{"id":212445,"date":"2016-04-27T22:43:42","date_gmt":"2016-04-27T22:43:42","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/une-batterie-qui-se-recharge-200-000-fois-et-plus\/"},"modified":"2016-04-27T22:43:42","modified_gmt":"2016-04-27T22:43:42","slug":"une-batterie-qui-se-recharge-200-000-fois-et-plus","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/une-batterie-qui-se-recharge-200-000-fois-et-plus\/","title":{"rendered":"Une batterie qui se recharge 200 000 fois et plus"},"content":{"rendered":"<p>Les scientifiques cherchent depuis fort longtemps \u00e0 utiliser des nonofils dans les batteries. Correctement assembl\u00e9s, ces conducteurs dor\u00e9s offrent une grande surface pour le stockage et le transfert des \u00e9lectrons. Cependant, ces filaments qui sont extr\u00eamement fragiles, ne r\u00e9sistent pas bien m\u00e9caniquement aux cycles de charge et de d\u00e9charge. Dans une batterie de type lithium-ion, ils finissent par se dilater et deviennent cassants. Les chercheurs de l&rsquo;UCI ont r\u00e9solu ce probl\u00e8me en rev\u00eatant un nanofil d&rsquo;or dans une coquille de dioxyde de mangan\u00e8se et en enrobant l&rsquo;ensemble dans un \u00e9lectrolyte constitu\u00e9 d&rsquo;une sorte de gel de Plexiglas. La combinaison est fiable et r\u00e9sistante.<\/p>\n<p>Mya Le Thai, doctorante et responsable de l&rsquo;\u00e9tude, a effectuer des test de charge et de d\u00e9charge, plus de 200 000 fois sur une p\u00e9riode de trois mois, sans constater de perte de capacit\u00e9 ni de puissance et surtout sans casse des nanofils. C&rsquo;est en fait par hasard qu&rsquo;elle est tomb\u00e9e sur l&rsquo;association nanofils-gel de plexiglas et a constat\u00e9 que ce dernier permettait de donner de la solidit\u00e9 \u00e0 l&rsquo;ensemble, tout en permettant le stockage d&rsquo;\u00e9nergie.<\/p>\n<p>Pour Mya Le Thai. \u00ab Cette recherche prouve qu&rsquo;une \u00e9lectrode de batterie \u00e0 base de nanofils peut avoir une longue dur\u00e9e de vie et que nous pouvons certainement faire de cette technologie une r\u00e9alit\u00e9 dans le domaine des batteries.\u00a0\u00bb<\/p>\n<p style=\"text-align:center\"><a href=\"https:\/\/youtu.be\/lzFzBpwl8aU\"><img decoding=\"async\" alt=\"\" height=\"353\" data-src=\"http:\/\/cdn.electronics-eetimes.com\/electronics-eetimes.com\/sites\/default\/files\/images\/01-picture-library\/batterie_nanofils_video.jpg\" width=\"523\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" style=\"--smush-placeholder-width: 523px; --smush-placeholder-aspect-ratio: 523\/353;\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A \u00ab\u00a0l&rsquo;University of California Irvine\u00a0\u00bb des chercheurs ont mis au point une batterie \u00e0 base de nanofils conducteurs qui peut \u00eatre recharg\u00e9e des centaines de milliers de fois. Ce serait donc une batterie qu&rsquo;il ne serait plus n\u00e9cessaire de remplacer pendant la dur\u00e9e de vie de l&rsquo;appareil qu&rsquo;elle alimente : une vrai r\u00e9volution pour les smartphones, les tablettes, les ordinateurs portables, les appareils \u00e9lectrom\u00e9nagers sans fil&#8230;.<\/p>\n","protected":false},"author":11,"featured_media":212446,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[],"tags":[909],"domains":[47],"ppma_author":[1143],"class_list":["post-212445","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","tag-batteries-power-supplies-fr","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Une batterie qui se recharge 200 000 fois et plus ...<\/title>\n<meta name=\"description\" content=\"A &quot;l&#039;University of California Irvine&quot; des chercheurs ont mis au point une batterie \u00e0 base de nanofils conducteurs qui peut \u00eatre recharg\u00e9e des centaines 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\/212445\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Une batterie qui se recharge 200 000 fois et plus\" \/>\n<meta property=\"og:description\" content=\"A &quot;l&#039;University of California Irvine&quot; des chercheurs ont mis au point une batterie \u00e0 base de nanofils conducteurs qui peut \u00eatre recharg\u00e9e des centaines de milliers de fois. Ce serait donc une batterie qu&#039;il ne serait plus n\u00e9cessaire de remplacer pendant la dur\u00e9e de vie de l&#039;appareil qu&#039;elle alimente : une vrai r\u00e9volution pour les smartphones, les tablettes, les ordinateurs portables, les appareils \u00e9lectrom\u00e9nagers sans fil....\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/212445\/\" \/>\n<meta property=\"og:site_name\" content=\"EENewsEurope\" \/>\n<meta property=\"article:published_time\" content=\"2016-04-27T22:43:42+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.eenewseurope.com\/wp-content\/uploads\/import\/default\/files\/sites\/default\/files\/images\/batterie_nanofils_0.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"500\" \/>\n\t<meta property=\"og:image:height\" content=\"338\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Daniel Cardon\" \/>\n<meta name=\"twitter:card\" 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