应对绿电波动与频繁启停：碱性电解槽电极的耐久性挑战与材料答案

Core Viewpoint - The article emphasizes the importance of electrode materials in alkaline water electrolysis for hydrogen production, highlighting the need for high performance, durability, and cost-effectiveness to achieve large-scale commercialization [2][10]. Group 1: Electrode Material Challenges - Alkaline electrolyzers have significant cost advantages in hydrogen production, but their electrode materials face inherent engineering challenges when dealing with fluctuating green electricity inputs [4]. - High-performance catalytic coatings often conflict with mechanical strength and long-term stability, leading to performance degradation due to factors like polarization current shocks and impurity adsorption [4][5]. Group 2: Development and Innovation - The development of electrodes requires balancing multiple dimensions such as activity, stability, durability, and resistance to operational fluctuations [5]. - The company has invested over 20 million yuan in a specialized R&D team of about 20 people, establishing a complete laboratory and pilot testing base to innovate electrode materials [5][6]. - Innovative coating catalyst designs and precise preparation processes are employed to decouple electrode performance from harsh green electricity operating conditions [5][6]. Group 3: Performance Enhancements - The company has significantly increased the specific surface area of catalytic layers by tens to hundreds of times, enhancing reaction activity while ensuring structural integrity under high current densities [5][6]. - The coatings exhibit excellent performance with a current decay rate of less than 2μV/h and maintain stability in high-temperature, high-pressure alkaline environments for up to four months [5][6]. Group 4: Addressing Operational Issues - The electrode materials are designed to withstand up to 4500 start-stop cycles and over 200 large current reverse shocks with minimal degradation, addressing the challenges of polarization current corrosion [6][7]. - New electrode designs show significantly lower impurity adsorption compared to traditional nickel electrodes, preventing performance degradation due to impurity accumulation [6][7]. Group 5: Production and Product Matrix - The company has established a diversified mass production process platform, including plasma thermal spraying and vacuum plasma spraying, ensuring high repeatability in product performance [6][7]. - A product matrix has been developed to meet various application scenarios, including the BSL-5.0 nickel electrode for mainstream large-scale green hydrogen projects, which has achieved over 1GW in shipments [7][9]. Group 6: System Integration and Innovation - Innovations extend to system integration, with the development of elastic integrated electrode structures and modular components that enhance assembly efficiency and reduce installation costs [9][10]. - The modular approach addresses long-standing engineering challenges, ensuring the reliable operation of electrolyzers by preventing membrane displacement and wear [9][10]. Group 7: Industry Recognition - The company received the "2025 TrendBank Future Award" for its systematic innovations in alkaline electrolyzer electrode materials and its high-performance product matrix, demonstrating over 1GW of market validation [12].