{"id":2672,"date":"2008-04-26T10:00:45","date_gmt":"2008-04-26T10:00:45","guid":{"rendered":"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/2008\/04\/26\/les-oxocarbones\/"},"modified":"2012-07-12T10:36:27","modified_gmt":"2012-07-12T10:36:27","slug":"les-oxocarbones","status":"publish","type":"post","link":"https:\/\/blogs.thesocialmedia.com\/leblogenergie\/2008\/04\/26\/les-oxocarbones\/","title":{"rendered":"Les oxocarbones: de vieux produits soudainement promus comme \u00e9cologiques"},"content":{"rendered":"<p>&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; L&rsquo;Universit\u00e9 de Picardie, avec le Professeur Tarascon et son \u00e9quipe, rend compte d&rsquo;un &quot;nouveau&quot; mat\u00e9riau comme mati\u00e8re \u00e9lectrochimiquement active pour les accumulateurs Lithium-Ion: le sel d&rsquo;oxocarbone Li2C6O6. Ce produit pr\u00e9sent\u00e9 comme un produit \u00e9cologique, est en fait le sel de Lithium de l&rsquo;acide Rhodizonique connu depuis des d\u00e9cades. Cette famille d&rsquo;acides organiques cycliques \u00e9tait alors pr\u00e9sent\u00e9e comme un ensemble de d\u00e9riv\u00e9s du monoxyde de carbone.<a href=\"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/files\/2012\/07\/oxoacides21.gif\"><img loading=\"lazy\" decoding=\"async\" height=\"249\" alt=\"Oxoacides2\" src=\"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/files\/2012\/07\/oxoacides2.gif\" width=\"459\"  \/><\/a> <a href=\"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/files\/2012\/07\/oxoacides.gif\"><\/a> <\/p>\n<p>&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;Ces produits pr\u00e9sentent beaucoup d&rsquo;int\u00e9r\u00eat dans tout le domaine de l&rsquo;\u00e9lectrochimie comme sels ou comme greffons de membranes perms\u00e9lectives. L&rsquo;\u00e9quipe de l&rsquo;universit\u00e9 de Picardie vient de montrer que le sel de Lithium de l&rsquo;acide rhodizonique, obtenu \u00e0 partir de v\u00e9g\u00e9taux,  pouvait \u00eatre oxyd\u00e9 en milieu organique et donc constituer une mati\u00e8re \u00e9lectrochimiquement active. Les capacit\u00e9s massiques et volumiques \u00e0 faible r\u00e9gime de d\u00e9charge sont int\u00e9ressantes, mais elles s&rsquo;\u00e9croulent au r\u00e9gime de d\u00e9charge en une heure, par manque de conductivit\u00e9 \u00e9lectronique. <a href=\"http:\/\/clabedan.typepad.com\/photos\/uncategorized\/2008\/04\/26\/oxo21.png\"><img loading=\"lazy\" decoding=\"async\" height=\"643\" alt=\"Oxo21\" src=\"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/files\/2012\/07\/oxo21.png\" width=\"423\"  \/><\/a><\/p>\n<p>&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp; L&rsquo;absence de m\u00e9tal de transition qui est passionnante d&rsquo;un point de vue \u00e9conomique, se fait regretter en d\u00e9charge rapide.<\/p>\n<p>&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;Si les produits d&rsquo;oxydation s&rsquo;av\u00e9raient \u00eatre tr\u00e8s stables et si la dur\u00e9e de vie en cyclage lent pouvait \u00eatre excellente, ces produits seraient des candidats d\u00e9sign\u00e9s pour le stockage d&rsquo;\u00e9nergie \u00e9lectrique de masse, coupl\u00e9 aux sources solaires ou \u00e9oliennes. En effet leur association \u00e0 une \u00e9lectrode n\u00e9gative de carbone conduirait \u00e0 une batterie dont la composition \u00e9lectrochimique&nbsp; ne ferait appel \u00e0 aucun m\u00e9tal de transition. Mais la probabilit\u00e9 de r\u00e9pondre \u00e0 ces sp\u00e9cifications n&rsquo;est pas \u00e9vidente.<\/p>\n<p>Le 26 Avril 2008<\/p>\n<p>&#8211;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; L&rsquo;Universit\u00e9 de Picardie, avec le Professeur Tarascon et son \u00e9quipe, rend compte d&rsquo;un &quot;nouveau&quot; mat\u00e9riau comme mati\u00e8re \u00e9lectrochimiquement active pour les accumulateurs Lithium-Ion: le sel d&rsquo;oxocarbone Li2C6O6. Ce produit pr\u00e9sent\u00e9 comme un produit \u00e9cologique, est en fait le sel de Lithium de l&rsquo;acide Rhodizonique [&hellip;]<\/p>\n","protected":false},"author":341,"featured_media":8619,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-2672","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualites"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Les oxocarbones: de vieux produits soudainement promus comme \u00e9cologiques - 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\/2008\/04\/26\/les-oxocarbones\/\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"Les oxocarbones: de vieux produits soudainement promus comme \u00e9cologiques - leblogenergie.com\" \/>\n<meta name=\"twitter:description\" content=\"&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; L&rsquo;Universit\u00e9 de Picardie, avec le Professeur Tarascon et son \u00e9quipe, rend compte d&rsquo;un &quot;nouveau&quot; mat\u00e9riau comme mati\u00e8re \u00e9lectrochimiquement active pour les accumulateurs Lithium-Ion: le sel d&rsquo;oxocarbone Li2C6O6. 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&nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; L&rsquo;Universit\u00e9 de Picardie, avec le Professeur Tarascon et son \u00e9quipe, rend compte d&rsquo;un &quot;nouveau&quot; mat\u00e9riau comme mati\u00e8re \u00e9lectrochimiquement active pour les accumulateurs Lithium-Ion: le sel d&rsquo;oxocarbone Li2C6O6. 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