Electric cars need a slogan.

Control the taste of the wind and experience the exquisiteness of beauty.

Introduction of electric vehicle: electric drive vehicle, also known as electric drive vehicle. Electric vehicles are divided into AC electric vehicles and DC electric vehicles. Generally speaking, an electric vehicle is a vehicle that uses batteries as energy source and converts electric energy into mechanical energy through controllers, motors and other components to control current and change speed.

Invention: The first electric car was made in 188 1 year, and the inventor was Gustav Truff, a French engineer. This is a tricycle driven by lead-acid battery and DC engine. Nowadays, great changes have taken place in electric vehicles, and there are many kinds.

Economic contribution: The share of electric vehicles in the national economy is not very high. However, it conforms to the national trend of energy conservation and environmental protection, greatly facilitates short-distance transportation, and plays an important role in the national economy mainly through energy conservation and environmental protection.

Classification: electric vehicles can be divided into electric bicycles, electric motorcycles, electric unicycles, electric four-wheelers, electric tricycles and electric scooters according to the number of tires and structural types; According to the power sources, there are pure electric vehicles, extended-range electric vehicles, hybrid electric vehicles and fuel cell vehicles.

Performance:

(1) Lead-acid battery (lead-acid colloid battery) has low cost and stable performance, which is used by most electric vehicles in the market.

(2) Lithium-ion batteries (commonly called lithium batteries) have high cost but large specific energy; High specific power; Small self-discharge; No memory effect; Good cycle characteristics; Wide working temperature range; No environmental pollution, etc.

(3) The gel battery has high cost and stable performance. There are few electric cars using this battery in the market. Only a few enterprises are equipped with this high-performance battery, which has the highest safety factor. The service life is much longer than the advantages of the first two types of batteries and the advantages of self-repair function, which is also the leading position in the industry. The advantage is that the lead-acid battery does not have it, which avoids the disadvantage of layered lead-acid battery.

Service life: For rechargeable batteries, we generally measure their service life by charging times. The cycle life of nickel-cadmium battery is about 300~700 times, the charging times of nickel-hydrogen battery are generally 400~ 1000 times, and the charging times of lithium-ion battery are 500~800 times. The service life of rechargeable batteries is not only affected by raw materials and manufacturing technology, but also closely related to the charging and discharging methods and practical use of batteries.