{"id":4060,"date":"2025-10-29T09:49:42","date_gmt":"2025-10-29T08:49:42","guid":{"rendered":"https:\/\/www.unys-sciences.fr\/?p=4060"},"modified":"2025-12-17T16:50:29","modified_gmt":"2025-12-17T15:50:29","slug":"et-si-la-transition-verte-se-gagnait-grace-a-nos-batteries-usees","status":"publish","type":"post","link":"https:\/\/www.unys-sciences.fr\/en\/et-si-la-transition-verte-se-gagnait-grace-a-nos-batteries-usees\/","title":{"rendered":"Et si la transition verte se gagnait gr\u00e2ce \u00e0 nos batteries us\u00e9es ?"},"content":{"rendered":"<p><span style=\"font-size: 14pt;\">Derri\u00e8re chaque batterie, chaque aimant d\u2019\u00e9olienne, chaque moteur \u00e9lectrique, se cache un monde invisible : celui des m\u00e9taux strat\u00e9giques. Alexandre Chagnes, chercheur \u00e0 l\u2019Universit\u00e9 de Lorraine, expert Unys, nous emm\u00e8ne dans les coulisses de leurs vies multiples, entre extraction, recyclage et d\u00e9fis g\u00e9opolitiques.<\/span><\/p>\n<p>En 2025, la transition \u00e9nerg\u00e9tique s\u2019acc\u00e9l\u00e8re, mais nos d\u00e9pendances aux m\u00e9taux strat\u00e9giques s\u2019intensifient. Face \u00e0 l\u2019\u00e9puisement des ressources naturelles et aux tensions g\u00e9opolitiques, le recyclage des mat\u00e9riaux critiques devient un levier cl\u00e9 pour l\u2019autonomie europ\u00e9enne. Dans ce contexte, mieux comprendre la seconde vie de nos batteries et aimants n\u2019est plus seulement une question technique : c\u2019est un enjeu industriel, \u00e9cologique et strat\u00e9gique.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Derri\u00e8re chaque batterie, chaque aimant d\u2019\u00e9olienne, chaque moteur \u00e9lectrique, se cache un monde invisible : celui des m\u00e9taux strat\u00e9giques. Alexandre Chagnes, expert Unys, nous emm\u00e8ne dans les coulisses de leurs vies multiples.<\/p>\n","protected":false},"author":2,"featured_media":4177,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[6,8,29],"tags":[],"class_list":["post-4060","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-energie","category-materiaux","category-transition-energetique","nos-formats-nos-articles-signatures"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Et si la transition verte se gagnait gr\u00e2ce \u00e0 nos batteries us\u00e9es ? - Unys<\/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:\/\/www.unys-sciences.fr\/en\/et-si-la-transition-verte-se-gagnait-grace-a-nos-batteries-usees\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Et si la transition verte se gagnait gr\u00e2ce \u00e0 nos batteries us\u00e9es ? - Unys\" \/>\n<meta property=\"og:description\" content=\"Derri\u00e8re chaque batterie, chaque aimant d\u2019\u00e9olienne, chaque moteur \u00e9lectrique, se cache un monde invisible : celui des m\u00e9taux strat\u00e9giques. Alexandre Chagnes, expert Unys, nous emm\u00e8ne dans les coulisses de leurs vies multiples.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.unys-sciences.fr\/en\/et-si-la-transition-verte-se-gagnait-grace-a-nos-batteries-usees\/\" \/>\n<meta property=\"og:site_name\" content=\"Unys\" \/>\n<meta property=\"article:published_time\" content=\"2025-10-29T08:49:42+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-12-17T15:50:29+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.unys-sciences.fr\/wp-content\/uploads\/2025\/10\/Couv_Batteries.png\" \/>\n\t<meta property=\"og:image:width\" content=\"500\" \/>\n\t<meta property=\"og:image:height\" content=\"280\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Julia Cavanna\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Julia Cavanna\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.unys-sciences.fr\\\/en\\\/et-si-la-transition-verte-se-gagnait-grace-a-nos-batteries-usees\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.unys-sciences.fr\\\/en\\\/et-si-la-transition-verte-se-gagnait-grace-a-nos-batteries-usees\\\/\"},\"author\":{\"name\":\"Julia Cavanna\",\"@id\":\"https:\\\/\\\/www.unys-sciences.fr\\\/en\\\/#\\\/schema\\\/person\\\/2bdd1b9f66b70e514d0459280fc8a005\"},\"headline\":\"Et si la transition verte se gagnait gr\u00e2ce \u00e0 nos batteries us\u00e9es ?