Investment Rating - The industry rating is "Outperform the Market" [12] Core Insights - The composite copper foil industry is at a critical point of industrialization, with the product solutions becoming more mature. The industry is expected to penetrate mid-to-low-end demand scenarios in the context of high copper prices [3][4] - The composite copper foil offers advantages such as high cost-effectiveness, safety, and energy density, while facing challenges like high internal resistance and low cycle life. The technology consensus around the two-step method of magnetron sputtering and hydroelectric plating is forming [3] - The industry is projected to have a market space exceeding 100 billion, with significant players like Shengli and Baoming gradually advancing small-batch supply. The demand for lithium batteries is expected to reach approximately 3000 GWh by 2026, with a potential shipment volume of 6 billion square meters for composite copper foil [5] Summary by Sections Industry Dynamics - The national "14th Five-Year Plan" emphasizes accelerating the industrialization of composite conductive fluids, reflecting confidence in material performance and feasibility [3] - The rising costs in battery and vehicle manufacturing due to inflation necessitate cost reduction across all segments, which composite copper foil can address by partially replacing copper foil with plastic base films [4] Investment Recommendations - Future potential catalysts include significant business orders from key participants, financing and expansion by leading players, and large-scale deployment of composite copper foil products. It is recommended to focus on leading participants in composite conductive fluids (Shengli Precision, Baoming Technology) and hydroelectric plating equipment companies (Sanfu Xinke, Dongwei Technology) [5]

Investment Rating - The industry investment rating is "Buy" with a previous rating of "Buy" as well [2]. Core Insights - The relative cost advantage of composite copper foil is becoming increasingly prominent, with accelerated industrialization progress [5]. - The average copper price has risen significantly from less than 50,000 CNY/ton in 2020 to an average of 80,800 CNY/ton in 2025, and has exceeded 100,000 CNY/ton in 2026, highlighting the cost advantages of composite copper foil over traditional battery copper foil [5]. - Companies like Shengli Precision are beginning close collaborations with battery manufacturers, which is expected to drive equipment demand [5]. - The Anmaite composite fluid project is nearing completion, with an investment of approximately 5 billion CNY and a designed annual production capacity of 1 billion square meters of composite fluid materials [5]. - Yinglian Co. has partnered with LG to develop innovative polymer substrates for composite fluids and solid-state batteries, accelerating their entry into the global market [5]. - The report recommends focusing on equipment manufacturers such as Sanfu Xinke and Dongwei Technology, as well as material companies like Shengli Precision and Yinglian Co. due to the low penetration rate and rapid development slope of the composite copper foil industry [5]. Summary by Sections Industry Overview - The composite copper foil industry is experiencing a shift with increasing demand and a focus on equipment capacity as a critical factor for industrialization [5]. Key Companies - Shengli Precision is actively engaging with leading enterprises for product validation and expansion plans [5]. - Anmaite's project aims to meet the production needs of approximately 100 GWh of power, energy storage, and 3C new energy batteries [5]. - Yinglian Co. is collaborating with LG to explore new materials for the battery market [5]. Financial Analysis - The report includes a valuation table for key companies, indicating a "Buy" rating for Jiao Cheng Ultrasonic with a reasonable value of 80.61 CNY per share and projected PE ratios for 2025 and 2026 [6].

