Automotive secondary battery related technologies have become popular. The background is that countries around the world are strengthening carbon dioxide emissions regulations. For example, the ZEV (Zero Emission Vehicles) Act of California, the European Carbon Dioxide Act, and China's environmental regulations will be more stringent in the future. This article refers to the address: http:// As an effective measure to deal with emission regulations, large automakers have high hopes for electric vehicles such as hybrid electric vehicles (HEVs) and pure electric vehicles (EVs), and companies are desperately promoting development. Large automakers who have not been active before can not avoid this problem in the future. Not only that, but if you don't deal with this series of environmental bills in time, it may even be related to the survival of the company. For example, the target vehicles of the US ZEV Act were General Motors (GM), Ford, Chrysler (now Fiat Chrysler), and Toyota, Honda and Nissan in Japan. But starting in 2018, Volkswagen, BMW, Daimler, Mazda, Hyundai Group will also be suitable. These later-added target companies will naturally accelerate the development of electric vehicles in the future. a wide variety of electric vehicles Electric vehicles can be divided into several categories depending on the technology employed. The familiar ones should be HEV (Plug-in Hybrid) and EV (Pure Electric). HEV has been in the popularization period since Toyota introduced the Prius in 1997 for more than 15 years. Toyota is definitely the leader in the field, and Honda is also very competitive. Among American manufacturers, Ford is vigorously promoting the development of HEV, but it is still far from Japanese manufacturers. The market penetration rate of HEV is also very high in electric vehicles, and European manufacturers will actively develop HEVs in the future. Looking back at the market trend of EV, EV's market evaluation was lower before 2012, and Nissan's LEAF (Lesson) and Mitsubishi's i-MiEV have been struggling. The reason is that it is impossible to solve the problem of short cruising distance, long charging time, and high price. This situation has gradually changed since 2013. Especially in the United States, the economic benefits of Nissan LEAF have been well received, and market awareness has gradually increased. Since the end of 2013, LEAF has been selling at a rate of 1,000 vehicles per month in the United States. Support for power companies such as Georgia Power, based in Atlanta, USA, to improve charging infrastructure seems to have played a role. The better performance is Tesla Motors, a venture company in Silicon Valley, USA. The company's EVModelS officially discloses a battery life that is more than twice that of Japanese manufacturers, 483km. The car uses the body design of the sports car, which can provide consumers with the value of sitting again and wanting to sit again. The car has achieved rapid growth, with current sales of 200 vehicles per week and sales of approximately 120 million yuan. Readers may not be familiar with it. In the United States, the popularity of plug-in hybrid vehicles (PHEVs) that can be charged at home is that the cumulative sales volume of GM's Volt.Volt has reached 66,000, and the total distance traveled by all owners has broken through. 600 million miles (about 960 million kilometers). The car sold about 23,000 units in 2013 and is expected to grow further in 2014. In addition, in terms of fuel cell vehicles (FCV), Japanese manufacturers plan to launch the market in 2015. Honda has been studying fuel cells as the core of the technology since 1986, and finally saw the hope of mass production after 29 years. EV popularization conditions are not in infrastructure construction Electric vehicle technology has both advantages and disadvantages. The emergence of electric vehicles is both an opportunity and a risk for related industries. The intentions of countries that implement relevant regulations and corporate strategies will receive attention. Let's analyze the zero-emission vehicles EV and FCV without fossil fuels such as gasoline. The EV is one of the candidates for the ultimate eco-car, but its status is not stable. This is because the performance of the EV (driving distance and charging time) is very low compared to the gasoline car. A condition for solving a series of problems and making EV fully popular is to realize a high-performance battery that surpasses existing lithium-ion batteries. At present, countries, research institutes and enterprises are promoting relevant research and development, and they are expected to be practical. Among them, there is a new type of battery lithium air battery called a post lithium ion battery. Lithium-air batteries use a chemical reaction between lithium metal and oxygen in the air, and the theoretical value of the energy obtained exceeds that of current lithium-ion batteries. However, the goal of lithium-air batteries is to be practical in 2030, and it is still far away. It seems that some people have said that they can be put into practical use before 2020, but for the subject still in the basic research stage, it seems that there is no practical significance to talk about practical time. We often see data on the positive and negative materials developed by universities and materials manufacturers. We have found that the technology that can extend the EV range to 500km can only be said to be a mystery. Because the electrode can't determine the cruising distance at all, only the battery system that can be installed on the EV can be discussed. On the other hand, the expression of exaggeration should be used with caution. Japanese universities and companies often publish such news. Every time such a message is encountered, both the investment company and the investigating agency will seek advice from the author. The author's answer is generally to observe it calmly and objectively. There is no principle and logic support, too little information, and no conclusion can be drawn. Of course, Japan has overwhelmingly strong competitiveness in cutting-edge research and technology development in the field of materials, so new breakthroughs are very likely to occur in Japan. In fact, in the cutting-edge research of secondary batteries, the influence of manufacturers in other countries is not high. For example, WPM (World Premium Materials), a Korean national project headed by Samsung SDI, has been promoting the development of related materials in the name of the country since 2008. However, in the field of materials, only basic research based on solid research can achieve results, and the basic research strength is less likely than the weak Japan to develop shocking new materials.
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Features
Applications include
Dimension range
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Diameter
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Wall thickness
1-10mm