{"id":14643,"date":"2022-06-28T09:22:39","date_gmt":"2022-06-28T01:22:39","guid":{"rendered":"https:\/\/battery9999.com\/fr\/?p=14643"},"modified":"2022-06-28T09:22:39","modified_gmt":"2022-06-28T01:22:39","slug":"samsung-sdi-developpe-des-cellules-cylindriques-plus-courtes","status":"publish","type":"post","link":"https:\/\/battery9999.com\/fr\/samsung-sdi-developpe-des-cellules-cylindriques-plus-courtes\/","title":{"rendered":"Samsung SDI d\u00e9veloppe des cellules cylindriques plus courtes"},"content":{"rendered":"

\"\"<\/p>\n

Selon les m\u00e9dias cor\u00e9ens, Samsung SDI ne se contente pas de d\u00e9velopper des cellules de batterie au format 4680 pour Tesla, mais \u00e9galement des cellules beaucoup plus courtes avec exactement le m\u00eame diam\u00e8tre pour d\u2019autres constructeurs de voitures et de camions. Un client potentiel vient probablement d\u2019Allemagne.<\/p>\n

La publication cor\u00e9enne \u00e9crit que Samsung SDI ne teste pas seulement les cellules de batterie au format demand\u00e9 par\u00a0Tesla<\/a>\u00a0avec un diam\u00e8tre de 46\u00a0mm et une hauteur de 80\u00a0mm, mais aussi d\u2019autres versions qui ont \u00e9galement un diam\u00e8tre de 46 mm mais une hauteur comprise entre 40 et 60 mm. Le d\u00e9veloppement par la soci\u00e9t\u00e9 sud-cor\u00e9enne des cellules 4680 est devenu clair en juillet 2021.<\/p>\n

Selon ce dernier rapport, Samsung SDI souhaite utiliser des versions beaucoup plus courtes pour BMW, Volvo et Stellantis. Par exemple, deux cellules de batterie d\u2019une taille de 46\u00a0mm et d\u2019une longueur de 40\u00a0mm chacune (c\u2019est-\u00e0-dire une cellule 4640) pourraient \u00eatre empil\u00e9es l\u2019une sur l\u2019autre, cr\u00e9ant ainsi une batterie \u00e0 deux couches.<\/p>\n

Le des versions plus courtes ne sont pas seulement \u00e0 d\u00e9velopper pour donner aux constructeurs plus d\u2019options dans le style des modules et des packs mais \u00e9galement pour diminuer les probl\u00e8mes de production.<\/p>\n

Le proc\u00e9d\u00e9 \u00ab\u00a0jelly roll\u00a0\u00bb (c\u2019est-\u00e0-dire enrouler la cathode, l\u2019anode et feuille de s\u00e9paration) est plus difficile avec de longues cellules rondes, et la longueur peut probablement aussi entra\u00eener des difficult\u00e9s \u00e0 remplir l\u2019\u00e9lectrolyte. Dans un autre exemple, les languettes d\u2019extension dans les cellules cylindriques doivent \u00eatre repli\u00e9es, ce qui n\u00e9cessite des dispositifs de production sp\u00e9ciaux.<\/p>\n

Une batterie plus longue implique \u00e9galement que les \u00e9lectrolytes peuvent s\u2019\u00e9chapper plus rapidement lorsqu\u2019ils sont inject\u00e9s. Ici, la zone entre la canette et le capuchon doit \u00e9galement \u00eatre nettoy\u00e9e, c\u2019est pourquoi Samsung SDI se pr\u00e9pare \u00e0 utiliser l\u2019innovation laser de gravure \u00e0 cette fin.<\/p>\n

En mai, a signal\u00e9 que BMW pourrait passer aux cellules rondes pour le nouveau classe \u2013 jusqu\u2019\u00e0 pr\u00e9sent, le constructeur automobile a effectivement compt\u00e9 sur des cellules prismatiques. Telles qu\u2019elles sont compos\u00e9es, les toutes nouvelles cellules doivent \u00eatre fabriqu\u00e9es par des fournisseurs BMW existants et Samsung SDI est connu pour en faire partie. Les nouvelles cellules rondes de BMW sont cens\u00e9es d\u00e9passer la densit\u00e9 d\u2019\u00e9nergie des cellules de\u00a0Tesla<\/a>\u00a0d’\u00a0\u00bbau moins un pourcentage \u00e0 deux chiffres\u00a0\u00bb. Quel format de cellule ronde le constructeur automobile allemand privil\u00e9gie, n\u00e9anmoins, n\u2019a pas \u00e9t\u00e9 pr\u00e9cis\u00e9.<\/p>\n

\u00a0La source:Samsung SDI d\u00e9veloppe des cellules cylindriques plus courtes (lentrepreneur.co)<\/a><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":12,"featured_media":14644,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[795],"tags":[],"class_list":["post-14643","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualites-industrielles"],"yoast_head":"\nSamsung SDI d\u00e9veloppe des cellules cylindriques plus courtes - \u660c\u8467\u80a1\u4efd\u6709\u9650\u516c\u53f8<\/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:\/\/battery9999.com\/fr\/samsung-sdi-developpe-des-cellules-cylindriques-plus-courtes\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Samsung SDI d\u00e9veloppe des cellules cylindriques plus courtes - 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