{"id":187539,"date":"2026-06-09T17:16:53","date_gmt":"2026-06-09T15:16:53","guid":{"rendered":"https:\/\/newmobility.news\/?p=187539"},"modified":"2026-06-12T12:19:27","modified_gmt":"2026-06-12T10:19:27","slug":"finnish-fraud-miracle-solid-state-battery-turns-out-to-be-false","status":"publish","type":"post","link":"https:\/\/newmobility.news\/fr\/2026\/06\/09\/finnish-fraud-miracle-solid-state-battery-turns-out-to-be-false\/","title":{"rendered":"Une arnaque finlandaise : la batterie \u00e0 semi-conducteurs \u00ab miracle \u00bb s'av\u00e8re \u00eatre un canular"},"content":{"rendered":"It was the battery claim of the decade. Donut Lab introduced solid-state cells that shocked the battery world with their efficiency and blistering charging times.\r\n\r\nNow, it turns out that it was just a decent liquid lithium-ion cell with an ambitious press release. Finnish financial and criminal au<div class=\"leaky_paywall_message_wrap\"><div id=\"leaky_paywall_message\"><img data-recalc-dims=\"1\" decoding=\"async\" class=\"nag_logo\" src=\"https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2022\/02\/nmn-logo-long-transparent-small-4.png?w=300&#038;ssl=1\"  alt=\"Actualit\u00e9s sur les nouvelles mobilit\u00e9s\" \/>\r\n\r\n<h2 class=\"text-center\">\r\n\tLisez cet article gratuitement d\u00e8s maintenant !\r\n<\/h2>\r\nCr\u00e9ez un compte gratuit pour acc\u00e9der \u00e0 cet article et profiter pleinement de New Mobility.\r\n\n\t\t<div id=\"leaky-paywall-quick-register\" class=\"inline\">\n\t\t\t<form id=\"leaky-paywall-quick-register-form\" method=\"POST\" action=\"\" data-trp-original-action=\"\">\n\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<p class=\"form-field email-field\">\n\t\t\t\t\t<label for=\"email\">Courriel<\/label>\n\t\t\t\t\t<input class=\"email\" type=\"email\" name=\"email\" placeholder=\"Entrez votre adresse e-mail\" value=\"\" required>\n\t\t\t\t<\/p>\n\n\t\t\t\t\t\t\t\t\t<p class=\"form-field password-field\">\n\t\t\t\t\t\t<label for=\"password\">Mot de passe<\/label>\n\t\t\t\t\t\t<input class=\"password\" type=\"password\" name=\"password\" placeholder=\"Cr\u00e9er un mot de passe\" value=\"\" required>\n\t\t\t\t\t<\/p>\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<input name=\"company_url\" type=\"text\" value=\"\" autocomplete=\"off\" tabindex=\"-1\" style=\"display:none !important; position:absolute; left:-9999px;\" \/>\n\n\t\t\t\t<input type=\"hidden\" name=\"level_id\" value=\"20\">\n\n\t\t\t\t<input type=\"submit\" value=\"Inscrivez-vous gratuitement\">\n\n\t\t\t\t\n\t\t\t<input type=\"hidden\" name=\"trp-form-language\" value=\"fr\"\/><\/form>\n\n\t\t\t<div id=\"leaky-paywall-quick-register-errors\"><\/div>\n\t\t<\/div>\n\n\r\n\r\n<p class=\"text-center\"><strong>\u2014 OU \u2014<\/strong>\r\n\r\n<p class=\"text-center\"><strong>Abonnez-vous d\u00e8s maintenant<\/strong> B\u00e9n\u00e9ficiez d'un acc\u00e8s illimit\u00e9 au contenu original de nos partenaires \u00e9ditoriaux, recevez des alertes sur les derni\u00e8res actualit\u00e9s et obtenez chaque jour un r\u00e9sum\u00e9 r\u00e9dig\u00e9 par nos journalistes sp\u00e9cialis\u00e9s des articles incontournables sur votre secteur.<\/p>\r\n\r\n<div class=\"nag_buttons\">\r\n\t<a class=\"button\" href=\"https:\/\/newmobility.news\/fr\/abonnement\/\">Abonnez-vous d\u00e8s maintenant<\/a> \r\n\t<span class=\"nag_button_divider\"> ou <\/span> \r\n\t<a href=\"https:\/\/newmobility.news\/fr\/log-in\/\">CONNEXION<\/a>\r\n<\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>It was the battery claim of the decade. Donut Lab introduced solid-state cells that shocked the battery world with their efficiency and blistering charging times. Now, it turns out that it was just a decent liquid lithium-ion cell with an ambitious press release. Finnish financial and criminal au Read this article now for free! Register [&hellip;]<\/p>\n","protected":false},"author":715,"featured_media":187540,"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}\n\n{excerpt}\n\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":[77162,77198,2043,28,16,6,4,17],"tags":[],"class_list":["post-187539","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-batteries","category-concepts","category-energy","category-europe","category-industry","category-technology","category-top-stories-today","category-weekly-newsletter"],"acf":[],"featured_image_urls_v2":{"full":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/06\/Donut-Lab-solid-state.png?fit=2166%2C1208&ssl=1",2166,1208,false],"thumbnail":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/06\/Donut-Lab-solid-state.png?resize=150%2C150&ssl=1",150,150,true],"medium":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/06\/Donut-Lab-solid-state.png?fit=300%2C167&ssl=1",300,167,true],"medium_large":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/06\/Donut-Lab-solid-state.png?fit=640%2C357&ssl=1",640,357,true],"large":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/06\/Donut-Lab-solid-state.png?fit=640%2C357&ssl=1",640,357,true],"1536x1536":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/06\/Donut-Lab-solid-state.png?fit=1536%2C857&ssl=1",1536,857,true],"2048x2048":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/06\/Donut-Lab-solid-state.png?fit=2048%2C1142&ssl=1",2048,1142,true],"trp-custom-language-flag":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/06\/Donut-Lab-solid-state.png?fit=18%2C10&ssl=1",18,10,true],"related-thumb":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/06\/Donut-Lab-solid-state.png?resize=640%2C480&ssl=1",640,480,true],"gform-image-choice-sm":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/06\/Donut-Lab-solid-state.png?resize=300%2C300&ssl=1",300,300,true],"gform-image-choice-md":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/06\/Donut-Lab-solid-state.png?resize=400%2C400&ssl=1",400,400,true],"gform-image-choice-lg":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/06\/Donut-Lab-solid-state.png?resize=600%2C600&ssl=1",600,600,true],"mailchimp":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/06\/Donut-Lab-solid-state.png?fit=560%2C312&ssl=1",560,312,true],"unipress-phone":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/06\/Donut-Lab-solid-state.png?resize=640%2C100&ssl=1",640,100,true],"unipress-tablet":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/06\/Donut-Lab-solid-state.png?resize=1536%2C240&ssl=1",1536,240,true],"unipress-tablet-portrait":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/06\/Donut-Lab-solid-state.png?resize=1536%2C180&ssl=1",1536,180,true],"unipress-tablet-landscape":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/06\/Donut-Lab-solid-state.png?resize=2048%2C180&ssl=1",2048,180,true],"unipress-smartphone":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/06\/Donut-Lab-solid-state.png?resize=1080%2C168&ssl=1",1080,168,true],"unipress-wide-screen":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/06\/Donut-Lab-solid-state.png?resize=2166%2C180&ssl=1",2166,180,true]},"post_excerpt_stackable_v2":"<p>It was the battery claim of the decade. Donut Lab introduced solid-state cells that shocked the battery world with their efficiency and blistering charging times. Now, it turns out that it was just a decent liquid lithium-ion cell with an ambitious press release. Finnish financial and criminal au Read this article now for free! Register a free account and gain access to this article and get more from New Mobility Email Password \u2014 OR \u2014 Subscribe now Get unlimited access to the original content of our publishing partners, be alerted on breaking news and get a daily business summary, composed&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\/concepts\/\" rel=\"category tag\">Concepts<\/a>, <a href=\"https:\/\/newmobility.news\/fr\/category\/energy\/\" rel=\"category tag\">Energy<\/a>, <a href=\"https:\/\/newmobility.news\/fr\/category\/europe\/\" rel=\"category tag\">Europe<\/a>, <a href=\"https:\/\/newmobility.news\/fr\/category\/industry\/\" rel=\"category tag\">Industry<\/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>, <a href=\"https:\/\/newmobility.news\/fr\/category\/weekly-newsletter\/\" rel=\"category tag\">Weekly Newsletter<\/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 v28.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Finnish fraud: miracle solid-state battery turns out to be false - 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\/09\/finnish-fraud-miracle-solid-state-battery-turns-out-to-be-false\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Finnish fraud: miracle solid-state battery turns out to be false - newmobility.news\" \/>\n<meta property=\"og:description\" content=\"It was the battery claim of the decade. 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