catenary to the locomotive and provide the necessary power for the locomotive's movement.
Gulsah Karaduman, Erhan Akin
doaj   +1 more source

An experimental study of a hemi-spherical solar collector under Egyptian climate

open access: yesCase Studies in Thermal Engineering, 2021
Traditional flat plate collectors have shown, under many investigations, low system operating efficiency, which prompted the idea of designing new solar collectors operating with higher efficiency.
Mohammed A. Ebaid   +2 more
doaj   +1 more source

EGaIn coated 3D-Cu foam as a self-healing current collector for lithium ion batteries

open access: yesElectrochemistry Communications, 2021
Traditional lithium-ion batteries are prone to cracks and perforations in extreme environments, which could cause electrochemical performance degradation or even safety problems.
Xiaoxuan Liu   +5 more
doaj   +1 more source

The Effect of a Carbon Fiber Layer Between the Cathode and the Current Collector on Battery Cell Performance

open access: yesFibers
Contact resistance between the cathode active material (CAM) and the Al current collector can be reduced by applying carbon coatings to the Al current collector surface.
Jaswinder Sharma   +7 more
doaj   +1 more source

Development of a Direct Methanol Fuel Cell with Lightweight Disc Type Current Collectors

open access: yesEnergies, 2014
The direct methanol fuel cell (DMFC) adopts methanol solution as a fuel suitable for low power portable applications. A miniature, lightweight, passive air-breathing design is therefore desired.
Yean-Der Kuan   +2 more
doaj   +1 more source

Graded collector heterojunction bipolar transistor [PDF]

open access: yes, 1984
A graded collector heterojunction bipolar transistor is proposed. The graded collector improves device speed performance at high current densities by reducing the influence of the Kirk ...
Chiu, L. C.   +3 more
core   +1 more source

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