{"id":193082,"date":"2016-11-02T04:25:15","date_gmt":"2016-11-02T04:25:15","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/batteries-lithium-ion-ignifugees\/"},"modified":"2016-11-02T04:25:15","modified_gmt":"2016-11-02T04:25:15","slug":"batteries-lithium-ion-ignifugees","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/batteries-lithium-ion-ignifugees\/","title":{"rendered":"Batteries lithium-ion ignifug\u00e9es"},"content":{"rendered":"

Le probl\u00e8me des piles au lithium-ion actuels vient des solvants organiques volatils utilis\u00e9s qui pr\u00e9sentent un point de combustion relativement bas. Sous forte charge, toutes les batteries peuvent chauffer et les batteries au lithium-ion peuvent aller jusqu’\u00e0 s’enflammer \u00e0 cause de ce solvant sp\u00e9cifique. Les chercheurs italiens et allemands ont r\u00e9ussi \u00e0 remplacer les solvants organiques. Au lieu de la mati\u00e8re organique, ils utilisent un sel inorganique qui a \u00e9t\u00e9 liqu\u00e9fi\u00e9 \u00e0 la temp\u00e9rature ambiante. Ce liquide que l’on appelle ionique pourrait am\u00e9liorer consid\u00e9rablement la r\u00e9sistance au feu des batteries.<\/p>\n

Les liquides ioniques ont \u00e9t\u00e9 \u00e9tudi\u00e9s sur une longue p\u00e9riode en tant que composants d’un \u00e9lectrolyte de faible inflammabilit\u00e9. La facilit\u00e9 d’utilisation \u00e0 long terme des batteries qui utilisent ces liquides a \u00e9t\u00e9 r\u00e9cemment prouv\u00e9e. La pile au lithium-ion d\u00e9velopp\u00e9e par l’Universit\u00e9 de Ferrara et l’Institut de Technologie de Karlsruhe r\u00e9siste \u00e0 des milliers de cycles de charge sans d\u00e9t\u00e9rioration. Les chercheurs ont fait une publication dans le Journal de l’\u00e9nergie et des sciences de l’environnement, publi\u00e9 par la Royal Society of Chemistry.<\/p>\n","protected":false},"excerpt":{"rendered":"

Les batteries lithium-ion sont indispensables comme source d’\u00e9nergie pour des millions d’appareils \u00e9lectroniques, ainsi que pour l’\u00e9lectromobilit\u00e9. Leur inconv\u00e9nient est qu’elles manquent de s\u00e9curit\u00e9 car facilement inflammables, il suffit de se rappeler les probl\u00e8mes de Samsung avec son smartphone haut de gamme. L’Universit\u00e9 de Ferrare et l’Institut de Technologie de Karlsruhe ont unis leurs efforts de recherches afin de trouver un moyen d’apprivoiser les batteries.<\/p>\n","protected":false},"author":11,"featured_media":193083,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[883],"tags":[],"domains":[47],"ppma_author":[1143],"class_list":["post-193082","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technologies","domains-electronique-eci"],"acf":[],"yoast_head":"Batteries lithium-ion ignifug\u00e9es ...<\/title>\n<meta name=\"description\" content=\"Les batteries lithium-ion sont indispensables comme source d'\u00e9nergie pour des millions d'appareils \u00e9lectroniques, ainsi que pour l'\u00e9lectromobilit\u00e9. 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