{"id":43443,"date":"2022-05-27T14:04:55","date_gmt":"2022-05-27T14:04:55","guid":{"rendered":"https:\/\/www.takomabattery.com\/?p=43443"},"modified":"2023-11-29T09:36:36","modified_gmt":"2023-11-29T09:36:36","slug":"lidfp-additives-help-enable-4-8-v-ultra-high-voltage-lithium-batteries","status":"publish","type":"post","link":"https:\/\/www.takomabattery.com\/fr\/lidfp-additives-help-enable-4-8-v-ultra-high-voltage-lithium-batteries\/","title":{"rendered":"Les additifs LiDFP permettent de cr\u00e9er des piles au lithium \u00e0 tr\u00e8s haute tension de 4,8 V"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"43443\" class=\"elementor elementor-43443\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-1b37739 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"1b37739\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-508f2c3\" data-id=\"508f2c3\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-b946341 elementor-widget elementor-widget-woocommerce-breadcrumb\" data-id=\"b946341\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"woocommerce-breadcrumb.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<nav class=\"woocommerce-breadcrumb\" aria-label=\"Breadcrumb\" data-no-translation=\"\" data-trp-gettext=\"\">Accueil<\/nav>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d6e5873 elementor-widget elementor-widget-heading\" data-id=\"d6e5873\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Les additifs LiDFP permettent de cr\u00e9er des piles au lithium \u00e0 tr\u00e8s haute tension de 4,8 V<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-50cfe38 elementor-widget elementor-widget-text-editor\" data-id=\"50cfe38\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div style=\"line-height: 40px\">Dans leur qu\u00eate de batteries \u00e0 haute tension, les chercheurs ont d\u00e9couvert le potentiel du mat\u00e9riau en couches riche en Ni LiNixMnyCo1-x-yO2 (NMC) en raison de sa capacit\u00e9 th\u00e9orique \u00e9lev\u00e9e, de sa tension ultra-\u00e9lev\u00e9e et de ses avantages en termes de co\u00fbts.<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-15a2895 uael-aspect-ratio-16_9 uael-youtube-subscribe-no elementor-widget elementor-widget-uael-video\" data-id=\"15a2895\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"uael-video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"uael-video__outer-wrap  uael-video-type-youtube\" data-device=\"false\" data-vsticky=\"no\" data-hidedesktop=\"\" data-hidetablet=\"\" data-hidemobile=\"\" data-vsticky-viewport=\"0\" data-autoplay=\"0\">\n\t\t\t\t\t\t<div class=\"uael-video-inner-wrap\">\n\t\t\t\t<div class=\"uael-video__play\" data-src=\"https:\/\/www.youtube.com\/embed\/zV05m7yzME0?rel=0&amp;start&amp;end&amp;controls=1&amp;mute=0&amp;modestbranding=0&amp;autoplay=1\">\n\t\t\t\t\t<img decoding=\"async\" class=\"uael-video__thumb\" src=\"https:\/\/i.ytimg.com\/vi\/zV05m7yzME0\/hqdefault.jpg\" alt=\"\"><\/img>\n\t\t\t\t\t<div class=\"uael-video__play-icon uael-animation-\">\n\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/www.takomabattery.com\/wp-content\/uploads\/2023\/07\/YouTube_play_button_icon_2013\u20132017.svg-21.webp\" alt=\"bouton de lecture youtube\" \/>\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3b326e5 elementor-widget elementor-widget-text-editor\" data-id=\"3b326e5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div style=\"line-height: 40px\"><div style=\"border: 2px solid #ccc\"><ol style=\"line-height: 40px\"><li><a href=\"#Introduction_of_ultra-high_voltage\">Introduction de l'ultra-haute tension <\/a><\/li><li><a href=\"#Ultra-high_voltage_protective_additives\">Additifs de protection pour l'ultra-haute tension<\/a><\/li><li><a href=\"#Innovation\">L'innovation<\/a><\/li><li><a href=\"#Data_overview\">Aper\u00e7u