Anion exchange membrane fuel cells (AEMFCs) offer several potential advantages over proton exchange membrane fuel cells (PEMFCs), most notably to overcome the cost barrier that has slowed the growth and large scale implementation of fuel cells for transportation. However, limitations in performance have held back AEMFCs, specifically in the areas of stability, carbonation, and maximum achievable current and power densities. In order for AEMFCs to contend with PEMFCs for market viability, it is necessary to realize a competitive cell performance. This work demonstrates a new benchmark for a H₂/O₂ AEMFC with a peak power density of 1.4 W cm⁻² at 60 °C. This was accomplished by taking a more precise look at balancing necessary membrane hydration while preventing electrode flooding, which somewhat surprisingly can occur both at the anode and the cathode. Specifically, radiation-grafted ETFE-based anion exchange membranes and anion exchange ionomer powder, functionalized with benchmark benzyltrimethylammonium groups, were utilized to examine the effects of the following parameters on AEMFC performance: feed gas flow rate, the use of hydrophobic vs. hydrophilic gas diffusion layers, and gas feed dew points.

阴离子交换膜燃料电池（AEMFC）与质子交换膜燃料电池（PEMFC）相比具有几个潜在的优势，最显着的是克服了降低运输燃料电池的增长和大规模实施的成本壁垒。但是，性能的限制阻碍了AEMFC，特别是在稳定性，碳酸化以及最大可达到的电流和功率密度方面。为了使AEMFC与PEMFC竞争以具有市场可行性，必须实现具有竞争力的电池性能。这项工作证明了H ₂ / O ₂ AEMFC的新基准，其峰值功率密度为1.4 W cm ^-2在60°C下。这是通过更精确地考虑平衡必要的膜水化同时防止电极溢流来实现的，这在阳极和阴极上都可能会令人惊讶地发生。具体来说，使用辐射接枝的基于ETFE的阴离子交换膜和阴离子交换离聚物粉末，将其与基准苄基三甲基铵基团官能化，以检查以下参数对AEMFC性能的影响：进料气体流速，疏水性与亲水性气体的使用扩散层和气体进料露点。