Tesla batteries can generally be charged and discharged 300-500 times. It is better for lithium batteries to be partially discharged, rather than completely discharged, and try to avoid frequent and complete discharge. Once the battery left the production line, the clock began to run. Whether you use it or not, the service life of lithium batteries is only two to three years.
There are lithium-sulfur batteries and lithium-air batteries being studied abroad, and zinc-air batteries and aluminum-air batteries suitable for power exchange. The energy density of lithium-sulfur battery can reach 2600Wh/kg, lithium-air battery can reach 3500Wh/kg, and the theoretical energy density of aluminum-air battery is 8 100Wh/Kg. Tesla's rapid power exchange method and device are likely to be pre-arranged to prepare for future technology monopoly. At present, the battery capacity of Tesla is 83Kw/h, the density is 200wh/Kg, and the driving distance is 480km. Even if the density is increased five times to 1000wh/Kg, power exchange will become a natural choice.
Extended data:
Vehicle battery life:
The design life of the battery is 27 months, which is more economical for general family cars. Many batteries in new cars last for 3-4 years, but they must be replaced once, usually about 2 years. Taxis are more expensive. Single bus can be used for one year, and double bus can be used for about 8- 10 months.
Several factors that affect the battery life are: car condition, road condition and driver's habits.
Generally, the newer the car, the less the battery, because the motor is easy to use and the battery can be fully charged. After the old car, especially after the replacement of two large motor generators, the difference between the original products and the refurbished products in the market is huge, so it is easy for the owner not to replace the original accessories, and then the battery is more prone to failure.
Off-road batteries are often easy to break down, and car batteries have a technical index to express their anti-vibration performance! If the standard battery works in a bad environment and often vibrates, of course it is not good.
References:
Automobile storage battery-Baidu encyclopedia