des donn\u00e9es<\/a><\/li><li><a href=\"#Summary\">R\u00e9sum\u00e9<\/a><\/li><\/ol><\/div><h2 id=\"Introduction_of_ultra-high_voltage\">Introduction de l'ultra-haute tension<\/h2><p>En ce qui concerne la question de la <a href=\"https:\/\/www.takomabattery.com\/fr\/the-ultimate-energy-source-high-voltage-battery\/\" target=\"_blank\" rel=\"noopener\"><span style=\"text-decoration: underline\"><span style=\"color: #333399;text-decoration: underline\">quelle batterie a la tension la plus \u00e9lev\u00e9e<\/span><\/span><\/a>Nous avons d\u00e9couvert que parmi les nombreux candidats positifs pour les batteries, le mat\u00e9riau en couches riche en Ni LiNixMnyCo1-x-yO2 (NMC) pr\u00e9sente une capacit\u00e9 th\u00e9orique \u00e9lev\u00e9e (~280 mAh g-1), <strong>ultra-haute tension<\/strong> (~4 V par rapport \u00e0 Li+\/Li), et un co\u00fbt inf\u00e9rieur Les avantages.<\/p><p>Parmi eux, la dissolution du m\u00e9tal de transition (MT) entra\u00eene une perte de capacit\u00e9, et le MT dissous migre \u00e0 travers l'\u00e9lectrolyte et se d\u00e9pose finalement sur la surface de l'anode, ce qui modifie la composition et la structure de la surface de la cathode et d\u00e9truit l'interface \u00e9lectrolyte solide (SEI) sur l'anode.<\/p><p>Malgr\u00e9 le succ\u00e8s variable des diff\u00e9rentes approches telles que la protection de surface, le dopage en masse et l'ing\u00e9nierie microstructurale, il est toujours tr\u00e8s difficile d'obtenir un cycle stable des cathodes \u00e0 couches riches en Ni \u00e0 une tension ultra-\u00e9lev\u00e9e (&gt;4,5 V).<\/p><p>Les \u00e9lectrolytes commerciaux de carbonate d'\u00e9thyl\u00e8ne et de carbonate de m\u00e9thyle et d'\u00e9thyle (EC\/EMC) ne peuvent rester stables qu'\u00e0 environ 4,3 V dans les batteries pratiques, et \u00e0 une tension ultra-\u00e9lev\u00e9e sup\u00e9rieure \u00e0 4,3 V, les mol\u00e9cules d'oxyg\u00e8ne et les radicaux d'oxyg\u00e8ne peuvent se d\u00e9tacher du lithium, de la surface de l'\u00e9lectrode positive et r\u00e9agir avec l'\u00e9lectrolyte.<\/p><p>L'utilisation d'additifs sacrificiels est une approche efficace pour am\u00e9liorer les performances \u00e9lectrochimiques dans des conditions de fonctionnement \u00e0 ultra-haute tension, o\u00f9 une interface cathode-\u00e9lectrolyte (CEI) hautement protectrice peut supprimer la d\u00e9composition de l'\u00e9lectrolyte et minimiser la d\u00e9gradation de la cathode.<\/p><p>Toutefois, en cas de fonctionnement \u00e0 ultra-haute tension (&gt;4,6 V), il est difficile d'identifier des additifs capables de relever simultan\u00e9ment plusieurs d\u00e9fis.<\/p><h2 id=\"Ultra-high_voltage_protective_additives\">Additifs de protection pour l'ultra-haute tension<\/h2><p>Un difluorophosphate de lithium (LiDFP) utilis\u00e9 comme additif protecteur \u00e0 ultra-haute tension pour un \u00e9lectrolyte commercial courant, LiNixMnyCo1-x-yO2 (NMC), permet d'obtenir un cycle stable avec une tension ultra-haute de 4,8 V.<\/p><p>La batterie Li||LiNi0,76Mn0,14Co0,10O2 a une capacit\u00e9 initiale de 235 mAh g-1 et peut encore conserver 97% de la capacit\u00e9 initiale apr\u00e8s 200 cycles. Gr\u00e2ce \u00e0 une combinaison de calculs th\u00e9oriques et d'exp\u00e9riences, on constate que la stabilit\u00e9 du cycle est attribu\u00e9e \u00e0 l'interface stable sur la cathode.