active material


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active material

[′ak·tiv mə′tir·ē·əl]
(electricity)
A fluorescent material used in screens for cathode-ray tubes.
An energy-storing material, such as lead oxide, used in the plates of a storage battery.
A material, such as the iron of a core or the copper of a winding, that is involved in energy conversion in a circuit.
In a battery, the chemically reactive material in either of the electrodes that participates in the charge and discharge reactions.
(electronics)
The material of the cathode of an electron tube that emits electrons when heated.
(nucleonics)
A material capable of releasing substantial quantities of nuclear energy during fission.
References in periodicals archive ?
As the reactivity of the active material of the negative electrode of conventional nickel-cadmium batteries is reduced at low temperatures, charging/discharging under 0 deg C was difficult with the previous products*3.
The amount of active material can be significantly reduced if it is not used as a substrate to provide mechanical support.
Ion Technology's unparalleled ease of production and high energy density for a given volume is made possible by the fact that the active material needs no separator between it and the two poles.
To create the material, scientists from the research facility and from the state-run Tohoku University in Sendai, Miyagi Prefecture, combined benzene, commonly used as a solvent, and silica, used as a drying agent in confectioneries, with an active material.
Weight for weight saffron and Safrante contain the same amount of active material, but the instant solubility means usage rates of 50% or less, and a cost reduction of 30-40%.
Making the active material in the battery a thin film allows for very fast charging and discharging, but reduces the capacity to nearly zero because the active material lacks volume to store energy.
Hutchinson of Paris, France has obtained a patent for a paint or varnish composition comprised of from 10-50 parts by weight of at least one polyurethane in aqueous emulsion form; from 10-30 parts by weight of at least two acrylic polymers or copolymers in aqueous emulsion form; from 10-70 parts by weight of mineral or organic fillers; from 5-20 parts by weight of processing aids; and from 0-10 parts by weight of crosslinking agent; from 40-150 parts by weight of water; wherein the parts are based on the weight of active material in the composition; wherein the at least two acrylic polymers or copolymers are chosen in such a way that one has a glass transition temperature between 0[degrees]-5[degrees] C and the other has a glass transition temperature between 40[degrees]-30[degrees] C.
It is possible to produce microcapsules containing high loads of the core active material and which have protection against oxidation.
Contract notice: Project broadband infrastructure in planning regions of the country brandenburg - fiberglass 2020 planning region 5 north - delivery of active material for the development of broadband infrastructure in the state of brandenburg, planning region 5 north.
Firstly, there are fears that it may contain traces of chemical or radio active material and secondly another point of contention is the fact that there is a North Korean government official onboard, which prompts questions on the credibility of the claim that the ship is a merchant vessel.
EKFA-3600 is 100% active material and is also available in a 50% active version marketed as EFKA3650.