Toyota Motor Corp. is scrambling to solve outstanding issues as it races to commercialize a battery breakthrough during the first half of the 2020s with the potential to cut the cost of making electric cars.

The all solid-state battery is a next-generation, high-capacity energy storage technology that improves on today's lithium-ion batteries, replacing the liquid or gel-form electrolyte with a solid, conductive material.

Among other benefits, the new technology offers more capacity and better safety.