[Solid-State Battery: Tianneng Co., Ltd. Achieves Scaled Delivery of Semi-Solid-State 314Ah Battery Cells, with Tiered Breakthroughs Across Multiple Technology Systems]
[Solid-state battery: Tianneng Battery achieves large-scale delivery of semi-solid-state 314Ah battery cells, with multi-technology systems making breakthroughs in stages] On 28 August 2026, Tianneng Battery disclosed in its H1 2026 semi-annual report that the semi-solid-state 314Ah battery cells produced in cooperation with WELION New Energy have achieved large-scale batch delivery and have been successfully applied first to grid-side ESS equipment. The company has laid out multiple new-type battery technology routes, including solid-state batteries, sodium-ion batteries and hydrogen fuel cells, and its "lithium-lithium-hydrogen-sodium + solid-state" multi-technology system is accelerating its formation, with the industrialisation process showing a staged progression of "sodium-ion battery demonstration and verification, solid-state battery deployment in multiple scenarios, and accelerated commercialisation of hydrogen fuel". The company's lithium battery business has significantly accelerated its push to go global, with residential ESS outside China as a key breakthrough direction. For specific H1 financial data, please refer to the full report. Semi-solid-state battery: solid-liquid battery.