Each pixel consists of an anode and cathode separated by a thin, organic membrane.
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The cathode, for instance, has to be made into a fine tip, or set of tips.
It consists of a negative electrode (cathode) and a positive electrode (anode), with a vacuum between them.
We know very well what is the best material to use as the cathode in those fuel cells.
Traditionally, cathode-ray tubes (CRTs) were somewhat different, depending on whether they were being used for computer monitors or televisions.
Or intense heat could have melted the physical separator between anode and cathode.
The source itself works a little like the cathode-ray tube of a television.
A123 has developed a battery that uses a doped lithium nanophosphate electrode (cathode) that eliminates combustible oxygen from the system.
With a big enough voltage between cathode and anode, they will leap at great speed from the one to the other.
Cathode ray tubes (CRTs) were an important component of TV and computer screens, accounting for 50% to 70% of their price.
They've tested the anode and the electrolyte, but they are still working on the final piece--the battery's cathode--using this same method.
TVs made with bulky cathode-ray tubes, initially made Japanese firms look bad.
The red, green and blue components of the signal are fed into three separate high-definition cathode-ray tubes (in effect, fancy black-and-white televisions).
These run from anode to cathode and thus create an electric current.
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Under Chief Executive Steve Jobs, Apple has mastered the art of turning microprocessors and cathode ray tubes into objects of mass desire.
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When you use a battery, the lithium ions then move from the anode to the cathode and let loose of electrons in the process.
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The South Korean firm is among a number of manufacturers that have been accused of fixing prices of TV and computer monitor cathode-ray tubes.
There are several sorts of fuel cell, but all consist of two electrodes (an anode and a cathode) separated by a material called an electrolyte.
"We'd like to stamp the final cathode on top, " says Hammond.
When you charge a battery, lithium ions travel from the cathode to the anode, where the anode holds onto the lithium ions to store the energy.
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But now the simple invention of a cathode ray tube, transforming light into electrons, registering their impact on the magnetic tape, had torn the curtain away.
Many companies are working on coming up with better materials for the cathode or the anode in order to increase the energy density of the battery cell.
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They're also brighter than cathode-ray displays, thanks to improvements in design and manufacture, as well as the introduction of blue LEDs, made widely available in the mid-1990s.
Bacteria oxidize the organic matter and, in the process, produce electrons that run from the anode to the cathode within the fuel cell, creating an electrical current.
When it came to scoreboards for sports stadiums, incandescent bulbs were no match for cathode-ray tubes (CRTs) used in the giant video displays pioneered by Sony and Mitsubishi.
Even in the United States of America in the year 2011, there are still people who use candy bar phones, watch cathode ray TVs and buy compact discs.
Electrons, which are negatively charged, build up at the cathode.
Once an isotope causes the crystal to flash, a photosensitive cathode releases electrons into a vacuum tube where a chain reaction produces a cascade, as in the Geiger counter.
The spheres are then dissolved to leave a 3D-metal scaffold onto which a nickel-tin alloy is added to form the anode, and a mineral called manganese oxyhydroxide to form the cathode.
At the cathode, the protons and the electrons react with oxygen from the air to make water which, to the joy of environmentalists, is the only waste product of such a cell.
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