/technologies/power-management/b/blog/posts/technology-from-140-year-old-rusty-batteries-offers-a-step-toward-a-100-renewable-gridForm Energy has introduced the iron-air battery as their first step toward zero-carbon energy solutions. (Credit: Form Energy ) Lithium-ion batteries, while a modern mainstay in energy storage technology used from smartphones to electric cars, is cosen-USTelligent Community 12