“材料要坚韧稳定，但从通电的角度看也需要让电离子顺利通过，”格林浩尔博士说。

"You want it very rigid and stiff, but from an electrical point of view you also want it to allow ions to flow through the material," says Dr Greenhalgh.

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严格来说这种复合材料与电池并不相似，而更像是一个电容器，或者说是个超级电容器，格林浩尔博士说道。

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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