<\/p><p><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter size-full wp-image-43447\" src=\"https:\/\/www.takomabattery.com\/wp-content\/uploads\/2022\/05\/A-lithium-difluorophosphate-LiDFP-as-a-ultra-high-voltage-protective-additive.jpg\" alt=\"Un difluorophosphate de lithium (LiDFP) comme additif de protection \u00e0 ultra-haute tension\" width=\"1000\" height=\"750\" srcset=\"https:\/\/www.takomabattery.com\/wp-content\/uploads\/2022\/05\/A-lithium-difluorophosphate-LiDFP-as-a-ultra-high-voltage-protective-additive.jpg 1000w, https:\/\/www.takomabattery.com\/wp-content\/uploads\/2022\/05\/A-lithium-difluorophosphate-LiDFP-as-a-ultra-high-voltage-protective-additive-300x225.jpg 300w, https:\/\/www.takomabattery.com\/wp-content\/uploads\/2022\/05\/A-lithium-difluorophosphate-LiDFP-as-a-ultra-high-voltage-protective-additive-768x576.jpg 768w, https:\/\/www.takomabattery.com\/wp-content\/uploads\/2022\/05\/A-lithium-difluorophosphate-LiDFP-as-a-ultra-high-voltage-protective-additive-600x450.jpg 600w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/p><p>Il est form\u00e9 par la d\u00e9composition du LiDFP, et la catalyse du m\u00e9tal de transition (TM) favorise la d\u00e9composition, tandis que les produits de d\u00e9composition (Li3PO4 et LiF) forment une interface protectrice, qui inhibe \u00e9galement la dissolution du m\u00e9tal de transition et la reconfiguration de la surface de la cathode. En outre, il favorise la distribution uniforme du Li \u00e0 l'int\u00e9rieur de la cathode, ce qui att\u00e9nue efficacement la d\u00e9formation et la formation de fissures.<\/p><h2 id=\"Innovation\">L'innovation<\/h2><p>1. En utilisant le LiDFP comme additif de protection contre les ultra-hautes tensions pour l'\u00e9lectrolyte commercial commun NMC, un cycle stable avec une ultra-haute tension de 4,8 V a \u00e9t\u00e9 obtenu.<\/p><p>2 La batterie Li||LiNi0,76Mn0,14Co0,10O2 a une capacit\u00e9 initiale de 235 mAh g-1 et peut encore conserver 97% de la capacit\u00e9 initiale apr\u00e8s 200 cycles.<\/p><h2 id=\"Data_overview\">Aper\u00e7u des donn\u00e9es<\/h2><p><img decoding=\"async\" class=\"aligncenter size-full wp-image-43450\" src=\"https:\/\/www.takomabattery.com\/wp-content\/uploads\/2022\/05\/Electrochemical-performance-of-LiNMC76-batteries-using-different-electrolytes-at-ultrahigh-pressure.jpg\" alt=\"Performance \u00e9lectrochimique des batteries LiNMC76 utilisant diff\u00e9rents \u00e9lectrolytes \u00e0 ultra-haute pression\" width=\"1000\" height=\"850\" srcset=\"https:\/\/www.takomabattery.com\/wp-content\/uploads\/2022\/05\/Electrochemical-performance-of-LiNMC76-batteries-using-different-electrolytes-at-ultrahigh-pressure.jpg 1000w, https:\/\/www.takomabattery.com\/wp-content\/uploads\/2022\/05\/Electrochemical-performance-of-LiNMC76-batteries-using-different-electrolytes-at-ultrahigh-pressure-300x255.jpg 300w, https:\/\/www.takomabattery.com\/wp-content\/uploads\/2022\/05\/Electrochemical-performance-of-LiNMC76-batteries-using-different-electrolytes-at-ultrahigh-pressure-768x653.jpg 768w, https:\/\/www.takomabattery.com\/wp-content\/uploads\/2022\/05\/Electrochemical-performance-of-LiNMC76-batteries-using-different-electrolytes-at-ultrahigh-pressure-600x510.jpg 600w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/p><p style=\"text-align: center\">Performance \u00e9lectrochimique des batteries Li||NMC76 utilisant diff\u00e9rents \u00e9lectrolytes \u00e0 ultra-haute pression de tension<\/p><p>(a) Courbes de charge-d\u00e9charge pour des cycles s\u00e9lectionn\u00e9s dans la plage 2,8-4,8 V ultra-haute tension.<br \/>(b) R\u00e9sultats EIS de Li||NMC76 apr\u00e8s 200 cycles avec diff\u00e9rents \u00e9lectrolytes ;<br \/>(c) Circuit \u00e9quivalent mod\u00e9lis\u00e9 par EIS ;<br \/>(d) R\u00e9sultats de l'ajustement EIS de la batterie Li||NMC76 expos\u00e9e \u00e0 diff\u00e9rents \u00e9lectrolytes pendant 200 fois.