A small battery heats up thin metal threads in the cloth to change colors or forms.

一个小电池加热布料上的细金属线来改变颜色或形状。

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But high oil prices and concern over climate change mean there is now more of an incentive than ever for researchers to join the quest for better battery technologies.

高昂的油价以及对气候变化的忧虑，意味着研究者们将以前所未有的动力去加入追求更好性能的电池技术的行列。

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The first reason was we thought we could change the battery.

第一个原因是我们认为我们可以改良电池。

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Like its older cousin, it alerts the users with a subtle change in the battery or antenna mark.

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Blatner also noted that you can't change the device's battery.

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And if Sadoway is right, the two ways to make sure it does not happen again are to change the design of the lithium-ion battery or replace it with a safer, but less-powerful battery technology.

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