Dongguan Securities·2025-12-31 09:03Investment Rating - The report maintains an "Overweight" rating for the silicon-based anode industry, highlighting the breakthrough in CVD technology and the increasing mainstream adoption of silicon-carbon anodes [1]. Core Insights - Silicon-based anodes are identified as the next-generation anode material for lithium batteries, addressing the performance limitations of traditional graphite anodes, which are nearing their performance limits [4][19]. - The demand for silicon-based anodes is expected to accelerate with the promotion of new battery technologies, particularly in the electric vehicle sector, where consumer expectations for range and fast charging are rising [4][30]. - The industrialization of silicon-based anodes is approaching a critical turning point, driven by advancements in CVD technology, which enhances performance metrics such as capacity and cycle life [4][44]. Summary by Sections 1. Silicon-based Anodes as a New Direction - Lithium battery anode materials are categorized into carbon-based and non-carbon-based materials, with silicon-based anodes emerging as a key focus due to their high theoretical capacity and fast charging capabilities [18][21]. - The theoretical capacity of silicon-based materials is significantly higher than that of traditional graphite, reaching up to 4200 mAh/g, which is over ten times that of graphite [22][25]. 2. New Battery Promotion Accelerating Demand - The application of silicon-based anodes is expanding into the power battery sector, with major automotive manufacturers like Tesla and BYD integrating these materials into new models [29][30]. - The compatibility of silicon-based anodes with solid-state batteries is highlighted, as they are expected to meet the high energy density requirements of next-generation batteries [32][33]. 3. Approaching Industrialization Turning Point - CVD technology is recognized as a breakthrough in the production of silicon-carbon anodes, effectively addressing issues such as volume expansion and enhancing overall stability [44][45]. - Over 30 companies are competing in the silicon-based anode market, with leading firms like BETTERRY and PULITECH making significant advancements in CVD technology [46][47]. 4. Beneficiaries in the Silicon-based Anode Supply Chain - The report outlines the key players in the silicon-based anode supply chain, emphasizing the importance of companies that can leverage CVD technology and lead in production capabilities [48].