<\/p><p><img decoding=\"async\" class=\"aligncenter size-full wp-image-43448\" src=\"https:\/\/www.takomabattery.com\/wp-content\/uploads\/2022\/05\/CEI-XPS-Characterization-and-LiDFP-Additive-Decomposition-Mechanism.jpg\" alt=\"Caract\u00e9risation CEI XPS et m\u00e9canisme de d\u00e9composition de l&#039;additif LiDFP\" width=\"1000\" height=\"750\" srcset=\"https:\/\/www.takomabattery.com\/wp-content\/uploads\/2022\/05\/CEI-XPS-Characterization-and-LiDFP-Additive-Decomposition-Mechanism.jpg 1000w, https:\/\/www.takomabattery.com\/wp-content\/uploads\/2022\/05\/CEI-XPS-Characterization-and-LiDFP-Additive-Decomposition-Mechanism-300x225.jpg 300w, https:\/\/www.takomabattery.com\/wp-content\/uploads\/2022\/05\/CEI-XPS-Characterization-and-LiDFP-Additive-Decomposition-Mechanism-768x576.jpg 768w, https:\/\/www.takomabattery.com\/wp-content\/uploads\/2022\/05\/CEI-XPS-Characterization-and-LiDFP-Additive-Decomposition-Mechanism-600x450.jpg 600w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/p><p style=\"text-align: center\">Caract\u00e9risation CEI XPS et m\u00e9canisme de d\u00e9composition de l'additif LiDFP<\/p><p>(a) Spectres XPS de l'\u00e9lectrode NMC76 avec l'\u00e9lectrolyte de base et l'\u00e9lectrolyte additif apr\u00e8s 200 cycles entre 2,8 V et 4,8 V ultra-haute tension ;<br \/>(b) Le m\u00e9canisme de d\u00e9composition propos\u00e9 pour l'\u00e9lectrolyte contenant du LiDFP.<\/p><p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-43453\" src=\"https:\/\/www.takomabattery.com\/wp-content\/uploads\/2022\/05\/HAADF-STEM-and-soft-XAS-signatures-of-cycled-NMC76-cathodes.jpg\" alt=\"Signatures HAADF-STEM et XAS douce des cathodes NMC76 cycl\u00e9es\" width=\"1000\" height=\"920\" srcset=\"https:\/\/www.takomabattery.com\/wp-content\/uploads\/2022\/05\/HAADF-STEM-and-soft-XAS-signatures-of-cycled-NMC76-cathodes.jpg 1000w, https:\/\/www.takomabattery.com\/wp-content\/uploads\/2022\/05\/HAADF-STEM-and-soft-XAS-signatures-of-cycled-NMC76-cathodes-300x276.jpg 300w, https:\/\/www.takomabattery.com\/wp-content\/uploads\/2022\/05\/HAADF-STEM-and-soft-XAS-signatures-of-cycled-NMC76-cathodes-768x707.jpg 768w, https:\/\/www.takomabattery.com\/wp-content\/uploads\/2022\/05\/HAADF-STEM-and-soft-XAS-signatures-of-cycled-NMC76-cathodes-600x552.jpg 600w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/p><p style=\"text-align: center\">Signatures HAADF-STEM et XAS douce des cathodes NMC76 cycl\u00e9es<\/p><p>(a) Images HAADF-STEM de particules NMC76 soumises \u00e0 un cycle entre 2,8 V et une tension ultra-\u00e9lev\u00e9e de 4,8 V avec diff\u00e9rents \u00e9lectrolytes ;<br \/>(b) Caract\u00e9risation de la surface de la cathode par le mode de rendement \u00e9lectronique total de la XAS douce : bord L3 de Mn, bord L3 de Co et bord L3 de Ni.<\/p><p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-43452\" src=\"https:\/\/www.takomabattery.com\/wp-content\/uploads\/2022\/05\/Electrode-scale-quantification-of-TM-deposited-on-Li-anode.jpg\" alt=\"Quantification \u00e0 l&#039;\u00e9chelle de l&#039;\u00e9lectrode du TM d\u00e9pos\u00e9 sur l&#039;anode de Li\" width=\"1000\" height=\"1500\" srcset=\"https:\/\/www.takomabattery.com\/wp-content\/uploads\/2022\/05\/Electrode-scale-quantification-of-TM-deposited-on-Li-anode.jpg 1000w, https:\/\/www.takomabattery.com\/wp-content\/uploads\/2022\/05\/Electrode-scale-quantification-of-TM-deposited-on-Li-anode-200x300.jpg 200w, https:\/\/www.takomabattery.com\/wp-content\/uploads\/2022\/05\/Electrode-scale-quantification-of-TM-deposited-on-Li-anode-683x1024.jpg 683w, https:\/\/www.takomabattery.com\/wp-content\/uploads\/2022\/05\/Electrode-scale-quantification-of-TM-deposited-on-Li-anode-768x1152.jpg 768w, https:\/\/www.takomabattery.com\/wp-content\/uploads\/2022\/05\/Electrode-scale-quantification-of-TM-deposited-on-Li-anode-600x900.jpg 600w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/p><p style=\"text-align: center\">Quantification \u00e0 l'\u00e9chelle de l'\u00e9lectrode du TM d\u00e9pos\u00e9 sur l'anode de Li<\/p><p>(a) Cartographie XRF de l'anode Li ;<br \/>(b) Masse moyenne de la MT d\u00e9pos\u00e9e par unit\u00e9 de surface pour les trois MT ;<br \/>(c) Changements de l'\u00e9tat d'oxydation de la MT \u00e0 diff\u00e9rentes positions en utilisant la ligne de base et l'\u00e9lectrolyte LiDFP 1%.