{"id":109,"date":"2011-07-21T08:29:29","date_gmt":"2011-07-21T08:29:29","guid":{"rendered":"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/2011\/07\/21\/la-guerre-du-18650-concretise-les-progres-techniques-japonais-dans-les-batteries-li-ion\/"},"modified":"2012-07-12T12:34:59","modified_gmt":"2012-07-12T12:34:59","slug":"la-guerre-du-18650-concretise-les-progres-techniques-japonais-dans-les-batteries-li-ion","status":"publish","type":"post","link":"https:\/\/blogs.thesocialmedia.com\/leblogenergie\/2011\/07\/21\/la-guerre-du-18650-concretise-les-progres-techniques-japonais-dans-les-batteries-li-ion\/","title":{"rendered":"La guerre du 18650 concr\u00e9tise les progr\u00e8s techniques japonais dans les batteries Li-Ion"},"content":{"rendered":"<p>&#160; L&#039;industrie japonaise des composants pour produits grand-publics ou professionnels que sont les batteries de quelques Watts ou dizaines de Watts applique depuis des d\u00e9cennies toujours la m\u00eame recette pour conserver son leadership mondial sur le segment haut de gamme aux prix r\u00e9mun\u00e9rateurs: le progr\u00e8s technologique. Cette lutte fratricide entre les grands industriels du secteur (Panasonic-Sanyo, Sony, Toshiba, etc.) a cr\u00e9\u00e9 dans les faits un formidable cluster japonais des batteries au travers d&#039;un vaste r\u00e9seau de sous-traitants, o\u00f9 se r\u00e9alise l&#039;essentiel des progr\u00e8s dans les divers ingr\u00e9dients ou composants qui entrent dans ces produits.<\/p>\n<p><a href=\"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/files\/2012\/07\/6a00d83451b18369e20153900fd04e970b-pi.jpg\"><img decoding=\"async\" alt=\"Sony-Nexelion\" class=\"asset  asset-image at-xid-6a00d83451b18369e20153900fd04e970b\" src=\"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/files\/2012\/07\/6a00d83451b18369e20153900fd04e970b-250wi.jpg\" style=\"width: 230px;margin: 0px 5px 5px 0px\" \/><\/a>&#160; L&#039;annonce de Sony d&#039;un nouvel accumulateur 18650 de la famille Nexelion de 3,5 Ah de capacit\u00e9 illustre ce propos. D&#039;apr\u00e8s le Nikkei, toujours bien inform\u00e9, ce produit largement am\u00e9lior\u00e9 par rapport \u00e0 la premi\u00e8re g\u00e9n\u00e9ration sortie en 2005 sur un produit 4\/5AA pour camcorder, int\u00e8gre les innovations suivantes:<\/p>\n<p>&#8211; une \u00e9lectrode n\u00e9gative \u00e0 base d&#039;\u00e9tain, cobalt, carbone de tr\u00e8s forte capacit\u00e9 volumique mais dimensionnellement stable en cyclage malgr\u00e9 la &quot;respiration&quot; de l&#039;\u00e9tain lors de l&#039;insertion d&#039;atomes de lithium en son sein,<\/p>\n<p>-une \u00e9lectrode positive \u00e0 base de LiCoO2 rev\u00eatue d&#039;un coating en surface pour pouvoir charger l&#039;ensemble \u00e0 4,3V au lieu de 4,2V classiquement. Cette accroissement de la tension de charge am\u00e9liore le rendement massique de la mati\u00e8re \u00e9lectroactive d&#039;au moins 10%.<\/p>\n<p>-un s\u00e9parateur c\u00e9ramique-polyol\u00e9fine microporeux qui assure une meilleure s\u00e9curit\u00e9 en cas d&#039;\u00e9chauffement intempestif de l&#039;accumulateur.<\/p>\n<p>L&#039;assemblage par spiralage de ces composants complexes conduit \u00e0 un produit tr\u00e8s dense (d= 3,2) pr\u00e9sentant une \u00e9nergie volumique de 723 Wh\/litre affirme le constructeur.<\/p>\n<p>Il est int\u00e9ressant de comparer ces performances \u00e0 celles pronostiqu\u00e9es en D\u00e9cembre 2009 par Panasonic pour <a href=\"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/files\/2012\/07\/dans-le-cadre-dune-strategie-agressive-panasonic-annonce-longtemps-a-lavance-de-nouveaux-produits-li.html_.png\" target=\"_self\">ses futurs \u00e9l\u00e9ments 18650<\/a> \u00e0 base de LiNiO2 et d&#039;anodes au Carbone puis au Silicium (TAB.).<\/p>\n<p><a href=\"http:\/\/clabedan.typepad.com\/.a\/6a00d83451b18369e2014e8a03157c970d-pi\"><img decoding=\"async\" alt=\"Panasonic-Sony-18650\" class=\"asset  asset-image at-xid-6a00d83451b18369e2014e8a03157c970d\" src=\"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/files\/2012\/07\/6a00d83451b18369e2014e8a03157c970d-450wi.jpg\" style=\"width: 450px\" \/><\/a><\/p>\n<p>&#160;Le produit Nexelion a une ann\u00e9e d&#039;avance sur le produit Panasonic annonc\u00e9 pour 2012. Il faut donc s&#039;attendre \u00e0 une acc\u00e9l\u00e9ration de la part de Panasonic dans le d\u00e9veloppement et l&#039;industrialisation de son futur produit de 4 Ah \u00e0 anode de Silicium initialement pr\u00e9vu pour 2013.<\/p>\n<p>LIRE <a href=\"http:\/\/techon.nikkeibp.co.jp\/english\/NEWS_EN\/20110720\/193457\/\" target=\"_blank\">l&#039;annonce du Nikkei <\/a>sur le 18650 Nexelion.<\/p>\n<p>Le 21 Juillet 2011<\/p>\n<p>&#160;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>&#160; L&#039;industrie japonaise des composants pour produits grand-publics ou professionnels que sont les batteries de quelques Watts ou dizaines de Watts applique depuis des d\u00e9cennies toujours la m\u00eame recette pour conserver son leadership mondial sur le segment haut de gamme aux prix r\u00e9mun\u00e9rateurs: le progr\u00e8s technologique. Cette lutte fratricide entre les grands industriels du secteur [&hellip;]<\/p>\n","protected":false},"author":341,"featured_media":22939,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5,12],"tags":[],"class_list":["post-109","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualites","category-games"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>La guerre du 18650 concr\u00e9tise les progr\u00e8s techniques japonais dans les batteries Li-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\/2011\/07\/21\/la-guerre-du-18650-concretise-les-progres-techniques-japonais-dans-les-batteries-li-ion\/\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"La guerre du 18650 concr\u00e9tise les progr\u00e8s techniques japonais dans les batteries Li-Ion - leblogenergie.com\" \/>\n<meta name=\"twitter:description\" content=\"&#160; L&#039;industrie japonaise des composants pour produits grand-publics ou professionnels que sont les batteries de quelques Watts ou dizaines de Watts applique depuis des d\u00e9cennies toujours la m\u00eame recette pour conserver son leadership mondial sur le segment haut de gamme aux prix r\u00e9mun\u00e9rateurs: le progr\u00e8s technologique. 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