Of electricity storage: power battery-powered electric vehicles

Of electricity storage: power battery-powered electric vehicles

People who frequently travel on the aircraft may have found that starting this year lithium battery dell laptop battery backup of electronic products can no longer be checked, but must carry, it is mainly to prevent the lithium battery short-circuit caused the fire. In fact, the lithium battery is not as unsafe as it seems the surface, it may even become the next most important vehicle power batteries.

Power battery to be research

There are a variety of new energy vehicles by category, but according to the most stringent standards, only a pure electric vehicle is the full sense of the new energy vehicles. At present, the main driving force of new sources of energy vehicles, including nickel-hydrogen batteries, fuel cells and lithium-iron batteries, lithium batteries and the iron has been the industry's recognized as Laptop Battery a motive power in the most promising direction of development.

At present, China can produce power with the lithium iron phosphate battery manufacturers are not many, in addition to the famous BYD, there Tianjin power of God, Vientiane Group, CITIC Guoan, among others. Chinese Academy of Sciences Institute of Physics, Huang Xue-Jie told reporters: "ability to develop a more cost-effective, more reliable electric cars lithium battery is an important prerequisite for large-scale commercial ability, as lithium iron phosphate battery good security. However, iron phosphate Lithium phosphate batteries accounted for 80% of the cost of the battery, this is still not made. "

It is understood that China's major iron phosphate KD476 lithium battery energy density can reach 80Wh/kg, close to the international advanced level. National Development and Reform Commission automobile Expert Group, the China Association of Automobile Manufacturers Executive Vice President and Secretary-General Chang Shu-lin told reporters, "Our power battery development objective is to lower costs by 2020 two-thirds of the energy density more than double . "

Nanchang FRIEND Technology Co., Ltd. has launched a A-level pure electric cars, charging a mileage of 180 to 220 kilometers per hour about 90 km / hour battery life about 25 thousand kilometers. Nanchang FRIEND Operating Officer weeks LU Qing told reporters: "The price of the car about 18 million, if taking into account national and local subsidies, consumer price actually paid about 60,000 yuan. The biggest piece of the cost of car is the battery, the battery cost is about 6-70000 yuan. "

Full sail ahead of Electric Vehicles

Although the lithium iron phosphate batteries are still expensive, and other industrial problems, but the electric car industry has not remained pending,GD761 the current domestic enterprises in the electric vehicle power management, motor control, spends much ink on the field.

Nanchang FRIEND Operating Officer weeks LU Qing told reporters: "Our cars have a self-developed power management and motor control technology, now is certified through the United States, we have car exports to the U.S. cost about 10 yuan / vehicle. "

In addition, the Nanchang University in Jiangxi Province under the Innovation and Technology Development Co., Ltd. Tai Cheong has been dedicated to electric vehicles, power modules, research and industrialization, the current power management systems, motor control systems, super capacitors and other key technologies to achieve a breakthrough. Public information, Nanchang University and Jiangxi Changhe Automobile Co., Ltd. based on the Changhe Ideal II's new co-developed the model of Inspiron E1505 pure electric vehicles, have complete independent intellectual property rights, has now entered the industrialization stage.

A staff member of the company told reporters, "Chang major innovation in electric vehicles, power modules, industrialization began in October of this year, now has an auto enterprises in Jiangxi reached a preliminary letter of intent from the major innovation to the businesses Cheong Electric automotive power modules for the production of electric vehicles. "

However, lithium iron phosphate battery giant BYD Liu, senior director of the right of the right balance between technology and the market has a more sober understanding. He told reporters: "I personally believe that for the electric car, the business model is more important than the battery technology."

At present, the domestic operating model of pure electric cars is still not clear, a rare charging station outlets, charge the way the industry Inspiron 6400 and replacement batteries for fast charging mode has its own supporters. Pure electric vehicles operating mode restricting the electric car will probably be a major bottleneck in the development.