Chinese scholars discovered a new type of graphite dual-ion battery technology

The reporter learned from the Chinese Academy of Sciences that the latest achievement of Tang Yongbing, a researcher from the Shenzhen Institute of Advanced Technology of the Chinese Academy of Sciences and his research team, is the new high-energy-density aluminum-graphite dual-ion battery technology. Last week, it was invited by the German science network science aktuell and won wide acclaim. If the technology is industrialized, it will have a major impact on the existing lithium battery industry structure. New battery technology, low cost and high efficiency. This is a surprising discovery, a new battery technology that has never been reported, the editor said. When he told Tang that the research had been accepted by the Wall Street Journal, he forwarded the comments of the anonymous reviewer to Tang. The important energy conversion and storage equipment in the fields of portable electronic equipment, electric vehicles, and renewable energy systems is lithium batteries. However, the energy density of commercial lithium batteries, low processing costs and high cost, and traditional lithium battery electrode materials contain toxic metals, batteries Waste can cause serious environmental problems. In particular, the demand for new energy vehicles in the power lithium-ion battery industry is a hot spot, but the power lithium-ion battery technology is still the front ditch hindering the development of new energy vehicles. Whether it is an electric vehicle driven by a lithium battery or an electric vehicle driven by a fuel-powered battery, both are facing challenges in terms of cost and mileage. The high-energy-density aluminum-graphite dual-ion battery discovered by Tang Yongbing's team is a new type of energy storage battery with high efficiency and low cost. This new type of battery adjusts the positive and negative electrodes of traditional lithium batteries, uses cheap and easily available graphite instead of lithium cobalt oxide, lithium manganate, ternary lithium or lithium iron phosphate, and is widely used in lithium batteries. Aluminum foil can be used not only as a battery cathode material, but also as a cathode collector liquid. The electrolyte is composed of traditional lithium salt and carbonate organic solvents. The working principle of the battery is different from that of the traditional lithium battery: when charging, the negative ion intercalation reaction occurs in the graphite on the positive electrode, and the aluminum-lithium alloy reaction occurs on the aluminum negative electrode. This new reaction mechanism not only significantly increases the working voltage of the battery (3.8-4.6v), but also significantly reduces the quality, volume and manufacturing cost of the battery, thereby comprehensively increasing the energy density of the entire battery (~220wh/kg). If this technology is commercialized, future mobile phones will be only half as thin as they are now, and our smart phones should not be charged in one day. This solves the key problems of high battery costs and short battery life for electric vehicles. (Ministry of Industry and Information Technology Department of Electronic Science and Technology Progress Department of Electronic Science and Technology Progress Department of Electronic Science and Technology Progress Department of Electronic Science and Technology Progress Department of Electronic Science and Technology Progress Department of Electronic Science and Technology Progress Department of Electronic Science and Technology Progress Department of Electronic Science and Technology Progress Department of Electronic Science and Technology Progress (Ministry of Electronic Science and Technology Progress, Ministry of Electronic Science and Technology Progress, Ministry of Electronic Science and Technology Progress) However, battery technology still needs to be optimized, if it is necessary to further improve the cycle stability of the battery. Will it change the existing lithium battery industry structure? In recent years, with the support of policies, new energy vehicles have swept the world, and the upstream industry has also ushered in a burst of good news. The world's leading battery factory has set up factories in my country. Although the continued prosperity of the new energy vehicle market has boosted the battery industry, pure power batteries and hydrogen fuel-powered batteries still face challenges in terms of technical costs and cruising range. The global demand for lithium is rising at an annual rate of 7.7%, and the market size will reach US$120 billion by 2019 (according to data from fredonia). According to the statistics of the motor vehicle factory certificate, in December 2015, my country's new energy vehicle output was 99,800, a year-on-year increase of three times. Miao Wei, Minister of the Ministry of Industry and Information Technology, proposed at this year's two sessions that new energy vehicles have entered the growth period from the cultivation period in 2009. In 2015, my country's automobile production and sales exceeded 300,000 vehicles, showing a trend of rapid increase over the previous year. Miao Wei believes that there are two bottlenecks in the development of new energy vehicles. First of all, on the product side, solve the performance, reliability, cruising range, life and other issues of products represented by power lithium-ion batteries. Secondly, the construction of charging facilities represented by the application terminal needs to be improved. Miao said that the Ministry of Industry and Information Technology has made some arrangements in these two areas, and local governments have also made active efforts to ensure the further development of new energy vehicles. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: Why is it difficult for lithium batteries to shake the status of lead-acid batteries?