{"id":120030,"date":"2026-03-03T09:55:06","date_gmt":"2026-03-03T09:55:06","guid":{"rendered":"https:\/\/www.europesays.com\/ee\/120030\/"},"modified":"2026-03-03T09:55:06","modified_gmt":"2026-03-03T09:55:06","slug":"soomlaste-salaparane-tahkisaku-pistis-rinda-porgukuumusega-ja-valjus-teadlaste-hinnangul-voitjana","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/ee\/120030\/","title":{"rendered":"Soomlaste salap\u00e4rane tahkisaku pistis rinda p\u00f5rgukuumusega ja v\u00e4ljus teadlaste hinnangul v\u00f5itjana"},"content":{"rendered":"<p>Tavalised liitiumioonakud on pirtsakad, nende mugavustsoon l\u00f5ppeb seal, kus algab korralik p\u00e4ikseline suvep\u00e4ev \u2013 juba 60\u201370 kraadi juures hakkavad need h\u00e4\u00e4buma. Liigne kuumus on tavalistele akudele saatuslik: sisemised reaktsioonid kiirenevad, eluiga l\u00fcheneb ning halvimal juhul v\u00f5ib tekkida termiline laviin ehk s\u00fcttimine.<\/p>\n<p>Soome idufirma <a class=\"ng-star-inserted\" target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https:\/\/www.donutlab.com\">Donut Lab<\/a> on aga v\u00e4lja tulnud lahendusega, mis lisaks suuremale energiatihedusele pidi pakkuma ka palju paremat turvalisust. Nende arendatud tahkisaku (solid-state battery) ei sisalda kergestis\u00fcttivaid vedelaid elektrol\u00fc\u00fcte, mis teeb seadmest olemuselt hoopis teise masti tegija. Samas on paljud skeptikud k\u00f5hklevad v\u00e4idete t\u00e4ep\u00e4rasuse suhtes. Et nende suid sulgeda, tellis ettev\u00f5te s\u00f5ltumatud m\u00f5\u00f5tmised mainekalt <a class=\"ng-star-inserted\" target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https:\/\/www.vttresearch.com\/en\">VTT Tehniliste Uuringute Keskuselt<\/a>.<\/p>\n<p>Katsed j\u00e4ises rahus ja kuumuses<\/p>\n<p><a target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https:\/\/www.vttresearch.com\/en\/news-and-ideas\/donut-lab-commissioned-vtt-carry-out-battery-measurements-support-its-product\">VTT laborites<\/a> ei tehtud Donut Battery\u2019le mingeid j\u00e4releandmisi. Katse oli lihtne ja karm: akuelement t\u00f5steti alumiiniumprofiilile, suruti terasplaadi vahele (et v\u00e4ltida juhuslikke kuumi punkte) ning pisteti ahju.<\/p>\n<p>Esmalt m\u00f5\u00f5deti aku mahutavust toatemperatuuril, et luua v\u00f5rdlusmoment. Seej\u00e4rel keerati kuumust juurde \u2013 k\u00f5igepealt 80 \u00b0C ja siis suisa 100 \u00b0C ehk tavalisele vee keemistemperatuurile.<\/p>\n<p>Paljud akud oleksid sellises olukorras juba ammu \u00fcles \u00f6elnud, kuid Donut Labi tehnoloogiajuht Ville Piippo m\u00e4rkis, et nende aku jaoks on see ikka veel loomulik keskkond. P\u00e4rast kahetunnist stabiliseerumist neis ekstreemsetes oludes hakati akut t\u00fchjendama, et n\u00e4ha, kui palju energiat sealt tegelikult k\u00e4tte saab.<\/p>\n<p>F\u00fc\u00fcsikaseadused m\u00e4ngivad kaasa<\/p>\n<p>Tulemused, mis on k\u00e4ttesaadavad <a class=\"ng-star-inserted\" target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https:\/\/www.idonutbelieve.com\">I Donut Believe<\/a> veebilehel, panid kulmu kergitama ka k\u00f5ige suuremad kahtlejad. Selgus, et kuumuses ei p\u00fcsinud aku mitte lihtsalt elus, vaid muutus natuke t\u00f5husamaks:<\/p>\n","protected":false},"excerpt":{"rendered":"Tavalised liitiumioonakud on pirtsakad, nende mugavustsoon l\u00f5ppeb seal, kus algab korralik p\u00e4ikseline suvep\u00e4ev \u2013 juba 60\u201370 kraadi juures&hellip;\n","protected":false},"author":2,"featured_media":120031,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_share_on_mastodon":"0"},"categories":[12],"tags":[390,5197,26,27,40469,37,33,35,55791,55793,34,36,31,32,21,28,29,19,25,39603,23,24,22,20,30,55792],"class_list":["post-120030","post","type-post","status-publish","format-standard","has-post-thumbnail","category-eesti","tag-aku","tag-autotootjad","tag-breaking-news","tag-breakingnews","tag-donut-lab","tag-ee","tag-eesti","tag-eesti-keel","tag-elektrimootorrattad","tag-energiatehnoloogia","tag-estonia","tag-estonian","tag-featured-news","tag-featurednews","tag-headlines","tag-latest-news","tag-latestnews","tag-news","tag-populaarseimad-lood","tag-tahkisaku","tag-top-stories","tag-topstories","tag-uldised-uudised","tag-uudised","tag-viimased-uudised","tag-vtt-tehniliste-uuringute-keskus"],"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@ee\/116164645496207469","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/posts\/120030","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/comments?post=120030"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/posts\/120030\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/media\/120031"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/media?parent=120030"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/categories?post=120030"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/tags?post=120030"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}