Development Status of Lithium Battery Electric Vehicles

Before the Beijing Olympics, a large lithium battery charging station was built in the Beijing Olympic Village. This charging station provides energy for 50 lithium battery electric vehicles that shuttle between the Olympic Village and venues during the Games. In order to achieve the goal of zero emission in the central area of ​​the Olympic Village during the Olympic Games, Beijing has put 50 lithium battery buses with zero emission, low noise, environmental protection and energy saving for 24-hour operation. 

In China, ZAP announced in late October 2007 that it would form a joint venture with Shandong Jindalu Automobile Company to produce ZAP's XEBRA small lithium battery electric vehicles. The joint venture will design and manufacture a new generation of low-cost advanced lithium battery electric vehicles that can be powered by natural gas, electricity, ethanol and other fuels. The new plant has a production capacity of 4,000 vehicles per month. A standard lead-acid battery powered XEBRA lithium battery electric vehicles can travel 40km on a single charge. ZAP has two XEBRA vehicles in Denmark using new lithium batteries, an advanced battery management system developed by Danish technology company Lithium Balance.

In 2008, 100 to 150 buses of Shanghai New Energy's "electricity instead of oil" buses were put into operation on the 20th, 45th, 148th, 604th and 980th bus routes. The lithium battery electric vehicles developed by Shanghai Electric Power Company and Ruihua Group has made great progress, and the practical application of the whole vehicle has reached the international level, and has passed the acceptance of national authoritative institutions and experts. Under the pressure of rising oil prices, it is necessary to promote lithium battery electric vehicles in order to achieve the goal of energy conservation and emission reduction. This new technology mixes supercapacitors and lithium-ion batteries to give full play to the former's fast charging, no memory charge and discharge, high cycle times, no secondary pollution and the latter's large power storage and long storage time. In addition to the advantages of "electricity instead of oil" and "zero emission", it can also use low-cost electricity to charge at night and drive during the day, which is conducive to reducing vehicle operating costs. According to reports, the maximum driving distance of lithium battery electric vehicles can reach 100~300km after a full charge, the maximum speed can reach 80~100km per hour, the time for a full charge is less than 3 hours, and the power consumption per km is less than 1.6kW·h. Test data show that the use of lithium battery electric vehicles can reduce exhaust emissions by 92% to 98% and save energy by 70% to 80%. In 2008, in addition to bus lines, Shanghai also launched pilot projects and promotions of electrification of emergency vehicles, cement mixers, street sweepers and garbage removal vehicles.

1. Development Status of Lithium Battery Electric Vehicles of SAIC Motor

SAIC Motor Corporation Limited and A123 Systems Corporation of the United States jointly announced in mid-December 2009 that the two parties will establish Shanghai Jiexin Power Battery System Co., Ltd. to jointly develop, produce and sell automotive power batteries according to the share ratio of 51:49. system, and provide technical services and other after-sales services. This move will help SAIC achieve the industrialization development strategy of new energy vehicles, and form a breakthrough in the industrialization of battery systems, a key component of new energy vehicles, to prepare for the advent of the era of low-carbon economy. Founded at MIT in 2001, A123 is a Nasdaq-listed company leading in lithium iron phosphate battery technology. A123 produces hundreds of tons of cathode material powder and millions of battery cells each year, and with the support of the U.S. federal government, the state of Michigan and the Department of Energy's advanced technology automotive manufacturing incentive program, builds a world-class large-scale lithium-ion battery Cell and battery system production capacity. SAIC Motor and A123 have cooperated in the development of lithium battery electric vehicles prototype projects, and the two sides have a good foundation for cooperation. The newly established Shanghai Jiexin Power Battery System Co., Ltd. will focus on the development and production of automotive power battery systems, that is, components such as battery modules, battery management, cell balancing, sensors and monitoring, thermal management, safety management, and physical integration. Carry out professional customer-oriented development, integration and production, and launch complete energy storage system solution products. Shanghai Jiexin Power Battery System Co., Ltd. will provide products and services with advanced technology, reliable quality and comprehensive cost advantages for the Chinese automobile industry.

As an active pioneer in China's new energy industry, SAIC Motor Corporation has clearly put forward the industrialization development goal of lithium battery electric vehicles: in 2010, the Roewe 750 medium-hybrid hybrid sedan with a comprehensive fuel saving of 20% will be put on the market in batches; In 2012, the Roewe 550 plug-in strong hybrid sedan, which saves more than 50% of fuel, will be launched in batches; in the same year, SAIC's own brand lithium battery electric vehicles will also be launched to the market to truly achieve zero emissions. As a result, SAIC will take the lead in realizing the industrialization of lithium battery electric vehicles in China.

