CATL advances solid-state cells and storage products

· Energy · China · Germany

CATL hit another milestone in solid-state battery development, advancing to 20 Ah cells with an eye on 500 Wh/kg and aiming to begin small-scale production in 2027. The world's largest battery maker also unveiled its 9 MWh Tener+ storage system, which it says can cut container requirements by up to 40% and project footprints by 12%, and deepened its Australian presence. In a separate storage move, CATL signed a deal with Germany's Intilion to deploy 3 GWh of sodium-ion Tener Sodium systems over five years in Germany, Switzerland and Austria. Together the items show CATL pushing on two fronts: next-generation cell chemistry for vehicles and larger-format, lower-footprint products for grid storage.

Why it matters：Progress toward higher-density solid-state cells and cheaper, denser grid storage affects cost curves for both EVs and utility-scale batteries, where CATL's scale sets the pace for rivals.

Key points

  • The solid-state cells have reached 20 Ah, with a 500 Wh/kg target and 2027 small-scale production planned.
  • Tener+ is a 9 MWh system claimed to cut container needs by up to 40% and footprints by 12%.
  • The Intilion deal covers 3 GWh of sodium-ion storage over five years across Germany, Switzerland and Austria.

Sources (original reporting)

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