Finskt startup annoncerer revolutionerende faststoffbatteri til motorcykler

Et finsk startup kaldet Donut Labs afslørede en motorcykel med en angiveligt banebrydende faststoffbatteri på CES i Las Vegas. Batteriet hævdes at lagre 400 watt-timer pr. kilogram, tåle temperaturer fra minus 40 til plus 100 grader og give op til 600 kilometers rækkevidde med opladningstid under ti minutter. På trods af skepsis fra tidligere skuffelser planlægger virksomheden at offentliggøre uafhængige testresultater.

Det finske startup Donut Labs, grundlagt af Marko Lehtimäki, præsenterer teknologi under motorcykelmærket Verge, som roses som en revolution inden for batteriteknologi. På CES-messen i begyndelsen af januar i Las Vegas blev køretøjet udstillet med en elmotor integreret direkte i fælgen på et navløst hjul – en form der minder om en doughnut, der holder tyngdepunktet lavt. Faststoffbatteriet lover exceptionelle egenskaber: 400 watt-timer energi pr. kilogram, modstandsdygtighed over for ekstreme temperaturer fra minus 40 til plus 100 grader Celsius, rækkevidde op til 600 kilometer pr. opladning og genopladning på under ti minutter. Det siges også at holde 100.000 opladningscyklusser, mens motorcyklen koster 30.000 euro. Lehtimäki imødegår tvivl direkte: «Schon klar, dass man einer kleinen Gruppe Außenseiter erst mal nicht glaube», siger han i en video og lover bevis for teknologien, som store virksomheder har mislykkes med trods milliarder i investeringer. Baggrund: Faststoffbatterier med faste elektrolytter betragtes som sikrere og potentielt kraftigere end konventionelle lithium-ion-batterier med flydende elektrolytter. Eksempler som konkursen hos den svenske producent Northvolt eller fiaskoer i europæiske produktionsplaner understreger udfordringerne. Volkswagen nævnte et batteri med 1.000 cyklusser, svarende til 500.000 kilometer, og Mercedes-Benz testede en faststoffprototyp over 1.200 kilometer uden stop fra Stuttgart til Malmö. Tidsplaner for masseproduktion forbliver usikre. Donut Labs hævder at have startet seriekroductionen allerede. En uafhængig vurdering fra det finske VTT Technical Research Centre skal verificere påstandene; resultaterne offentliggøres trinvis fra mandag. Teknologien kan fremme ikke kun motorcykler, men hele el-mobilitetssektoren med fordele for klimaet og genbrug, da batterierne holder længere og råmaterialer kan genbruges. Eksperter er skeptiske, men nysgerrige.

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