Beijing Olympic Games Information

The first time in the international large-scale lithium battery electric vehicle applications

Moment is the corridor along the cliff, while a desert style, while that south of Yangtze River, while Whitewater is Montenegro, if not the Bird’s Nest, Water Cube, the landmark building, you may need to ask ourselves into the ink in the world. Yes, this is the summer of 2008 Beijing Olympic Village – a unique style urban high-rise side of the small world. 50 electric shuttle bus slowly in the Olympic central area in a lush green belt among the athletes, coaches and media to provide convenient transport services. Corner of the Olympic Village, an area of 5000 square meters of electric vehicle charging stations for electric bus to provide power supply to achieve zero emissions throughout the T4 area.

All the circumstances foreseen in the near few months later in the show in the world. Similarly, Beijing Jiaotong University, “as the Olympic services, transport services for the Olympic Games” also is not just a slogan, this 50 electric buses in the battery management system is developed by the University School of Electrical, technical support unit for the charging station is also the subject group responsible. At present, the charging station construction has entered the sprint stages.

Battery management system reliability

According to project leader Jiang Jiuchun vice president of the introduction, in 2008 Beijing Olympic Games is the first time such a large scale application of international lithium battery electric vehicle, the project has great challenges. Currently the cost of each electric bus is about 1.4 million, of which the cost of the battery reached 4, 500 000. As an important part of the battery system, battery management system (Battery Management System, BMS) to bear the real-time monitoring battery status, optimization of use of battery power and protect the important responsibility of battery safety. Beijing Jiaotong University, Electrical Engineering from the “Ninth Five-Year” period began for the pure electric and hybrid electric vehicle development and design of BMS. Cover the lead-acid battery type, nickel metal hydride and lithium ion batteries. System with its stable performance, strong anti-interference, interface available, easy to install and high reliability has won wide acclaim users, developed battery management system successfully passed the national authority of the electromagnetic compatibility test and successfully installed in the electric car completion of the high-temperature, low temperature and high altitude such as performance tests. 121 Road through the Beijing Electric Bus Demonstration Line and effective long-term service and technical support by Beijing Municipal Science and Technology Commission and the government alike.

In order to better battery management systems team testing and in-depth study, now in Beijing Jiaotong University, Electrical College has completed a battery charging station can achieve all of the features (including the battery and battery management system 10 Xiang, charging Jizu and monitoring network) small-scale simulation of battery charging stations, charging stations simulate the operation of the Olympic process, charging stations for the smooth construction of the Olympic Games to provide technical support and solutions. R & D team acquired a Digatron (maximum output voltage of 500V, maximum output current of 300A) Battery testing equipment for battery on group performance in-depth testing and analysis, to further enhance the battery management system provides functionality and performance effective protection.

Accumulation of the team’s strength

Beijing Jiaotong University in 1997 and began to get involved as early as the battery charging area, the first electric car in the country began to test run the experiment and demonstration area, with many years of research, in 2002, the school successfully become one of major projects, the Olympic Games, “electric vehicles to run demonstration, research and development and industrialization, “the project to participate in unit commitment management system and electric vehicle battery charging technology research. The project is the Ministry of Science, Beijing Municipal Science and Technology Commission in the “Ninth Five-Year”, “15″ “electric car key” based on the common organization and implementation, and aims for the Beijing Olympics, the use of green environment-friendly vehicle to provide technical support to promote our industrialization of electric vehicles.

Professor Jiang Jiuchun said that after 10 years of technology accumulation, in terms of school size and the team management has been a qualitative change, relative to the base ten years ago, Shantou, technical input into the continuously intensified. School designed electric bus battery management system in Beijing, 121 Road Electric Bus Demonstration Line, Beijing Miyun demonstration zone, Dongfeng 2 gas, Chongqing Changan, etc. are widely used, works well. In 2007, the team made in battery applications initial results, the Ministry of Education involved in the project received a first prize of scientific and technological progress, the existing battery management system has been able to meet the pure electric and hybrid vehicles, including the large-scale application.

Olympic charging station technology research since 2003, built 2004, a 20-car charging stations used to run the demonstration, had already become the largest electric vehicle charging station; 2005, 14 lead-acid battery tram, “a district line “(121 Model Line Road and Miyun Electric Bus Demonstration Area) for model run; 05 start, lithium-ion batteries begin loading test, to achieve a dozen of the world’s first lithium battery electric vehicles to run. 2006 Olympic electric vehicles like cars (2) performance tests started, get notice and license, in 2007 the second round of the actual capacity of 5 vehicles to run, the successful completion of testing in summer heat and winter low temperature. System is reliable, anti-interference ability, to meet the needs of the actual operation of electric vehicles.

“Others can be put aside, this matter must be pegged. Pressure to be bigger, should do everything possible to ensure that no any problem.” Is such a word, the research group of students from dawn to dusk, heart meditation is the Olympics The early success.

