{"id":2461,"date":"2024-12-26T14:19:37","date_gmt":"2024-12-26T14:19:37","guid":{"rendered":"https:\/\/yibaienergy-china.com\/?p=2461"},"modified":"2025-05-21T01:08:47","modified_gmt":"2025-05-20T17:08:47","slug":"pourquoi-les-batteries-lithium-de-puissance-ont-elles-besoin-dun-systeme-de-gestion-de-la-batterie","status":"publish","type":"post","link":"https:\/\/yibaienergy-china.com\/fr\/pourquoi-les-batteries-lithium-de-puissance-ont-elles-besoin-dun-systeme-de-gestion-de-la-batterie\/","title":{"rendered":"Pourquoi les batteries lithium de puissance ont-elles besoin d'un syst\u00e8me de gestion de la batterie ?"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"2461\" class=\"elementor elementor-2461\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-99cc0e1 e-flex e-con-boxed e-con e-parent\" data-id=\"99cc0e1\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-73b9468 elementor-widget elementor-widget-text-editor\" data-id=\"73b9468\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Pourquoi les batteries lithium-\u00e9lectricit\u00e9 ont-elles besoin d'un syst\u00e8me de gestion de la batterie ? Actuellement, les voitures \u00e0 \u00e9nergie nouvelle sont class\u00e9es en trois cat\u00e9gories : les v\u00e9hicules \u00e9lectriques hybrides (HEV), les v\u00e9hicules \u00e9lectriques \u00e0 pile \u00e0 combustible (FCEV) et les v\u00e9hicules \u00e9lectriques purs (EV). Ces trois types de voitures \u00e9lectriques pr\u00e9sentent des caract\u00e9ristiques distinctes et se trouvent \u00e0 des stades de d\u00e9veloppement diff\u00e9rents en raison de la diversit\u00e9 de leurs constructions et de leurs principes de fonctionnement.<\/p><p>Les voitures \u00e9lectriques pures reposent uniquement sur des batteries embarqu\u00e9es (telles que les batteries lithium-ion, les batteries plomb-acide, les batteries nickel-m\u00e9tal-hydrure et les batteries nickel-cadmium, entre autres) et sont propuls\u00e9es par des moteurs de grande puissance. Elles diff\u00e8rent donc des automobiles conventionnelles \u00e0 moteur \u00e0 combustion interne.<\/p><p>La distinction la plus notable est le syst\u00e8me de propulsion et de contr\u00f4le \u00e9lectrique que l'on ne trouve que dans les voitures enti\u00e8rement \u00e9lectriques. Les voitures purement \u00e9lectriques sont moins bruyantes, ne polluent pas, n'\u00e9mettent pas d'\u00e9missions et ont un ch\u00e2ssis plus simple que les v\u00e9hicules \u00e9lectriques hybrides ; par rapport aux v\u00e9hicules \u00e0 pile \u00e0 combustible, tous les domaines technologiques sont plus m\u00fbrs, avec une fiabilit\u00e9 et une s\u00e9curit\u00e9 sup\u00e9rieures. Par cons\u00e9quent, les gouvernements et les constructeurs automobiles du monde entier accordent une grande importance aux voitures \u00e9lectriques pures, et plusieurs entreprises ont achev\u00e9 la production par lots et entam\u00e9 des op\u00e9rations de d\u00e9monstration dans certains endroits.<\/p><p>Dans les voitures purement \u00e9lectriques, <a href=\"https:\/\/yibaienergy-china.com\/industries\/aviation\/\" target=\"_blank\" rel=\"noopener\"><b>le bloc-batterie au lithium de puissance<\/b><\/a>La batterie au lithium, l'un des composants essentiels, repr\u00e9sente une part importante du co\u00fbt total de fabrication, et ses performances ont un impact direct sur les performances de conduite et la s\u00e9curit\u00e9 du v\u00e9hicule. La majorit\u00e9 des batteries au lithium utilis\u00e9es dans les premi\u00e8res voitures purement \u00e9lectriques \u00e9taient des batteries plomb-acide.<\/p><p>En raison de leur faible densit\u00e9 \u00e9nerg\u00e9tique, de leur autonomie limit\u00e9e et de leur courte dur\u00e9e de vie, ces batteries ont \u00e9t\u00e9 progressivement remplac\u00e9es par des technologies telles que les batteries lithium-ion, qui apportent des am\u00e9liorations significatives. Les batteries lithium-ion ont suscit\u00e9 l'int\u00e9r\u00eat et l'utilisation de nombreux constructeurs de voitures \u00e9lectriques, tant au niveau national qu'international, en raison de leurs avantages tels que l'efficacit\u00e9 \u00e9lev\u00e9e de la charge et de la d\u00e9charge, la haute densit\u00e9 \u00e9nerg\u00e9tique et la longue dur\u00e9e de vie.