{"id":187729,"date":"2026-06-12T10:11:59","date_gmt":"2026-06-12T08:11:59","guid":{"rendered":"https:\/\/newmobility.news\/?p=187729"},"modified":"2026-06-12T10:41:26","modified_gmt":"2026-06-12T08:41:26","slug":"dongfeng-solid-state-battery-is-coming-with-a-catch","status":"publish","type":"post","link":"https:\/\/newmobility.news\/fr\/2026\/06\/12\/dongfeng-solid-state-battery-is-coming-with-a-catch\/","title":{"rendered":"La batterie \u2018 \u00e0 l'\u00e9tat solide \u2019 de Dongfeng arrive\u2026 mais il y a un hic"},"content":{"rendered":"<p class=\"p2\">Selon CarNewsChina, Dongfeng lancera la production en s\u00e9rie de sa batterie de nouvelle g\u00e9n\u00e9ration au cours du second semestre de cette ann\u00e9e et commencera imm\u00e9diatement \u00e0 l'int\u00e9grer dans ses v\u00e9hicules.<\/p>\n<p class=\"p2\">Cela ferait d'elle la premi\u00e8re marque \u00e0 proposer des batteries \u00e0 \u00e9lectrolyte solide \u00e0 grande \u00e9chelle et pourrait ouvrir de nouvelles perspectives pour Peugeot, avec qui elle a renforc\u00e9 ses liens. Mais comme c'est souvent le cas avec les promesses concernant les batteries, cette nouvelle s'accompagne d'une mise en garde.<\/p>\n<h4>Plus de 1 000 km<\/h4>\n<p class=\"p2\">La cellule d\u00e9velopp\u00e9e par Dongfeng offre une densit\u00e9 \u00e9nerg\u00e9tique de 350 Wh\/kg, soit environ le double de celle des cellules au lithium fer phosphate (LFP) couramment utilis\u00e9es aujourd\u2019hui et un tiers de celle des cellules lithium-ion. La batterie devrait permettre une autonomie sup\u00e9rieure \u00e0 1 000 km tout en pesant 30% de moins qu'une batterie lithium-ion classique \u00e9quivalente.<\/p>\n<p class=\"p2\">Dongfeng qualifie officiellement ces batteries de \u2018 \u00e0 l'\u00e9tat solide \u2019, mais \u2013 une fois encore \u2013 le terme \u00ab semi-solide \u00bb est plus appropri\u00e9. La batterie utilise un \u00e9lectrolyte composite \u00e0 base d'oxyde et de polym\u00e8re.<\/p>\n<p class=\"p2\">Cela signifie que cette cellule n'est pas un dispositif purement \u00e0 l'\u00e9tat solide au sens o\u00f9 l'entendent les physiciens ou les ing\u00e9nieurs de Toyota ou de QuantumScape. Il s'agit de ce que l'industrie appelle une construction hybride, qui associe un mat\u00e9riau \u00e9lectrolytique solide \u00e0 des \u00e9l\u00e9ments liquides r\u00e9siduels.<\/p>\n<p class=\"p2\">Il ne s'agit pas d'un simple diff\u00e9rend terminologique. L'autorit\u00e9 chinoise de r\u00e9gulation du secteur a \u00e9labor\u00e9 des r\u00e8gles visant \u00e0 normaliser la terminologie, exigeant notamment que les batteries semi-solides soient d\u00e9sign\u00e9es sous le nom de \u2018 batteries solide-liquide \u2019 afin d'\u00e9viter toute confusion dans l'esprit du public avec les batteries enti\u00e8rement \u00e0 l'\u00e9tat solide.<\/p>\n<h4>Sur les traces de MG<\/h4>\n<p class=\"p2\">Cette distinction est importante, car les avantages en termes de s\u00e9curit\u00e9 et de densit\u00e9 \u00e9nerg\u00e9tique offerts par une chimie v\u00e9ritablement tout-solide sont nettement sup\u00e9rieurs \u00e0 ceux des composites oxyde\/polym\u00e8re actuellement disponibles.<\/p>\n<p class=\"p2\">Ces derni\u00e8res sont consid\u00e9r\u00e9es comme un tremplin vers les premi\u00e8res. \u00c0 cet \u00e9gard, Dongfeng suit les traces de MG, qui a d\u00e9j\u00e0 commercialis\u00e9 sa batterie semi-solide \u00ab Solid Core \u00bb et qui fera son entr\u00e9e sur le march\u00e9 europ\u00e9en d'ici la fin de l'ann\u00e9e.<\/p>\n<p class=\"p2\">Cela \u00e9tant dit, les performances v\u00e9rifiables de la batterie de Dongfeng restent impressionnantes. Lors d'essais r\u00e9alis\u00e9s par temps froid, \u00e0 des temp\u00e9ratures hivernales de -30 \u00b0C, la batterie a conserv\u00e9 plus de 741 TP3T de sa capacit\u00e9 de charge et a offert une autonomie totale de plus de 1 000 km.<\/p>\n<p class=\"p2\">Cette valeur de performance \u00e0 basse temp\u00e9rature repr\u00e9sente une am\u00e9lioration significative par rapport aux batteries lithium-ion classiques, qui conservent g\u00e9n\u00e9ralement environ 60 % de leur capacit\u00e9 \u00e0 la m\u00eame temp\u00e9rature.<\/p>\n<h4>La voie la plus viable vers la production de masse<\/h4>\n<p class=\"p2\">Les r\u00e9sultats des tests de s\u00e9curit\u00e9 sont tout aussi remarquables. La cellule a r\u00e9sist\u00e9 \u00e0 une compression r\u00e9duisant son \u00e9paisseur de moiti\u00e9 tout en restant op\u00e9rationnelle, et a pass\u00e9 avec succ\u00e8s un test thermique \u00e0 170 \u00b0C sans d\u00e9gager de fum\u00e9e ni provoquer d'incendie.