HIGH performing uLtrA-durable membraNe electroDe assEmblies for tRucks (HIGHLANDER)

HIGHLANDER的目标是开发用于重型车辆（HDV）的膜电极组件（MEA），具有破坏性的新型组件，目标是电池组成本和尺寸，耐用性和燃油效率。该项目将根据重型相关加速应力测试和负载分布测试方案，在电池和短电池组水平设计、制造和验证HDV MEA。HIGHLANDER的独特方法是开发串联的核心燃料电池组件，确保其最大的兼容性和最低的界面电阻：离聚物和增强物，催化剂和催化剂载体，催化剂层成分和性能梯度与双极板流场几何形状相协调。材料筛选工作将得到改进的预测降解模型的开发和使用的支持，该模型将反应位点的尺度连接到细胞水平。模型参数化是使用实验表征数据在材料，组件和细胞水平。Highlander汇集了欧洲燃料电池材料和组件生产商的供应链以及OEM堆栈开发商，使这种方法成为可能。Highlander的目标是通过改进催化剂涂层膜的性能和开发一种新的、成本更低的单层气体扩散层来显著降低烟囱成本和燃料消耗。它的目标是在0.3 g Pt/kW或更低的情况下实现0.65 V时1.2 W/cm²的性能目标，满足20，000 h的寿命目标。可持续性考虑因素包括HDV MEA应用无氟膜的基准测试以及循环经济背景下铂的再利用。

The objective of HIGHLANDER is to develop membrane electrode assemblies (MEAs) for heavy-duty vehicles (HDV) with disruptive, novel components, targeting stack cost and size, durability, and fuel efficiency. The project will design, fabricate, and validate the HDV MEAs at cell and short stack level against heavy-duty relevant accelerated stress test and load profile test protocols. The unique approach of HIGHLANDER is to develop core fuel cell components in tandem, ensuring their greatest compatibility and lowest interface resistance: ionomer and reinforcement, catalyst and catalyst support, catalyst layer composition and property gradient in tune with the bipolar plate flow-field geometry. Materials screening efforts will be supported by the development and use of improved predictive degradation models bridging scales from reaction sites to cell level. Model parameterisation is implemented using experimental characterisation data at materials, component, and cell level. HIGHLANDER brings together a European supply chain of fuel cell materials and components producers and an OEM stack developer that makes this approach possible. HIGHLANDER aims to bring about a significant reduction in stack cost and fuel consumption through improvement of catalyst coated membrane performance and development of a new, lower cost single-layer gas diffusion layer. It will aim to achieve the 1.2 W/cm² at 0.65 V performance target at 0.3 g Pt/kW or below, meeting a lifetime target of 20,000 h. Sustainability considerations include benchmarking of fluorine-free membranes for HDV MEA application and re-use of platinum in the context of a circular economy.