2026年08月07日 日本語

Solving the Electrolyte Puzzle: MIT Scientists Make Sodium-Metal Batteries a Practical Reality

The quest for a cheaper, more abundant alternative to lithium-ion batteries has taken a significant leap forward. MIT scientists have identified a solution to the “solvent problem” that has long plagued sodium-metal batteries. By re-engineering the electrolytes, the team has managed to stabilize the reactive nature of sodium, turning it into a viable candidate for high-capacity energy storage.

Sodium is far more plentiful and cost-effective than lithium, but its tendency to degrade quickly in battery cells had hindered its adoption. The MIT research demonstrates that with the right chemical focus on electrolyte interactions, sodium-metal batteries can achieve the durability and performance needed for electric vehicles and power grids, marking a pivotal shift in the future of battery technology.