Core Viewpoint - The lithium battery market is entering a "big explosion" era driven by diverse application scenarios, with significant growth expected in both traditional and emerging sectors over the next decade [1][12]. Industry Overview - The lithium battery industry is projected to enter a TWh-level growth phase, with stable growth in the electric vehicle and energy storage markets, while emerging fields like low-altitude economy and robotics are expected to create a strategic market worth billions [1]. - Structural differentiation in market demand is reshaping the technological evolution path, focusing on energy density and ultra-fast charging in the power sector, while energy storage aims to overcome cycling decay challenges [1][12]. Material Innovation - Material innovation is breaking the boundaries between laboratory and mass production, with advancements such as nickel content in ternary materials exceeding 90%, and silicon-based anode expansion suppression solutions entering mass production verification [3]. - Leading companies are establishing competitive barriers through a rhythm of "pre-research generation, mass production generation, and reserve generation," directly influencing the distribution of market dividends [3][4]. Key Players - **Inlian Composite Fluid**: Recently launched new products aimed at addressing range anxiety, increasing energy density, and developing next-generation solid-state batteries, with plans for significant production line expansions [5][6]. - **Putailai**: This anode material giant is addressing market differentiation with enhanced artificial graphite anodes and improved natural graphite products for energy storage, while also pursuing solid-state battery collaborations [7][8]. - **Weilan New Energy**: Valued at over 15 billion, Weilan is exploring three technical routes for solid-state batteries, achieving significant milestones in energy density and cross-scenario technology migration [9][10]. Strategic Implications - The development trajectories of these companies align with the evolving demands of the lithium battery industry, with Inlian addressing basic material performance, Putailai overcoming system integration bottlenecks, and Weilan exploring ultimate form possibilities [11]. - The progression from material innovation to form revolution is reshaping the technological pyramid of the TWh era, with each breakthrough redefining industry rules [12].

Core Viewpoint - The establishment of the headquarters of Jiangsu Yinglian Composite Current Collector Co., Ltd. marks Yinglian's readiness for large-scale production of composite current collectors [1][3]. Group 1: Company Developments - Jiangsu Yinglian, a subsidiary of Yinglian Co., was established in 2023 to focus on the research, production, and sales of composite current collector products [3]. - The total investment for the lithium battery composite aluminum foil and composite copper foil projects is expected to reach 3.089 billion yuan, with plans to build 10 production lines for composite aluminum foil and 134 for composite copper foil [3]. - As of September 2023, Jiangsu Yinglian has established a strategic partnership with equipment supplier Aifake and has procured 10 production lines for composite aluminum foil, currently operating 5 lines [3]. Group 2: Product Launch and Features - During the opening ceremony, the company held a product launch showcasing over ten types of composite foils designed to address four major trends in the lithium battery industry: alleviating range anxiety, increasing energy density, enhancing fast charging performance, and developing next-generation solid-state batteries [1][7]. - The showcased products include standard specifications such as 6.5-micron thick composite copper foil and 10-micron thick composite aluminum foil, as well as ultra-thin options like 4.5-micron composite copper foil and 6.5-micron composite aluminum foil [7][9]. - Products tailored for solid-state batteries and specific battery requirements were also presented, including high tensile strength composite copper foil and high conductivity composite aluminum foil, which are suitable for high-rate charging and discharging scenarios [9][11][13]. Group 3: Industry Outlook - The company continues to utilize vacuum deposition technology for the production of composite current collectors, introducing vapor-deposited lithium metal anodes, which are promising materials for solid-state batteries [16]. - The composite current collector products have been sampled to downstream customers across various sectors, including consumer batteries, power batteries, and energy storage batteries, with a quicker application in consumer batteries due to lower price sensitivity [16].

证券研究报告 电力设备与新能源 固态电池四：CIBF 催化密集利好产业 华泰研究 2025 年 5 月 14 日│中国内地 动态点评 CIBF2025 第十七届中国国际电池技术交流会/展览会将于 5 月 15 日-17 日 在深圳举行，围绕固态电池/快充/钠电/电池安全/智能装备/关键材料等设立 主题会场，其中固态电池是产品维度唯一有全天论坛的主题。同时本周有较 多锂电公司计划发布新品，我们推测与固态电池关系较大。近期固态电池板 块催化密集，我们继续推荐固态电池产业链。 近期板块催化密集，多企业将发布新品 从 CIBF 固态论坛日程看，关键是围绕电解质技术路线和锂金属展开，其中 硫卤化物出现 4 次，聚合物出现 3 次，氧化物出现 2 次，锂金属出现 2 次， 或可从侧面印证硫卤化物全固态方案仍然是焦点，聚合物在量产放量存在预 期差。从近期产业活动看，行业会议与公司活动在 Q2 比较密集，包括 5 月 15 日星源材质新品发布会，5 月 16 日 CIBF 固态电池论坛、金博股份多孔 碳新品发布会，5 月 16 日-17 日国轩高科发布固态电池新品，相关产品表现 值得期待。 产业链环节关注硅基负极、电解质膜、 ...