<\/p><p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-43451\" src=\"https:\/\/www.takomabattery.com\/wp-content\/uploads\/2022\/05\/Electrode-level-characterization-of-chemical-mechanical-interactions-in-electrolytes-with-and-without-LiDFP-additives.jpg\" alt=\"Caract\u00e9risation au niveau de l&#039;\u00e9lectrode des interactions chimiques et m\u00e9caniques dans les \u00e9lectrolytes avec et sans additifs LiDFP\" width=\"1000\" height=\"780\" srcset=\"https:\/\/www.takomabattery.com\/wp-content\/uploads\/2022\/05\/Electrode-level-characterization-of-chemical-mechanical-interactions-in-electrolytes-with-and-without-LiDFP-additives.jpg 1000w, https:\/\/www.takomabattery.com\/wp-content\/uploads\/2022\/05\/Electrode-level-characterization-of-chemical-mechanical-interactions-in-electrolytes-with-and-without-LiDFP-additives-300x234.jpg 300w, https:\/\/www.takomabattery.com\/wp-content\/uploads\/2022\/05\/Electrode-level-characterization-of-chemical-mechanical-interactions-in-electrolytes-with-and-without-LiDFP-additives-768x599.jpg 768w, https:\/\/www.takomabattery.com\/wp-content\/uploads\/2022\/05\/Electrode-level-characterization-of-chemical-mechanical-interactions-in-electrolytes-with-and-without-LiDFP-additives-600x468.jpg 600w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/p><p style=\"text-align: center\">Caract\u00e9risation au niveau de l'\u00e9lectrode des interactions chimiques et m\u00e9caniques dans les \u00e9lectrolytes avec et sans additifs LiDFP<\/p><p>(a) Rendu 3D de l'\u00e9lectrode composite de la cellule avec l'\u00e9lectrolyte de base ;<br \/>(b) Extraire le volume et la sph\u00e9ricit\u00e9 des particules et les comparer ;<br \/>(c) Le comportement de polarisation anisotrope de toutes les particules est repr\u00e9sent\u00e9 en fonction des changements de SOC correspondants ;<br \/>(d) Les centro\u00efdes des contours pour diff\u00e9rents groupes de particules avec et sans additif LiDFP sont repr\u00e9sent\u00e9s.<\/p><p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-43455\" src=\"https:\/\/www.takomabattery.com\/wp-content\/uploads\/2022\/05\/X-ray-Diffraction-and-Tomography-Analysis-of-Cyclic-NMC76-Cathode.jpg\" alt=\"Analyse par diffraction des rayons X et tomographie de la cathode NMC76 cyclique\" width=\"1000\" height=\"919\" srcset=\"https:\/\/www.takomabattery.com\/wp-content\/uploads\/2022\/05\/X-ray-Diffraction-and-Tomography-Analysis-of-Cyclic-NMC76-Cathode.jpg 1000w, https:\/\/www.takomabattery.com\/wp-content\/uploads\/2022\/05\/X-ray-Diffraction-and-Tomography-Analysis-of-Cyclic-NMC76-Cathode-300x276.jpg 300w, https:\/\/www.takomabattery.com\/wp-content\/uploads\/2022\/05\/X-ray-Diffraction-and-Tomography-Analysis-of-Cyclic-NMC76-Cathode-768x706.jpg 768w, https:\/\/www.takomabattery.com\/wp-content\/uploads\/2022\/05\/X-ray-Diffraction-and-Tomography-Analysis-of-Cyclic-NMC76-Cathode-600x551.jpg 600w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/p><p style=\"text-align: center\">Analyse par diffraction des rayons X et tomographie de la cathode NMC76 cyclique<\/p><p>(a) Diagrammes de diffraction des rayons X du NMC76 vierge et du NMC76 apr\u00e8s 200 cycles entre 2,8 V et une tension ultra-\u00e9lev\u00e9e de 4,8 V en utilisant l'\u00e9lectrolyte de base et l'\u00e9lectrolyte de base plus l'additif 1% LiDFP ;<br \/>(b) Param\u00e8tres de r\u00e9seau du NMC76 calcul\u00e9s par ajustement de la diffraction des rayons X ;<br \/>(c) R\u00e9sultats de la tomographie \u00e0 rayons X des particules NMC76 apr\u00e8s 200 cycles entre 2,8 V et une tension ultra-\u00e9lev\u00e9e de 4,8 V en utilisant un \u00e9lectrolyte contenant des additifs et un \u00e9lectrolyte de base ;<br \/>(d) Fr\u00e9quences relatives des valeurs de porosit\u00e9 pour toutes les particules extraites dans les deux conditions ;<br \/>(e) Diagramme circulaire montrant le pourcentage de particules \u00e0 diff\u00e9rents niveaux de porosit\u00e9.