<\/p>\n<p class=\"p2\">\u00c0 titre de comparaison, la norme de s\u00e9curit\u00e9 nationale chinoise est fix\u00e9e \u00e0 130 \u00b0C. La suppression de l'\u00e9lectrolyte liquide r\u00e9duit consid\u00e9rablement le risque d'incendie par rapport aux batteries classiques, m\u00eame si elle ne l'\u00e9limine pas compl\u00e8tement (comme c'est le cas avec les batteries \u00e0 \u00e9lectrolyte solide).<\/p>\n<p class=\"p2\">La batterie semi-solide est largement reconnue dans le secteur comme la voie la plus prometteuse pour une adoption rapide par le grand public, car elle est compatible \u00e0 la fois avec les \u00e9quipements de production existants et avec les cha\u00eenes d'approvisionnement en mat\u00e9riaux d\u00e9j\u00e0 en place. La batterie enti\u00e8rement solide, qui ne contient aucun composant liquide, reste quant \u00e0 elle un d\u00e9fi diff\u00e9rent et bien plus difficile \u00e0 relever.<\/p>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-187732\" src=\"https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/06\/Stellantis-X-Factorial-Solid-State-Development-Car_HERO_FINAL_Resized-scaled.png?resize=640%2C429&#038;ssl=1\" alt=\"\" width=\"640\" height=\"429\" srcset=\"https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/06\/Stellantis-X-Factorial-Solid-State-Development-Car_HERO_FINAL_Resized-scaled.png?w=2560&amp;ssl=1 2560w, https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/06\/Stellantis-X-Factorial-Solid-State-Development-Car_HERO_FINAL_Resized-scaled.png?w=1280&amp;ssl=1 1280w, https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/06\/Stellantis-X-Factorial-Solid-State-Development-Car_HERO_FINAL_Resized-scaled.png?w=1920&amp;ssl=1 1920w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/p>\n<h4>La Dodge Charger teste la technologie \u00e0 semi-conducteurs<\/h4>\n<p class=\"p2\">C'est ce qu'illustre Stellantis, le partenaire industriel de Dongfeng. Le groupe automobile a annonc\u00e9 cette semaine qu'il entamait les essais de prototypes de sa Dodge Charger, une voiture \u00e9lectrique haute performance \u00e9quip\u00e9e de cellules de batterie \u00e0 semi-conducteurs fournies par Factorial.<\/p>\n<p class=\"p2\">Il s'agit d'un pack \u00e0 semi-conducteurs authentique, capable de recharger une batterie 90% en seulement 18 minutes et offrant une densit\u00e9 \u00e9nerg\u00e9tique de 375 Wh\/kg. Les essais permettent de v\u00e9rifier en conditions r\u00e9elles les r\u00e9sultats obtenus en laboratoire. Les cellules sont int\u00e9gr\u00e9es dans une structure de pack de batterie existante afin d'acc\u00e9l\u00e9rer la mise \u00e0 l'\u00e9chelle des applications industrielles.<\/p>\n<p class=\"p2\">Cela dit, ce projet n'est pour l'instant qu'un premier pas, puisqu'aucun calendrier n'a \u00e9t\u00e9 communiqu\u00e9 concernant la validation et la production finale. Pas plus tard que la semaine derni\u00e8re, Lotus, qui s'int\u00e9resse de pr\u00e8s aux batteries \u00e0 l'\u00e9tat solide afin de rester fid\u00e8le \u00e0 sa philosophie \u2018 light is right \u2019, a d\u00e9clar\u00e9 que la production en s\u00e9rie n'\u00e9tait pas pr\u00e9vue avant une dizaine d'ann\u00e9es. Malgr\u00e9 la course \u00e0 la commercialisation men\u00e9e par la Chine, ce d\u00e9lai fait l'objet d'un large consensus.<\/p>","protected":false},"excerpt":{"rendered":"<p>According to CarNewsChina, Dongfeng will start mass-producing its next-generation battery in the second half of this year and immediately start integrating it into vehicles. That would make it the first brand to offer solid-state at scale and could open opportunities for Peugeot, with whom the brand has strengthened its ties. But as with many battery [&hellip;]<\/p>\n","protected":false},"author":715,"featured_media":187731,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"{title}\r\n\r\n{excerpt}\r\n\r\n{url}","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"_wpas_customize_per_network":false,"jetpack_post_was_ever_published":false},"categories":[77162,77160,77159,2043,16,77169,6,4],"tags":[],"class_list":["post-187729","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-batteries","category-china","category-critical-materials","category-energy","category-industry","category-market","category-technology","category-top-stories-today"],"acf":[],"featured_image_urls_v2":{"full":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/06\/main.jpg?fit=1600%2C490&ssl=1",1600,490,false],"thumbnail":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