\",\"datePublished\":\"2025-10-29T08:49:42+00:00\",\"dateModified\":\"2025-12-17T15:50:29+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.unys-sciences.fr\\\/en\\\/et-si-la-transition-verte-se-gagnait-grace-a-nos-batteries-usees\\\/\"},\"wordCount\":137,\"publisher\":{\"@id\":\"https:\\\/\\\/www.unys-sciences.fr\\\/en\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.unys-sciences.fr\\\/en\\\/et-si-la-transition-verte-se-gagnait-grace-a-nos-batteries-usees\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.unys-sciences.fr\\\/wp-content\\\/uploads\\\/2025\\\/10\\\/Couv_Batteries.png\",\"articleSection\":[\"\u00c9nergie\",\"Mat\u00e9riaux\",\"Transition \u00e9nerg\u00e9tique\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.unys-sciences.fr\\\/en\\\/et-si-la-transition-verte-se-gagnait-grace-a-nos-batteries-usees\\\/\",\"url\":\"https:\\\/\\\/www.unys-sciences.fr\\\/en\\\/et-si-la-transition-verte-se-gagnait-grace-a-nos-batteries-usees\\\/\",\"name\":\"Et si la transition verte se gagnait gr\u00e2ce \u00e0 nos batteries us\u00e9es ? - Unys\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.unys-sciences.fr\\\/en\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.unys-sciences.fr\\\/en\\\/et-si-la-transition-verte-se-gagnait-grace-a-nos-batteries-usees\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.unys-sciences.fr\\\/en\\\/et-si-la-transition-verte-se-gagnait-grace-a-nos-batteries-usees\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.unys-sciences.fr\\\/wp-content\\\/uploads\\\/2025\\\/10\\\/Couv_Batteries.png\",\"datePublished\":\"2025-10-29T08:49:42+00:00\",\"dateModified\":\"2025-12-17T15:50:29+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.unys-sciences.fr\\\/en\\\/et-si-la-transition-verte-se-gagnait-grace-a-nos-batteries-usees\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.unys-sciences.fr\\\/en\\\/et-si-la-transition-verte-se-gagnait-grace-a-nos-batteries-usees\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.unys-sciences.fr\\\/en\\\/et-si-la-transition-verte-se-gagnait-grace-a-nos-batteries-usees\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.unys-sciences.fr\\\/wp-content\\\/uploads\\\/2025\\\/10\\\/Couv_Batteries.png\",\"contentUrl\":\"https:\\\/\\\/www.unys-sciences.fr\\\/wp-content\\\/uploads\\\/2025\\\/10\\\/Couv_Batteries.png\",\"width\":500,\"height\":280},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.unys-sciences.fr\\\/en\\\/et-si-la-transition-verte-se-gagnait-grace-a-nos-batteries-usees\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Accueil\",\"item\":\"https:\\\/\\\/www.unys-sciences.fr\\\/en\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Et si la transition verte se gagnait gr\u00e2ce \u00e0 nos batteries us\u00e9es ?\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.unys-sciences.fr\\\/en\\\/#website\",\"url\":\"https:\\\/\\\/www.unys-sciences.fr\\\/en\\\/\",\"name\":\"Unys\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.unys-sciences.fr\\\/en\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.unys-sciences.fr\\\/en\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.unys-sciences.fr\\\/en\\\/#organization\",\"name\":\"Unys\",\"url\":\"https:\\\/\\\/www.unys-sciences.fr\\\/en\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.unys-sciences.fr\\\/en\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"\",\"contentUrl\":\"\",\"caption\":\"Unys\"},\"image\":{\"@id\":\"https:\\\/\\\/www.unys-sciences.fr\\\/en\\\/#\\\/schema\\\/logo\\\/image\\\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.unys-sciences.fr\\\/en\\\/#\\\/schema\\\/person\\\/2bdd1b9f66b70e514d0459280fc8a005\",\"name\":\"Julia Cavanna\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/d9150c0bba7ffb0063190c28703dfd9a04ce1ee0b09d7dd4956d77ed6901b8dd?