China leads lithium-ion battery innovation with large-format cells for longer energy storage.

China dominates the lithium-ion battery market with companies like CATL advancing large-format cells that extend energy storage duration. Zenergy Battery plans a 50GWh project using 588Ah cells, while others like Hithium and BYD have developed cells over 1,000Ah. These larger cells offer cost and efficiency benefits but require improved thermal management due to heat risks. The shift to longer-duration storage (four to eight hours) supports safer, more efficient battery use and boosts demand for key materials like lithium and copper. Industry focus will be on developments showcased at the upcoming Fastmarkets Lithium Conference in Las Vegas.