{"id":318,"date":"2010-09-12T06:25:32","date_gmt":"2010-09-12T06:25:32","guid":{"rendered":"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/2010\/09\/12\/curieusement-gs-yuasa-annonce-un-accumulateur-au-phosphate-de-vanadium\/"},"modified":"2012-07-12T12:19:43","modified_gmt":"2012-07-12T12:19:43","slug":"curieusement-gs-yuasa-annonce-un-accumulateur-au-phosphate-de-vanadium","status":"publish","type":"post","link":"https:\/\/blogs.thesocialmedia.com\/leblogenergie\/2010\/09\/12\/curieusement-gs-yuasa-annonce-un-accumulateur-au-phosphate-de-vanadium\/","title":{"rendered":"Curieusement, GS-YUASA annonce un accumulateur au phosphate de Vanadium"},"content":{"rendered":"<p> <a href=\"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/files\/2012\/07\/6a00d83451b18369e20134873fae98970c-pi.jpg\"><img decoding=\"async\" alt=\"GS-Yuasa-Li-Vanadium-phosphate-cell\" class=\"asset asset-image at-xid-6a00d83451b18369e20134873fae98970c \" src=\"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/files\/2012\/07\/6a00d83451b18369e20134873fae98970c-250wi.jpg\" style=\"width: 230px;margin: 0px 5px 5px 0px\" \/><\/a>&#160; Parmi les divers phosphates lithi\u00e9s susceptibles de constituer la mati\u00e8re \u00e9lectrochimiquement active positive d&#039;un accumulateur Li-Ion la forme r\u00e9duite du phosphate de Vanadium<strong><span style=\"color: #bf005f\"> <span style=\"color: #bf005f\">Li<\/span><\/span><sub><span style=\"color: #bf005f\">3<\/span><\/sub><span style=\"color: #bf005f\">V<\/span><sub><span style=\"color: #bf005f\">2<\/span><\/sub><span style=\"color: #bf005f\">(PO<\/span><sub><span style=\"color: #bf005f\">4<\/span><\/sub><span style=\"color: #bf005f\">)<\/span><sub><span style=\"color: #bf005f\">3<\/span><\/sub><\/strong> pr\u00e9sente une capacit\u00e9 massique th\u00e9orique de 197 Ah\/kg. Cette valeur est obtenue en divisant 3 Faradays correspondant aux trois Lithium de la formule (ou 3 fois 26,8 Ah en unit\u00e9 industrielle) par la somme des masses atomiques des constituants. Elle est sup\u00e9rieure \u00e0 celles du phosphate de Fer lithi\u00e9 (LiFePO4: 170 Ah\/kg) et du phosphate de Mangan\u00e8se lithi\u00e9 (LiMnPO4: 171 Ah\/kg). La courbe de d\u00e9charge du phosphate de Vanadium pur pr\u00e9sente un double palier, mais gr\u00e2ce \u00e0 divers dopants invent\u00e9s par les producteurs d&#039;accumulateurs ou leur tr\u00e8s pr\u00e9cieux sous-traitant chimiste, il est possible d&#039;obtenir une courbe de d\u00e9charge monotone autour des 3,5V. C&#039;est en tous les cas ce qu&#039;annonce le nippon GS-YUASA en pr\u00e9sentant un nouvel accumulateur de 5Ah apparemment d\u00e9velopp\u00e9 avec l&#039;aide du NEDO (New Energy and Industrial Technology Development Organization) japonais. Cet accumulateur con\u00e7u pour d\u00e9livrer de fortes puissances dans des applications de type v\u00e9hicule hybride pr\u00e9sente une \u00e9nergie massique modeste de 55 Wh\/kg et une \u00e9nergie volumique de 92 Wh\/litre.<\/p>\n<p>&#160;Ceci \u00e9tant dit on ne peut voir qu&#039;un avenir assez rapidement born\u00e9 \u00e0 l&#039;aventure industrielle d&#039;un accumulateur \u00e0 base de Vanadium, quelles que soient ses qualit\u00e9s intrins\u00e8ques. Ce m\u00e9tal occupe un march\u00e9 mondial annuel qui devrait revenir en 2010 vers les 60 mille tonnes de 2008. Il est \u00e0 95% mobilis\u00e9 alli\u00e9 au Fer. Une batterie hybride (5Ah, 210V) de 60 accumulateurs utilise plus de 2 kg de phosphate de vanadium dont plus d&#039;une livre de Vanadium pur. Un million d&#039;exemplaires de cette batterie, pour un march\u00e9 annuel de la voiture hybride autour de 10 millions d&#039;exemplaires dans une d\u00e9cennie, conduit \u00e0 une consommation annuelle de plus de 500 tonnes de Vanadium ce qui devient perceptible sur ce march\u00e9 relativement \u00e9troit.&#160;<\/p>\n<p>Le 12 Septembre 2010<\/p>\n","protected":false},"excerpt":{"rendered":"<p>&#160; Parmi les divers phosphates lithi\u00e9s susceptibles de constituer la mati\u00e8re \u00e9lectrochimiquement active positive d&#039;un accumulateur Li-Ion la forme r\u00e9duite du phosphate de Vanadium Li3V2(PO4)3 pr\u00e9sente une capacit\u00e9 massique th\u00e9orique de 197 Ah\/kg. Cette valeur est obtenue en divisant 3 Faradays correspondant aux trois Lithium de la formule (ou 3 fois 26,8 Ah en unit\u00e9 [&hellip;]<\/p>\n","protected":false},"author":341,"featured_media":22207,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[],"class_list":["post-318","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-vehicules-ecologiques"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Curieusement, GS-YUASA annonce un accumulateur au phosphate de Vanadium - 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\/2010\/09\/12\/curieusement-gs-yuasa-annonce-un-accumulateur-au-phosphate-de-vanadium\/\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"Curieusement, GS-YUASA annonce un accumulateur au phosphate de Vanadium - leblogenergie.com\" \/>\n<meta name=\"twitter:description\" content=\"&#160; Parmi les divers phosphates lithi\u00e9s susceptibles de constituer la mati\u00e8re \u00e9lectrochimiquement active positive d&#039;un accumulateur Li-Ion la forme r\u00e9duite du phosphate de Vanadium Li3V2(PO4)3 pr\u00e9sente une capacit\u00e9 massique th\u00e9orique de 197 Ah\/kg. Cette valeur est obtenue en divisant 3 Faradays correspondant aux trois Lithium de la formule (ou 3 fois 26,8 Ah en unit\u00e9 [&hellip;]\" \/>\n<meta name=\"twitter:image\" content=\"https:\/\/blogs.thesocialmedia.com\/leblogenergie\/files\/2012\/07\/6a00d83451b18369e20134873fae98970c-250wi.jpg\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Raymond Bonnaterre\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/blogs.thesocialmedia.com\/leblogenergie\/2010\/09\/12\/curieusement-gs-yuasa-annonce-un-accumulateur-au-phosphate-de-vanadium\/\",\"url\":\"https:\/\/blogs.thesocialmedia.com\/leblogenergie\/2010\/09\/12\/curieusement-gs-yuasa-annonce-un-accumulateur-au-phosphate-de-vanadium\/\",\"name\":\"Curieusement, GS-YUASA annonce un accumulateur au phosphate de Vanadium - 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