High current density cathodes for crt use.

Doped LiFePO4 Cathodes for High Power Density Lithium Ion Batteries

Olivine LiFePO4 has received much attention recently as a promising storage compound for cathodes in lithium ion batteries. It has an energy density similar to that of LiCoO 2, the current industry standard for cathode materials in lithium ion batteries, but with a lower raw materials cost and an increased level of safety. An inherent limitation of LiFePO4 acknowledged by researchers studying t...

Simulation of Field-emission Cathodes for High Current Electron Injectors

From the prospect of the high average current electron injectors, the most important advantage of the fieldemission cathodes is their capability to generate very large current densities. Simulation of field-emission cathodes is complicated by the large range of spatial dimensions: from sub-micron scale, for a single field-emission tip, to millimeter scale, for a field-emitter array. To overcome...

Lifetime of ferroelectric Pb„Zr,Ti...O3 ceramic cathodes with high current density

Electron emission from ferroelectric cathodes is investigated, it is commonly suggested as an electron source for different applications due to its special characteristics such as high current density, easy treatment, and operation. In this experimental research, a lifetime of lead zirconate-titanate ceramic cathode with composition related to a ferroelectric phase was studied. The strong plasm...

High Efficiency, High Density, PolyPhase Converters for High Current Applications

As logic systems get larger and more complex, their supply current requirements continue to rise. Systems requiring 100A are fairly common. A high current power supply to meet such requirements usually requires paralleling several power regulators to alleviate the thermal stress on the individual power components. A power supply designer is left with the choice of how to drive these paralleled ...

High Critical Current Density MgB