All batteries work by converting electrical energy into chemical energy during charging, and then converting it back into electricity as the battery is discharged.
所有电池是靠充电的同时通过将电能转换为化学能而工作，随后，当电池放电的时候，再将化学能转化为电能。
2
Without the chemical-electrical conversion, a capacitor can be charged and discharged much more rapidly than a battery, last longer and weigh less.
电容器不依靠电-化学转化。 相比电池，电容器能够更快的充电和放电，持续使用时间更长，并且更轻。
3
The material has both active components, through which lithium ions move when the battery is charged or discharged, and inactive ones that help stabilize the active material and extend battery life.