{"id":5519,"date":"2026-03-25T10:55:32","date_gmt":"2026-03-25T09:55:32","guid":{"rendered":"https:\/\/www.crittm2a.com\/fr\/?p=5519"},"modified":"2026-03-25T10:55:32","modified_gmt":"2026-03-25T09:55:32","slug":"comprendre-le-vieillissement-des-batteries-lithium-ion-sans-ouvrir-la-cellule-grace-a-lanalyse-de-capacite-incrementale","status":"publish","type":"post","link":"https:\/\/www.crittm2a.com\/fr\/comprendre-le-vieillissement-des-batteries-lithium-ion-sans-ouvrir-la-cellule-grace-a-lanalyse-de-capacite-incrementale\/","title":{"rendered":"Analyse capacit\u00e9 incr\u00e9mentale batterie : comprendre le vieillissement"},"content":{"rendered":"<p style=\"text-align: justify;\" data-start=\"291\" data-end=\"567\">L\u2019analyse capacit\u00e9 incr\u00e9mentale batterie est aujourd\u2019hui une m\u00e9thode cl\u00e9 pour comprendre le vieillissement des batteries lithium-ion. Elle permet d\u2019\u00e9valuer l\u2019\u00e9tat de sant\u00e9 (SOH) sans ouvrir la cellule. Ainsi, elle r\u00e9pond \u00e0 un enjeu majeur pour la performance et la durabilit\u00e9.<\/p>\n<p style=\"text-align: justify;\" data-start=\"569\" data-end=\"882\">Contrairement aux m\u00e9thodes classiques, cette approche repose sur l\u2019analyse du signal dQ\/dV, mesur\u00e9 lors de cycles de charge ou de d\u00e9charge \u00e0 courant constant. Ce signal r\u00e9v\u00e8le des signatures caract\u00e9ristiques, sous forme de pics et de variations, qui traduisent directement les ph\u00e9nom\u00e8nes physicochimiques internes au sein de la cellule.<\/p>\n<p style=\"text-align: justify;\" data-start=\"884\" data-end=\"1187\">Gr\u00e2ce \u00e0 l\u2019analyse capacit\u00e9 incr\u00e9mentale batterie, les \u00e9quipes peuvent suivre l\u2019\u00e9volution des cellules au fil du temps et identifier plus facilement les pertes de performance. Par cons\u00e9quent, elles comprennent mieux les m\u00e9canismes de d\u00e9gradation, tout en b\u00e9n\u00e9ficiant d\u2019une m\u00e9thode qui ne n\u00e9cessite aucun test destructif.<\/p>\n<p style=\"text-align: justify;\" data-start=\"1189\" data-end=\"1508\">Chez CRITT M2A, cette approche est utilis\u00e9e dans le cadre du projet RECYBAT, avec des travaux qui portent sur plusieurs param\u00e8tres cl\u00e9s du vieillissement. Par exemple, les \u00e9quipes analysent les courbes \u00e0 diff\u00e9rents stades de cycle afin de suivre l\u2019\u00e9volution des performances, tout en \u00e9tudiant l\u2019impact de la temp\u00e9rature sur les m\u00e9canismes de d\u00e9gradation. Enfin, elles observent le comportement des batteries dans des conditions proches de l\u2019usage r\u00e9el, ce qui permet d\u2019obtenir des donn\u00e9es repr\u00e9sentatives et directement exploitables.<\/p>\n<p style=\"text-align: justify;\" data-start=\"1510\" data-end=\"1731\">Les r\u00e9sultats obtenus \u00e0 25\u00b0C confirment l\u2019int\u00e9r\u00eat de cette m\u00e9thode. En effet, l\u2019analyse capacit\u00e9 incr\u00e9mentale batterie permet d\u2019anticiper le vieillissement et contribue \u00e0 am\u00e9liorer la durabilit\u00e9 des syst\u00e8mes.<\/p>\n<p style=\"text-align: justify;\" data-start=\"1733\" data-end=\"1987\">Ce projet, cofinanc\u00e9 par l\u2019Union europ\u00e9enne, illustre cet engagement. Ainsi, CRITT M2A renforce ses actions en faveur de l\u2019innovation. L\u2019objectif est clair : accompagner le d\u00e9veloppement des batteries lithium-ion et soutenir l\u2019\u00e9lectrification des usages.<\/p>\n<p style=\"text-align: justify;\" data-start=\"1733\" data-end=\"1987\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-5520\" src=\"https:\/\/www.crittm2a.com\/wp-content\/uploads\/2026\/03\/1774359398675-300x193.jpg\" alt=\"\" width=\"300\" height=\"193\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>L\u2019analyse capacit\u00e9 incr\u00e9mentale batterie est aujourd\u2019hui une m\u00e9thode cl\u00e9 pour comprendre le vieillissement des batteries lithium-ion. Elle permet d\u2019\u00e9valuer l\u2019\u00e9tat [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":5520,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-5519","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-non-classe"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Critt M2A<\/title>\n<meta name=\"description\" content=\"Comprendre le vieillissement des batteries lithium-ion gr\u00e2ce \u00e0 l\u2019analyse de capacit\u00e9 incr\u00e9mentale (ICA), une m\u00e9thode non intrusive utilis\u00e9e en R&amp;D.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link 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