/06\/main.jpg?resize=150%2C150&ssl=1",150,150,true],"medium":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/06\/main.jpg?fit=300%2C92&ssl=1",300,92,true],"medium_large":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/06\/main.jpg?fit=640%2C196&ssl=1",640,196,true],"large":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/06\/main.jpg?fit=640%2C196&ssl=1",640,196,true],"1536x1536":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/06\/main.jpg?fit=1536%2C470&ssl=1",1536,470,true],"2048x2048":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/06\/main.jpg?fit=1600%2C490&ssl=1",1600,490,true],"trp-custom-language-flag":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/06\/main.jpg?fit=18%2C6&ssl=1",18,6,true],"related-thumb":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/06\/main.jpg?resize=640%2C480&ssl=1",640,480,true],"gform-image-choice-sm":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/06\/main.jpg?resize=300%2C300&ssl=1",300,300,true],"gform-image-choice-md":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/06\/main.jpg?resize=400%2C400&ssl=1",400,400,true],"gform-image-choice-lg":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/06\/main.jpg?resize=600%2C490&ssl=1",600,490,true],"mailchimp":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/06\/main.jpg?fit=560%2C172&ssl=1",560,172,true],"unipress-phone":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/06\/main.jpg?resize=640%2C100&ssl=1",640,100,true],"unipress-tablet":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/06\/main.jpg?resize=1536%2C240&ssl=1",1536,240,true],"unipress-tablet-portrait":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/06\/main.jpg?resize=1536%2C180&ssl=1",1536,180,true],"unipress-tablet-landscape":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/06\/main.jpg?resize=1600%2C180&ssl=1",1600,180,true],"unipress-smartphone":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/06\/main.jpg?resize=1080%2C168&ssl=1",1080,168,true],"unipress-wide-screen":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/06\/main.jpg?resize=1600%2C180&ssl=1",1600,180,true]},"post_excerpt_stackable_v2":"<p>According to CarNewsChina, Dongfeng will start mass-producing its next-generation battery in the second half of this year and immediately start integrating it into vehicles. That would make it the first brand to offer solid-state at scale and could open opportunities for Peugeot, with whom the brand has strengthened its ties. But as with many battery promises, the news comes with a caveat. Exceeding 1,000 km The cell from Dongfeng delivers an energy density of 350 Wh\/kg, roughly double that of today&#8217;s mainstream lithium iron phosphate (LFP) cells and one-third that of lithium-ion cells. The pack is expected to enable a&hellip;<\/p>\n","category_list_v2":"<a href=\"https:\/\/newmobility.news\/fr\/category\/batteries\/\" rel=\"category tag\">Batteries<\/a>, <a href=\"https:\/\/newmobility.news\/fr\/category\/china\/\" rel=\"category tag\">China<\/a>, <a href=\"https:\/\/newmobility.news\/fr\/category\/critical-materials\/\" rel=\"category tag\">Critical materials<\/a>, <a href=\"https:\/\/newmobility.news\/fr\/category\/energy\/\" rel=\"category tag\">Energy<\/a>, <a href=\"https:\/\/newmobility.news\/fr\/category\/industry\/\" rel=\"category tag\">Industry<\/a>, <a href=\"https:\/\/newmobility.news\/fr\/category\/market\/\" rel=\"category tag\">Market<\/a>, <a href=\"https:\/\/newmobility.news\/fr\/category\/technology\/\" rel=\"category tag\">Technology<\/a>, <a href=\"https:\/\/newmobility.news\/fr\/category\/top-stories-today\/\" rel=\"category tag\">Top Stories Today<\/a>","author_info_v2":{"name":"Piet Andries","url":"https:\/\/newmobility.news\/fr\/author\/piet-andriesgmail-com\/"},"comments_num_v2":"0 comments","yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Dongfeng &#039;solid-state&#039; battery is coming... with a catch - newmobility.news<\/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:\/\/newmobility.news\/fr\/2026\/06\/12\/dongfeng-solid-state-battery-is-coming-with-a-catch\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Dongfeng &#039;solid-state&#039; battery is coming... with a catch - newmobility.news\" \/>\n<meta property=\"og:description\" content=\"According to CarNewsChina, Dongfeng will start mass-producing its next-generation battery in the second half of this year and immediately start integrating it into vehicles. 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