<\/p><h2 id=\"Summary\">R\u00e9sum\u00e9<\/h2><p>Lors d'un cycle entre 2,8 V et 4,8 V ultra-haute tension, la cathode polycristalline NMC76 peut fournir une capacit\u00e9 initiale allant jusqu'\u00e0 235 mAh g-1 avec une r\u00e9tention de capacit\u00e9 de 97% apr\u00e8s 200 cycles si le LiDFP 1% est utilis\u00e9.<\/p><p>La d\u00e9composition du LiDFP catalys\u00e9e en surface sur les NMC riches en Ni favorise la formation d'un CEI protecteur compos\u00e9 de Li3PO4 et de LiF. Ainsi, le LiDFP a de multiples fonctions, notamment l'inhibition de la reconstruction de la surface, l'att\u00e9nuation de la dissolution de la MT et l'apport de composants chimiques pour former des interfaces conductrices.<\/p><p>La caract\u00e9risation isom\u00e9trique tomographique assist\u00e9e par apprentissage automatique au niveau de l'\u00e9lectrode a r\u00e9v\u00e9l\u00e9 que ces particules sph\u00e9riques et de petite taille sont tr\u00e8s sensibles aux additifs LiDFP. En raison du transport plus rapide des ions Li \u00e0 travers la meilleure interface form\u00e9e par le LiDFP, une distribution plus uniforme du Li \u00e0 l'int\u00e9rieur des particules en vrac est r\u00e9gul\u00e9e, ce qui r\u00e9duit la d\u00e9formation et la formation de fissures qui en d\u00e9coule.<\/p><p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-43449\" src=\"https:\/\/www.takomabattery.com\/wp-content\/uploads\/2022\/05\/Commercial-ethylene-carbonate-and-methyl-ethyl-carbonate-electrolytes-can-only-maintain-stability-at-about-4.3-V-in-practical-batteries.jpg\" alt=\"Les \u00e9lectrolytes commerciaux de carbonate d&#039;\u00e9thyl\u00e8ne et de carbonate de m\u00e9thyle et d&#039;\u00e9thyle ne peuvent maintenir leur stabilit\u00e9 qu&#039;\u00e0 environ 4,3 V dans les batteries pratiques\" width=\"1000\" height=\"750\" srcset=\"https:\/\/www.takomabattery.com\/wp-content\/uploads\/2022\/05\/Commercial-ethylene-carbonate-and-methyl-ethyl-carbonate-electrolytes-can-only-maintain-stability-at-about-4.3-V-in-practical-batteries.jpg 1000w, https:\/\/www.takomabattery.com\/wp-content\/uploads\/2022\/05\/Commercial-ethylene-carbonate-and-methyl-ethyl-carbonate-electrolytes-can-only-maintain-stability-at-about-4.3-V-in-practical-batteries-300x225.jpg 300w, https:\/\/www.takomabattery.com\/wp-content\/uploads\/2022\/05\/Commercial-ethylene-carbonate-and-methyl-ethyl-carbonate-electrolytes-can-only-maintain-stability-at-about-4.3-V-in-practical-batteries-768x576.jpg 768w, https:\/\/www.takomabattery.com\/wp-content\/uploads\/2022\/05\/Commercial-ethylene-carbonate-and-methyl-ethyl-carbonate-electrolytes-can-only-maintain-stability-at-about-4.3-V-in-practical-batteries-600x450.jpg 600w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/p><p>Les auteurs montrent \u00e9galement que le Ni subit la dissolution la plus s\u00e9v\u00e8re dans les trois TM, et le d\u00e9veloppement futur des NMC ou d'autres mat\u00e9riaux structur\u00e9s en couches peut se concentrer sur la stabilisation du Ni ainsi que sur l'homog\u00e9n\u00e9isation de la morphologie des particules gr\u00e2ce \u00e0 l'utilisation de nouveaux additifs.