谁卡住了固态电池的材料端

Group 1 - The core viewpoint of the article highlights the emergence of Donut Lab's all-solid-state battery with impressive specifications, including an energy density of 400Wh/kg, operational temperature range of -30℃ to 100℃, 5-minute full charge time, and a lifespan of 100,000 cycles, which has garnered significant attention in the industry [3][5] - Donut Lab plans to deliver electric motorcycles equipped with this battery in the first quarter of 2026, potentially making it the first company to mass-produce all-solid-state batteries for vehicles [3] - The article emphasizes the reliance on lithium sulfide (Li₂S) as a critical precursor material in the production of sulfide solid electrolytes, which are essential for the commercialization of solid-state batteries [7][8] Group 2 - The demand for lithium sulfide is projected to reach tens of thousands of tons annually, driven primarily by the need for sulfide solid electrolytes in solid-state batteries [10][20] - The global production capacity for lithium sulfide is currently limited to a few thousand tons, indicating a significant supply-demand gap as the industry moves towards larger-scale production [25][26] - The article notes that the expansion of lithium sulfide production capacity will likely be slow and steady, requiring several years to meet the anticipated demand once solid-state batteries gain traction in the market [28][29]