The latest move by the Chinese battery giant puts particular pressure on LG Energy Solution, Samsung SDI and SK On, as their research and development of sodium-ion batteries is still in its early stages. Chinese battery firms have rapidly expanded their market share with cheaper LFP batteries in recent years. Experts warn that Korean battery firms could face heightened risks of losing global market share, following CATL’s plans to begin mass-producing sodium-ion batteries. Sodium-ion batteries have some other advantages, as they can be charged stably even in low temperatures, he said. Industry officials said Korean battery firms need to overhaul their strategy to counter the mounting threat from Chinese rivals.