<\/p><p>Pour les mat\u00e9riaux cathodiques et anodiques mentionn\u00e9s dans l'article, des informations pertinentes peuvent \u00eatre trouv\u00e9es ici aupr\u00e8s de <span style=\"text-decoration: underline\"><span style=\"color: #333399;text-decoration: underline\"><a style=\"color: #333399;text-decoration: underline\" href=\"https:\/\/www.takomabattery.com\/fr\/top-10-anode-material-manufacturers-in-china-in-2021\/\" target=\"_blank\" rel=\"noopener\">Les 10 premiers fabricants de mat\u00e9riaux d'anode<\/a><\/span><\/span> en Chine et <a href=\"https:\/\/www.takomabattery.com\/fr\/top-10-lithium-ion-battery-electrolyte-company-in-china-in-2022\/\" target=\"_blank\" rel=\"noopener\"><span style=\"text-decoration: underline\"><span style=\"color: #333399;text-decoration: underline\">Top 10 des entreprises d'\u00e9lectrolytes pour batteries lithium-ion<\/span><\/span><\/a> en Chine.<\/p><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c86ee0e elementor-widget elementor-widget-heading\" data-id=\"c86ee0e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-heading-title elementor-size-large\">Postes connexes<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7e2c227 elementor-grid-3 elementor-grid-tablet-2 elementor-grid-mobile-1 elementor-posts--thumbnail-top elementor-widget elementor-widget-posts\" data-id=\"7e2c227\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;classic_columns&quot;:&quot;3&quot;,&quot;classic_columns_tablet&quot;:&quot;2&quot;,&quot;classic_columns_mobile&quot;:&quot;1&quot;,&quot;classic_row_gap&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:35,&quot;sizes&quot;:[]},&quot;classic_row_gap_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;classic_row_gap_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]}}\" data-widget_type=\"posts.classic\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-posts-container elementor-posts elementor-posts--skin-classic elementor-grid\" role=\"list\">\n\t\t\t\t<article class=\"elementor-post elementor-grid-item post-112083 post type-post status-publish format-standard has-post-thumbnail hentry category-battery-industry category-battery-storage category-lithium-ion-battery-knowledge tag-battery tag-battery-cell tag-lithium-battery\" role=\"listitem\">\n\t\t\t\t<a class=\"elementor-post__thumbnail__link\" href=\"https:\/\/www.takomabattery.com\/fr\/lipo-storage-voltage\/\" tabindex=\"-1\" >\n\t\t\t<div class=\"elementor-post__thumbnail\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" src=\"https:\/\/www.takomabattery.com\/wp-content\/uploads\/2023\/08\/LiPo-storage-voltage-using-tips-and-FAQs-300x225.webp\" class=\"attachment-medium size-medium wp-image-112084\" alt=\"LiPo-storage-voltage-using-tips-and-FAQs\" srcset=\"https:\/\/www.takomabattery.com\/wp-content\/uploads\/2023\/08\/LiPo-storage-voltage-using-tips-and-FAQs-300x225.webp 300w, https:\/\/www.takomabattery.com\/wp-content\/uploads\/2023\/08\/LiPo-storage-voltage-using-tips-and-FAQs-768x576.webp 768w, https:\/\/www.takomabattery.com\/wp-content\/uploads\/2023\/08\/LiPo-storage-voltage-using-tips-and-FAQs-600x450.webp 600w, https:\/\/www.takomabattery.com\/wp-content\/uploads\/2023\/08\/LiPo-storage-voltage-using-tips-and-FAQs.webp 1000w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/div>\n\t\t<\/a>\n\t\t\t\t<div class=\"elementor-post__text\">\n\t\t\t\t<div class=\"elementor-post__title\">\n\t\t\t<a href=\"https:\/\/www.takomabattery.com\/fr\/lipo-storage-voltage\/\" >\n\t\t\t\tTension de stockage des LiPo - conseils d'utilisation et FAQ\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-post__meta-data\">\n\t\t\t\t\t<span class=\"elementor-post-date\">\n\t\t\t29 ao\u00fbt 2023\t\t<\/span>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/article>\n\t\t\t\t<article class=\"elementor-post elementor-grid-item post-110487 post type-post status-publish format-standard has-post-thumbnail hentry category-battery-industry category-lithium-battery-technology category-lithium-ion-battery-knowledge tag-battery tag-battery-cell tag-lithium-battery\" role=\"listitem\">\n\t\t\t\t<a