CATL

No company in sodium-ion has more weight to throw around than CATL, and it shows: holding roughly 37% of the global lithium-ion market gave it the manufacturing infrastructure to out-produce every rival, BYD included. The April 2025 Naxtra family already delivers 175 Wh/kg — enough for 500+ km EV ranges and genuinely competitive with mainstream LFP — while the April 2026 BESS cell pushes further still, at 300+ Ah, 160 Wh/kg, 15,000 cycles to 80% retention, and 97% efficiency from -40°C to 70°C. Backing all of it is nearly 10 billion yuan (~$1.45 billion) in sodium-ion R&D and manufacturing partnerships with Changan, GAC, and JD.com. CATL itself is projecting 30-40% of the global battery market will run on sodium-ion — a bet only a company this size could make.