602535 battery.Improvements in lithium battery electrode technology

　　According to foreign media reports, recently, researchers from Rensselaer Polytechnic Institute, the top technical university in the United States, announced that they have successfully accelerated the charging speed of lithium-ion batteries by using vanadium disulfide instead of cobalt oxide commonly used in electrodes. "This material is lighter and has good conductivity, so it can meet higher energy density requirements and ensure faster charging speeds." Nikhil Koratkar, the first author of the study, said, "Improved electrodes can enhance the performance of lithium-ion batteries." In order to promote the development of the new energy vehicle industry, global new energy vehicle companies have invested heavily in the lithium battery industry, and it is difficult to break the dominant position of lithium-ion batteries. Various institutions are committed to lithium battery research, hoping to maximize the performance of lithium-ion batteries before alternatives emerge. At the same time, in order to attract more consumers to abandon fuel vehicles and switch to electric vehicles, automakers and energy companies have been launching ultra-high-speed charging equipment around the world in recent years: In March, Tesla’s world’s first V3 super charging pile was put into use in the United States. , with a maximum power of 250 kilowatts, can increase the cruising range by 30 kilometers in 1 minute on the most efficient Tesla model; the fast charging pile produced by the Australian company Tritium can meet the demand of charging in 10 minutes and driving more than 346 kilometers. Industry insiders pointed out that while discussing charging speed, the endurance of the battery itself is definitely the most unavoidable factor. No matter how powerful the peripheral charging equipment is and how strong its charging capacity is, if the battery itself has shortcomings in the acceptable charging capacity, the charging speed will inevitably be affected. Erik Terjesen, senior director of Ionic Materials, said: "Given the huge initial investment, the new energy vehicle industry is unlikely to abandon lithium-ion batteries and choose to 'start from scratch'. We should increase the endurance of lithium-ion batteries, improve battery performance, and try component improvements, rather than Rushing to find replacements."

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