Car industry chain, battery, motor, electric control as the core of future development. This form, the future development of the automotive industry, electric cars will no doubt be a weathervane in the national policy under the rapid development of 2015, the electric car ownership will reach 100 million scale, while China Automotive Safety and Energy National Laboratory Ouyang Ming Gao is confident that in Shanghai, when the car battery costs will be reduced by half.
863 as a national energy-saving and new energy vehicles, leader of major projects, expert, and the automotive industry, “second Five-Year” plan members of the Group, Ouyang Minggao optimistic people on the new energy vehicles, or clear is that the future of electric cars was just around the corner. But a closer observation of the current level of domestic production of automotive batteries and battery technology to lower costs by 2015 half of the battery, or the fear just a talk.
In fact, now is still in the stage of early stage of development of electric vehicles, the major car firms and even some small factories are staking their claims in the field of electric vehicles, but in fact not much is really its own R & D capabilities, most of the technologies are from foreign countries bought, or with domestic battery production enterprises purchase. In order to achieve more in the car battery energy storage, the battery needs to do much. Combined with the special condition car battery while in the bigger more problems to be solved. Such as: electric vehicle battery pack composed by a number of cells stacked in series. If the battery pack in a battery capacity slightly lower than the other battery, then after several charge / discharge cycles, its charge state will gradually deviate from the other battery. When there is no periodic charge state balance with the other battery, then the battery will eventually discharge into the depth of the state, resulting in damage to the battery discharge must be resolved for this balance. And to solve this problem is again from the battery material and battery charge and discharge control two aspects.
The battery is rich and varied options are: lead-acid batteries, nickel-based batteries (nickel hydrogen and nickel metal hydride batteries, nickel and nickel zinc batteries Fu), sodium ß cell (sodium sulfur batteries and a a sodium nickel chloride batteries), rechargeable lithium batteries, air batteries, lithium iron phosphate batteries and other types.
Battery charge and discharge surveillance is an important factor affecting the cost and the controller area network communication interface (CAN) bus. To communication interface, this bus is the communication overhead is relatively low, but only for low-interference environment. The controller area network bus in a wide range of automotive applications, with error detection, fault tolerance and other characteristics, communication cost disadvantage is that large, high cost of materials.
Admittedly, lithium iron phosphate is expected to become the center of the future of automotive batteries, but the selection of the battery types, each of the selected depot, and each has its advantages in the application of technology, combined with the ultimate automotive products, except for weak electric cars mixing , electric car ownership in the market is not great, even if the promotion of national policies, to rush in 2015, so many of the depot, the purchase of the battery is difficult to form large enough to reduce the cost of bulk purchases, and where technology is constantly updated models are constantly improving, the car battery as bespoke and handmade in general, the possibility of reducing costs is questionable.
China is now the era of market economy, the state then the development of new energy vehicles, including positive, from which no one would like to share. Great demand on the battery in this process, raw materials prices is an inevitable trend. Also the battery storage of raw materials due to the need for more energy, more precious materials needed, process more complex refining process, the production of more stringent, further increase the cost of production was reasonable.
Then added back, even though the battery is more inclined to reduce the cost of bubble, but the good news is that China is a new energy - electric vehicles on the road to continuous improvement will be achieved over time into every household electric vehicles to meet There is no doubt true to the era of green energy.
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