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-da892fd elementor-widget elementor-widget-image\" data-id=\"da892fd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/yibaienergy-china.com\/wp-content\/uploads\/2025\/04\/12.8V-150AH.png\" class=\"attachment-full size-full wp-image-3316\" alt=\"Connecter les batteries 12V en parall\u00e8le\" srcset=\"https:\/\/yibaienergy-china.com\/wp-content\/uploads\/2025\/04\/12.8V-150AH.png 800w, https:\/\/yibaienergy-china.com\/wp-content\/uploads\/2025\/04\/12.8V-150AH-300x300.png 300w, https:\/\/yibaienergy-china.com\/wp-content\/uploads\/2025\/04\/12.8V-150AH-150x150.png 150w, https:\/\/yibaienergy-china.com\/wp-content\/uploads\/2025\/04\/12.8V-150AH-768x768.png 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5b66c18 elementor-widget elementor-widget-text-editor\" data-id=\"5b66c18\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Bien que les batteries lithium-ion offrent plus d'avantages que les types de batteries pr\u00e9c\u00e9dents, elles sont n\u00e9anmoins limit\u00e9es par les mat\u00e9riaux des cellules et les proc\u00e9dures de production actuelles, ce qui entra\u00eene des variations de r\u00e9sistance interne, de capacit\u00e9 et de tension entre les batteries lithium-ion \u00e0 cellule unique. Par cons\u00e9quent, en fonctionnement r\u00e9el, les cellules individuelles \u00e0 l'int\u00e9rieur du bloc-batterie sont sujettes \u00e0 une dissipation thermique in\u00e9gale ou \u00e0 des charges et d\u00e9charges excessives. Au fil du temps, ces batteries soumises \u00e0 de mauvaises conditions de fonctionnement sont susceptibles d'\u00eatre d\u00e9truites, ce qui r\u00e9duit la dur\u00e9e de vie totale du bloc-batterie.<\/p>\n<p>De plus, la batterie est fortement surcharg\u00e9e et il y a un risque d'explosion, ce qui d\u00e9truirait la batterie et mettrait la vie de l'utilisateur en danger. Il est donc n\u00e9cessaire d'\u00e9quiper la batterie au lithium du v\u00e9hicule \u00e9lectrique d'un ensemble de syst\u00e8mes de gestion de la batterie cibl\u00e9s (syst\u00e8me de gestion de la batterie, BMS), afin de surveiller, de prot\u00e9ger et d'\u00e9quilibrer efficacement l'\u00e9nergie, et d'alerter en cas de d\u00e9faillance de la batterie, am\u00e9liorant ainsi l'ensemble de la batterie au lithium. Les performances et la dur\u00e9e de vie du bloc-batterie.<\/p>\n<p>En tant que centre de surveillance et de gestion des batteries au lithium des v\u00e9hicules purement \u00e9lectriques, l'unit\u00e9 de gestion des batteries au lithium est un \u00e9l\u00e9ment essentiel du syst\u00e8me de gestion des batteries au lithium. <a href=\"https:\/\/yibaienergy-china.com\/why-bms-is-so-important-in-lifepo4-batteries\/\" target=\"_blank\" rel=\"noopener\"><b>syst\u00e8me de gestion de la batterie<\/b><\/a> doit surveiller la temp\u00e9rature, la tension, le courant de charge et de d\u00e9charge et d'autres param\u00e8tres connexes en temps r\u00e9el et de mani\u00e8re dynamique, et prendre l'initiative de prendre des mesures d'urgence pour prot\u00e9ger chaque batterie si n\u00e9cessaire. Soyez conscient des risques de surcharge, de d\u00e9charge excessive, de surchauffe et de court-circuit du bloc-batterie.<\/p>\n<p>En outre, le syst\u00e8me doit estimer avec pr\u00e9cision l'\u00e9tat de charge de la batterie tout au long de son cycle de vie et transmettre au conducteur, de mani\u00e8re appropri\u00e9e et simultan\u00e9e, des informations cl\u00e9s telles que la puissance restante, l'autonomie et les d\u00e9fauts anormaux. Une m\u00e9thode acceptable pour compl\u00e9ter la fonction d'\u00e9change de donn\u00e9es entre le syst\u00e8me et l'ECU de la voiture ou l'ordinateur h\u00f4te.