A typical recycling process for solar panels starts with shredding the panels into 4 - 5mm pieces to remove lamination. But researchers from the Netherlands Organization for Applied Scientific Research (TNO) are looking at an innovative adhesive, or encapsulate, that can enable the quick disassembly of the panel at the end-of-life. https://www.pv-magazine.com/2021/12/09/recyclable-back-contact-solar-panel-from-the-netherlands/
Under development since 2017, this liquid metal battery (LMB) is about to be let loose on the globe. Consisting of 3 liquid layers; 2 of molten metals and a middle layer of molten salts. The system is self-heating and insulated, but contains no combustible materials - so they can't burn. And they retain all of their charge capacity for at least 5000 cycles (think decades, not years). Modular, safer and cheaper than lithium-ion batteries. https://ambri.com/technology/