For a given voltage a capacitor will store a certain amount of charge.
电容会在一个给出的电压值下储存一定的电荷。
2
The idea is to harvest the energy and store it using a combination of a super capacitor and a lithium battery.
这个概念是利用一个超级电容器和一个锂电池组成的复合装置来收集和储存能量。
3
However, in contrast to batteries, a capacitor cannot store enough energy to power anything that lasts longer than a flash — some fraction of a second.