[SMM Co3O4 Weekly Review] Co3O4 Prices Remained Stable This Week

[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.

[Solid-State Battery: EcoPro BM Forms All-Solid-State Battery Team Covering the Full "Raw Material-Material-Battery Cell" Chain, Targeting Commercialization by 2027] On August 26, 2026, EcoPro BM held a kick-off meeting in Gyeonggi Province, officially forming an "all-solid-state battery team" covering the full "raw material-material-battery cell" chain. The project is led by South Korea's Ministry of Trade, Industry and Energy, and EcoPro BM was selected in early August, along with four other enterprises, as a third-phase "super subcontractor" company. Team participants include the Korea Electronics Technology Institute (KETI), the Korea Institute of Science and Technology (KIST), Pohang University of Science and Technology (POSTECH), Hanyang University, and others. EcoPro BM plans to develop sulphide-based solid electrolytes based on high-purity lithium sulphide, with the goal of commercializing sulphide-based all-solid-state batteries by 2027. Reported by Yonhap News Agency and other South Korean media on August 31.

En Intersolar South America en Brasil (25-27 de agosto), alrededor de 20 empresas chinas de almacenamiento de energía exhibieron. Chuneng New Energy firmó acuerdos con cuatro socios, incluidos memorandos de entendimiento con Intermepro de Argentina e ION Energy y JSN Energia de Brasil, además de un acuerdo marco de celdas de 1,5 GWh con Windey Energy para suministrar celdas para su primera planta de almacenamiento en el extranjero en Bahía, Brasil. Con una red frágil, una tasa de recorte del 20,6 % y los segundos precios residenciales de electricidad más altos del mundo, Brasil lanzará la mayor licitación nacional de almacenamiento de América Latina (alrededor de 18 GW en la primera ronda) en diciembre de 2026, atrayendo a CATL, Trina, Hithium, CLOU, Gotion y Great Power a expandirse localmente.