Xin Lang Cai Jing·2026-01-15 14:10Group 1 - Donut Lab, a Finnish startup, has unveiled the world's first mass-producible all-solid-state battery with impressive specifications: 400Wh/kg energy density, operational temperature range of -30℃ to 100℃, 5-minute full charge, and a lifespan of 100,000 cycles [3][25] - The company plans to deliver electric motorcycles equipped with this battery in the first quarter of 2026, potentially making it the first player to mass-produce all-solid-state batteries for vehicles [3][25] Group 2 - The current focus in the industry remains on sulfide solid-state batteries, which are seen as the most viable path to commercialization, with lithium sulfide (Li₂S) being a critical precursor material [5][27] - The supply chain for sulfide solid-state batteries is clear: sulfide solid-state batteries → sulfide solid electrolytes → key precursor materials (Li₂S), indicating a single path dependency [6][27] Group 3 - The cost structure of sulfide solid electrolytes shows that lithium sulfide typically accounts for 70%-80% of the cost, making it a key variable in determining the overall cost of the electrolyte [8][28] - The demand for lithium sulfide is highly concentrated in the sulfide solid electrolyte sector, with limited applications in other areas, indicating a strong dependency between lithium sulfide and sulfide solid electrolytes [8][30] Group 4 - The potential downstream applications for sulfide solid-state batteries include power batteries, electrochemical energy storage, consumer electronics, and emerging fields like embodied intelligence and low-altitude economy [9][31] - In 2024, global lithium-ion battery shipments are expected to reach 1,545.1GWh, with power batteries accounting for 1,051.2GWh (68% of total shipments) [9][31] Group 5 - By 2030, the demand for power batteries is projected to exceed 3,000GWh, with estimates ranging from 3,300GWh to 3,910GWh, indicating a compound annual growth rate of approximately 22% [11][33] - The penetration rate of solid-state batteries in high-value vehicle segments is estimated to be around 6% by 2030, translating to a need for approximately 200GWh of solid-state batteries for electric vehicles [16][38] Group 6 - Current global production capacity for lithium sulfide is limited, with most projects in the pilot or small-scale production phase, indicating a significant gap between supply and the anticipated demand of tens of thousands of tons [19][41] - The effective supply of lithium sulfide is extremely scarce, with most production lines operating at low capacity, highlighting a constrained supply situation that could change rapidly if solid-state batteries gain traction [21][43] Group 7 - The expansion of lithium sulfide production capacity is expected to be slow and steady, requiring time to optimize production environments, purity, and safety management [44] - The solid-state battery market holds significant potential, and the story of lithium sulfide may evolve into a compelling narrative over the next decade [22][44]