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Summary This article proposes an idea of using the multi‐inlet divergent inlet in proton exchange membrane fuel cell (PEMFC) to replenish the reaction gas for the main flow channel. New cathode flow field models such as the divergent flow field and the confluent flow field are developed and analyzed to mitigate some bad influences caused by the linear consumption of the reaction gas. The single layer PEMFC models are developed and simulated by using the ANSYS FLUENT software. Then, the performances and flow characteristics of PEMFC models are compared, and different inlet flow ratios are optimized in the multi‐inlet design scheme. Finally, the results show good improvements of the performance and water removal effect while reducing the pressure drop.

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