{"id":4041,"date":"2025-03-26T16:11:23","date_gmt":"2025-03-26T08:11:23","guid":{"rendered":"https:\/\/www.powdergrindingmill.com\/?p=4041"},"modified":"2025-03-26T16:12:21","modified_gmt":"2025-03-26T08:12:21","slug":"do-you-know-the-core-parameters-of-graphite-as-an-anode-materials","status":"publish","type":"post","link":"https:\/\/www.powdergrindingmill.com\/fr\/do-you-know-the-core-parameters-of-graphite-as-an-anode-materials\/","title":{"rendered":"Connaissez-vous les param\u00e8tres cl\u00e9s du graphite en tant que mat\u00e9riau d'anode ?"},"content":{"rendered":"<p>Actuellement, de nombreux mat\u00e9riaux peuvent \u00eatre utilis\u00e9s pour<a href=\"https:\/\/en.wikipedia.org\/wiki\/Lithium-ion_battery\"> les anodes de batteries lithium-ion<\/a>. Cependant, seuls les mat\u00e9riaux de graphite ont atteint la production de masse et la commercialisation.<br>Les mat\u00e9riaux d'anode en graphite comprennent le graphite naturel et artificiel. Les indicateurs techniques cl\u00e9s incluent la taille des particules, la surface sp\u00e9cifique et la densit\u00e9.<br>D'autres facteurs incluent la capacit\u00e9, l'efficacit\u00e9, le cyclage, la performance en taux et l'expansion. Ces indicateurs sont interconnect\u00e9s, formant un syst\u00e8me \u00e9troitement li\u00e9.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"739\" height=\"630\" src=\"https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/03\/graphite.webp\" alt=\"graphite\" class=\"wp-image-4042\" srcset=\"https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/03\/graphite.webp 739w, https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/03\/graphite-300x256.webp 300w\" sizes=\"(max-width: 739px) 100vw, 739px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Distribution de la taille des particules<\/h2>\n\n\n\n<p>Actuellement, de nombreux mat\u00e9riaux peuvent \u00eatre utilis\u00e9s pour les anodes de batteries lithium-ion. Cependant, seuls <a href=\"https:\/\/www.powdergrindingmill.com\/fr\/dry-grinding\/fluidized-bed-opposed-air-jet-mill\/\">les mat\u00e9riaux de graphite<\/a> ont atteint la production de masse et la commercialisation. Les mat\u00e9riaux d'anode en graphite comprennent le graphite naturel et artificiel. Les indicateurs techniques cl\u00e9s incluent la taille des particules, la surface sp\u00e9cifique et la densit\u00e9. D'autres facteurs incluent la capacit\u00e9, l'efficacit\u00e9, le cyclage, la performance en taux et l'expansion. Ces indicateurs sont interconnect\u00e9s, formant un syst\u00e8me \u00e9troitement li\u00e9.<\/p>\n\n\n\n<p>La taille des particules des mat\u00e9riaux d'anode en graphite influence leur performance \u00e9lectrochimique. La taille des particules impacte directement la densit\u00e9 \u00e0 la pes\u00e9e et la surface sp\u00e9cifique. La densit\u00e9 \u00e0 la pes\u00e9e influence la densit\u00e9 d'\u00e9nergie volum\u00e9trique du mat\u00e9riau.<\/p>\n\n\n\n<p>Avec un remplissage de volume identique, une taille de particules plus grande et une distribution plus large r\u00e9duisent la viscosit\u00e9 de la boue. Une viscosit\u00e9 plus faible am\u00e9liore la teneur en solide et facilite le rev\u00eatement. Une distribution plus large des tailles de particules permet aux petites particules de remplir les espaces entre les grandes. Cela augmente la densit\u00e9 de compaction de l'\u00e9lectrode et am\u00e9liore la densit\u00e9 d'\u00e9nergie volum\u00e9trique. La largeur de la distribution des tailles de particules est jug\u00e9e par (D90-D10)\/D50. Une valeur plus \u00e9lev\u00e9e indique une distribution plus large ; une valeur plus faible indique une distribution plus \u00e9troite. Les particules plus petites am\u00e9liorent la performance en taux et la dur\u00e9e de vie en cycle, mais r\u00e9duisent l'efficacit\u00e9 initiale et la densit\u00e9 de compaction, et vice versa.