Core Viewpoint - The article discusses the advancements and challenges in the development of alkaline water electrolysis membranes, particularly focusing on the transition from second-generation PPS membranes to third-generation composite membranes, which offer significant advantages in performance and stability [3][18]. Summary by Sections Alkaline Water Electrolysis Membranes - Membranes are critical components in alkaline water electrolysis, directly affecting electrolysis efficiency, gas purity, and system safety [3]. - The second-generation PPS membrane remains the mainstream application, while third-generation composite membranes are emerging with benefits such as low resistance, high hydrophilicity, gas tightness, safety, and enhanced mechanical strength [3][4]. Challenges in Composite Membrane Development - The development of composite membranes faces dual bottlenecks in materials and processes, with issues in adaptability and reliability being prominent [3][18]. - Cost and scalability challenges, along with a lack of standard certifications, hinder the growth of composite membranes [3][18]. Key Companies and Innovations - **Liyuan Technology**: A listed company focusing on fuel cell components, has made breakthroughs in third-generation PPS composite membranes and will unveil new products at the 2025 TrendBank Green Hydrogen Industry Conference [5][6]. - **Tongwei New Energy**: Specializes in core membrane materials for hydrogen energy storage, achieving large-scale shipments of composite membranes with excellent electrochemical performance [6][7]. - **Carbon Energy Technology**: Launched the first industrial-scale production line for composite membranes in China and has secured significant funding for expanding production capabilities [8][9]. - **Kewok Technology**: Focuses on high-end membrane materials, producing a series of composite membranes with enhanced performance metrics [13]. - **Huashangxia Geng Hydrogen Energy**: Recently established a production line for large-scale composite membranes, enhancing production capabilities for high-performance electrolysis [14][15]. - **Yuantai Energy Materials**: Aims to provide lifecycle products based on hydrogen membrane and electrode materials, with significant production capacity for composite membranes [16]. - **Zhongke Hydrogen Easy**: Established in 2022, has developed a range of composite membranes and electrodes, collaborating with various well-known electrolyzer companies [17]. Upcoming Events - The 2025 TrendBank Green Hydrogen Industry Conference will be held on August 27-28, 2025, in Wuxi, Jiangsu, focusing on solutions and development plans from domestic composite membrane companies [18].

Core Insights - The Chinese green hydrogen industry is rapidly advancing, with alkaline electrolyzers holding a dominant 90% market share in hydrogen production [2] - The membrane component, crucial for safety and stability, faces challenges in domestic production, with international giants like Agfa and Toray controlling a significant portion of the market [2][3] - The third-generation composite membrane shows promising performance advantages, particularly in handling current fluctuations from renewable energy sources, but its commercialization is hindered by issues in long-term stability and cost control [2][3][4] Industry Challenges - The industry is under pressure from both "import dependency" and "technology gaps," necessitating a comprehensive revolution from raw materials to large-scale production [3] - The ability to break through monopolistic barriers will be critical for the Chinese green hydrogen industry to maintain cost and efficiency [3] Company Developments - Liyuan Technology (688565) is strategically positioning itself in the hydrogen energy core materials sector, preparing to unveil significant technological advancements [3][4] - The company has successfully developed the third-generation PPS composite membrane and is simultaneously advancing the development of compatible alkaline electrolyzers [3][4] - A major product launch event is scheduled for August 27, 2025, in Wuxi, where Liyuan Technology will introduce the third-generation PPS composite membrane and a new square alkaline electrolyzer [4]