{"title":"电动汽车如何摆脱稀土陷阱?使用奇特材料和巧妙配置的实验电机前景广阔","authors":"Vandana Rallabandi;Burak Ozpineci;Praveen Kumar","doi":"10.1109/MSPEC.2024.10622061","DOIUrl":null,"url":null,"abstract":"THE DILEMMA IS EASY TO DESCRIBE. Global efforts to combat climate change hinge on pivoting sharply away from fossil fuels. To do that will require electrifying transportation, primarily by shifting from vehicles with combustion engines to ones with electric drive trains. Such a massive shift will inevitably mean far greater use of electric traction motors, nearly all of which rely on magnets that contain rare earth elements, which cause substantial environmental degradation when their ores are extracted and then processed into industrially useful forms. And for automakers outside of China, there is an additional deterrent: Roughly 90 percent of processed rare earth elements now come from China, so for these companies, increasing dependence on rare earths means growing vulnerability in critical supply chains.","PeriodicalId":13249,"journal":{"name":"IEEE Spectrum","volume":null,"pages":null},"PeriodicalIF":2.6000,"publicationDate":"2024-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"How EVs Can Escape the Rare Earth Trap: Promising Experimental Motors are Using Exotic Materials and Ingenious Configurations\",\"authors\":\"Vandana Rallabandi;Burak Ozpineci;Praveen Kumar\",\"doi\":\"10.1109/MSPEC.2024.10622061\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"THE DILEMMA IS EASY TO DESCRIBE. Global efforts to combat climate change hinge on pivoting sharply away from fossil fuels. To do that will require electrifying transportation, primarily by shifting from vehicles with combustion engines to ones with electric drive trains. Such a massive shift will inevitably mean far greater use of electric traction motors, nearly all of which rely on magnets that contain rare earth elements, which cause substantial environmental degradation when their ores are extracted and then processed into industrially useful forms. And for automakers outside of China, there is an additional deterrent: Roughly 90 percent of processed rare earth elements now come from China, so for these companies, increasing dependence on rare earths means growing vulnerability in critical supply chains.\",\"PeriodicalId\":13249,\"journal\":{\"name\":\"IEEE Spectrum\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.6000,\"publicationDate\":\"2024-08-02\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"IEEE Spectrum\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://ieeexplore.ieee.org/document/10622061/\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ENGINEERING, ELECTRICAL & ELECTRONIC\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Spectrum","FirstCategoryId":"5","ListUrlMain":"https://ieeexplore.ieee.org/document/10622061/","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
How EVs Can Escape the Rare Earth Trap: Promising Experimental Motors are Using Exotic Materials and Ingenious Configurations
THE DILEMMA IS EASY TO DESCRIBE. Global efforts to combat climate change hinge on pivoting sharply away from fossil fuels. To do that will require electrifying transportation, primarily by shifting from vehicles with combustion engines to ones with electric drive trains. Such a massive shift will inevitably mean far greater use of electric traction motors, nearly all of which rely on magnets that contain rare earth elements, which cause substantial environmental degradation when their ores are extracted and then processed into industrially useful forms. And for automakers outside of China, there is an additional deterrent: Roughly 90 percent of processed rare earth elements now come from China, so for these companies, increasing dependence on rare earths means growing vulnerability in critical supply chains.
期刊介绍:
IEEE Spectrum Magazine, the flagship publication of the IEEE, explores the development, applications and implications of new technologies. It anticipates trends in engineering, science, and technology, and provides a forum for understanding, discussion and leadership in these areas.
IEEE Spectrum is the world''s leading engineering and scientific magazine. Read by over 300,000 engineers worldwide, Spectrum provides international coverage of all technical issues and advances in computers, communications, and electronics. Written in clear, concise language for the non-specialist, Spectrum''s high editorial standards and worldwide resources ensure technical accuracy and state-of-the-art relevance.