<\/p>\n\n\n\n<p>La taille des particules des mat\u00e9riaux d'anode est principalement d\u00e9termin\u00e9e par la m\u00e9thode de pr\u00e9paration. La norme GB\/T 24533-2019 d\u00e9finit les grades de mat\u00e9riaux d'anode en graphite. Le tableau ci-dessous montre la plage de distribution de la taille des particules pour diff\u00e9rents mat\u00e9riaux d'anode en graphite.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"667\" height=\"371\" src=\"https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/03\/Standard-density-requirements-for-graphite-anode-materials.webp\" alt=\"Exigences de densit\u00e9 standard pour les mat\u00e9riaux d&#039;anode en graphite\" class=\"wp-image-4043\" srcset=\"https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/03\/Standard-density-requirements-for-graphite-anode-materials.webp 667w, https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/03\/Standard-density-requirements-for-graphite-anode-materials-300x167.webp 300w\" sizes=\"(max-width: 667px) 100vw, 667px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Surface sp\u00e9cifique<\/h2>\n\n\n\n<p>La surface sp\u00e9cifique est la surface totale par unit\u00e9 de masse du mat\u00e9riau. Les particules plus petites avec une surface plus \u00e9lev\u00e9e offrent plus de voies pour les ions lithium, am\u00e9liorant la performance en taux. Cependant, des surfaces de contact plus grandes avec l'\u00e9lectrolyte augmentent la formation de SEI, r\u00e9duisant l'efficacit\u00e9 du premier cycle. Les particules plus grosses ont une densit\u00e9 de compaction plus \u00e9lev\u00e9e. Pour les mat\u00e9riaux d'anode en graphite, une surface sp\u00e9cifique inf\u00e9rieure \u00e0 3 m\u00b2\/g est id\u00e9ale.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Densit\u00e9 \u00e0 la pes\u00e9e<\/h2>\n\n\n\n<p>La densit\u00e9 \u00e0 la pes\u00e9e est la masse par unit\u00e9 de volume de la poudre apr\u00e8s compactage par vibration. C'est un indicateur cl\u00e9 des mat\u00e9riaux actifs. \u00c9tant donn\u00e9 que le volume de la batterie lithium-ion est limit\u00e9, une densit\u00e9 \u00e0 la pes\u00e9e plus \u00e9lev\u00e9e signifie plus de mat\u00e9riau actif par unit\u00e9 de volume. Cela conduit \u00e0 une capacit\u00e9 volum\u00e9trique plus \u00e9lev\u00e9e.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Densit\u00e9 compact\u00e9e<\/h2>\n\n\n\n<p>La densit\u00e9 compact\u00e9e fait r\u00e9f\u00e9rence \u00e0 la densit\u00e9 de l'\u00e9lectrode apr\u00e8s pressage par rouleau, compos\u00e9e de mat\u00e9riaux actifs et de liants.<br>Densit\u00e9 compacte = densit\u00e9 surfacique \/ (\u00e9paisseur de l'\u00e9lectrode apr\u00e8s roulage \u2013 \u00e9paisseur du foil de cuivre).<br>La densit\u00e9 compacte est \u00e9troitement li\u00e9e \u00e0 la capacit\u00e9 sp\u00e9cifique, \u00e0 l'efficacit\u00e9, \u00e0 la r\u00e9sistance interne et \u00e0 la performance en cycle de la batterie. Plus la densit\u00e9 compacte est \u00e9lev\u00e9e, plus il y a de mat\u00e9riau actif par unit\u00e9 de volume, ce qui entra\u00eene une capacit\u00e9 plus \u00e9lev\u00e9e. Cependant, l'augmentation de la densit\u00e9 compacte r\u00e9duit la porosit\u00e9, ce qui entra\u00eene une absorption moindre de l'\u00e9lectrolyte, une mouillabilit\u00e9 inf\u00e9rieure et une r\u00e9sistance interne accrue. Cela rend l'insertion et l'extraction de lithium plus difficiles, ce qui peut entraver l'am\u00e9lioration de la capacit\u00e9.<br>Facteurs influen\u00e7ant la densit\u00e9 compacte : taille des particules, distribution et morphologie.