LG Chem said on November 25, 2025 that it has developed a core technology that could enable the commercialization of all-solid-state batteries. The breakthrough centers on achieving a uniform particle size for the solid-electrolyte material used in such batteries — a factor that this firm cites as critical to improved performance. (LG Chem press release, Nov. 25, 2025)

Compared with batteries using existing electrolytes, the new battery design reportedly delivers a roughly 15% increase in basic capacity and a 50% increase in high-rate discharge capacity.

The research was carried out by LG Chem’s Next-Generation Materials Research Institute in collaboration with a research team led by Professor Taeseup Song at Hanyang University, South Korea. The team’s findings have been published in the peer-reviewed journal Advanced Energy Materials.

All-solid-state batteries — which replace liquid or polymer electrolytes with solid ones — have been considered a promising next step for electric-vehicle (EV) and energy-storage applications because of potential gains in safety, energy density, and longevity.

That the research has passed peer review in Advanced Energy Materials signals that the science has undergone external validation, though the announcement does not specify a commercial production timeline, cost per kilowatt-hour, or real-world durability data such as cycle life or calendar life.

LG Chem has supplied battery cells or packs to a range of major automakers, including General Motors (GM), Ford Motor Company, Daimler AG (including the Smart brand), Renault, Volvo, Hyundai / Kia, and other European automakers such as Audi.