class=\"elementor-post__thumbnail__link\" href=\"https:\/\/www.takomabattery.com\/fr\/lithium-ion-battery-cycle-life\/\" tabindex=\"-1\" >\n\t\t\t<div class=\"elementor-post__thumbnail\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" src=\"https:\/\/www.takomabattery.com\/wp-content\/uploads\/2023\/08\/Lithium-ion-battery-cycle-life-factors-affecting-it-300x225.webp\" class=\"attachment-medium size-medium wp-image-110522\" alt=\"Facteurs influen\u00e7ant le cycle de vie des batteries lithium-ion\" srcset=\"https:\/\/www.takomabattery.com\/wp-content\/uploads\/2023\/08\/Lithium-ion-battery-cycle-life-factors-affecting-it-300x225.webp 300w, https:\/\/www.takomabattery.com\/wp-content\/uploads\/2023\/08\/Lithium-ion-battery-cycle-life-factors-affecting-it-768x576.webp 768w, https:\/\/www.takomabattery.com\/wp-content\/uploads\/2023\/08\/Lithium-ion-battery-cycle-life-factors-affecting-it-600x450.webp 600w, https:\/\/www.takomabattery.com\/wp-content\/uploads\/2023\/08\/Lithium-ion-battery-cycle-life-factors-affecting-it.webp 1000w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/div>\n\t\t<\/a>\n\t\t\t\t<div class=\"elementor-post__text\">\n\t\t\t\t<div class=\"elementor-post__title\">\n\t\t\t<a href=\"https:\/\/www.takomabattery.com\/fr\/lithium-ion-battery-cycle-life\/\" >\n\t\t\t\tDur\u00e9e de vie des piles au lithium-ion - facteurs influen\u00e7ant cette dur\u00e9e\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-post__meta-data\">\n\t\t\t\t\t<span class=\"elementor-post-date\">\n\t\t\t6 ao\u00fbt 2023\t\t<\/span>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/article>\n\t\t\t\t<article class=\"elementor-post elementor-grid-item post-107658 post type-post status-publish format-standard has-post-thumbnail hentry category-battery-industry category-battery-materials category-battery-storage tag-battery tag-battery-cell tag-lithium-battery\" role=\"listitem\">\n\t\t\t\t<a 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sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/div>\n\t\t<\/a>\n\t\t\t\t<div class=\"elementor-post__text\">\n\t\t\t\t<div class=\"elementor-post__title\">\n\t\t\t<a href=\"https:\/\/www.takomabattery.com\/fr\/lithium-battery-capacity-tester-overview-its-function-and-practice-tips\/\" >\n\t\t\t\tTesteur de capacit\u00e9 des piles au lithium - aper\u00e7u de sa fonction et conseils pratiques\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-post__meta-data\">\n\t\t\t\t\t<span class=\"elementor-post-date\">\n\t\t\t20 juin 2023\t\t<\/span>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/article>\n\t\t\t\t<\/div>\n\t\t\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Les additifs LiDFP permettent de cr\u00e9er des batteries au lithium \u00e0 ultra-haute tension de 4,8 V Dans leur qu\u00eate de batteries \u00e0 haute tension, les chercheurs ont d\u00e9couvert le potentiel du mat\u00e9riau en couches riche en Ni LiNixMnyCo1-x-yO2 (NMC) en raison de sa capacit\u00e9 th\u00e9orique \u00e9lev\u00e9e, de sa tension ultra-haute et de ses avantages en termes de co\u00fbts.https:\/\/www.youtube.com\/watch?v=zV05m7yzME0 Introduction de l'ultra-haute tension Additifs de protection pour l'ultra-haute tension Innovation Aper\u00e7u des donn\u00e9es R\u00e9sum\u00e9 Introduction de l'ultra-haute tension Les additifs de protection pour l'ultra-haute tension sont des additifs de protection pour l'ultra-haute tension qui sont utilis\u00e9s dans les batteries au lithium.<\/p>","protected":false},"author":1,"featured_media":43444,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"","_lmt_disable":"","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":"","ast-disable-related-posts":"","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":"default","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 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