Most of the current electric vehicles are equipped with lead-acid batteries. Because lead-acid batteries are low in cost and cost-effective. In the 18th century, France's Plante invented a battery that used lead as an electrode. The unique feature of this type of battery is that when the battery is used for a period of time to reduce the voltage, it can be reversed to cause the battery voltage to rise. Because this battery can be charged, it can be used repeatedly, and later called it "lead acid battery"
The battery is an essential part of the car. Can be divided into traditional lead-acid batteries and maintenance-free batteries. Since the battery uses lead-calcium alloy as the grid, the amount of water decomposition generated during charging is small, the evaporation of water is also low, and the sealed structure of the outer casing is used, and the sulfuric acid gas released is also small, so it is compared with the conventional battery. , has no need to add any liquid, the wiring pile head, the power storage time is long, etc.
Car batteries are all open batteries, and the capacity is large, mainly because of the large space of the car, and after the car is started, the built-in engine of the car can charge the battery.
Many electric vehicle batteries use non-dimensional batteries. First, the electric vehicle has a small space. There is no engine to recharge during the running of the vehicle, and the user has no ability to maintain the battery.
Some electric vehicles now use lithium batteries because they are smaller, lighter, and larger than lead batteries, and do not require human maintenance, but lithium batteries are relatively expensive. Now I know the difference between electric car battery and car battery.