Core Viewpoint - The article emphasizes that composite current collectors have transitioned from laboratory research to industrial application, with Yinglian's technology in solid-state batteries providing sustainable momentum for high-quality industry development, becoming a key force in the transition from concept to large-scale application of solid-state batteries [1][10]. Group 1: Structural Reconstruction - The implementation of new national standards for power batteries and the popularization of fast-charging technology have intensified safety performance requirements, highlighting structural defects in traditional current collectors [4]. - Traditional aluminum foil is prone to aluminum-thermal reactions during thermal runaway, leading to significant temperature increases, which are major causes of battery fires and explosions [4]. - The composite current collector's "polymer substrate + metal coating" sandwich structure offers a revolutionary solution to these issues, enhancing safety by preventing electrical arcing and reducing aluminum-thermal reactions [5]. - The polymer substrate's density is only 1/7 to 1/10 that of copper, significantly reducing weight while maintaining conductivity, thus improving energy density [5]. - The metal usage in composite current collectors is only 1/3 to 1/5 of traditional current collectors, allowing for a cost reduction of over 65% compared to traditional materials [5]. Group 2: Precision Control - Despite the advantages of composite current collectors, challenges in high process difficulty and yield control have hindered mass production [7]. - Yinglian has established a comprehensive process system that integrates raw materials, processing, testing, and data systems to overcome mass production bottlenecks [7]. - The company has achieved a production width of 1140mm for composite copper foil with a thickness uniformity control of ≤2%, entering a stable mass production phase [7]. - This breakthrough significantly enhances efficiency and reduces unit costs, ensuring performance consistency for downstream applications [7]. Group 3: Forward-looking Layout - Yinglian is proactively preparing for the next generation of solid-state battery materials while consolidating its advantages in the liquid battery market [8]. - The company is focusing on two core areas: bipolar current collectors and lithium deposition technology, aiming to meet the higher requirements for solid-state battery applications [9]. - The optimization of vacuum deposition and magnetron sputtering technologies is expected to enhance the bonding strength and density of coatings, with a target for mass production capabilities by 2025-2027 [9]. - The lithium deposition technology offers significant advantages, with cycle life improvements exceeding three times that of traditional rolling methods, and a volume change rate of less than 3% [9]. Group 4: Industrial Value - The widespread application of composite current collectors is anticipated to drive a positive cycle of "safety upgrades, energy density improvements, and cost optimization" within the lithium battery industry [13]. - Yinglian has completed a comprehensive layout from technology research and development to mass production, with a total investment of 3.089 billion yuan in a demonstration factory in Jiangsu [10]. - The factory is expected to achieve a production capacity of 500 million square meters of composite copper foil and 200 million square meters of composite aluminum foil by 2025, providing solid support for large-scale supply [10]. - Collaboration with upstream raw material and equipment manufacturers has formed a synergistic industrial ecosystem, enhancing technological precision to a nanometer-level accuracy [12].

Core Viewpoint - The 2025 High-Performance Lithium Battery Annual Conference will focus on the commercialization and industrialization of composite electrolytes, driven by new safety standards for power batteries set to take effect in July 2026 [1][2]. Group 1: Event Details - The 2025 High-Performance Lithium Battery Annual Conference will take place from November 18-20, 2025, at the JW Marriott Hotel in Shenzhen Qianhai [4]. - The event will feature the 15th anniversary celebration and the presentation of the High-Performance Golden Ball Awards [1][8]. Group 2: Industry Trends - The new national standard for power batteries aims to eliminate the risk of electric vehicle fires by imposing strict safety requirements on battery performance [1]. - The yield and production capacity of composite electrolytes are expected to improve significantly in 2025, allowing for large-scale applications under the new safety standards [2]. Group 3: Company Insights - Yinglian Composite Electrolyte is a pioneer in the field, leading the commercialization of composite electrolytes [3]. - By 2027, the shipment of composite copper foil is projected to reach 19.1 billion square meters, with a penetration rate of 39.7% [7]. - Yinglian has established its headquarters in Yangzhou and is planning to set up 10 production lines for composite aluminum foil and 134 production lines for composite copper foil [7].

Core Viewpoint - The strategic cooperation between Jiangsu Yinglian and a well-known cylindrical battery company marks a significant advancement in the composite current collector project, with a total investment of 3.089 billion yuan aimed at enhancing the production capacity of composite aluminum and copper foils for electric vehicle batteries [1] Company Summary - Jiangsu Yinglian has invested in the construction of composite aluminum foil and copper foil projects in Gaoyou City, Jiangsu Province, with an expected annual production capacity of 100 million square meters of composite aluminum foil and 500 million square meters of composite copper foil upon reaching full production [1] - The company has already established five production lines for composite aluminum foil and five for composite copper foil, with products undergoing testing and feedback from downstream clients in the power battery, consumer battery, and energy storage sectors [1] - The collaboration aims to leverage each party's strengths to validate and improve the performance of composite current collector materials, optimizing their application in the industry [1] Industry Summary - The composite current collector industry chain is taking shape, encompassing upstream raw materials and equipment manufacturers, midstream copper foil manufacturers, and downstream clients in power, consumer, and energy storage batteries [3] - The current industry barriers primarily lie in equipment capability and process control, with the "magnetron sputtering + electroplating" two-step method being the most mature and cost-effective technology for producing composite copper foils [3] - The future direction of material technology is expected to evolve towards lighter, thinner, and lower-cost solutions, with companies that can overcome mass production bottlenecks likely to gain a competitive edge [3]