<\/p>\n<p>Toutefois, ce sont l\u00e0 des fonctions et des performances que le BMS ne peut assurer que dans des conditions optimales de conception et de fonctionnement. \u00c0 l'heure actuelle, tous les incidents impliquant des v\u00e9hicules \u00e9lectriques dot\u00e9s de batteries au lithium ou l'utilisation de dispositifs de gestion de la batterie dans les automobiles sont consid\u00e9r\u00e9s comme un tout. Les performances d\u00e9montrent que les fonctions du syst\u00e8me de gestion de la batterie largement utilis\u00e9 ne sont pas id\u00e9ales, que la technologie n'est pas suffisamment m\u00fbre, que le champ d'application est restreint et que la vari\u00e9t\u00e9 est insuffisante. Les d\u00e9tails peuvent \u00eatre r\u00e9sum\u00e9s dans les cinq aspects suivants :<\/p>\n<ul>\n<li>L'utilisation \u00e0 long terme de la batterie au lithium de puissance peut entra\u00eener une collecte de donn\u00e9es inexactes par le syst\u00e8me de gestion de la batterie.<\/li>\n<li>Le syst\u00e8me de gestion de la batterie ne peut pas estimer avec pr\u00e9cision la valeur SOC d'une batterie lithium de puissance pendant tout son cycle de vie.<\/li>\n<li>L'\u00e9quilibre \u00e9nerg\u00e9tique entre les diff\u00e9rentes cellules de la batterie doit encore \u00eatre am\u00e9lior\u00e9.<\/li>\n<li>Les fonctions d'autodiagnostic et de maintenance du syst\u00e8me de gestion de la batterie ne sont pas id\u00e9ales.<\/li>\n<li>Les syst\u00e8mes de gestion de batterie actuels ont un champ d'application restreint et manquent de mobilit\u00e9 et d'adaptabilit\u00e9.<\/li>\n<\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c6c79d6 elementor-share-buttons--shape-circle elementor-share-buttons--view-icon-text elementor-share-buttons--skin-gradient elementor-grid-0 elementor-share-buttons--color-official elementor-widget elementor-widget-share-buttons\" data-id=\"c6c79d6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"share-buttons.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-grid\" role=\"list\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-grid-item\" role=\"listitem\">\n\t\t\t\t\t\t<div class=\"elementor-share-btn elementor-share-btn_facebook\" role=\"button\" tabindex=\"0\" aria-label=\"Share on facebook\" data-no-translation-aria-label=\"\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-share-btn__icon\">\n\t\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fab-facebook\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M504 256C504 119 393 8 256 8S8 119 8 256c0 123.78 90.69 226.38 209.25 245V327.69h-63V256h63v-54.64c0-62.15 37-96.48 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19.818 1.624 9.421 0 18.843-1.3 27.614-3.573-48.081-9.747-84.143-51.98-84.143-102.985v-1.299c13.969 7.797 30.214 12.67 47.431 13.319-28.264-18.843-46.781-51.005-46.781-87.391 0-19.492 5.197-37.36 14.294-52.954 51.655 63.675 129.3 105.258 216.365 109.807-1.624-7.797-2.599-15.918-2.599-24.04 0-57.828 46.782-104.934 104.934-104.934 30.213 0 57.502 12.67 76.67 33.137 23.715-4.548 46.456-13.32 66.599-25.34-7.798 24.366-24.366 44.833-46.132 57.827 21.117-2.273 41.584-8.122 60.426-16.243-14.292 20.791-32.161 39.308-52.628 54.253z\"><\/path><\/svg>\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-grid-item\" role=\"listitem\">\n\t\t\t\t\t\t<div class=\"elementor-share-btn elementor-share-btn_linkedin\" role=\"button\" tabindex=\"0\" aria-label=\"Share on linkedin\" data-no-translation-aria-label=\"\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-share-btn__icon\">\n\t\t\t\t\t\t\t\t<svg 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vehicles (FCEV), and pure electric vehicles (EV). These three kinds of electric cars have distinct features and are in various phases of development owing to their diverse constructions and operating [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3063,"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":"disabled","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":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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