Electric vehicles have a lot of fire in China. It is believed that consumers everywhere have already felt that city streets can often see time-sharing leased electric vehicles that are plugged in. It is expected that sales of new energy vehicles will account for 2% of total car sales in 2017.
I. Some Difficulties in Electric Cars Entering the Heart of the People
At present, Chinese consumers have several common negative impressions on electric vehicles. It is inconvenient for them to have high prices, short mileage, and slow charging. They also need huge subsidies from the state and can't replace fuel vehicles at this stage.
Judging from the models sold on the market, this is also true. About 70% of the sales are similar to the A00 and A0 small electric vehicles of the older generation. The cruising range is usually around 150 kilometers. After the national subsidy is around 50,000, it is still more than 50,000. .
Really able to play a role in the family of A or more cars, SUV to choose from too few models, cruising range is basically 200-300 kilometers, subsidy after 150,000 -300,000, cross-city use is still a bit imaginary.
As for plug-in hybrid vehicles that can be recharged and burned even less, pure electric cruising is generally only about 60 kilometers. Due to the existing engines and batteries with 10 degrees or so, the state subsidies are even less. expensive.
In fact, the listing issue is ultimately the current vehicle power lithium battery in the energy density, cost, and did not make a breakthrough in the market satisfaction, whether it is a three yuan lithium battery or lithium iron phosphate battery.
Second, charge 1 minute, life 800 kilometers
Not long ago, a patent message issued by the American Fisker Automotive Co., Ltd. caught the attention of the whole world. It developed a solid-state battery that can increase the endurance of an electric vehicle to 804 kilometers and can use only one minute of charging time. In 2020 through the progress of materials and manufacturing technology, the cost will be reduced to one-third of conventional lithium batteries.
Solid-state batteries have thus entered the field of vision of most people. In fact, the principle is the same as the current liquid-state lithium batteries. The biggest difference is that the electrolyte becomes a solid state, relying on the advantages of density and structure to collect more charged ions. One end can conduct more current, so the battery capacity is greatly increased.
The most significant characteristics of solid-state batteries are two, one is the energy density, many laboratories have already done 300-400Wh/kg, which is 2.5-3 times that of traditional lithium batteries, the other is more secure, to a greater extent to eliminate the battery Cracks or high temperature and other accidental combustion hazards.
Of course, solid-state batteries also have disadvantages, that is, overall low conductivity, large internal resistance, charging speed is slow, as to how the United States Fisker car to do a charge for one minute, life of 800 kilometers, that is its core secret,
In general, if the solid-state battery can be truly market-oriented and low-cost, it will completely solve the current core problems of the popularization of electric vehicles, new energy vehicles will truly kill gasoline vehicles.
Third, 2020 is expected to put into commercial applications
The marketization of hydrogen fuel cells is still far away. The advantages of solid-state lithium batteries in terms of safety and energy density are of course concerned by many organizations. They have been placed high hopes by car companies and R&D institutions around the world to become the breakthrough for the next generation of automotive power batteries.
The marketization of hydrogen fuel cells is still far away. The advantages of solid-state lithium batteries in terms of safety and energy density are of course concerned by many organizations. They have been placed high hopes by car companies and R&D institutions around the world to become the breakthrough for the next generation of automotive power batteries.
The familiar names of Volkswagen, BMW, Honda, Toyota, Hyundai, Nissan, Panasonic, Samsung, Mitsubishi, Ningde, and Apple all have been actively planned for R&D. In the future, there will be more companies joining the solid-state battery R&D camp.
Judging from the timing of various plans, solid-state batteries are expected to be put into commercial applications in 2020. With the changes in the scale and cost of penetration, marketization will become more mature in 2025.
summary:
In 2020, China will completely withdraw subsidies for new energy vehicles. Judging from the current state of affairs, the increase in cost and energy density of traditional liquid lithium batteries in the next three years will be limited. By then, pure electric vehicles will not have an absolute advantage over hybrid vehicles. The breakthrough is of great significance.
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