Search 250 million research papers

Cathode

Jan W. Gooch · 2011

Cited by 0

Cathode

Van Nostrand's Encyclopedia of Chemistry · 2005

Cited by 0

Cathode

V. Orsic Muthig, E. Dewald, D. H. H. Hoffmann et al. · 2011

To investigate the space charge neutralization effects in the extraction gap of a laser ion source (LIS) [1] a high current density electron beam with low energy spread is needed. The transient hollow-cathode discharge (THCD) source [2] has the required characteristics. The THCD is a pulsed hollow-cathode glow discharge that operates at low gas pressure (10-3- 1 mbar) and high applied voltage. Characteristic for this type of discharge is that during the fast voltage breakdown, discharge currents of several kA are reached. At the beginning of the current increase a high current, well focused electron beam is emitted at the anode. The unique feature of the THCD produced beam is its self-focused, space charge neutralized propagation in the background gas. At the beginning of its propagation the beam charge is only partially neutralized. We use the channel spark geometry (Fig. 1) which consists of a hollow cathode and a capillary tube made of Al2O3.

Cited by 0

Cathode

Jan W. Gooch · 2007

Cited by 0

CATHODE

A-to-Z Guide to Thermodynamics Heat and Mass Transfer and Fluids Engineering · 2008

Cited by 0

cathode

O. H. Chin, C. S. Wong · 2001

Cited by 0

Cathode

Desconhecido · Bulletin of Miscellaneous Information (Royal Gardens Kew) · 2008

Cited by 0

Cathode

Dongqing Li Prof. · 2008

Cited by 0

cathode

2008

Citation: 'cathode' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.C00905 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms. Requests for commercial usage of the compendium should be directed to IUPAC.

Cited by 0

Cathode

Van Nostrand's Scientific Encyclopedia · 2005

Cited by 0

Cathode

Nguyen Q. Minh, Takehiko Takahashi · Elsevier eBooks · 1995

Cited by 26

Cathode

Hawley's Condensed Chemical Dictionary · 2007

Cited by 0

Cold-cathode, high-cathode potential oscillograph

Taüber The Trüb · Journal of Scientific Instruments · 1938

Cited by 0

Cathode to Cathode Lithium Ion Battery Recycling

Yan Wang, Eric Gratz, Joseph Heelan et al. · ECS Meeting Abstracts · 2016

Due to their high energy density, long lifespan and light weight, lithium ion (Li-ion) batteries accounted for $11.8 billion dollars in sales in 2012, that makes up 60% of total portable battery sales and 37% of total battery sales. The same factors also make them the best candidate for use in hybrid electric vehicles (HEVs) and electric vehicles (EVs). Currently in the US almost all spent lithium ion batteries are land filled, compared to other types of batteries, such as lead acid batteries, in which 97% are recycled. This presents a large amount of environmental waste. Based on current trends in Li-ion battery use, if Li-ion batteries are not recycled, global lithium reserves are expected to be depleted by 2050. Additionally, recycling Li-ion batteries presents an economic opportunity in through the recovery of key valuable metals, such as cobalt, nickel and copper. Currently, most Li-ion battery recyclers focus on recovering cobalt from LiCoO 2 cathode material or through the recovery of Co and Ni from the cathode materials via a high temperature pyrometallurgical approach. We propose a new methodology that uses a low temperature hydrometallurgical approach that has the advantage of having high efficiency of recovery. This process works regardless of the Li-ion batteries chemistry, shape and size and recovers Co, Ni, and Mn in the form of their hydroxides, which when sintered with recovered Li 2 CO 3 produces new LiNixMn y Co z O 2 cathode materials. The regenerated cathode material, LiNi x Mn y Co z O 2 , has been tested and exhibits good electrochemical performance. In addition to the cathode material, copper, aluminium, steel, etc are also recycled. Figure 1

Cited by 1

Cathode Sheaths in the Cathode-Tied Configuration

Marcel P. Georgin · 2025

The sheath physics of the cathode-tied electrical configuration is studied theoretically following the approach of Hobbs and Wesson [1] for emissive sheaths. The effect of the thruster body’s contact with the ambient plasma on the cathode sheath is evaluated for in the thermally limited and space-charge limited regimes. When the emitter is thermally limited, the sheath structure tends to be only weakly affected. In the space-charge limit, the emitter sheath voltage can be increased up to the floating voltage. The effects of potential gradients and the consequences for electric propulsion are discussed.

Cited by 0

Thackeray’s Cathode

Purdue University Press eBooks · 2022

Cited by 0

Cathode material

Новіков, Анатолій Олександрович, Новиков, Анатолий Александрович, Novikov, Anatolii Oleksandrovych · Repository of Vinnytsia National Technical University (Vinnytsia National Technical University) · 2009

Катодний матеріал складається зі сплаву міді і алюмінію.

Cited by 0Open access

Sulfur Cathode

Hwa, Y, cairns, EJ · eScholarship (California Digital Library) · 2021

Cited by 0

Cathode Materials

Jang-hoon Park, Ju-hyun Cho, Jong-su Kim et al. · 2011

Abstract:We demonstrate a new surface modification of high-voltage lithium cobalt oxide (LiCoO 2) cathode active materials for lithium-ion batteries. This approach is based on exploitation of a polarity-tuned gel polymer electrolyte (GPE) coating. Herein, two contrast polymers having different polarity are chosen: polyimide (PI) synthesized from thermally curing 4-component (pyromellitic dianhydride/biphenyl dianhydride/phenylenediamine/oxydianiline) polyamic acid (as a polar GPE) and ethylene-vinyl acetate copolymer (EVA) containing 12 wt % vinyl acetate repeating unit (as a less polar GPE). The strong affinity of polyamic acid for LiCoO 2 allows the resulting PI coating layer to present a highly-continuous surface film of nanometer thickness. On the other hand, the less polar EVA coating layer is poorly deposited onto the LiCoO 2, resulting in a locally agglomerated morphology with relatively high thickness. Based on the characterization of GPE coating layers, their structural difference on the electrochemical performance and thermal stability of high-voltage (herein, 4.4 V) LiCoO 2 is thoroughly investigated. In comparison to the EVA coating layer, the PI coating layer is effective in preventing the direct exposure of LiCoO 2 to liquid electrolyte, which thus plays a viable role in improving the high-voltage cell performance and mitigating the interfacial exothermic reaction between the charged LiCoO 2 and liquid electrolytes.

Cited by 0

Grid Cathode

Francesco Santagata, Augusto Sarti, Stefano Tubaro · 2013

In this paper we propose a digital simulation of an analog amplifier circuit based on a grounded-cathode amplifier with parametric tube model. The time-domain solution enables the online valve model substitution and zero-latency changes in polarization parameters. The implementation also allows the user to match various types of tube processing features.

Cited by 0