As the global automotive partner of the 2010 Shanghai World Expo, SAIC provided nearly 1,000 new energy vehicles in four categories including pure electric, super capacitor, fuel cell and hybrid power to the 2010 World Expo. The application and display of nearly 1,000 lithium battery electric vehicles will be a highlight of the 2010 Shanghai World Expo. High-intensity and long-term operation put forward strict requirements on the safety, reliability and comfort of the Expo lithium battery electric vehicles. SAIC will develop lithium battery electric vehicles with reliable performance and leading technology in accordance with the operation requirements of the Expo, helping the Expo traffic to achieve the green goal of "zero emissions in the park and low emissions in the surrounding area".

SAIC's competitive advantage in realizing the industrialization of new energy is that it has the most complete new energy vehicle industry chain in China. After continuous exploration and accumulation, SAIC has laid out a relatively complete auto parts system, laying a solid foundation for the integrated development of lithium battery electric vehicles. As a leading domestic auto manufacturer, SAIC insists on "independent innovation, combination of internal and external, and walking on two legs". While seeking international cooperation, it actively cultivates domestic parts suppliers, and finally forms a strategically safe and autonomously controlled industrial chain system. At present, the plug-in hybrid electric coupling drive technology developed by SAIC has entered the prototype trial production stage. This technology effectively circumvents the technical barriers of domestic and foreign hybrid products such as Toyota and GM. It is a more compact and efficient electric drive gearbox. It is expected to be installed on SAIC lithium battery electric vehicles in 2012. In early 2009, SAIC Lithium Battery Electric Vehicles Division established Jieneng Company, which focuses on the development of "three power" core technologies such as battery, motor and electronic control.

2. The development status of BYD's lithium battery electric vehicles

My country's self-owned brand automobile company BYD, which took five years to successfully develop the world's first lithium battery electric vehicles that does not rely on professional charging stations, the BYD F3DM dual-mode electric vehicle, was officially launched in December 2008. At present, only GM, Toyota and BYD have mastered dual-mode technology internationally. BYD DM dual-mode electric vehicle broke through the two major technical difficulties of repeated charging and household socket charging, and was the first among the three companies to realize commercialization. The Chinese are at the forefront of the world in the field of dual-mode vehicles. BYD Company specializes in the manufacture of rechargeable batteries, and in 2003 it was involved in the production of automobiles. The hybrid car will be launched in 14 cities in China and is expected to be exported to the United States in 2010. BYD's hybrid vehicle has a range of 100km in full battery mode and is priced at 150,000 yuan. The maximum speed can reach 120km/h, and the driving range on a single charge can reach 120~150km, achieving zero emissions and zero pollution. BYD announced on January 13, 2009 that it would bring plug-in hybrid and electric vehicles to the US market in 2011. BYD Auto will launch BYD electric cars in 2011 and build a production plant in the United States.

On February 16, 2009, Chery's first self-developed pure electric vehicle, the S18 electric vehicle, rolled off the production line. Chery S18 electric car is a high-speed pure electric car developed on the S18 vehicle platform. The whole vehicle is equipped with a 336V40kW high-power electric drive system and a 40A.h high-performance lithium iron phosphate battery. Charging is fast and convenient for consumers, just use 220V civilian charging, the charging time is generally 4~6h; it can also be quickly charged, and it can be charged to 80% of the battery in half an hour. As the leader of its own brand vehicles, Chery started electric vehicle research as early as 2001. In 2004, the "National Energy-saving and Environmental Protection Vehicle Engineering Technology Research Center" settled in Chery. Relying on the center, Chery has undertaken a number of national "863" A major project on energy saving and lithium battery electric vehicles has achieved a series of major achievements. In terms of key components and core technologies of lithium battery electric vehicles, a complete set of key components research and development capabilities have been formed, covering motors, motor drive systems, DC/DC, advanced power batteries, battery management systems, and vehicle controllers. The mass production capacity has been initially formed, and the core technology, calibration technology and test verification technology for the development of lithium battery electric vehicles have been mastered. According to Chery's lithium battery electric vehicles development plan, Chery has completed the research and development of high-performance low-emission gasoline engines, weak hybrid systems, high-pressure common rail high-speed direct-injection diesel engines, moderate hybrid systems, flexible fuel vehicles, and pure electric vehicles. In terms of hybrid power, China's first BSG hybrid car, the Chery A5 BSG hybrid car, was launched on January 10, 2009. In 2009, it also launched a series of new energy products such as moderate hybrid system ISG.

Lithium battery electric vehicles were launched in Cenxijin, Guangxi in February 2009. These lithium battery electric vehicles were independently developed by Qixing Jingjin Technology Industry Group. From the appearance, it uses electric power to drive, and technically it has reached the market requirements. These lithium battery electric vehicles use a lithium battery with a charger weighing more than ten kilograms, which can be charged by ordinary household power. At present, the goal of enterprise research and development is to continue to increase the capacity of the car battery and try to extend the driving time after a single charge; Through a series of technical improvements, the market price of this car is expected to be around 100,000 yuan.

