We demonstrate an enhanced new architecture for fuel cell membrane electrode assemblies (MEAs), by deposition of the microporous layer (MPL) directly on the catalyst coated membrane (CCM), in order to reduce any gaps at the cathode catalyst layer (CCL) surface. A low bonding temperature Teflon was used to allow low temperature sintering of the CCM with the MPL. This modified structure enhances PEMFC performance by improving the electronic contact and minimizing water pooling at the CCL|MPL interface. The improvement in water management at the CCL|MPL is beneficial especially for thinner CCLs to fulfill the performance demand with low cathode catalyst loading MEAs (≤0.125 mg_Pt cm⁻² as targeted by the US Department of Energy).

中文翻译：

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新的CCL | MPL架构可减少界面间隙并增强PEM燃料电池性能

我们通过直接在催化剂涂层膜（CCM）上沉积微孔层（MPL）来展示燃料电池膜电极组件（MEA）的增强型新架构，以减少阴极催化剂层（CCL）表面的任何间隙。使用低粘结温度的特氟隆以允许CCM与MPL的低温烧结。这种改进的结构通过改善电子接触并最小化CCL | MPL接口处的积水来增强PEMFC性能。CCL | MPL处水管理的改善特别有利于较薄的CCL满足低阴极催化剂负载MEAs（美国能源部目标为≤0.125mg _Pt cm ^-2）的性能要求。