1·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·Electric cars have been around for decades, but never in enough Numbers that they would affect the grid, or require mass rollouts of charging equipment.
电动汽车已经出现十几年了，但是从没有达到一定的数量以致能影响供电网络或者需要大量新的充电设备。
3·The company wants to build an infrastructure for charging electric cars.
这个公司想要修建给电力汽车充电的基础设施。
4·But that should change in the future as batteries' storage capacity goes up, and charging time comes down.
但在未来随着电池蓄电能力上升，充电时间缩短，这些都会发生改变。
5·So an equal duration of charging creates the same distance of EV travel in both cars.
因此，充电时间相等的情况下，这两款车在电动模式下的行驶里程相当。