Core Viewpoint - Solid-state batteries represent the next generation of high-performance batteries, with short-term prospects for oxide semi-solid batteries and long-term potential for sulfide all-solid-state batteries, characterized by high material flexibility and high equipment certainty [1][8]. Group 1: Industry Progress and Market Outlook - The overseas development of solid-state batteries is progressing steadily, with product performance continuously improving. Battery manufacturers and automakers are collaborating on technology licensing, production line construction, and road testing, with mass production timelines set for 2026-2030 [4][12]. - Solid Power and Factorial Energy have entered vehicle testing phases, while QuantumScape and Samsung SDI have delivered samples, all targeting mass production between 2026 and 2030 [4][6]. - The solid-state battery market is expected to reach a shipment volume of 614.1 GWh by 2030, with a market size exceeding 250 billion yuan [14]. Group 2: Technological Developments - Solid-state batteries are characterized by high energy density and safety, with energy densities ranging from 301 to 560 Wh/kg for various products. For instance, Factorial Energy's Solstice battery supports a range of 1000 km and fast charging capabilities [6][14]. - The industry is witnessing a shift towards sulfide technology, with major players focusing on this route due to its potential advantages over existing technologies [8][24]. - The solid-state battery production process involves significant technological barriers, with new equipment expected to accelerate production as companies enter pilot testing phases [9][38]. Group 3: Investment Opportunities - Companies that are early in solid-state battery development and have experience in large-scale production are likely to benefit from the growing market [20][41]. - The solid-state battery sector is expected to attract significant investment, with government support and policy initiatives aimed at accelerating research and development [21][41]. - The collaboration between automakers and battery manufacturers is expected to drive commercial progress, with several companies already initiating vehicle testing and production plans [12][17].