A battery by definition is a collection of cells. So the cell is a little can of chemicals. And the challenge is taking a very high-energy cell, and a large number of them, and combining them safely into a large battery.
电池的定义是电池的集合。细胞是一罐化学物质。现在的挑战是把一个高能量的电池，以及大量的电池，安全地组合成一个大电池。
标签
Collection
Battery
Safely
Chemical