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Densit\u00e9 r\u00e9elle<\/h2>\n\n\n\n<p>La densit\u00e9 r\u00e9elle fait r\u00e9f\u00e9rence au poids du mat\u00e9riau solide par unit\u00e9 de volume dans un \u00e9tat absolument dense (excluant les vides internes). \u00c9tant donn\u00e9 que la densit\u00e9 r\u00e9elle est mesur\u00e9e dans un \u00e9tat compact\u00e9, elle sera sup\u00e9rieure \u00e0 la densit\u00e9 apparente.<br>En g\u00e9n\u00e9ral, la densit\u00e9 r\u00e9elle &gt; densit\u00e9 de compactage &gt; densit\u00e9 apparente. Le diagramme suivant pr\u00e9sente les exigences de densit\u00e9 pour les mat\u00e9riaux d'anode en graphite dans les normes.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"662\" height=\"335\" src=\"https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/03\/Standard-density-requirements-for-graphite-anode-materials-1-2.webp\" alt=\"\" class=\"wp-image-4046\" style=\"object-fit:cover\" srcset=\"https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/03\/Standard-density-requirements-for-graphite-anode-materials-1-2.webp 662w, https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/03\/Standard-density-requirements-for-graphite-anode-materials-1-2-300x152.webp 300w\" sizes=\"(max-width: 662px) 100vw, 662px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Capacit\u00e9 sp\u00e9cifique de la premi\u00e8re charge et d\u00e9charge<\/h2>\n\n\n\n<p>Lors de la premi\u00e8re charge d'une batterie lithium-ion, la surface du mat\u00e9riau d'anode en graphite diminue progressivement en potentiel \u00e0 mesure que les ions lithium s'int\u00e8grent. Lorsque la tension descend \u00e0 environ 0,8 V, les mol\u00e9cules de solvant dans l'\u00e9lectrolyte sont r\u00e9duites sur la surface de l'anode. Cela produit une grande quantit\u00e9 de produits organiques ou inorganiques, qui se d\u00e9posent sur la surface de l'anode, formant un film de passivation dense, le film SEI.<br>La r\u00e9action s'arr\u00eate uniquement lorsque la surface de l'anode est enti\u00e8rement recouverte par le film SEI, emp\u00eachant les mol\u00e9cules de solvant de s'int\u00e9grer. La formation du film SEI consomme certains ions lithium, qui ne peuvent pas \u00eatre lib\u00e9r\u00e9s lors de la d\u00e9charge. Cela r\u00e9duit la capacit\u00e9 de d\u00e9charge initiale. Lors du deuxi\u00e8me cycle de charge-d\u00e9charge, le plateau de tension \u00e0 0,8 V dispara\u00eet. Le test de cycle en demi-cellule du mat\u00e9riau d'anode en graphite est illustr\u00e9 ci-dessous.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Efficacit\u00e9 coulombique initiale<\/h2>\n\n\n\n<p>Un indicateur important de la performance d'un mat\u00e9riau d'anode est son efficacit\u00e9 de charge-d\u00e9charge initiale, \u00e9galement appel\u00e9e premi\u00e8re efficacit\u00e9 Coulombique. Pendant la charge et la d\u00e9charge, certains ions lithium extraits de la cathode et int\u00e9gr\u00e9s dans l'anode ne peuvent pas revenir \u00e0 la cathode pour participer au cycle de charge-d\u00e9charge, ce qui entra\u00eene une premi\u00e8re efficacit\u00e9 Coulombique inf\u00e9rieure \u00e0 100%. <\/p>\n\n\n\n<p>Les raisons pour lesquelles ces ions lithium ne retournent pas \u00e0 la cathode sont : <\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li> Certaines int\u00e9grations irr\u00e9versibles de lithium.<\/li>\n\n\n\n<li> La formation d'un film SEI sur la surface de l'anode, qui est un facteur cl\u00e9 affectant l'efficacit\u00e9 Coulombique. <\/li>\n<\/ul>\n\n\n\n<p>\u00c9tant donn\u00e9 que le film SEI se forme principalement \u00e0 la surface du mat\u00e9riau \u00e9lectrode, la surface sp\u00e9cifique du mat\u00e9riau \u00e9lectrode influence directement la zone de formation du film SEI. Plus la surface sp\u00e9cifique est grande, plus la zone de contact avec l'\u00e9lectrolyte est importante, ce qui entra\u00eene une zone de formation du film SEI plus grande. Il est g\u00e9n\u00e9ralement admis que la formation d'un film SEI stable favorise le processus de charge-d\u00e9charge, tandis qu'un film SEI instable nuit \u00e0 la r\u00e9action.