Advanced High Pressure and Cost-Effective PEM Water Electrolysis Technology

与下游气体压缩相比，直接从电解水分解中生产高压氢气可以节省相关数量的能源。本项目的目的是开发一种新型的聚合物电解质膜(PEM)电解槽，能够在很高的压力(200bar)下产生氢气，从而降低压缩后的能耗。另一个目标是开发一种经济高效的技术，使PEM电解槽能够实现大规模应用。通过最大限度地减少关键原材料、开发廉价的涂层双极板并在高生产率下运行电解槽，同时确保高效率(约80%vs.HHV)和安全运行，显著降低了资本成本。ADVANCEPEM的目标是在材料、电堆和系统层面开发一套突破性的解决方案，将基本负载的氢气压力提高到200bar，电流密度提高到5A cm-2，同时保持额定能耗&lt；50kWh/kg H2。增强的Aquivion®聚合物膜具有更高的导电性、更高的玻璃化转变温度和更高的结晶度，能够承受较高的压差。方法是在90-120°C的高温高压下运行创新的膜，以提高能效。为了缓解氢向阳极的渗透和相关的安全问题，膜和阳极结构中都集成了高效的复合催化剂。这项新技术在工业环境下通过演示一台额定功率为50kW的高压电解槽进行了验证，该高压电解槽的氢气日产量约为24公斤。该项目将进行技术经济分析，以评估电解槽CAPEX和OPEX的削减。该联合体包括一家电解槽制造商、一家膜和催化剂供应商、一家MEA开发商和一家演示该系统的最终用户。

Direct production of highly pressurised hydrogen from electrolytic water splitting can allow saving relevant amounts of energy compared to down-stream gas compression. The aim of this project is to develop a novel polymer electrolyte membrane (PEM) electrolyser able to produce hydrogen at very high pressure (200 bar) thus reducing the post-compression energy consumption. Another goal is to develop a cost-effective technology allowing to achieve large-scale application of PEM electrolysers. A significant reduction of capital costs is achieved by critical raw materials minimisation, developing cheap coated bipolar plates and operating the electrolyser at a high production rate while assuring high efficiency (about 80% vs. HHV) and safe operation. ADVANCEPEM aims at developing a set of breakthrough solutions at materials, stack and system levels to increase hydrogen pressure to 200 bar and current density to 5 A cm-2 for the base load, while keeping the nominal energy consumption <50 kWh/kg H2. Reinforced Aquivion® polymer membranes with enhanced conductivity, high glass transition temperature and increased crystallinity, able to withstand high differential pressures, are developed for this application. The approach is to operate the innovative membrane at high temperature 90-120 °C under high pressure to allow increasing energy efficiency. To mitigate hydrogen permeation to the anode and related safety issues, efficient recombination catalysts are integrated both in the membrane and anode structure. The new technology is validated by demonstrating a high-pressure electrolyser of 50 kW nominal capacity with a production rate of about 24 kg H2/day in an industrial environment. The project will deliver a techno-economic analysis to assess reduction of the electrolyser CAPEX and OPEX. The consortium comprises an electrolyser manufacturer, membrane and catalyst supplier, an MEA developer and an end-user for demonstrating the system.