Conventional lithium-ion or nickel metal hydride rechargeable batteries contain active material that is placed into a thin film.

传统的锂离子以及金属氢化物镍蓄电池中所含有的活性物质被放置在一个薄膜中。

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Lithium metal batteries are generally non-rechargeable and contain metallic lithium.

锂金属电池通常是不可充电的，且内含金属态的锂。

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With all the electronic devices in our lives these days, it makes environmental (and financial) sense to switch to rechargeable nickel metal hydride (NiMH) and lithium ion (Li-Ion) batteries.

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