<br>Il consomme continuellement l'\u00e9lectrolyte, \u00e9paissit le film SEI et augmente la r\u00e9sistance interne.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"641\" height=\"584\" src=\"https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/03\/Half-cell-cycle-test-of-graphite-anode-materials.webp\" alt=\"Test de cycle en demi-cellule des mat\u00e9riaux d&#039;anode en graphite\" class=\"wp-image-4047\" srcset=\"https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/03\/Half-cell-cycle-test-of-graphite-anode-materials.webp 641w, https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/03\/Half-cell-cycle-test-of-graphite-anode-materials-300x273.webp 300w\" sizes=\"(max-width: 641px) 100vw, 641px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Performance en cycle<\/h2>\n\n\n\n<p>La performance en cycle de la batterie fait r\u00e9f\u00e9rence au nombre de cycles de charge-d\u00e9charge qu'une batterie peut subir jusqu'\u00e0 ce que sa capacit\u00e9 chute \u00e0 une valeur sp\u00e9cifi\u00e9e selon un protocole de charge-d\u00e9charge donn\u00e9. En ce qui concerne la performance en cycle, le film SEI entrave la diffusion des ions lithium. \u00c0 mesure que le nombre de cycles augmente, le film SEI se d\u00e9tache, se d\u00e9colle et se d\u00e9pose sur la surface de l'anode, provoquant une augmentation progressive de la r\u00e9sistance interne de l'anode, ce qui entra\u00eene une accumulation de chaleur et une perte de capacit\u00e9.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Performance en taux<\/h2>\n\n\n\n<p>La diffusion des ions lithium dans les mat\u00e9riaux d'anode en graphite est fortement directionnelle, ce qui signifie qu'elle ne peut s'ins\u00e9rer que perpendiculairement \u00e0 l'axe C du cristal de graphite. Le processus d'insertion est illustr\u00e9 dans le diagramme ci-dessous. Les mat\u00e9riaux d'anode \u00e0 petites particules et \u00e0 grande surface sp\u00e9cifique ont une meilleure performance en taux. De plus, la r\u00e9sistance de surface de l'\u00e9lectrode (due au film SEI) et la conductivit\u00e9 de l'\u00e9lectrode influencent \u00e9galement la performance en taux. Semblable \u00e0 la dur\u00e9e de vie en cycle et \u00e0 l'expansion, les anodes isotropes disposent de plus de canaux de transport pour les ions lithium, r\u00e9solvant le probl\u00e8me du nombre r\u00e9duit de points d'entr\u00e9e et des taux de diffusion plus lents dans les structures anisotropes, ce qui est b\u00e9n\u00e9fique pour la charge et la d\u00e9charge \u00e0 haute intensit\u00e9.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"533\" height=\"271\" src=\"https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/03\/Schematic-diagram-of-the-process-of-Li-transfer-at-the-graphite-electrolyte-interface-and-embedding-into-graphite-interlayers.webp\" alt=\"Sch\u00e9ma du processus de transfert de Li+ \u00e0 l&#039;interface graphite-\u00e9lectrolyte et d&#039;int\u00e9gration dans les couches interm\u00e9diaires de graphite\" class=\"wp-image-4048\" srcset=\"https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/03\/Schematic-diagram-of-the-process-of-Li-transfer-at-the-graphite-electrolyte-interface-and-embedding-into-graphite-interlayers.webp 533w, https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/03\/Schematic-diagram-of-the-process-of-Li-transfer-at-the-graphite-electrolyte-interface-and-embedding-into-graphite-interlayers-300x153.webp 300w\" sizes=\"(max-width: 533px) 100vw, 533px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Performance d'expansion<\/h2>\n\n\n\n<p>L'expansion et la dur\u00e9e de vie en cycle sont positivement corr\u00e9l\u00e9es. Apr\u00e8s l'expansion de l'anode :<br>Elle provoque une d\u00e9formation du noyau, entra\u00eenant des microfissures dans les particules d'anode. Le film SEI se brise et se r\u00e9organise, consommant l'\u00e9lectrolyte et d\u00e9gradant la performance en cycle.