At 12 o'clock on March 15, 2018, the 210th Academic Salon of the Department of Automotive Engineering at Tsinghua University was held in Conference Room 301, 3rd Floor, Tsinghua University's Steam Research Institute. This year's salon was specially invited as a professor at Tsinghua University and Professor Fei Weiyang from the Chinese Academy of Sciences brought it' Interdisciplinary Crossing, Promoting Scientific and Technological Innovation' Keynote speech. Academician Wang Yuming, Academic Director of the State Key Laboratory of Automotive Safety and Energy at Tsinghua University, was invited to host the salon.
At the beginning of Sharon, Academician Wang Yuming first introduced the curriculum vitae of the academician Fei as the moderator. 'The academician Fei is mainly engaged in the research of chemical separation science and technology. The urgent needs in the areas of energy, resources and environmental protection, and mass transfer separation equipment such as extraction, absorption, etc. The mathematical model, design amplification and performance enhancement were systematically studied. Committed to the combination of basic research and engineering applications. In recent years, the research on the enhancement of carbon dioxide capture process has been carried out. He won the national science and technology invention award and the national scientific and technological progress. Awards and national inventions create invention gold awards, provincial and ministerial committees have 15 science and technology awards and more than 10 invention patents.
In the following report sharing stage, Academician Fei made a systematic exposition of engineering science to make life better, the new challenges of intersecting disciplines, and new opportunities for chemical engineering.
Fei Weiyang
Among them, when talking about the status of the real economy in the national economy, he said: The general chemical industry has a share of the national economic output value of about 1/6; the auto industry is developing at a high speed and has become a pillar industry that promotes the growth of China's GDP. One of them. However, China is now in the period of development of basic industries such as chemicals and automobiles. Although it is a 'great country' for related industries, it still has a gap with 'powerful countries'. He believes that the development of the real economy is the key to achieving two hundred-year goals in China. Engineering science will play an important role.
Specific to the chemical industry. In modern society, it can be said that while people enjoy the material civilization brought about by chemical industry, they often blame the problems brought by the chemical industry. For example, chemical industry often has high energy consumption and high material consumption, pollution and safety issues, etc. In the face of severe international competition, the transformation and upgrading of the chemical industry is imminent. Academician Fei analyzed that the key scientific and technological problems that need to be solved include: molecular simulation of advanced separation agents, structural control and performance enhancement, and extra large separation equipment. Intensified research and innovation, research on new separation technologies, and the conversion and utilization of carbon dioxide, etc. The conversion and use of carbon dioxide is certainly not unfamiliar to the automotive industry. Although electric vehicles are now being developed, they are now supplying electricity. Most of them came from coal-fired power. Academician Fei pointed out that a 50-million kilowatt power plant emits a lot of Sox, Nox, dust and 3 million tons of carbon dioxide. Therefore, how to effectively reduce the emission of carbon dioxide is a concern for the chemical and automotive industries. The problem.
In addition, Fei Jiashi analyzed the challenges faced by the development of electric vehicles. He expressed doubts about how long the subsidy policy of electric vehicles can last. In addition, he believes that the research and innovation of lithium batteries need to be strengthened, and the recycling technology of lithium batteries needs to be broken. In this way, the soaring price of lithium caused by the restriction of lithium resources and production technology in China, and the development of lithium extraction technology and the slow development of the salt lake brine all constrain the development of electric vehicles in China.
Among them, he is particularly concerned about the development of retired lithium battery recycling technology. According to the data, with the vigorous development of new energy vehicles, it is estimated that by 2020, global lithium battery shipments will reach 265.7GWh. With the large number of lithium battery applications, The result is a large number of decommissioned lithium-ion batteries. It is predicted that by 2020, the amount of lithium-ion batteries decommissioned in China will exceed 500,000 tons. Disposal of retired lithium batteries will not only cause environmental pollution, but also lead to The waste of vehicle manufacturing resources. This is also a concern for the automotive industry and the chemical industry. From the chemical point of view, Fei Jiashi analyzed the status quo involving pyrometallurgical and hydrometallurgical methods involving decommissioned lithium battery recycling technology, and lithium batteries. Recycling technology development trends include safe and efficient dismantling, avoiding secondary pollution, and recovery of valuable metals as a whole.
In the final question session, especially for the cross-disciplinary issues, Academician Fei believes that it is not only limited to the above-mentioned carbon dioxide emissions, lithium battery extraction, separation, utilization, etc., and other materials such as fuel cell research and industrial plastics. The direction, the automotive industry and the chemical industry all still have a lot of ties to work together to promote technological innovation. He called on the automotive industry to put forward requirements and the chemical industry to solve the problem, so that it can promote the commercialization of certain technologies more quickly. Application.
At the meeting, the salon attracted a total of 210 participants from 12 institutions including the Chinese Academy of Engineering, China Automobile Industry Association, Beijing Science and Technology Newspaper and Tsinghua University.