Lithium battery electric vehicles only take 20 minutes to charge once, and the new pure electric minibuses with a maximum travel distance of more than 300km have been put into production in Jilin Province, my country, and the first batch of products rolled off the production line in June 2009. This new type of lithium battery electric vehicles use lithium iron phosphate as the power battery material. The material has high safety and a cycle life of more than 2,000 times, which can fully meet the battery requirements of electric vehicles. Compared with traditional pure electric vehicles, It can greatly shorten the charging time and increase the mileage of lithium battery electric vehicles. It is suitable for fixed-line running vehicles such as taxis, minibuses, and buses. At present, Liaoyuan Tongkun New Energy Technology Co., Ltd., the manufacturer of this new type of power battery material, has cooperated with FAW Bus Company, and the first batch of 70 buses have been put into production. cities online.

3. Development Status of Lithium Battery Electric Vehicles of Nizhou Wonderland Electric Vehicle Company

On March 23, 2009, the "Wandexi Tent" household electric car produced by Nizhou Wonders Tent Electric Vehicle Company rolled off the production line in the Auto Parts Industrial Park located in the Binhai New Area of ​​Nizhou, and was replaced by This gave birth to another new "first" in the history of Nickel State's industrial development - the first electric vehicle. At the same time, the first batch of 59 other home and golf carts, multi-purpose sightseeing vehicles, etc. were also announced to be offline. The successful rollout of the first batch of domestic lithium battery electric vehicles in the province marks a milestone and important step in the lithium battery electric vehicles industry in Nizhou City. A New Era in Nickel State Automotive Manufacturing. The lithium battery electric vehicles are small and exquisite, with a white body, inlaid red bars, and two seats. It can travel 110km on a single charge and can reach a top speed of 70km per hour. The price of this household lithium battery electric vehicles is about 40,000 yuan. Calculated at 100km, its running cost is 1/10 of that of a fuel vehicle with a displacement below 1.61. After the first batch of lithium-ion battery electric vehicles rolled off the production line, Windsit expects to produce 50,000 lithium battery electric vehicles in the first phase of the project by 2010, and gradually increase the speed of lithium battery electric vehicles from 70km to 85km per hour. 130km and the driving range on a single charge will be increased from 100km to 200km to 500km. In the next five years, it will have the ability to produce 200,000 vehicles per year, and the annual sales will reach 15 billion yuan, thus becoming the leader in the lithium battery electric vehicle market. "The Nickel State Brand". In recent years, Nizhou Wonder Group has continuously improved its independent R&D and innovation capabilities, focusing on enhancing the dual benefits of enterprises and society. It has now become the second largest manufacturer of automotive generators and starters in my country, and the largest domestic manufacturer of automotive airbags. The successful roll-off of the first batch of electric vehicles will add new vitality to the accelerated development of the Lingang industrial economy in the Binhai New Area of ​​Nizhou.

4. Development Status of Lithium Battery Electric Vehicles of Shanghai Public Transport Group

On July 28, 2009, the first batch of 10 pure electric tourist buses of Shanghai Volkswagen Transportation Group were put into operation. This new energy bus adopts a new power system that replaces oil with electricity, and meets the environmental protection requirements of zero emission and no noise. The energy consumption is only 1/5 of that of similar diesel vehicles. According to reports, these lithium battery electric vehicles were developed by Shanghai Leibo Lithium Battery Electric Vehicles Technology Co., Ltd., a joint venture established by State Grid Corporation of China and Shanghai Ruihua Co., Ltd., with a price of 2.5 million yuan and 47 seats. The lithium battery electric vehicles are powered by batteries and capacitors, with a service life of 8 years. It is charged at night when the power consumption is low. The allowable power time is less than 4h, and it can travel 250km continuously. The maximum speed can reach 110km per hour and the acceleration time of 0~30km. for 9.69s. The first batch of 10 new energy buses have been signed to provide supporting services for Fortune 500 companies in Shanghai. Shanghai Volkswagen Transportation Group also signed an agreement to add 10 new energy pure electric buses to provide supporting vehicle services for the Shanghai World Expo.

Daimler and BYD signed a memorandum of understanding on March 2, 2010, announcing the establishment of a comprehensive technical partnership for the development of lithium battery electric vehicles in China. According to the agreement, Daimler and BYD will develop new lithium battery electric vehicles for the specific needs of the Chinese market, and the electric vehicles sold will be listed under the new brand jointly created and owned by both parties. In addition, a technology center will be established in China to develop, design and test lithium battery electric vehicles, which will combine Daimler's know-how in lithium battery electric vehicles design with BYD's experience in battery technology and electric drive systems.

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