active material

基本解释

Conducting tubes are used in wires and electrodes but semiconducting tubes are the active material for transistors or solar cells.
导电管用于电线和电极中，用于晶体管或太阳能电池中的半导体管采用了活性材料。
Once the lithium ions are free, they move only in and out of the active material, and the inactive material continues to play its stabilizing role.
一旦锂离子是免费的，他们只移动进出的活性物质，不活跃的物质继续发挥稳定作用。
The material has both active components, through which lithium ions move when the battery is charged or discharged, and inactive ones that help stabilize the active material and extend battery life.
该材料具有两种有效成分，通过它移动时的锂离子电池充电或放电，这有助于稳定活性物质，延长不活跃的电池寿命。

Conveyor belts carried long, wafer-thin strips of metal into printing-press-like rollers, which coated them with electrode-active material.
NEWYORKER: Green Giant
However, it is not possible to anneal the metal oxides, an active material, at this high temperature on flexible polymer substrates.
ENGADGET: Korean scientists solve flexible battery riddle (video)
It focused narrowly on areas in and around active genes, ignoring the 98.5% of genomic material known as "junk DNA." This process pinpointed 25, 000 genetic landmarks called SNPS (single nucleotide polymorphisms, or "snips"), places where a single dna letter varies from one person to the next.
FORBES: The Suggestive Gene

活性物质
The utilization of lead acid battery active material is universally very low though its technology has reached the maturation. Especially, the utilization of positive active material is much worse.
虽然铅酸电池的技术已经比较成熟，但普遍存在活性物质利用率比较低的问题，特别是正极活性物质的利用率更是不理想，正极的性能决定着整个电池的性能。
活性材料

活性物质
As a positive active material, the performance of nickel hydroxide was the key deciding entire property of MH-Ni batteries.
作为正极活性物质，氢氧化镍的性能是决定MH-Ni电池整体性能的关键。
活性材料