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/d9150c0bba7ffb0063190c28703dfd9a04ce1ee0b09d7dd4956d77ed6901b8dd?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/d9150c0bba7ffb0063190c28703dfd9a04ce1ee0b09d7dd4956d77ed6901b8dd?s=96&d=mm&r=g\",\"caption\":\"Julia Cavanna\"},\"url\":\"https:\\\/\\\/www.unys-sciences.fr\\\/en\\\/author\\\/julia\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Et si la transition verte se gagnait gr\u00e2ce \u00e0 nos batteries us\u00e9es ? - Unys","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.unys-sciences.fr\/en\/et-si-la-transition-verte-se-gagnait-grace-a-nos-batteries-usees\/","og_locale":"en_US","og_type":"article","og_title":"Et si la transition verte se gagnait gr\u00e2ce \u00e0 nos batteries us\u00e9es ? - Unys","og_description":"Derri\u00e8re chaque batterie, chaque aimant d\u2019\u00e9olienne, chaque moteur \u00e9lectrique, se cache un monde invisible : celui des m\u00e9taux strat\u00e9giques. Alexandre Chagnes, expert Unys, nous emm\u00e8ne dans les coulisses de leurs vies multiples.","og_url":"https:\/\/www.unys-sciences.fr\/en\/et-si-la-transition-verte-se-gagnait-grace-a-nos-batteries-usees\/","og_site_name":"Unys","article_published_time":"2025-10-29T08:49:42+00:00","article_modified_time":"2025-12-17T15:50:29+00:00","og_image":[{"width":500,"height":280,"url":"https:\/\/www.unys-sciences.fr\/wp-content\/uploads\/2025\/10\/Couv_Batteries.png","type":"image\/png"}],"author":"Julia Cavanna","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Julia Cavanna","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.unys-sciences.fr\/en\/et-si-la-transition-verte-se-gagnait-grace-a-nos-batteries-usees\/#article","isPartOf":{"@id":"https:\/\/www.unys-sciences.fr\/en\/et-si-la-transition-verte-se-gagnait-grace-a-nos-batteries-usees\/"},"author":{"name":"Julia Cavanna","@id":"https:\/\/www.unys-sciences.fr\/en\/#\/schema\/person\/2bdd1b9f66b70e514d0459280fc8a005"},"headline":"Et si la transition verte se gagnait gr\u00e2ce \u00e0 nos batteries us\u00e9es ?","datePublished":"2025-10-29T08:49:42+00:00","dateModified":"2025-12-17T15:50:29+00:00","mainEntityOfPage":{"@id":"https:\/\/www.unys-sciences.fr\/en\/et-si-la-transition-verte-se-gagnait-grace-a-nos-batteries-usees\/"},"wordCount":137,"publisher":{"@id":"https:\/\/www.unys-sciences.fr\/en\/#organization"},"image":{"@id":"https:\/\/www.unys-sciences.fr\/en\/et-si-la-transition-verte-se-gagnait-grace-a-nos-batteries-usees\/#primaryimage"},"thumbnailUrl":"https:\/\/www.unys-sciences.fr\/wp-content\/uploads\/2025\/10\/Couv_Batteries.png","articleSection":["\u00c9nergie","Mat\u00e9riaux","Transition \u00e9nerg\u00e9tique"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/www.unys-sciences.fr\/en\/et-si-la-transition-verte-se-gagnait-grace-a-nos-batteries-usees\/","url":"https:\/\/www.unys-sciences.fr\/en\/et-si-la-transition-verte-se-gagnait-grace-a-nos-batteries-usees\/","name":"Et si la transition verte se gagnait gr\u00e2ce \u00e0 nos batteries us\u00e9es ? - Unys","isPartOf":{"@id":"https:\/\/www.unys-sciences.fr\/en\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.unys-sciences.fr\/en\/et-si-la-transition-verte-se-gagnait-grace-a-nos-batteries-usees\/#primaryimage"},"image":{"@id":"https:\/\/www.unys-sciences.fr\/en\/et-si-la-transition-verte-se-gagnait-grace-a-nos-batteries-usees\/#primaryimage"},"thumbnailUrl":"https:\/\/www.unys-sciences.fr\/wp-content\/uploads\/2025\/10\/Couv_Batteries.png","datePublished":"2025-10-29T08:49:42+00:00","dateModified":"2025-12-17T15:50:29+00:00","breadcrumb":{"@id":"https:\/\/www.unys-sciences.fr\/en\/et-si-la-transition-verte-se-gagnait-grace-a-nos-batteries-usees\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.unys-sciences.fr\/en\/et-si-la-transition-verte-se-gagnait-grace-a-nos-batteries-usees\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.unys-sciences.fr\/en\/et-si-la-transition-verte-se-gagnait-grace-a-nos-batteries-usees\/#primaryimage","url":"https:\/\/www.unys-sciences.fr\/wp-content\/uploads\/2025\/10\/Couv_Batteries.png","contentUrl":"https:\/\/www.unys-sciences.fr\/wp-content\/uploads\/2025\/10\/Couv_Batteries.png","width":500,"height":280},{"@type":"BreadcrumbList","@id":"https:\/\/www.unys-sciences.fr\/en\/et-si-la-transition-verte-se-gagnait-grace-a-nos-batteries-usees\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Accueil","item":"https:\/\/www.unys-sciences.fr\/en\/"},{"@type":"ListItem","position":2,"name":"Et si la transition verte se gagnait gr\u00e2ce \u00e0 nos batteries us\u00e9es ?"}]},{"@type":"WebSite","@id":"https:\/\/www.unys-sciences.fr\/en\/#website","url":"https:\/\/www.unys-sciences.fr\/en\/","name":"Unys","description":"","publisher":{"@id":"https:\/\/www.unys-sciences.fr\/en\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.unys-sciences.fr\/en\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.unys-sciences.fr\/en\/#organization","name":"Unys","url":"https:\/\/www.unys-sciences.fr\/en\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.unys-sciences.fr\/en\/#\/schema\/logo\/image\/","url":"","contentUrl":"","caption":"Unys"},"image":{"@id":"https:\/\/www.unys-sciences.fr\/en\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/www.unys-sciences.fr\/en\/#\/schema\/person\/2bdd1b9f66b70e514d0459280fc8a005","name":"Julia Cavanna","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/secure.gravatar.com\/avatar\/d9150c0bba7ffb0063190c28703dfd9a04ce1ee0b09d7dd4956d77ed6901b8dd?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/d9150c0bba7ffb0063190c28703dfd9a04ce1ee0b09d7dd4956d77ed6901b8dd?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/d9150c0bba7ffb0063190c28703dfd9a04ce1ee0b09d7dd4956d77ed6901b8dd?s=96&d=mm&r=g","caption":"Julia Cavanna"},"url":"https:\/\/www.unys-sciences.fr\/en\/author\/julia\/"}]}},"_links":{"self":[{"href":"https:\/\/www.unys-sciences.fr\/en\/wp-json\/wp\/v2\/posts\/4060","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.unys-sciences.fr\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.unys-sciences.fr\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.unys-sciences.fr\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.unys-sciences.fr\/en\/wp-json\/wp\/v2\/comments?post=4060"}],"version-history":[{"count":6,"href":"https:\/\/www.unys-sciences.fr\/en\/wp-json\/wp\/v2\/posts\/4060\/revisions"}],"predecessor-version":[{"id":4113,"href":"https:\/\/www.unys-sciences.fr\/en\/wp-json\/wp\/v2\/posts\/4060\/revisions\/4113"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.unys-sciences.fr\/en\/wp-json\/wp\/v2\/media\/4177"}],"wp:attachment":[{"href":"https:\/\/www.unys-sciences.fr\/en\/wp-json\/wp\/v2\/media?parent=4060"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.unys-sciences.fr\/en\/wp-json\/wp\/v2\/categories?post=4060"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.unys-sciences.fr\/en\/wp-json\/wp\/v2\/tags?post=4060"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}