{"id":39887,"date":"2025-08-26T23:00:14","date_gmt":"2025-08-26T21:00:14","guid":{"rendered":"https:\/\/www.organisator.ch\/de\/?p=39887"},"modified":"2025-08-18T14:04:03","modified_gmt":"2025-08-18T12:04:03","slug":"ki-hilft-bei-der-materialsubstitution","status":"publish","type":"post","link":"https:\/\/www.organisator.ch\/fr\/sustainability\/2025-08-26\/ki-hilft-bei-der-materialsubstitution\/","title":{"rendered":"L'IA aide \u00e0 la substitution de mat\u00e9riaux"},"content":{"rendered":"
\"Remplacer
Remplacer les mati\u00e8res premi\u00e8res critiques : Un outil de substitution de mat\u00e9riaux \u00e9value les alternatives. \u00a9 Fraunhofer IPA\/photo : Rainer Bez<\/figcaption><\/figure>\n

Le cobalt est utilis\u00e9 dans les batteries lithium-ion des v\u00e9hicules \u00e9lectriques et joue donc un r\u00f4le important dans la transition \u00e9nerg\u00e9tique. Mais ce m\u00e9tal gris argent\u00e9 fait partie des mati\u00e8res premi\u00e8res critiques pour plusieurs raisons : Le cobalt est rare. Il ne repr\u00e9sente que 0,004 % de l'ensemble de la cro\u00fbte terrestre. Les r\u00e9serves mondiales connues de cobalt sont estim\u00e9es \u00e0 7,2 millions de tonnes. Plus de la moiti\u00e9 de ces r\u00e9serves, soit environ quatre millions de tonnes, se trouvent sur le territoire de la R\u00e9publique d\u00e9mocratique du Congo. Les conditions de travail dans les mines de ce pays instable d'Afrique centrale sont souvent mauvaises et les dommages environnementaux caus\u00e9s par l'extraction du minerai sont importants.<\/p>\n

Qu'il s'agisse d'un manque de s\u00e9curit\u00e9 d'approvisionnement, de prix trop \u00e9lev\u00e9s sur le march\u00e9 mondial, de pr\u00e9occupations \u00e9thiques, d'interdictions ou d'innovations de produits avec de meilleures propri\u00e9t\u00e9s de mat\u00e9riaux : Les entreprises ont de nombreuses raisons de rechercher des mat\u00e9riaux alternatifs. \"Il existe certes des bases de donn\u00e9es auxquelles les d\u00e9veloppeurs de produits peuvent se r\u00e9f\u00e9rer pour leurs recherches. Mais elles ne fournissent souvent pas de r\u00e9sultats utilisables, car elles ne tiennent pas compte du cas d'application pr\u00e9cis dans l'entreprise\", explique Charlotte Schmidt de l'\u00e9quipe de recherche Sustainability and Material Compliance Management \u00e0 l'Institut Fraunhofer pour les techniques de production et l'automatisation IPA \u00e0 Stuttgart.<\/p>\n

L'IA passe au crible les publications scientifiques<\/h3>\n

Afin de faciliter la recherche et d'obtenir des r\u00e9sultats plus appropri\u00e9s, Schmidt a d\u00e9velopp\u00e9 avec deux coll\u00e8gues un outil de substitution de mat\u00e9riaux assist\u00e9 par IA. Par le biais d'un masque de saisie, les utilisateurs doivent d'abord fournir des d\u00e9tails sp\u00e9cifiques sur le mat\u00e9riau ou la mati\u00e8re premi\u00e8re qu'ils souhaitent remplacer, puis indiquer les propri\u00e9t\u00e9s requises du mat\u00e9riau de substitution ainsi que des informations sur le contexte de l'utilisation souhait\u00e9e du mat\u00e9riau. S'ensuit une recherche d'IA qui permet d'explorer la base de donn\u00e9es \"Semantic Scholar\" en fonction des donn\u00e9es sp\u00e9cifiques et des exigences des utilisateurs. En comparant les donn\u00e9es de l'utilisateur avec les informations disponibles dans la base de donn\u00e9es, l'IA identifie les mat\u00e9riaux alternatifs appropri\u00e9s.<\/p>\n

