Kestävä energia

Sodium-Ion Batteries Are Coming – Cheaper, Safer and Poised to Disrupt Lithium-Ion
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Natriumioniakut ovat tulossa – edullisemmat, turvallisemmat ja valmiina syrjäyttämään litiumioniakut

CATL ilmoitti aloittavansa natriumioniakkujen massatuotannon joulukuussa 2025, ja sen toisen sukupolven kennot, ”Naxtra”, tarjoavat noin 175 Wh/kg energian tiheyden. Natriumioniakut rakentuvat samalla periaatteella kuin litiumioniakut: katodimateriaali natriumia sisältävää, anodi kovasta hiilestä sekä nestemäinen elektrolyytti, jonka kautta natrium-ionit kulkevat. Natrium on maapallon yleisin
18 elokuun, 2025

Technology News

  • IXI's autofocusing glasses near-ready to replace multifocal lenses
    January 9, 2026, 3:44 AM EST. IXI is pushing autofocusing glasses designed for age-related farsightedness. In Las Vegas, the startup showed a 22-gram prototype frame and working lenses that automatically switch prescriptions as the eye shifts focus. The system uses eye tracking with infrared LEDs and photodiodes around the lens edge, not a camera, to monitor movement, blinking and gaze. It draws about 4 milliwatts of power and stores most electronics-memory, sensors and driving circuitry-in the front frame and near the hinge. A battery the size of AirPods sits in the arms; charging is via a port in the left hinge, so the glasses can't be worn while charging. IXI targets a full day of use with a discreet, normal appearance.