In the central area of the Olympic Games, Olympic officials, coaches, athletes will not hear the roar of car engines, smell the exhaust, electric buses will be the Beijing Olympics a green carrier, technology carrier. Jiang Jiuchun prospects for the development of management systems with confidence. 50 The use of pure electric passenger car fuel economy of about 1800 liters per day, about 4,230 kg CO2 emissions; pure electric and fuel cell vehicles in motion can achieve zero emissions in energy-efficient hybrid vehicles also can greatly improve the emissions ; In addition, the pure electric vehicles and fuel cell vehicle noise is far lower than conventional internal combustion engine vehicles. In the future, the concept of green traffic will continue to develop.

Via: The international large-scale lithium battery electric vehicle applications

Other Electronics News:

⇒⇒⇒ dell KD476 battery

⇒⇒⇒ dell TD347 battery

⇒⇒⇒ dell inspiron 1501 battery

⇒⇒⇒ canon bg-e3 battery grip

⇒⇒⇒ lenovo thinkpad t400 battery

A new generation of hydrogen fuel cell bus

Reporter from Suzhou City Development and Reform Commission was informed by the Motor Company and Tsinghua University, Suzhou Jinlong joint development, the first to achieve commercial operation of a new generation of hydrogen fuel bus standard, recently off the assembly line in Suzhou.

According to reports, this hydrogen as fuel KLQ6129GQH2 low-floor city bus that looks similar to ordinary bus, but the system is equipped with engine power of 80 kilowatt fuel cell, to launch voice light, the maximum speed of up to 85 km / h sustainable travel 400 kilometers or more. At the same time, buses do not emit any exhaust, no environmental pollution; product type spectrum, lights, chassis assembly parts, it is also optimized, key performance indicators (fuel economy) is much better than the international mainstream models.

It is understood that hydrogen fuel cells and the main difference between an ordinary battery is: batteries, battery is an energy storage device, is the energy stored up and released when necessary; and strictly speaking is a hydrogen fuel cell power generation device, such as power plants, is the chemical energy directly into electrical energy electrochemical power generation devices. Hydrogen fuel cell does not require combustion, energy conversion rate of 60% to 80%, nearly four times the fuel unit, and less pollution, noise, the device can be very flexible, very flexible.

Back in 2001, Suzhou Jinlong car companies to cooperation with Tsinghua University, successfully developed a pure electric car; 2005, the company has with Shanghai Jiaotong University, Shanghai trial of a divine science and technology cooperation "Innovation I" hydrogen fuel cell city buses, trial operation in Shanghai, has been traveling 15,000 kilometers. Last year, Suzhou Jinlong car companies join forces once again, Tsinghua University, co-developed this new generation of fuel cell passenger vehicle prototype.

Other Electronics News:

⇒⇒⇒ dell latitude d520 battery

⇒⇒⇒ dell latitude d600 battery

⇒⇒⇒ dell latitude d610 battery

⇒⇒⇒ dell xps m1330 battery

⇒⇒⇒ sony alpha a350 battery grip

Lithium Battery Energy saving Upsurge

With the constant fluctuations in international oil prices, energy saving environmentally friendly lithium battery in the limelight once again a hot topic. From 6 months, the number of international auto companies and electronics companies are using large-scale lithium battery joint investment. Including Toyota and Matsushita, Nissan and NEC, Volkswagen and Sanyo, Bosch and Samsung, they believe that lithium batteries in the next few years will gradually replace the nickel-metal hydride batteries, lead the direction of development of hybrid vehicles. Li-ion battery in the heat of global investment background, China's automotive enterprises in this research work is in what kind of? Experts on the lithium battery is holding what kind of attitude? Recently, the reporter interviewed specifically on this issue who has studied the domestic lithium battery, several experts.

Beijing Institute of Electric Vehicle Engineering Center Deputy Director Lin Cheng

Study of lithium iron phosphate has been a breakthrough

Lin Cheng told reporters, demanding automotive lithium batteries. It requires that the vehicle used in a variety of conditions, must protect the security, can not occur fire, explosions and other accidents. The first was for battery electric vehicles, in this country has made great breakthroughs have begun to take industrial scale. But 5,6 years ago, with the battery powered vehicles are often some accidents, such cells will gradually be diluted. Now, the domestic lithium battery research progress quickly, especially in the battery safety issues, has made great progress.

Lin Cheng told reporters, lithium batteries include lithium manganese oxide and lithium iron phosphate batteries. At present, the development of the domestic lithium manganese oxide has begun to take shape. Lithium iron phosphate as safer, longer life, will become an important direction for future development of lithium batteries, but also abroad, the focus of research and development of the automobile. At present, lithium iron phosphate studies of good progress, especially in some of the patent on a breakthrough, this time for the Beijing Olympic Games is a passenger car with a self-developed lithium iron phosphate lithium battery.

