Pure electric A-class car PK traditional car also need power battery to reduce efficiency?

“2016 is a year of pure electric vehicle reflection, and it is also the year of transformation of pure electric drive vehicles in the world.” For the current problems in the development of new energy vehicles in China, Ouyang Minggao, executive vice president of China Electric Vehicles 100, will be on December 23rd. Said at the 2017 press conference of the China Electric Vehicles 100 People's Association.

He believes that at this stage, there are a series of challenges and problems in the development of electric vehicles in China, mainly reflected in the mismatch between the charging infrastructure and the development progress of the whole vehicle. However, in the long run, the development route of new energy vehicles must be electrified and light. Quantitative and intelligent transformation into a combination of electrification and energy low carbonization, light weight and manufacturing ecology, intelligence and network linkage.

Especially in terms of electrification, China's goal for the next five years is to further enable the newly developed electric vehicles, especially pure electric vehicles, to be commercially competitive.

"The so-called commercial competitiveness is the mainstream mainstream A-class sedan, which competes with the fuel vehicle in terms of performance and price ratio. At present, the whole world is working hard in this direction, such as Tesla Model3 and General Bolt. A cost-effective electric car with a mileage of about 350 kilometers." Ouyang Minggao said.

Ouyang Minggao said, but to meet this requirement, batteries must reduce weight, size and cost. In addition, the specific energy of the battery must be greatly increased, reaching 300-350 watt-hours per kilogram, which is also the goal of China's power battery companies to tackle the next step.

Power battery cost is expected to drop to 1 yuan 1 watt hour

"As we all know, the invention of lithium-ion batteries has only been for 20 years. The actual use of lithium-ion batteries in electric vehicles is less than 10 years. In 2007, the first use of the Nissan Leaf began. It is obvious that the progress of power batteries is very rapid. "Ouyang Minggao said that the technological progress of electric vehicle lithium-ion power batteries has exceeded expectations.

But before, the mainstream view is that compared with other types of electric vehicles, the advantages of pure electric vehicles are mainly reflected in the range of 100 to 150 kilometers, but now with the advancement of lithium-ion battery technology, the mileage is improved. Times, that is, within the range of 300 kilometers, still has an advantage in terms of cost performance.

From a technical point of view, the energy stored per unit weight and unit volume is increasing, and the cost is getting lower and lower, so as to reflect the level and technology of electric vehicles.

The good news is that China's battery costs can be reduced by about 20% per year. According to reports, five years ago, China's power battery price was 5.5-6 yuan per watt hour, last year's average price was about 2.5 yuan, and 2016 was 2.2 yuan. Considering that a large number of electric vehicles are buses, their battery prices will be relatively high. Higher.

"Now the domestic development of electric cars, the lowest system cost is 1.3 yuan per watt hour, the unit cost is about a dollar. The US General Bolt electric car, the unit cost is 150 US dollars a kWh."

According to this standard, the cost of the battery system of 1.3 yuan per watt hour is currently not universally available in the industry, but according to the current 2.2 yuan, it will be reduced by 10% to 20% year by year. By 2020, the cost of the battery system will be 1.3 yuan. Will be achieved.

"Plus recycling to achieve 1 yuan, that is, a kilowatt-hour battery within 1,000 yuan, can be done." Ouyang Ming Gao said.

For a Class A sedan that is cost-effective and wants to be commercially competitive, it consumes about 15 degrees per 100 kilometers. In 2020, it is expected to control the power consumption within 12 degrees, nearly 100 kilometers.

"To achieve this goal, we need to reduce the power consumption through the weight reduction of the whole vehicle and the optimization of the efficiency of the entire drive system and charging. At present, there is still a lot of room for reduction in power consumption. If the above goal can be achieved, the cost of 100 kilometers is about At 10,000 yuan, if the battery can reach 300 kilometers, it is 30,000 yuan. Considering the power saving and maintenance in the life cycle, it will be commercially competitive. This is the next biggest goal of electrification." Ouyang Minggao Say.

Pure electric drive drives comprehensive industrial development

“The background of the pure electric drive technology route was put forward in 2009. The pure electric drive was truly industrialized in 2014. Although the new energy vehicles achieved explosive growth in 2015, they still belong to a relatively extensive development model. The development of automobiles has gradually become more rational. Overall, today, the development of electric vehicles in China has achieved a certain position in the international arena," Ouyang Minggao said.

In fact, in 2015, China's new energy vehicle production and sales ranked first in the world. As sales exceeded 50% of the world, it caused strong international response. Both the government and manufacturers felt the challenge from China. . What is more noteworthy is that in 2016, such as Volkswagen and Toyota of Japan, they have adjusted their technical routes and accelerated the transformation of pure electric drive.

However, the strategic goal of pure electric drive is to promote the all-round development of various types of new energy vehicles through the pioneering industrialization of pure electric power. For hybrid technology, traditional car powers and car companies have advantages over China. For example, the Toyota route is to do hybrid power first, then plug-in hybrid and fuel cells.

As China takes the lead in developing pure electric drive, the development of the battery industry has reached the forefront of the world. The scale of the battery industry has reached the top in the world, and the overall level ranks among the top three in the world. It is also the world's first level in the integrity of the industrial chain. The power battery industry chain, especially battery materials, such as positive and negative materials, has the highest market share in the international market.

"On this basis, we use pure electric power system (battery, motor, electronic control) as the platform, and then develop hybrid power and fuel cells is relatively smooth." Ouyang Minggao said.

According to its introduction, China's plug-in technology development has made progress, BYD Qin, Tang, SAIC Roewe 550, and the upcoming GAC G-MC series-parallel hybrid, both on the engine side and on the hybrid power unit. A breakthrough was made.

At the same time, fuel cell vehicles with deep mixing of fuel cells and power batteries have made great progress, and there will be an internationally competitive conventional deep hybrid power in the next step.

"This is a gradual development process. This development method avoids the direct competition between the electric vehicle industry and the foreign manufacturers in the traditional vehicles, especially the engine and the engine electromechanical coupling device." Ouyang Minggao said that the engine and transmission have been It is a weakness of China's auto industry. Effectively avoiding weak competition is conducive to the development of China's electric vehicle industry. After 2020, it is expected that China's enterprises and foreign companies will be able to go all the way and compete simultaneously.

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