{"id":20607,"date":"2025-12-09T09:09:03","date_gmt":"2025-12-09T01:09:03","guid":{"rendered":"https:\/\/battery9999.com\/fr\/?p=20607"},"modified":"2025-12-09T09:09:15","modified_gmt":"2025-12-09T01:09:15","slug":"stockage-denergie-des-chercheurs-creent-un-materiau-en-graphene-pour-les-supercondensateurs","status":"publish","type":"post","link":"https:\/\/battery9999.com\/fr\/stockage-denergie-des-chercheurs-creent-un-materiau-en-graphene-pour-les-supercondensateurs\/","title":{"rendered":"Stockage d’\u00e9nergie: des chercheurs cr\u00e9ent un mat\u00e9riau en graph\u00e8ne pour les supercondensateurs"},"content":{"rendered":"

Une avanc\u00e9e pour l’\u00e9nergie. Dans une \u00e9tude publi\u00e9e dans la revue Nature Communications<\/a>, des experts de l\u2019universit\u00e9 Monash, en Australie, expliquent avoir mis au point un nouveau type de mat\u00e9riau \u00e0 base de carbone qui pourrait permettre de perfectionner les supercondensateurs,\u00a0“une cat\u00e9gorie \u00e9mergente de dispositifs de stockage d’\u00e9nergie”.<\/em><\/p>\n

Les supercondensateurs sont des dispositifs capables de fournir beaucoup de puissance tr\u00e8s rapidement. Ils constituent \u00e9galement\u00a0“une nouvelle classe de dispositifs de\u00a0<\/em>stockage d’\u00e9nergie<\/em><\/a>\u00a0qui stockent la charge de mani\u00e8re \u00e9lectrostatique, contrairement aux batteries qui utilisent des r\u00e9actions chimiques”<\/em>, d\u00e9taillent les experts. Mais leurs capacit\u00e9s de stockage demeurent faibles. Les chercheurs ont donc voulu pallier ce probl\u00e8me.<\/p>\n

Quel est ce nouveau mat\u00e9riau plus efficace pour la conception des supercondensateurs ?<\/strong><\/h2>\n

Ils se sont int\u00e9ress\u00e9s au\u00a0graphite<\/a>\u00a0naturel, un min\u00e9ral non m\u00e9tallique, tr\u00e8s pr\u00e9sent en Australie. Celui-ci a un d\u00e9faut : les ions, \u00e0 savoir les particules pour stocker l\u2019\u00e9nergie, se d\u00e9placent mal \u00e0 l\u2019int\u00e9rieur. Aussi, les chercheurs ont d\u00e9velopp\u00e9 une nouvelle architecture de ce min\u00e9ral appel\u00e9e\u00a0“oxyde de graph\u00e8ne r\u00e9duit multiscale (M-rGO)”.<\/em><\/p>\n

\n

Dans un\u00a0communiqu\u00e9<\/a>, le dispositif est d\u00e9taill\u00e9.\u00a0“Gr\u00e2ce \u00e0 un proc\u00e9d\u00e9 de recuit thermique rapide, les chercheurs ont cr\u00e9\u00e9 une structure de graph\u00e8ne tr\u00e8s incurv\u00e9e, dot\u00e9e de voies pr\u00e9cises permettant aux ions de se d\u00e9placer rapidement et efficacement\u201d.\u00a0<\/em>C\u2019est cette \u00e9tape qui permet\u00a0“un mat\u00e9riau offrant \u00e0 la fois une densit\u00e9 d’\u00e9nergie et une densit\u00e9 de puissance \u00e9lev\u00e9es, une combinaison rarement atteinte dans un seul dispositif”.<\/em><\/p>\n

Quelles sont les capacit\u00e9s de ces supercondensateurs ?<\/strong><\/h2>\n

Mais quelles sont les capacit\u00e9s de ce nouveau dispositif de stockage d\u2019\u00e9nergie ? Selon le Dr Petar Jovanovi\u0107, chercheur au sein du p\u00f4le ARC AM2D et co-auteur de l’\u00e9tude, ces supercondensateurs peuvent pr\u00e9senter une densit\u00e9 \u00e9nerg\u00e9tique volumique (capacit\u00e9 de stockage d’\u00e9nergie) jusqu\u2019\u00e0 99,5 watt-heure par litre (Wh\/L) et une densit\u00e9 de puissance jusqu\u2019\u00e0 69,2 kilowatts par litre (kW\/L). De plus, elle pr\u00e9sente des\u00a0“capacit\u00e9s de charge rapide avec une excellente stabilit\u00e9 de cycle”.<\/em><\/p>\n

“Ces indicateurs de performance figurent parmi les meilleurs jamais enregistr\u00e9s pour les supercondensateurs \u00e0 base de carbone et, surtout, le proc\u00e9d\u00e9 est adaptable \u00e0 grande \u00e9chelle et compatible avec les mati\u00e8res premi\u00e8res australiennes”<\/em>, se f\u00e9licite le Dr Jovanovi\u0107 dans un communiqu\u00e9.<\/p>\n

Selon les chercheurs, ce produit pourrait acc\u00e9l\u00e9rer le d\u00e9veloppement des transports \u00e9lectrifi\u00e9s et des dispositifs de recharge rapide. Ce produit est d\u00e9sormais commercialis\u00e9 par Ionic Industries, une entreprise issue de l’universit\u00e9 Monash.<\/p>\n

La source:Stockage d’\u00e9nergie: des chercheurs cr\u00e9ent un mat\u00e9riau en graph\u00e8ne pour les supercondensateurs – Geo.fr<\/a><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

3 d\u00e9cembre 2025<\/p>\n","protected":false},"author":12,"featured_media":20462,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[795],"tags":[],"class_list":["post-20607","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualites-industrielles"],"yoast_head":"\nStockage d'\u00e9nergie: des chercheurs cr\u00e9ent un mat\u00e9riau en graph\u00e8ne pour les supercondensateurs - \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\/stockage-denergie-des-chercheurs-creent-un-materiau-en-graphene-pour-les-supercondensateurs\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Stockage d'\u00e9nergie: des chercheurs cr\u00e9ent un mat\u00e9riau en graph\u00e8ne pour les supercondensateurs - 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