质子交换膜燃料电池是氢能高效利用的重要技术手段。综合运用专利计量、技术成熟度S曲线的方法，量化分析质子交换膜燃料电池技术的专利数量年度变化、主要专利权人、主要技术方向以及技术成熟度等级。研究表明，质子交换膜燃料电池技术的专利数量呈现先增后降的趋势，日本、美国、韩国、英国企业是主要专利权人，目前技术处于早期商业化推广应用阶段，催化剂、质子交换膜、双极板、气体扩散层等关键材料与部件是主要研究方向，也是降低质子交换膜燃料电池成本、提升性能的重点。

Proton exchange membrane fuel cell (PEMFC) is an important technique for efficient utilization of hydrogen energy.Annual change of the number of patents, main patentee, main technology direction and technology maturity level of PEMFC technology are quantitatively analyzed by comprehensively using patent measurement and technology maturity S-curve methods.Studies show that the number of patents for PEMFC increases first and decreases then.Japan, the United States, South Korea, UK companies are main patentee.PEMFC technology stays currently in the early stage of commercialization and application, and main research directions include key materials and components, such as catalyst, proton exchange membrane, bipolar plate and gas diffusion layer, which are also the key points to reduce the production cost of PEMFC and improve its performance.