Battery electric developments in vehicle technology
Friday, November 6th, 2009The key technology for electric cars, battery powered drive motor and electronic control technology. In the lithium-ion battery technology, technology of super-capacitor based on a combination of many companies in the technological transformation and integration, research and development of dual power, electric cars, electric cars and so much energy or to build a pilot system for power plants, develop ultra-fast loading, technology, The objective is to overcome the difficulties of pure electric vehicles, to add power lines and continued its shortcomings short distance.
1, lithium-ion battery technology
In battery technology with a lightweight, energy storage great, great power, no pollution (also no secondary pollution), long life, self-discharge coefficient is low, the temperature fit a wide range of benefits such as lithium-ion battery technology is gradually replacing lead and nickel hydrogen cells, a pure electric car is one of basic technologies. From October 2006 until more than 20 countries have larger deposits of the world for a lithium-ion battery research and development, such as Fuji Heavy Industries, NEC, Toshiba, Johnson Controls, Degussa AG / enax, Sanyo Electric , Panasonic EV Energy and so on. Lithium-ion batteries in China in research, there are a number of indicators over the USABC made in 2010 under the long-term target. Currently, experts estimate that the lithium-ion battery technology needs to be further developed. First, the company said most of the data purely electric car battery testing laboratory, such as acceleration performance, the charging time, mileage continues it needs to be in an outdoor environment complex, the operation itself, to further verify the reliability and production-batch quality control oriented. On the other hand, China’s lithium-materials separator ion battery necessary to rely on imports, costs must be reduced. In addition, some experts believe that the battery life is not long, resulting in high costs for the use and become a major problem in marketing.
Second, ultra-fast loading, technology
Using the traditional method of slow charge, pure electric cars are filled with a battery for several hours. While this ensures a relatively long range drive, but because you want to install a battery, an increase of vehicle weight and cost of the requirement of consistency of the battery is higher. Now, fully loaded battery technology emerged, for a long time (rechargeable 2000 times), there is no memory, can be high load capacity and the discharge characteristics can be filled in minutes, 70% ~ 80% of electricity. Toshiba described above lithium can be rapidly rechargeable, ion technology, which is a fast-charge technology, which for the marketing of electric cars, has provided technical support. However, there are specialists question the battery-load faster than the speed of over-charging and charging excessive discharge in May deteriorate the battery in the battery group collaborative work environment, causing the collapse of the collapse battery as a whole. Many companies are today active in research and development in this area, but also made some progress. 2005 “Reference News” reported the Nevada state-owned companies have developed nano-cells, only 6 minutes of full power, the use of time for each charge to 10 times the current rechargeable batteries so that the battery times the number of far-reaching 20000 times, provided by the maximum current can be up to this 3 times. He also became the pure electric battery technology for cars, one of the trends of development.
Thirdly, the combination of battery and capacitor technologies
Super-fast charging capacitor, no memory load and discharge, high charge-discharge cycles, no secondary pollution, excellent features, but shortcomings in fast discharge, lithium-ion batteries with high capacity storage , storage, benefits from a long time, but the comparison of the long charging time. Take the two long, combining the use of electric cars, more traditional electric cars can have oil “electricity” and “zero emissions” The main advantage, but it also has a single charge of road long (300 km), speed (up to 100 km / h), the performance of high efficiency energy recovery, represents the latest development directions of pure electric cars. Currently, the joint development of Fuji Heavy Industries Ltd. and NEC, “Lithium-ion capacitor, the energy density of 30 Wh / kg for the last four times the capacitor has reached a practical level for the car electric. Ruihua China Shanghai Group has developed environmentally friendly electric hybrid super capacitor electric cars, and the corporate network state in this regard has been conducted three types of cells - Capacitors modified hybrid vehicle engineering and testing performance, and conduct demonstration application.
1, lithium-ion battery technology
In battery technology with a lightweight, energy storage great, great power, no pollution (also no secondary pollution), long life, self-discharge coefficient is low, the temperature fit a wide range of benefits such as lithium-ion battery technology is gradually replacing lead and nickel hydrogen cells, a pure electric car is one of basic technologies. From October 2006 until more than 20 countries have larger deposits of the world for a lithium-ion battery research and development, such as Fuji Heavy Industries, NEC, Toshiba, Johnson Controls, Degussa AG / enax, Sanyo Electric , Panasonic EV Energy and so on. Lithium-ion batteries in China in research, there are a number of indicators over the USABC made in 2010 under the long-term target. Currently, experts estimate that the lithium-ion battery technology needs to be further developed. First, the company said most of the data purely electric car battery testing laboratory, such as acceleration performance, the charging time, mileage continues it needs to be in an outdoor environment complex, the operation itself, to further verify the reliability and production-batch quality control oriented. On the other hand, China’s lithium-materials separator ion battery necessary to rely on imports, costs must be reduced. In addition, some experts believe that the battery life is not long, resulting in high costs for the use and become a major problem in marketing.
Second, ultra-fast loading, technology
Using the traditional method of slow charge, pure electric cars are filled with a battery for several hours. While this ensures a relatively long range drive, but because you want to install a battery, an increase of vehicle weight and cost of the requirement of consistency of the battery is higher. Now, fully loaded battery technology emerged, for a long time (rechargeable 2000 times), there is no memory, can be high load capacity and the discharge characteristics can be filled in minutes, 70% ~ 80% of electricity. Toshiba described above lithium can be rapidly rechargeable, ion technology, which is a fast-charge technology, which for the marketing of electric cars, has provided technical support. However, there are specialists question the battery-load faster than the speed of over-charging and charging excessive discharge in May deteriorate the battery in the battery group collaborative work environment, causing the collapse of the collapse battery as a whole. Many companies are today active in research and development in this area, but also made some progress. 2005 “Reference News” reported the Nevada state-owned companies have developed nano-cells, only 6 minutes of full power, the use of time for each charge to 10 times the current rechargeable batteries so that the battery times the number of far-reaching 20000 times, provided by the maximum current can be up to this 3 times. He also became the pure electric battery technology for cars, one of the trends of development.
Thirdly, the combination of battery and capacitor technologies
Super-fast charging capacitor, no memory load and discharge, high charge-discharge cycles, no secondary pollution, excellent features, but shortcomings in fast discharge, lithium-ion batteries with high capacity storage , storage, benefits from a long time, but the comparison of the long charging time. Take the two long, combining the use of electric cars, more traditional electric cars can have oil “electricity” and “zero emissions” The main advantage, but it also has a single charge of road long (300 km), speed (up to 100 km / h), the performance of high efficiency energy recovery, represents the latest development directions of pure electric cars. Currently, the joint development of Fuji Heavy Industries Ltd. and NEC, “Lithium-ion capacitor, the energy density of 30 Wh / kg for the last four times the capacitor has reached a practical level for the car electric. Ruihua China Shanghai Group has developed environmentally friendly electric hybrid super capacitor electric cars, and the corporate network state in this regard has been conducted three types of cells - Capacitors modified hybrid vehicle engineering and testing performance, and conduct demonstration application.