{"id":449,"date":"2010-03-03T16:51:33","date_gmt":"2010-03-03T16:51:33","guid":{"rendered":"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/2010\/03\/03\/panasonic-veut-accelerer-loffre-daccumulateur-18650-de-4ah-a-anode-a-base-dalliage-de-silicium\/"},"modified":"2012-07-12T12:10:32","modified_gmt":"2012-07-12T12:10:32","slug":"panasonic-veut-accelerer-loffre-daccumulateur-18650-de-4ah-a-anode-a-base-dalliage-de-silicium","status":"publish","type":"post","link":"https:\/\/blogs.thesocialmedia.com\/leblogenergie\/2010\/03\/03\/panasonic-veut-accelerer-loffre-daccumulateur-18650-de-4ah-a-anode-a-base-dalliage-de-silicium\/","title":{"rendered":"Panasonic veut acc\u00e9l\u00e9rer l&rsquo;offre d&rsquo;accumulateurs 18650 de 4Ah \u00e0 anodes \u00e0 base d&rsquo;alliage de silicium"},"content":{"rendered":"<p>&#160;R\u00e9guli\u00e8rement un commentateur avis\u00e9, succ\u00e9dant \u00e0 un des mille et un articles annon\u00e7ant l&#039;in\u00e9luctable p\u00e9nurie de lithium, vient expliquer dans les gazettes que la technologie des batteries est le talon d&#039;Achille de l&#039;\u00e9lectromobilit\u00e9 parce qu&#039;elle ne progresse pas assez vite: elle ne suit pas la loi de Moore ch\u00e8re aux technologies du stockage d&#039;informations et de donn\u00e9es. C&#039;est vrai, la technologie des batteries, mettant en oeuvre des r\u00e9actions d&#039;oxydor\u00e9duction qui doivent se d\u00e9velopper dans la masse des mat\u00e9riaux n&#039;a pas le c\u00f4t\u00e9 flamboyant des composants \u00e9lectroniques mais il est faux de dire que ces technologies n&#039;\u00e9voluent pas. Par exemple, dans le domaine des batteries Li-Ion, depuis que Sony en 1991 a sorti commercialement son premier accumulateur 18650 de 1,2 Ah de capacit\u00e9, il faut reconna\u00eetre que la technologie a fait quelques progr\u00e8s.<\/p>\n<p><a href=\"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/files\/2012\/07\/6a00d83451b18369e20120a8f221bd970b-pi.jpg\"><img decoding=\"async\" alt=\"Panasonic-18650-Si-anode-4Ah\" class=\"asset asset-image at-xid-6a00d83451b18369e20120a8f221bd970b \" src=\"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/files\/2012\/07\/6a00d83451b18369e20120a8f221bd970b-450wi.jpg\" \/><\/a> <\/p>\n<p>&#160;Dans une pr\u00e9sentation de son futur accumulateur 18650 de 4 Ah \u00e0 anode \u00e0 base d&#039;alliage de silicium, Panasonic rappelle fort \u00e0 propos que les capacit\u00e9s des accumulateurs 18650, utilis\u00e9s entre autres dans les ordinateurs portables, ont progress\u00e9 de 11% par an (FIG.). Pour Panasonic qui dispose des \u00e9quipes techniques et industrielles les plus performantes dans ce domaine, l&#039;arriv\u00e9e des nouvelles technologies d&#039;anodes, alli\u00e9es \u00e0 bien d&#039;autres progr\u00e8s, devrait engager les accumulateurs Li-Ion vers une progression de leurs capacit\u00e9s de 18% par an.<\/p>\n<p>&#160;Panasonic annonce donc ce nouveau produit \u00e0 anode \u00e0 base d&#039;alliage de silicium pour une sortie industrielle acc\u00e9l\u00e9r\u00e9e en 2012. Il avait annonc\u00e9 2013 auparavant (<a href=\"http:\/\/www.leblogenergie.com\/2009\/12\/dans-le-cadre-dune-strat%C3%A9gie-agressive-panasonic-annonce-longtemps-%C3%A0-lavance-de-nouveaux-produits-li.html\" title=\"Panasonic\">LIRE<\/a>). Nul doute que l&#039;application des alliages de silicium viendra un jour faire progresser les batteries pour v\u00e9hicules \u00e9lectriques, soit pour miniaturiser les batteries et r\u00e9duire leurs co\u00fbts, soit pour accro\u00eetre l&#039;autonomie des v\u00e9hicules. La traction \u00e9lectrique n&#039;en est qu&#039;\u00e0 ses d\u00e9buts et les r\u00e9serves de Lithium sont consid\u00e9rables.<\/p>\n<p>Le 3 Mars 2010<\/p>\n","protected":false},"excerpt":{"rendered":"<p>&#160;R\u00e9guli\u00e8rement un commentateur avis\u00e9, succ\u00e9dant \u00e0 un des mille et un articles annon\u00e7ant l&#039;in\u00e9luctable p\u00e9nurie de lithium, vient expliquer dans les gazettes que la technologie des batteries est le talon d&#039;Achille de l&#039;\u00e9lectromobilit\u00e9 parce qu&#039;elle ne progresse pas assez vite: elle ne suit pas la loi de Moore ch\u00e8re aux technologies du stockage d&#039;informations et [&hellip;]<\/p>\n","protected":false},"author":341,"featured_media":21765,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5,7],"tags":[],"class_list":["post-449","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualites","category-vehicules-electriques"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - 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