Soochow Securities·2025-09-21 07:29Investment Rating - The report maintains an "Accumulate" rating for the battery industry [1] Core Insights - The battery industry is experiencing accelerated technological breakthroughs, with profitability turning a corner [1] - Solid-state batteries are entering a critical mid-test phase, with significant advancements in the supply chain and technology [3][8] - The demand for energy storage batteries is exceeding expectations, with a notable improvement in profitability [28] Summary by Sections 1. Battery Industry Hotspot Value Analysis - Solid-State Batteries: The technology is converging towards sulfide as the main route, with new materials and technologies being rapidly developed. Solid-state batteries significantly enhance safety and energy density, with theoretical values exceeding 500 Wh/kg [8][9] - Energy Storage Batteries: Demand is being driven by domestic capacity price compensation and high growth in Europe and emerging markets. Global energy storage battery demand is expected to increase by 60% year-on-year in 2025, with a revised forecast of 500-550 GWh [28][29] 2. Battery ETF (159755): The Largest Battery-Themed ETF - The ETF closely tracks the core leaders in the new energy vehicle and energy storage sectors, showcasing significant long-term investment value due to the high growth potential of these industries [3][28] - As of September 16, 2025, the ETF's scale reached 10.8 billion yuan, with a daily trading volume significantly higher than the industry average [3][28] 3. Solid-State Battery Development - The industry anticipates that small-scale production of solid-state batteries will begin in 2027, with large-scale production expected to exceed 100 GWh by 2030 [25][27] - Major manufacturers like CATL and BYD are making significant progress, with 60Ah automotive-grade cells already offline, achieving energy densities of 350-400 Wh/kg [19][21] 4. Energy Storage Battery Demand and Supply - The global energy storage market is projected to see a demand of 310 GWh in 2025, with a year-on-year growth of 47%. The supply side is expected to maintain a high capacity utilization rate of 86% [35][36] - The price of energy storage batteries is showing signs of recovery, with a bottom-up trend observed in pricing, leading to improved profitability for leading companies [37][38]