Grid-scale batteries have, until recently, been predominantly used only to stabilize the frequency of electricity supply. But as prices have dropped dramatically in recent years and new chemistries like sodium-ion have come into the mainstream, batteries have started to replace coal power stations and even gas peaker plants. So, is the final death knell now being sounded for the combustion of fossil fuels? Here is a direct video link.

What if your phone battery charged in seconds instead of hours? What if buildings could cut their carbon emissions in half? What if medical sensors could detect diseases years earlier than they do today? Graphene was supposed to deliver all of this and more. Since 2004, researchers called it a wonder material. It would revolutionize everything. 20 years later? Most of those promises fell flat. But now graphene supercapacitors are powering AI data centers. Graphene-enhanced concrete is being poured at industrial sites. Medical sensors using graphene are hitting the market. The trickle is turning into a flood. Here is a direct video link.