Unigrid has replaced the electrolyte with a solid sulfide electrolyte, the anode with tin impregnated with single-walled carbon nanotubes, and the cathode with sodium-chromium-oxide (NaCrO2). Unlike batteries that use lithium for the cathode, the Na+ Fleet does not use rare earths, is safer during storage and use, and is better for the environment at the end of its life, according to the company. Unigrid CEO Darren Tan notes the sodium-ion batteries won’t catch fire until temperatures exc...

The Digiera HoloMax handheld gaming PC controllers can be detached and used wirelessly to play games on the glasses-free 3D screen. (Image source: Digiera) The Digiera HoloMax has debuted at IFA 2025 with a glasses-free 3D display, smart eye tracking, and real-time 2D-to-3D conversion powered by AstraDepth3D and AI. Available in three AMD-powered tiers, the handheld-laptop hybrid offers up to 64 GB RAM, 4 TB storage, and magnetic controllers for portable gaming. Digiera has unveiled the HoloMax...