Authoritative experiments show Hyproof's enhanced proton exchange membrane outperforms imported ones under atmospheric and pressurized conditions.

A major breakthrough has been achieved in the proton exchange membrane performance comparison experiments jointly conducted by the Dalian Institute of Chemical Physics (DICP) of the Chinese Academy of Sciences, Shanghai Hyproof Technology Co., Ltd. and other institutions. Authoritative experimental data has clearly confirmed that the comprehensive performance of Hyproof's reinforced composite proton exchange membrane (HPM Series) is significantly superior to that of imported traditional homogeneous membranes, demonstrating an overwhelming advantage under both atmospheric and pressurized operating conditions. This provides strong support for the localized upgrading of core materials for green hydrogen production in China.https://doi.org/10.1016/j.cej.2026.173725

Led by a number of authoritative experts in the electrochemical field, the experiments strictly followed international standard testing specifications. Two types of Hyproof composite membranes, HPM-2080-X and HPM-20100-WX, were selected for a comprehensive performance comparison with mainstream imported homogeneous membranes such as N117 and N115. Key tests were conducted on hydrogen permeation, electrochemical performance and safety stability of the membranes, covering common operating conditions in practical applications such as atmospheric pressure, 5 bar and 10 bar pressure differences.

Experimental results show that under atmospheric pressure, Hyproof's composite membranes effectively inhibit hydrogen permeation while ensuring high proton conduction efficiency, with the anode hydrogen content being significantly lower than that of imported homogeneous membranes. Among them, the current density of HPM-2080-X can reach 3.7 A/cm² at 80℃ and 2V voltage, far exceeding the 3.1 A/cm² of the imported N115 membrane; the thicker HPM-20100-WX has a current density close to 4.5 A/cm² with a lower hydrogen permeation rate than the imported thick membrane N117, achieving a dual improvement in efficiency and safety.

The advantages of Hyproof's membranes are even more prominent under harsher pressurized operating conditions. Under the extreme condition of 80℃ and 10 bar pressure difference, the anode hydrogen content of imported homogeneous membranes exceeds the 4% explosion limit even at low current densities, failing to meet the safe operation requirements. In contrast, the anode hydrogen contents of Hyproof's HPM-2080-X and HPM-20100-WX are only 1.44% and 0.98% respectively, far below the 2% safety threshold, and they can stably maintain electrochemical performance, completely addressing the critical pain point of prominent safety hazards of imported membranes under pressurized operating conditions.

It is reported that Hyproof's reinforced proton exchange membrane adopts an innovative composite structure design of "support layer + hydrogen recombination layer", which not only inhibits excessive swelling of the membrane, but also realizes in-situ oxidation of permeated hydrogen through a platinum catalytic layer. Meanwhile, it boasts excellent mechanical strength and thermal stability, breaking the technical bottleneck of "low efficiency for thick membranes and poor safety for thin membranes" of traditional imported homogeneous membranes.

Industry experts stated that the groundbreaking results of this experiment mark that China's composite proton exchange membrane technology has reached the international leading level. The excellent performance of Hancheng's reinforced proton exchange membrane will greatly reduce energy consumption and safety risks in the green hydrogen production process, drive China's proton exchange membrane water electrolysis for hydrogen production industry to break away from reliance on imported core materials, and boost the high-quality development of the hydrogen energy industry.