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At 'InterBattery 2026' in Seoul, Shoichiro Watanabe, CTO of Panasonic Energy, stated that energy density is crucial for humanoid robot batteries. Analysts suggest that ternary batteries, which Korea and Japan excel in, will likely become the standard over China's LFP batteries.

Watanabe clarified that Panasonic has no plans to produce LFP batteries, highlighting the importance of cylindrical and pouch battery types. He also expressed optimism about all-solid-state batteries, citing Panasonic’s significant patent portfolio. Watanabe acknowledged the competitive yet cooperative relationship between Korean and Japanese battery companies.