Core Viewpoint - The article discusses the upcoming 2025 High-Performance Lithium Battery Annual Conference and the collaboration between a well-known cylindrical battery company and Jiangsu Yinglian Composite Current Collector Co., Ltd. to enhance the performance of composite current collector materials [2][3][4]. Group 1: Event Details - The 2025 High-Performance Lithium Battery Annual Conference will take place from November 18-20, 2025, at the JW Marriott Hotel in Shenzhen Qianhai [2]. - The event is organized by Gaogong Lithium Battery and Gaogong Industry Research (GGII), with various sponsors including HaiMuxing Laser and Dazhu Lithium Battery [2][3]. Group 2: Collaboration Overview - The partnership aims to integrate resources to improve the performance of composite current collector materials and optimize application solutions [3][4]. - Yinglian Composite Current Collector will provide core raw materials for research and experiments, while the battery company will implement and continuously optimize application solutions [4]. Group 3: Industry Trends - The composite current collector technology has faced challenges in commercialization over the past two to three years, but is now entering a critical development window in 2025 due to policy support and increased attention from the industry [4][5]. - The industry consensus indicates that composite aluminum foil has been gradually ramping up since 2022, and composite copper foil is expected to enter mass production in the second half of 2025 [4]. Group 4: Cost and Yield Improvements - Significant progress has been made in the production cost and yield of composite current collectors, with raw material costs for composite copper foil dropping to approximately 1.25 yuan/m², about one-third of traditional 6μm copper foil [5]. - Current yield rates for leading manufacturers of composite current collectors are around 80%, with some achieving over 95% for 6μm products, potentially leading to a 20% to 30% cost reduction compared to traditional copper foil [5]. Group 5: Policy and Standards Impact - The "Implementation Plan for High-Quality Development of the Copper Industry (2025-2027)" issued by multiple government departments highlights composite copper foil as a key development direction [6]. - New safety standards for electric vehicle batteries, effective from July 1, 2026, will enhance safety performance requirements, making composite current collector materials a crucial option to meet these standards [6][7].

Core Viewpoint - The strategic cooperation agreement between Jiangsu Yinglian and a well-known cylindrical battery company aims to enhance the performance of composite current collector materials for lithium batteries and promote their industrialization [1][2]. Group 1: Strategic Cooperation - Jiangsu Yinglian and the cylindrical battery company will leverage their respective strengths to develop high-performance composite current collector materials and optimize their applications [1][2]. - The collaboration includes joint research and development plans, experimental validation, sharing of samples and technical information, and in-depth discussions of experimental results [2]. Group 2: Company Profiles - Jiangsu Yinglian specializes in the research, production, and sales of composite aluminum and copper foils for lithium batteries, focusing on providing safe and cost-effective key materials [1]. - The cylindrical battery company is a high-tech enterprise deeply engaged in the consumer and power battery sectors [1]. Group 3: Future Implications - The strategic cooperation is expected to enhance the synergy between the upstream and downstream of the battery materials industry chain, fostering a new collaborative development model [2]. - Although the agreement is a framework arrangement and is not anticipated to significantly impact the company's current year performance, it is expected to positively influence future development [2].

Core Viewpoint - Jiangsu Yinglian Composite Fluid Co., Ltd. has signed a strategic cooperation agreement with a well-known cylindrical battery company to enhance the performance of composite fluid battery materials and promote industrialization in this sector [1] Company Summary - Jiangsu Yinglian specializes in the research, production, and sales of composite aluminum and copper foils for lithium batteries used in electric vehicles [1] - The partner company is a high-tech enterprise focused on consumer and power batteries [1] Industry Summary - The collaboration aims to leverage the strengths of both companies to validate and improve the performance of composite fluid battery materials [1] - The joint efforts will focus on the preparation and technical development of high-performance composite fluid materials [1] - The partnership is committed to advancing the industrialization of composite fluid technology [1]

Core Viewpoint - Jiangsu Yinglian Composite Fluid Co., Ltd. has signed a strategic cooperation agreement with a well-known cylindrical battery company to enhance the performance of composite fluid battery materials and promote industrial development [1] Company Summary - Jiangsu Yinglian is a high-tech enterprise focused on the research, production, and sales of composite aluminum foil and composite copper foil for new energy vehicle power lithium batteries [1] - The cylindrical battery company specializes in consumer batteries and power batteries, indicating a strong technological foundation in the battery sector [1] Industry Summary - The collaboration aims to leverage the strengths of both companies to validate and improve the performance of composite fluid battery materials [1] - The partnership is focused on the preparation and technical development of high-performance composite fluid materials, contributing to the industrialization of composite fluid technology [1]

Core Viewpoint - The company, Yinglian Co., Ltd., has a significant focus on the metal products industry, which constitutes 99.92% of its revenue, while the new energy lithium battery sector accounts for only 0.08% of its revenue [1]. Group 1 - Yinglian Co., Ltd. announced a strategic cooperation agreement with a well-known cylindrical battery company to enhance the performance of composite electrolyte materials and optimize their application [3]. - The collaboration aims to develop high-performance composite electrolyte materials and promote the industrialization of composite electrolyte technology [3].