<br>Cela exerce une pression sur le s\u00e9parateur, en particulier au niveau des ar\u00eates vives des languettes d'\u00e9lectrode, ce qui peut entra\u00eener des micro-courts-circuits ou une micro-pr\u00e9cipitation de lithium m\u00e9tal au fur et \u00e0 mesure des cycles de charge et de d\u00e9charge.<\/p>\n\n\n\n<p>En ce qui concerne l'expansion elle-m\u00eame, lors de la lithiation du graphite, les ions lithium s'ins\u00e8rent dans l'espacement intercouche du graphite, ce qui provoque l'expansion de la couche interm\u00e9diaire et l'augmentation du volume. Cette expansion est partiellement irr\u00e9versible. Le degr\u00e9 d'expansion est li\u00e9 \u00e0 l'orientation de l'anode, qui peut \u00eatre calcul\u00e9e \u00e0 l'aide des donn\u00e9es XRD par la formule\u00a0: Orientation = I004\/I110. Les mat\u00e9riaux en graphite anisotropes ont tendance \u00e0 subir une expansion du r\u00e9seau dans la m\u00eame direction (la direction de l'axe C du cristal de graphite) lors de la lithiation, ce qui entra\u00eene une expansion volumique importante de la batterie.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p>En utilisant une mouture superfine, la taille des particules du mat\u00e9riau d'anode est contr\u00f4l\u00e9e. Cela optimise la surface sp\u00e9cifique et la structure des pores. Il am\u00e9liore la densit\u00e9 de tassement\/compactage, fournissant des solutions de mat\u00e9riaux de base pour les batteries au lithium \u00e0 haute densit\u00e9 \u00e9nerg\u00e9tique. Ces mat\u00e9riaux offrent une conductivit\u00e9 \u00e9lev\u00e9e et une stabilit\u00e9 structurelle.<\/p>\n\n\n\n<p><a href=\"https:\/\/www.powdergrindingmill.com\/fr\/\">Poudre \u00e9pique<\/a>, plus de 20\u00a0ans d'exp\u00e9rience professionnelle dans le secteur <a href=\"https:\/\/www.powdergrindingmill.com\/fr\/dry-grinding\/ball-mill-and-air-classifier-production-system\/\">technologie et \u00e9quipement de broyage de poudre ultrafine<\/a> industriel. Promouvoir activement le d\u00e9veloppement futur de la poudre ultra-fine, en se concentrant sur le processus de broyage, de rectification, de classification et de modification de la poudre ultra-fine. Il existe diff\u00e9rents types de broyeurs, tels que le broyeur \u00e0 jet d'air, le broyeur \u00e0 classificateur d'air, le broyeur \u00e0 broches et le broyeur \u00e0 boulets, etc. Contactez-nous pour une consultation gratuite et des solutions personnalis\u00e9es\u00a0! Notre \u00e9quipe d'experts se consacre \u00e0 fournir des produits et des services de haute qualit\u00e9 afin de maximiser la valeur de votre traitement de poudre. Epic Powder\u00a0: votre expert de confiance en mati\u00e8re de traitement de poudre\u00a0!