{"id":127831,"date":"2021-09-18T21:24:11","date_gmt":"2021-09-19T04:24:11","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2021\/09\/mahles-cheap-highly-efficient-new-ev-motor-uses-no-magnets"},"modified":"2021-09-18T21:24:11","modified_gmt":"2021-09-19T04:24:11","slug":"mahles-cheap-highly-efficient-new-ev-motor-uses-no-magnets","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2021\/09\/mahles-cheap-highly-efficient-new-ev-motor-uses-no-magnets","title":{"rendered":"Mahle\u2019s cheap, highly efficient new EV motor uses no magnets"},"content":{"rendered":"

<\/a><\/p>\n

Magnets, typically using rare earth metals like neodymium, are found at the heart of most electric vehicle motors. It\u2019s nice to have a permanent source of powerful rare earth magnetism in your rotor, because using powered coils instead means you have to somehow transfer electricity from the battery through to the coils in a spinning rotor. That means you\u2019ll need a sliding point of contact, and sliding points of contact develop wear and tear over time.<\/p>\n

Permanent magnets, though, come with their own baggage. Ninety seven percent of the world\u2019s rare earth metal supply comes out of China, and state control over such a crucial resource across a number of high-tech industries has been a serious issue in the past. Official accounts differ about why China decided to restrict rare earth exports<\/a> back at the start of the decade, as official accounts tend to do, but the result either way was a 750-percent leap in neodymium prices and a 2,000-percent leap in dysprosium prices<\/a>.<\/p>\n

Could these metals be produced elsewhere? Yes. They\u2019re not as rare as the name might suggest. But wherever they\u2019re mined, the only way to economically turn them into magnets is to send them to China for processing \u2013 nowhere else in the world is set up for the task, and nobody can compete against China\u2019s minimal labor costs and environmental regulations<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"

Magnets, typically using rare earth metals like neodymium, are found at the heart of most electric vehicle motors. It\u2019s nice to have a permanent source of powerful rare earth magnetism in your rotor, because using powered coils instead means you have to somehow transfer electricity from the battery through to the coils in a spinning [\u2026]<\/p>\n","protected":false},"author":513,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17,1491],"tags":[],"class_list":["post-127831","post","type-post","status-publish","format-standard","hentry","category-sustainability","category-transportation"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/127831","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/513"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=127831"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/127831\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=127831"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=127831"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=127831"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}