Sino-Tech Hydrogen has achieved a top-tier academic and industrial milestone, with research on its EHYDRO® AEM-02 Ion-Solvent Membrane (ISM) published in the prestigious journal Nature Energy. Reported by the team of Professor Li Nanwen, the company’s Chief Scientist, this publication represents a high-level global recognition of Sino-Tech Hydrogen’s material innovation and underscores its position at the forefront of the green hydrogen sector.

The EHYDRO® AEM-02 Ion-Solvent Membrane is a non-porous separator categorized within the broader framework of Anion Exchange Membranes (AEM). Unlike standard AEMs, the ion conduction of the ISM does not rely on covalently attached organic cation-hydroxide ion pairs on the polymer matrix, which effectively eliminates the degradation of ionic groups that typically limits standard AEM lifespans. Operating in high-temperature, high-concentration alkaline environments, the controlled swelling of the ISM facilitates electrolyte infiltration, forming a homogeneous polymer-water-KOH ternary electrolyte system that enables rapid ion conduction and low internal resistance. This unique mechanism allows the ISM to combine the cost benefits of traditional Alkaline Water Electrolysis (ALK) with the high gas-purity and efficiency characteristics of Proton Exchange Membrane (PEM) systems.

To maximize the system-level performance of these advanced membranes, Sino-Tech Hydrogen has also developed a matching portfolio of non-precious metal catalytic electrodes. When the EHYDRO® AEM-02 membrane is paired with the company's EHYDRO® Coral II catalytic electrodes, the assembled electrolyzer can achieve a current density of 13,000A/㎡@2V, bringing alkaline electrolysis performance close to that of conventional PEM electrolyzers and offering a highly efficient, commercial-grade solution for the green hydrogen supply chain.

[1] Jensen, J. O. et al. Energy Environ. Sci., 2019, 12, 3313-3318.

[2] Li, N. W. et al. Nature Energy, 2024, doi:10.1038/s41560-023-01447-w.