{"id":3458,"date":"2007-11-28T09:22:04","date_gmt":"2007-11-28T09:22:04","guid":{"rendered":"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/2007\/11\/28\/un-nouveau-spar\/"},"modified":"2012-07-12T10:11:52","modified_gmt":"2012-07-12T10:11:52","slug":"un-nouveau-spar","status":"publish","type":"post","link":"https:\/\/blogs.thesocialmedia.com\/leblogenergie\/2007\/11\/28\/un-nouveau-spar\/","title":{"rendered":"Un nouveau s\u00e9parateur pour batteries Lithium-ION"},"content":{"rendered":"<p><a href=\"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/files\/2012\/07\/tonen_logo1.gif\"><\/a><a href=\"http:\/\/clabedan.typepad.com\/photos\/uncategorized\/2007\/11\/28\/tonen_logo1_2.gif\"><img loading=\"lazy\" decoding=\"async\" height=\"48\" alt=\"Tonen_logo1_2\" src=\"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/files\/2012\/07\/tonen_logo1_2.gif\" width=\"250\"  \/><\/a>&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; <span style=\"font-size: 1.4em\">T<\/span>ONEN Chemical Corporation, une filiale d&rsquo;Exxon-Mobil au Japon, est le premier fournisseur mondial de s\u00e9parateurs pour batteries de type Lithium-ION qui \u00e9quipent la plupart des \u00e9quipements portables actuels(ordinateurs, portables,t\u00e9l\u00e9phones, etc.). Le produit standard, obtenu par co-extrusion en voie humide, est un film de poly\u00e9thyl\u00e8ne microporeux. Ce produit, en cas d&rsquo;accroissement involontaire de la temp\u00e9rature perd sa microporosit\u00e9 (shutdown) vers 130\u00b0C ce qui fait cro\u00eetre la r\u00e9sistance interne de la batterie, par r\u00e9duction de la conductivit\u00e9 ionique. Mais \u00e0 <u>150\u00b0C&nbsp; le poly\u00e9thyl\u00e8ne fond<\/u> avec formation d&rsquo;un court circuit interne dont les cons\u00e9quences doivent alors \u00eatre ma\u00eetris\u00e9es par divers dispositifs m\u00e9caniques ou thermiques de s\u00e9curit\u00e9. La Soci\u00e9t\u00e9 TONEN vient de commercialiser un nouveau s\u00e9parateur microporeux dont le shutdown est toujours vers 130\u00b0C mais avec une temp\u00e9rature de fusion atteignant <u>190\u00b0C environ<\/u>.<\/p>\n<p>&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; Cette propri\u00e9t\u00e9 fondamentale permet au syst\u00e8me de gestion de la batterie d&rsquo;avoir plus de latitude et donc plus de fiabilit\u00e9, pour activer les dispositifs de s\u00e9curit\u00e9 en cas de surchauffe d&rsquo;un accumulateur. Ce nouveau produit est tout sp\u00e9cifiquement destin\u00e9 aux grosses batteries pour v\u00e9hicules hybrides ou v\u00e9hicules 100% \u00e9lectriques. Il devrait aussi voir son application \u00e9tendue aux batteries all\u00e9g\u00e9es pour les avions civils de nouvelle g\u00e9n\u00e9ration. <\/p>\n<p>&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; Ces produits sophistiqu\u00e9s sont cependant des composants qui par leurs prix \u00e9lev\u00e9s, constituent une part importante du co\u00fbt des batteries au Lithium. Les co\u00fbts tr\u00e8s \u00e9lev\u00e9s des mati\u00e8res mises en oeuvre dans ces batteries (Oxydes de Cobalt ou de Nickel, \u00e9lectrolytes organiques, s\u00e9parateurs, etc.) limitent leur domaine d&rsquo;application. On peut ais\u00e9ment r\u00eaver d&rsquo;une batterie dont le prix doublerait ou plus le co\u00fbt de la voiture \u00e9lectrique.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; TONEN Chemical Corporation, une filiale d&rsquo;Exxon-Mobil au Japon, est le premier fournisseur mondial de s\u00e9parateurs pour batteries de type Lithium-ION qui \u00e9quipent la plupart des \u00e9quipements portables actuels(ordinateurs, portables,t\u00e9l\u00e9phones, etc.). Le produit standard, obtenu par co-extrusion en voie humide, est un film de poly\u00e9thyl\u00e8ne microporeux. Ce produit, en cas d&rsquo;accroissement involontaire [&hellip;]<\/p>\n","protected":false},"author":341,"featured_media":6900,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-3458","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-vehicules-electriques"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Un nouveau s\u00e9parateur pour batteries Lithium-ION - leblogenergie.com<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blogs.thesocialmedia.com\/leblogenergie\/2007\/11\/28\/un-nouveau-spar\/\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"Un nouveau s\u00e9parateur pour batteries Lithium-ION - leblogenergie.com\" \/>\n<meta name=\"twitter:description\" content=\"&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; TONEN Chemical Corporation, une filiale d&rsquo;Exxon-Mobil au Japon, est le premier fournisseur mondial de s\u00e9parateurs pour batteries de type Lithium-ION qui \u00e9quipent la plupart des \u00e9quipements portables actuels(ordinateurs, portables,t\u00e9l\u00e9phones, etc.). Le produit standard, obtenu par co-extrusion en voie humide, est un film de poly\u00e9thyl\u00e8ne microporeux. 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