- Three-year, 60GWh supply agreement between CATL and HyperStrong for sodium‑ion batteries
- CATL says energy density improved via morphology control and surface modification of sodium‑ion cells
- Process fixes—hard‑carbon foaming control, moisture management, angstrom‑scale pore regulation and molecular water‑locking—aim to ensure consistent large‑volume production and Li‑ion form‑factor compatibility
Deal overview
On April 27 in Ningde, Fujian, CATL and HyperStrong signed a three‑year strategic cooperation for 60GWh of sodium‑ion batteries for energy storage; HyperStrong is named as CATL's first strategic partner for sodium‑ion energy storage and will collaborate on technology R&D, product applications and project deployment.
Manufacturing and cell improvements
CATL reports gains in energy density through morphology control and surface modification of sodium‑ion cells and describes process solutions for mass production—addressing hard‑carbon foaming and moisture control via angstrom‑level pore regulation, surface molecular water‑locking and adaptive dynamic formation—to improve consistency in large‑volume output.
Performance, compatibility and scale
Sodium‑ion chemistry is noted for wide temperature adaptability, improved high‑temperature cycle life, lower heat generation and reduced cell expansion stress, which support safety and stability; CATL also designs its sodium‑ion energy‑storage cells to share the lithium‑ion form factor to ease integration with existing supply chains. The 60GWh agreement is reported as the largest sodium‑ion battery supply deal to date, supporting large‑scale industrialization of the technology.
