New energy vehicles: Let cars break up with gasoline?

As an important means of production and transportation, cars are becoming more and more widely integrated into people's lives. However, cars are highly dependent on the petrochemical industry. With the shortage of energy, the intensification of environmental pollution, and the upgrading of technological and industrial changes, traditional cars are facing a considerable crisis. Therefore, since the country has vigorously developed new energy vehicles, more and more automakers have entered the field of new energy vehicles. Many of the new forces in the new energy vehicle manufacturing industry have developed into well-known brands in just a few years, and their market value has exceeded that of many traditional auto companies that have been in business for decades or even hundreds of years. It can be said that new energy vehicles have become the backbone of the transformation and upgrading of the automotive industry.

Power sources of new energy vehicles

New energy vehicles refer to vehicles that use unconventional automotive fuels as their power source (or use conventional automotive fuels and adopt new on-board power devices), and integrate advanced technologies in vehicle power control and drive to form vehicles with advanced technical principles, new technologies, and new structures.

New energy vehicles can be roughly divided into the following categories based on fuel power:

1. Pure electric vehicles. The power of the car is provided by the battery, which provides electrical energy to the motor to drive the motor and thus propel the car. The rechargeable batteries of pure electric vehicles mainly include lead-acid batteries, nickel-cadmium batteries, nickel-metal hydride batteries and lithium-ion batteries. Power batteries can be recharged and used repeatedly, which is a new direction for the development of automobile power.

2. Hybrid vehicles. These vehicles use traditional fuels and are equipped with electric motors or engines to improve low-speed power output and fuel consumption. At present, the mainstream of hybrid vehicles in China is gasoline hybrid, while the development of diesel hybrid vehicles is also relatively rapid internationally.

3. Fuel cell vehicles. Under the action of a catalyst, hydrogen, methanol, natural gas, gasoline, etc. are used as reactants to burn with oxygen in the air in the battery, generating current through chemical reactions, and the car is driven by an electric motor. For example, hydrogen fuel cell vehicles are a truly pollution-free, zero-emission means of transportation, and are also the most ideal alternative to traditional vehicles.

Disadvantages and technical barriers of new energy vehicles

Although the national and local governments have introduced many preferential policies to promote the development of new energy vehicles, the new energy vehicle market still faces many problems. Hybrid vehicles have certain difficulties in maintenance and repair due to their complex power output and switching structure. In addition, during long-distance driving, hybrid vehicles have limited ability to reduce emissions, and their consumption is not much different from that of traditional vehicles. Electric vehicles can achieve short-distance noise-free and zero-pollution driving, but if the road conditions are complex or the driving distance is long, they will face the problem of insufficient power in the power battery, that is, poor endurance.

In addition, after repeated use, the power batteries of electric vehicles will more or less have problems with reduced storage capacity and power. Although the price of new energy vehicles themselves is not high, the cost of repairing batteries is high. In addition, the charging efficiency of power batteries needs to be improved. In addition, the construction of charging piles in many cities or regions in my country is not perfect, which leads to major problems and obstacles in the popularization of electric vehicles. The main disadvantage of hydrogen-powered vehicles is that there is still no effective and cheap way to obtain hydrogen fuel, and the price of hydrogen fuel and the energy consumption of hydrogen fuel production cannot be solved.

With the continuous improvement of people's environmental awareness and the emergence of the oil crisis, it has become a social consensus to carry out technological development in the automotive industry. The new energy vehicle industry should seize the opportunity of development, continuously improve key technologies, strive to open up new markets, and achieve new breakthroughs in the development of new energy vehicles. my country is a developing country, but it is on the same starting line as other countries in the field of new energy vehicles. In this regard, my country's automotive industry should keep up with the trend of the times, strive to innovate its own advantages, and occupy a place in the future development of new energy vehicles.

New Energy Vehicles

Renewable energy biofuels

Renewable energy refers to substances that provide useful energy to humans continuously from the natural environment. Compared with fossil energy, its production and use have the natural characteristics of continuous or cyclical nature, such as hydropower, wind power, solar energy, geothermal energy, ocean energy, biomass energy, etc. In recent years, biofuels have become an important direction for the development and utilization of renewable energy because they can better replace gasoline and diesel made from petroleum. It generally refers to solid, liquid or gaseous fuels composed of or converted from organisms, including fuel ethanol, biodiesel and aviation biofuel, etc., which have good storability and transportability. my country has made great achievements in the development of biofuels, especially the production of fuel ethanol using grain as raw materials, which has initially formed a scale.