La connexion IA pour la substitution de mat\u00e9riaux n'est qu'une des nombreuses composantes avec lesquelles les chercheuses aident les entreprises \u00e0 trouver des mati\u00e8res premi\u00e8res, des mat\u00e9riaux ou des substances chimiques de substitution. En effet, une fois que l'IA a rempli sa mission, elle soumet les substituts propos\u00e9s ainsi que les mat\u00e9riaux de base \u00e0 une \u00e9valuation compl\u00e8te dans laquelle elle prend en compte les aspects juridiques, \u00e9cologiques et sociaux ainsi que la s\u00e9curit\u00e9 d'approvisionnement. Dans le cadre d'un \u00e9change \u00e9troit avec l'entreprise concern\u00e9e, les scientifiques v\u00e9rifient ensuite dans quelle mesure les mat\u00e9riaux propos\u00e9s r\u00e9pondent exactement aux exigences sp\u00e9cifiques. Un rapport est r\u00e9dig\u00e9 \u00e0 la fin du processus. Celui-ci pr\u00e9sente les substituts les plus appropri\u00e9s ainsi que l'\u00e9valuation des diff\u00e9rents crit\u00e8res. Les scientifiques offrent ainsi aux entreprises une base de d\u00e9cision fond\u00e9e.<\/p>\n

Les premiers tests le montrent : La connexion \u00e0 l'IA est prometteuse<\/h3>\n

Comme alternative au cobalt, l'outil de substitution de mat\u00e9riaux assist\u00e9 par IA propose notamment du fer. \"Ce n'est certes pas une d\u00e9couverte r\u00e9cente que l'oxyde de lithium-nickel-mangan\u00e8se-cobalt peut \u00eatre remplac\u00e9 par du phosphate de lithium-fer pour les cathodes des batteries\", explique Schmidt. \"Mais ce r\u00e9sultat et d'autres nous ont montr\u00e9 que la connexion IA est prometteuse dans la recherche de mat\u00e9riaux alternatifs\".<\/p>\n

 <\/p>\n

\n

\u00c0 propos du projet de recherche<\/h3>\n

L'outil de substitution de mat\u00e9riaux assist\u00e9 par l'IA a \u00e9t\u00e9 cr\u00e9\u00e9 dans le cadre du projet de recherche \"Usine ultra-efficace - Deep Dive\", qui a d\u00e9but\u00e9 en avril 2024 et se poursuivra jusqu'\u00e0 fin ao\u00fbt 2025. Le projet de recherche est soutenu par le minist\u00e8re de l'environnement, du climat et de l'\u00e9nergie du Bade-Wurtemberg avec un total de 1,4 million d'euros. D'autres partenaires \u00e9conomiques et scientifiques sont \u00e9galement impliqu\u00e9s dans le projet.<\/p>\n

www.ipa.fraunhofer.de<\/a><\/p>\n<\/blockquote>","protected":false},"excerpt":{"rendered":"

Il existe de nombreuses raisons pour lesquelles les entreprises doivent remplacer certaines mati\u00e8res premi\u00e8res ou mat\u00e9riaux par d'autres. La recherche d'alternatives est fastidieuse et n'aboutit souvent \u00e0 aucun r\u00e9sultat. Une \u00e9quipe de recherche du Fraunhofer IPA a d\u00e9velopp\u00e9 un outil de substitution de mat\u00e9riaux assist\u00e9 par l'IA. <\/p>","protected":false},"author":1,"featured_media":39886,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_yoast_wpseo_focuskw":"Materialsubstitution","_yoast_wpseo_metadesc":"Alternative Materialien finden: Ein Forschungsteam vom Fraunhofer IPA hat ein KI-unterst\u00fctztes Tool zur Materialsubstitution entwickelt.","articlekey":"171190","footnotes":""},"categories":[580],"tags":[218,319,2843,1787],"class_list":["post-39887","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sustainability","tag-forschung","tag-kuenstliche-intelligenz","tag-materialforschung","tag-nachhaltigkeit"],"acf":[],"yoast_head":"\nKI hilft bei der Materialsubstitution - Organisator<\/title>\n<meta name=\"description\" content=\"Alternative Materialien finden: Ein Forschungsteam vom Fraunhofer IPA hat ein KI-unterst\u00fctztes Tool zur Materialsubstitution entwickelt.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.organisator.ch\/fr\/sustainability\/2025-08-26\/ki-hilft-bei-der-materialsubstitution\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"KI hilft bei der Materialsubstitution - 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