{"id":38034,"date":"2021-01-21T18:43:18","date_gmt":"2021-01-21T18:43:18","guid":{"rendered":"https:\/\/\/autonomie-de-400-km-temps-de-charge-10-minutes-ca-chauffe-dans-la-batterie\/"},"modified":"2021-01-21T18:43:18","modified_gmt":"2021-01-21T18:43:18","slug":"autonomie-de-400-km-temps-de-charge-10-minutes-ca-chauffe-dans-la-batterie","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/autonomie-de-400-km-temps-de-charge-10-minutes-ca-chauffe-dans-la-batterie\/","title":{"rendered":"Autonomie de 400 km, temps de charge 10 minutes: \u00e7a chauffe dans la batterie!"},"content":{"rendered":"<p><strong>Chao-Yang Wang<\/strong><sup>1<\/sup> &nbsp;et <strong>William E. Diefenderfer<\/strong><sup>2<\/sup> &nbsp;annoncent \u00ab\u00a0Nous avons d\u00e9velopp\u00e9 une batterie assez intelligente pour les v\u00e9hicules \u00e9lectriques grand public \u00e0 co\u00fbt \u00e9gale compar\u00e9 aux v\u00e9hicules \u00e0 moteur \u00e0 combustion. Il n&rsquo;y a plus d&rsquo;angoisse d&rsquo;autonomie et cette batterie est abordable, avec une dur\u00e9e de vie de de 2 millions de kilom\u00e8tre\u00a0\u00bb<\/p>\n<p>Leur publication dans \u00ab\u00a0Nature Energy\u00a0\u00bb pr\u00e9cise que la cl\u00e9 d&rsquo;une longue dur\u00e9e de vie et d&rsquo;une recharge rapide repose sur la capacit\u00e9 de la batterie \u00e0 chauffer rapidement jusqu&rsquo;\u00e0 60\u00b0C pour la charger et la d\u00e9charger, puis de la &nbsp;refroidir lorsque la batterie ne fonctionne pas. \u00ab\u00a0La charge tr\u00e8s rapide nous permet de r\u00e9duire la taille de la batterie sans provoquer de probl\u00e8me d&rsquo;autonomie\u00a0\u00bb, a d\u00e9clar\u00e9 Wang.<\/p>\n<p>La batterie utilise une approche d&rsquo;auto-\u00e9chauffement d\u00e9j\u00e0 d\u00e9velopp\u00e9e dans le labo de Wang. La batterie auto-chauffante utilise une fine feuille de nickel avec une extr\u00e9mit\u00e9 connect\u00e9e \u00e0 la borne n\u00e9gative et l&rsquo;autre sur un troisi\u00e8me borne externe \u00e0 la cellule.En chauffant, &nbsp;la feuille de nickel r\u00e9chauffe l&rsquo;int\u00e9rieur de la batterie. Une fois que la temp\u00e9rature interne de la batterie est de 60\u00b0C, l&rsquo;interrupteur coupe le circuit de chauffage et la batterie est pr\u00eate pour une charge rapide.<\/p>\n<p>L&rsquo;\u00e9quipe de Wang a mod\u00e9lis\u00e9 cette batterie en utilisant les technologies existantes et des approches innovantes. Ils sugg\u00e8rent qu&rsquo;en utilisant cette m\u00e9thode d&rsquo;auto-\u00e9chauffement, ils peuvent se contenter de mat\u00e9riaux bon march\u00e9 pour la cathode et l&rsquo;anode de la batterie et un \u00e9lectrolyte fiabler. La cathode est du phosphate de fer lithium thermiquement stable, qui ne contient aucun des mat\u00e9riaux co\u00fbteux et critiques comme le cobalt. L&rsquo;anode est en graphite \u00e0 tr\u00e8s grosses particules, un mat\u00e9riau s\u00fbr, l\u00e9ger et peu co\u00fbteux.<\/p>\n<hr \/>\n<p>Du fait de l&rsquo;auto-\u00e9chauffement, les chercheurs consid\u00e8rent&nbsp; n&rsquo;avaient pas d&rsquo;inqui\u00e9tude concernant un d\u00e9p\u00f4t in\u00e9gal de lithium sur l&rsquo;anode, ce qui peut provoquer des pics de lithium dangereux. \u00ab\u00a0Cette batterie r\u00e9duit le poids, le volume et le co\u00fbt. Elle profitera \u00e0 tout le monde\u00a0\u00bb, a d\u00e9clar\u00e9 Wang. Ces petites batteries emmagasinent &nbsp;une grande quantit\u00e9 d&rsquo;\u00e9nergie en chauffant &#8211; 40 kilowattheures et 300 kilowatts de puissance. Un v\u00e9hicule \u00e9lectrique avec cette batterie pourrait passer de z\u00e9ro \u00e0 100 kmh en 4 secondes.<\/p>\n<p>L&rsquo;Office of Energy Efficiency and Renewable Energy du d\u00e9partement am\u00e9ricain de l&rsquo;\u00c9nergie et le William E Diefenderfer Endowment ont soutenu cette recherche.<\/p>\n<p><a href=\"https:\/\/www.psu.edu\/\">Universit\u00e9 Penn&nbsp;State<\/a><\/p>\n<p>___________________________________________________________<\/p>\n<p><strong>Chao-Yang Wang<\/strong><sup>1<\/sup> &nbsp;et <strong>William E. Diefenderfer<\/strong><sup>2<\/sup> &nbsp;: Chair of mechanical engineering, professor of chemical engineering and professor of materials science and engineering, and director of the Electrochemical Engine Center at Penn State<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Une \u00e9quipe de chercheurs de l&rsquo;universit\u00e9 de Pennsylvanie, \u00e9tudient les batteries au lithium fer phosphate dont l&rsquo;autonomie est de 400 km avec lun temps de charge de10 minutes. La fin de l&rsquo;anxi\u00e9t\u00e9 de la panne s\u00e8che \u00e9lectrique est \u00e0 port\u00e9e de batterie.<\/p>\n","protected":false},"author":11,"featured_media":161774,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[],"tags":[],"domains":[47],"ppma_author":[1143],"class_list":["post-38034","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Autonomie de 400 km, temps de charge 10 minutes: \u00e7a chauffe da...<\/title>\n<meta name=\"description\" content=\"Une \u00e9quipe de chercheurs de l&#039;universit\u00e9 de Pennsylvanie, \u00e9tudient les batteries au lithium fer phosphate dont l&#039;autonomie est de 400 km avec lun temps de...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/38034\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Autonomie de 400 km, temps de charge 10 minutes: \u00e7a chauffe dans la batterie!\" \/>\n<meta property=\"og:description\" content=\"Une \u00e9quipe de chercheurs de l&#039;universit\u00e9 de Pennsylvanie, \u00e9tudient les batteries au lithium fer phosphate dont l&#039;autonomie est de 400 km avec lun temps de charge de10 minutes. 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