active material


Also found in: Dictionary.

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 ?
[USPRwire, Fri Aug 30 2019] The cathode active material is responsible for supplying ions while the battery is in charging or discharging mode.
[ClickPress, Fri Aug 30 2019] The cathode active material is responsible for supplying ions while the battery is in charging or discharging mode.
The objective is to produce the active material in Port Talbot in order to supply the cell capacity production in millions of units from 2020-30 We l s h - man and chief executive of Oxis Energy, Huw Hampson-Jones, said: "With support from both the state government of Minas Gerais and the Welsh Government, including the investment made by the Development Bank of Wales, Oxis is working towards the commercialisation of mass production of lithium sulphur cells for electric batteries in order to address our target markets - aviation, marine and buses and trucks."
A lot of effort has been focused on the development of active material chemistries that increase energy density.
As the battery undergoes several charge-discharge cycles, bits of the poly-sulphide can go into the electrolyte, so that over time the battery gradually loses active material.
An important requisite for a good coating process is a homogeneous and stable dispersion of the active and inactive components in the solvent [11-15], The dispersion has to be homogenous for all the components: solid particles in slurry have different sizes, in particular active material particles are usually in the few microns range while carbon black (CB) particles are significantly smaller, less than 100 nm.
The UHPB battery is fitted with Primax unique and core technology, and fitted within an XFrame and GPS (Grid Protection System) which helps the battery to perform longer by reducing aging rate of active material and by preventing grid growth.
In general, the chemical reaction of the active material in a battery is slower at lower temperatures, thus resulting in reduced battery performance.
A commercial LaNi5-based alloy (Mm[Ni.sub.3.68][Co.sub.0.78][Mn.sub.0.36][Al.sub.0.28]) powder from Japan Metals & Chemicals Co, MgNi and MgTi-[10%.sub.w] Pd alloy powders obtained by high energy ball milling [3, 4] were studied as active materials. 0.2 g of active material was manually mixed with 0.2 g of copper powder.
It's not the raw extract that they are interested in, but an active material within it.
UK Publication No: GB2462298, filed 31.07.2008 A method of manufacturing an electronic device comprising a device substrate supporting a patterned layer of active material