Jun 20, 2026 - The problem with sodium-ion batteries
Lithium-ion batteries power almost everything but could sodium be the future? In this video, we break down how sodium-ion batteries work, why they`re gaining serious attention, and where they could shake up the energy world. We cover the key advantages sodium-ion brings to the table: extreme cold performance, improved thermal safety, and a reliance on some of the most abundant materials on Earth reducing our dependence on costly and geopolitically sensitive resources like lithium and cobalt. But it`s not all smooth sailing; we also explore the challenges holding sodium-ion back, from lower energy density to the ever-falling cost of lithium-ion. Rather than a head-to-head replacement, sodium-ion looks set to carve out its own space from grid-scale energy storage to short-range EVs and emerging markets as part of a broader, more diverse battery ecosystem.