<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"860\" height=\"484\" src=\"https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/03\/EPIC-POWDER-1.webp\" alt=\"POUDRE \u00c9PIQUE\" class=\"wp-image-4007\" srcset=\"https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/03\/EPIC-POWDER-1.webp 860w, https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/03\/EPIC-POWDER-1-300x169.webp 300w, https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/03\/EPIC-POWDER-1-768x432.webp 768w\" sizes=\"(max-width: 860px) 100vw, 860px\" \/><figcaption class=\"wp-element-caption\">POUDRE \u00c9PIQUE<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">d\u00e9tails de contact epic<\/h2>\n\n\n\n<div class=\"wp-block-contact-form-7-contact-form-selector\">\n<div class=\"wpcf7 no-js\" id=\"wpcf7-f8-o1\" 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s\u00e9lectionnant le<span> avion<\/span>\u3002<\/span><label><input aria-label=\"1\" type=\"radio\" name=\"kc_captcha\" value=\"bot\" \/><svg aria-hidden=\"true\" role=\"img\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 576 512\"><path fill=\"currentColor\" d=\"M415 24c-53 0-103 42-127 65-24-23-74-65-127-65C70 24 16 77 16 166c0 72 67 133 69 135l187 181c9 8 23 8 32 0l187-180c2-3 69-64 69-136 0-89-54-142-145-142z\"\/><\/svg><\/label><label><input aria-label=\"2\" type=\"radio\" name=\"kc_captcha\" value=\"bot\" \/><svg aria-hidden=\"true\" role=\"img\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 576 512\"><path fill=\"currentColor\" d=\"M488 313v143c0 13-11 24-24 24H348c-7 0-12-5-12-12V356c0-7-5-12-12-12h-72c-7 0-12 5-12 12v112c0 7-5 12-12 12H112c-13 0-24-11-24-24V313c0-4 2-7 4-10l188-154c5-4 11-4 16 0l188 154c2 3 4 6 4 10zm84-61l-84-69V44c0-6-5-12-12-12h-56c-7 0-12 6-12 12v73l-89-74a48 48 0 00-61 0L4 252c-5 4-5 12-1 17l25 31c5 5 12 5 17 1l235-193c5-4 11-4 16 0l235 193c5 5 13 4 17-1l25-31c4-6 4-13-1-17z\"\/><\/svg><\/label><label><input aria-label=\"3\" type=\"radio\" name=\"kc_captcha\" value=\"kc_human\" \/><svg aria-hidden=\"true\" role=\"img\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 576 512\"><path fill=\"currentColor\" d=\"M472 200H360L256 6a12 12 0 00-10-6h-58c-8 0-14 7-12 15l34 185H100l-35-58a12 12 0 00-10-6H12c-8 0-13 7-12 14l21 106L0 362c-1 7 4 14 12 14h43c4 0 8-2 10-6l35-58h110l-34 185c-2 8 4 15 12 15h58a12 12 0 0010-6l104-194h112c57 0 104-25 104-56s-47-56-104-56z\"\/><\/svg><\/label>\r\n    <\/span>\r\n    <span style=\"display:none\">\r\n        <input type=\"text\" name=\"kc_honeypot\">\r\n    <\/span><\/span><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div class=\"batton\">\n\t\t<p><input class=\"wpcf7-form-control wpcf7-submit has-spinner\" type=\"submit\" value=\"Soumettre\" \/>\n\t\t<\/p>\n\t<\/div>\n<\/div>\n<style>\n.yanzheng{color:#fff}\n.wpcf7-response-output{color:#fff}\n.keen-form div{margin-bottom:0px;}\n.keen-form div p{margin-bottom:0px !important;}\n.one-half,.one-third {\n position: relative;\n margin-right: 4%;\n float: left;\n z-index: 99;\n}\n.one-half { width: 48%; }\n.one-third { width: 30.66%; }\n.last {\n margin-right: 0 !important;\n clear: right;\n}\n.batton { margin-top:2%\n}\n@media only screen and (max-width: 767px) {\n .one-half, .one-third {\n width: 100%;\n margin-right: 0;\n }\n}\n<\/style><div class=\"wpcf7-response-output\" aria-hidden=\"true\"><\/div>\n<input type=\"hidden\" name=\"trp-form-language\" value=\"fr\"\/><\/form>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Actuellement, de nombreux mat\u00e9riaux peuvent \u00eatre utilis\u00e9s pour les anodes de batteries au lithium-ion. Cependant, seuls les mat\u00e9riaux de graphite ont atteint la production de masse et la commercialisation. Les mat\u00e9riaux d'anode en graphite comprennent le naturel et<\/p>","protected":false},"author":1,"featured_media":4042,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-4041","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.2 (Yoast SEO v26.2) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Do you know the core parameters of graphite as an anode materials ?<\/title>\n<meta name=\"description\" content=\"Graphite anode materials include natural and artificial graphite. 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