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词汇 Nickel metal hydride
分类 英语词汇 英语翻译词典
释义

Nickel metal hydride

原声例句
连线杂志

Lithium ion batteries are much smarter than older nickel cadmium or nickel metal hydride rechargeable batteries.

锂离子电池比旧的镍镉或镍金属氢化物可充电电池智能得多。

中文百科

镍氢电池 Nickel–metal hydride battery

(重定向自Nickel metal hydride)
四节AA的镍氢充电电池
NiMH 充电时电量状态与电压关系图
eneloop(3号电池)

镍氢电池(NiMH)是由镍镉电池(NiCd battery)改良而来的,其以能吸收氢的金属代替镉(Cd)。它以相同的价格提供比镍镉电池更高的电容量、较不明显的记忆效应、以及较低的环境污染(不含有毒的镉)。其回收再用的效率比锂离子电池好,被称为是最环保的电池。但是与锂离子电池比较时,却有一定的记忆效应。旧款的镍氢电池有较高的自我放电反应,新款的镍氢电池已俱有相当低的自我放电(与碱电相约),而且可于低温下工作(-20℃)。镍氢电池比碳锌或碱性电池有更大的输出电流,相对地更适合用于高耗电产品,某些特别型号甚至比普通镍镉电池有更大输出电流。

英语百科

Nickel–metal hydride battery 镍氢电池

(重定向自Nickel metal hydride)
Disassembled NiMH AA battery: Positive terminalOuter metal casing (also negative terminal)Positive electrodeNegative electrode with current collector (metal grid, connected to metal casing)Separator (between electrodes)
NiMH charge curve
NiMH cell that popped its cap due to failed safety valve

A nickel–metal hydride battery, abbreviated NiMH or Ni–MH, is a type of rechargeable battery. The chemical reaction at the positive electrode is similar to that of the nickel–cadmium cell (NiCd), with both using nickel oxyhydroxide (NiOOH). However, the negative electrodes use a hydrogen-absorbing alloy instead of cadmium. A NiMH battery can have two to three times the capacity of an equivalent size NiCd, and its energy density can approach that of a lithium-ion battery.

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