"Of course with the study abroad compared to lithium batteries, the domestic lithium battery research still lags far behind, but the domestic lithium battery emphasis on increasing, the future will be the R & D focus." Lin Cheng told reporters.

Henan Huanyu Group lithium battery industry technology Deng Lun-ho, deputy chief engineer

Large-scale lithium batteries for electric cars need some time

Henan Huanyu Group is a component from the battery to the battery cell manufacturing plastics and related hardware, equipment manufacturing, electronics manufacturing, a complete industrial chain of the Enterprise Group, has undertaken the project of Science and Technology Li-ion battery research and development.

"At present the domestic lithium battery research and abroad, the gap is mainly reflected in the battery control system and power management systems." Deng Lun-ho told reporters that now the domestic lithium battery research for development in their respective state. Currently, some companies have been able to provide the corresponding lithium battery electric vehicle accessory products, supporting the general lithium batteries can run 200 to 500 km.

Deng Lun-ho told reporters that now the price is too high the domestic lithium battery, power management system problem has not yet been well resolved. Charging electric vehicles also face the problem. Currently, the general line at home can not charge lithium batteries for electric vehicles must be equipped with a small dedicated charger, and charging time is very long and very troublesome. Abroad, in order to solve this problem, generally regarded charging stations and gas stations together. China is now charging stations have not established a large scale.

Deng Lun-ho believes that the current consumer acceptance of electric vehicles equipped with lithium batteries it still more difficult: "the price of an ordinary electric car is about twice the same configuration or even higher gasoline locomotives, domestic consumers have not enough economic prepared to accept the power and electric vehicles. "

China Electric Power Research Institute engineer Chuang Feng

Optimistic about the prospects for the development of lithium iron phosphate

Chong Tong, told this reporter, the electric vehicle battery research and development work has gone from lead-acid batteries, nickel-metal hydride batteries to the development of lithium batteries, each battery advantages and disadvantages.

The earliest to appear in lead-acid batteries, used in the longest time, belonging to the battery series. The best safety performance lead-acid batteries, rare explosion, fire and other phenomena, energy storage effect is not ideal. Later, people developed a nickel-metal hydride batteries, store energy and power than the effect of the ideal lead-acid batteries, but due to nickel-metal hydride battery in the charging of hydrogen generated in the process prone to explosion, so the nickel-metal hydride batteries in a business may or may not state.

To the year 2000, people developed a lithium battery. Lithium batteries are lead-acid storage battery of power 2 to 3 times, but because it contains lithium-ion active in the metal layer surface, prone to spontaneous combustion in the air, explosions, etc., higher risk. So now the major countries is to control the development of lithium batteries is safety and stability.

"Charging a lithium battery would be able to cycle around 1000, in which the stored energy of lithium iron phosphate is better than lithium cobalt oxide and lithium manganese oxide effects worse, but it's the best safety performance, than lead-acid battery energy storage much higher, so now the most promising lithium iron phosphate. "Chuang Tong said.

Society of Automotive Engineers of China, director Chen Quanshi branch of electric car

Three problems of domestic lithium battery research

Quan-Shi Chen said in an interview: "Now the state attaches great importance to the study of lithium batteries, '863 'project, the state invested a total of 66 million yuan, all development work for the lithium battery. We and Japan, the United States such as walking in the lithium battery research and development in the forefront of the developed countries, China's lithium battery manufacturing precision, equipment, standards, etc. there is a certain gap between R & D details. "

Quan-Shi Chen told reporters that at present there are three issues of domestic lithium battery research. The first is the consistency of manufacturing. Since the lithium battery manufacturing technology and equipment there is a gap, the domestic lithium battery production technology mixed, manufacturing standards has not yet reached agreement. Lithium batteries used in electric vehicles are connected in series or in parallel, if the consistency issues are not well, then the large-scale production of lithium batteries used in electric vehicles will not be able.

Followed by the intellectual property rights. Currently in the study of lithium iron phosphate has made a breakthrough, but the U.S. patent in this area, so although some of our links to independent research and development, but in intellectual property issues, but also do not know how to respond.

The third issue is the selection of raw materials. Now the production of raw materials used in lithium batteries can not all imported, mainly from China, but domestic raw materials, through international certification, to produce lithium-ion batteries in order to be internationally recognized, so the link in the certification of raw materials and also some problems.

Other Electronics News:

⇒⇒⇒ lenovo batteries

⇒⇒⇒ laptop batteries

⇒⇒⇒ dell laptop batteries

⇒⇒⇒ dell inspiron 9400 battery

⇒⇒⇒ dell inspiron e1705 battery

⇒⇒⇒ dell xps m1710 battery