Electric vehicles answer questions

What is an extended-range electric vehicle?

This concept car was launched by Chevroletvolt. It has a small all-electric internal combustion engine car, but the engine does not have any mechanism to directly connect the wheels, and only uses lithium batteries to power it. American Society of Automotive Engineers (American Society of Automotive Engineers) will mean two or more energy storage devices alone or with a power supply.

When the battery is fully charged, the engine shuts down, and the lithium battery provides power to the engine and drives the vehicle. When the lithium battery reaches the preset threshold, the engine generates electricity to power the drive motor and charge the lithium battery.

Pure electric vehicles need to be equipped with more lithium battery cells to achieve a longer battery life. A charging pile or wall box is required for charging. If the battery is over-discharged, it may shorten its service life. Additional electric vehicles can carry fewer lithium batteries than pure electric vehicles and can keep the batteries from being deeply discharged.

What is an electric car?

An electric car is a car driven by electricity. BAIC E150, BYD E6 and Tesla are all pure electric vehicles. If power plants use renewable energy and lower carbon emissions to generate electricity, or if customers choose to charge at low points on the grid, they can further reduce the carbon footprint of electric vehicles.

In 1834, American Thomas Davenport built the first electric car driven by a DC motor, although it did not look like a car. Since the 1990s, signs of oil depletion and the pressure of air pollution have refocused the world’s attention on electric vehicles. GM’s Impact, Ford’s Ecostar, and Toyota’s RAV4LEV have come out one after another.

What is a charging station?

Charging station is a power station for charging electric vehicles, similar to the function of a gas station, and is the focus and pillar of the future development of China’s automobile industry and electric power industry.

What is a plug-in hybrid vehicle?

Hybrid models can be divided into four categories: light, medium, heavy and plug-in.

A vehicle with an intelligent start-stop system is called a light hybrid vehicle; if the braking energy is recovered and the power is driven, it is called a medium hybrid vehicle.

If a car can be independently driven by an electric motor, it is a heavy-duty hybrid vehicle. If the car can be driven by a single electric motor and can be charged from an external power source, it is a plug-in hybrid vehicle.

What is a lithium battery?

Lithium battery is a device that uses lithium ions to move between the positive electrode and the negative electrode. No matter how many times the battery is used, the capacity of the lithium battery will decrease, which is determined by the temperature, which is more obvious in high-current electrons.

Although the batteries used in electric vehicles are usually simply called lithium batteries, the strict definition of lithium batteries is that they contain pure lithium metal and are not rechargeable at one time.

What is a hybrid car?

Hybrid vehicles use two or more energy sources. According to different sources of power, hybrid vehicles can be divided into gasoline-electric or diesel-electric, fuel cell, hydraulic and multi-fuel. As early as 1899, Ferdinand Porsche built the first hybrid car.

Many hybrid vehicles use electric motors and internal combustion engines to reduce energy consumption. But different manufacturers use completely different strategies. Some models use electric motor assistance during high loads, focusing on providing charcoal in the snow. Some models focus on driving the tiger wing when the load is low.

What is carbon fiber?

Carbon fiber composite material is a high-strength, high-modulus, high-temperature resistant fiber. With the same strength, carbon fiber is 50% lighter than steel and 30% lighter than aluminum. Carbon fiber composite materials are expensive to manufacture and have been used in the manufacture of large airplanes and racing cars in the past. The carbon fiber used to make the body of an electric car helps offset the extra weight added by the battery.

Fuel cell is a battery that converts chemical energy in fuel into electrical energy by oxidizing and activating oxygen or other oxidants. Unlike primary batteries, fuel cells require a stable supply of oxygen and fuel to ensure their normal operation. Hydrogen fuel cell is considered to be the future star of automobile power.

What is a fuel cell?

Fuel cell is a battery that converts the chemical energy in the fuel into electrical energy by oxidizing and activating oxygen or other oxidants. Unlike primary batteries, fuel cells require a stable supply of oxygen and fuel to ensure their normal operation. Hydrogen fuel cell is considered to be the future star of automobile power.