It thus ACTS as a supercapacitor.

因此它的作用相当于一个超级电容器。

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The other way is called a supercapacitor.

另外一种是超级电容器。

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The other way is called a supercapacitor. This stores energy only at the surface of the electrode.

另一种方法称为超级电容，它只使用电极的表面储存电能。

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Strictly speaking the composite behaves not like a battery but more like a capacitor, or rather a supercapacitor, says Dr Greenhalgh.

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Khare's device, a black, rectangular type of supercapacitor just over an inch long, can charge a cell phone battery in 20 to 30 seconds, she said.

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"I developed a new supercapacitor, which is basically an energy storage device which can hold a lot of energy in a small amount of volume, " she told KPIX 5.

CNN: Recharge your cellphone in 30 seconds