The mass implementation of renewable energy sources is limited by the lack of energy storage solutions operating on various timescales. Electrochemical technologies such as supercapacitors and batteries cannot handle long storage time because of self‐discharge issues. The combination of fuel storage technology and fuel cells is an attractive solution for long storage times. In that context, large‐scale fuel cell solutions are required for massive energy storage in cities, which leads to possible concepts such as low‐cost disposable fully organic membrane assemblies in fuel cells to avoid regeneration of expensive poisoned electrodes. Here, the formation of an organic gas diffusion electrode (GDE) fabricated by paper‐making production, combined with in situ polymerization is demonstrated for the first time. Cellulose is used as a 3D scaffold functionalized with poly(3,4‐ethylenedioxythiophene) (PEDOT) serving as both an electrical conductor and an electrocatalyst of high efficiency for the oxygen reduction reaction. The PEDOT‐cellulose porous GDE is implemented in a membrane assembly and demonstrated in a H₂‐O₂ fuel cell. The demonstration of low‐cost material/manufacturing that is environmentally friendly is a paradigm shift in the development of fuel cells for a sustainable society.

中文翻译：

---

用于一次性燃料电池的PEDOT-纤维素气体扩散电极

可再生能源的大规模实施受到缺乏在各种时间尺度上运行的储能解决方案的限制。由于自放电问题，超级电容器和电池等电化学技术无法长时间存储。燃料存储技术和燃料电池的结合是延长存储时间的有吸引力的解决方案。在这种情况下，城市中大规模储能需要大规模燃料电池解决方案，这导致了可能的构想，例如燃料电池中的低成本一次性完全有机膜组件，以避免昂贵的中毒电极的再生。在此，首次证明了通过造纸生产和原位聚合相结合的有机气体扩散电极（GDE）的形成。纤维素被用作3D支架，并用聚（3,4-乙撑二氧噻吩）（PEDOT）功能化，同时用作氧还原反应的高效电导体和电催化剂。PEDOT-纤维素多孔GDE在膜组件中实现，并在H中演示_2- O ₂燃料电池。证明环保的低成本材料/制造是可持续发展的燃料电池发展的范式转变。