Straight-through pore structure porous transmission layer (ST-PTL) has broad application prospects. Hefei Momentum Conservation has technical and production advantages

The straight-through hole structure porous transmission layer (ST-PTL) is a new type of anode porous transmission layer. The advantage of the porous transmission layer with through-hole structure lies in its highly ordered through-hole structure, which can promote gas transmission and diffusion, improve water electrolysis efficiency, reduce energy costs, and enhance the mechanical strength and stability of materials.

The porous transmission layer (PTL) is one of the main components of the PEM electrolytic cell. It has the functions of supporting the electrolytic cell structure, transporting gas and electrolyte, conducting electricity, and conducting heat. At present, the porous transmission layer materials of PEM electrolytic cells mainly include carbon-based materials (cathode) such as carbon paper and carbon cloth, and titanium-based materials (anode) such as titanium mesh and titanium fiber sintered felt (titanium felt).

Titanium fiber sintered felt has the characteristics of high porosity and simple production process. It is currently the mainstream material for the anode porous transmission layer of PEM electrolytic cells. However, titanium fiber sintered felt also has certain shortcomings, such as different surface pore sizes, random distribution of pore structure, large contact surface resistance, and obvious mass transfer loss under high current. The porous transmission layer with a straight-hole structure has pores that are straight up and down, have standard pore sizes, and are in surface contact with the anode catalyst, which solves the problems existing in the existing titanium fiber sintered felt.

According to the “2023-2027 Straight Through Hole Structure Porous Transport Layer (ST-PTL) Industry Market In-depth Research and Investment Prospect Forecast Analysis Report released by the Industrial Research Center》shows that the porous transmission layer with through-hole structure can be prepared by chemical etching, physical vapor deposition and other processes. The porous transmission layer with straight-hole structure can meet the gas transmission requirements of proton exchange membrane (PEM) electrolyzers, fuel cells and other equipment. In the future, with the development and improvement of related technologies, porous transmission layers with through-hole structures are expected to be applied in more energy fields.

Hefei Momentum Conservation Green Energy Co., Ltd. (hefei Momentum Conservation for short) has the industry’s first independent intellectual property rights for highly ordered anode through-pore structure porous transmission layer technology. In June 2023, Hefei Momentum Conservation successfully completed the first round of seed round financing, part of which The funds will be used for the research and development and small-scale mass production of highly ordered through-hole structure anode porous transmission layers.

PEM electrolysis of water for hydrogen production has the characteristics of no pollution, high conversion efficiency, and large current density. It is one of the main technical routes for hydrogen production by electrolysis of water at present. Under the background of carbon neutrality and carbon peaking strategies, the hydrogen energy market has attracted increasing attention, and PEM electrolysis of water for hydrogen production will usher in an era of large-scale commercial application. As a new anode porous transmission layer, the through-hole structure porous transmission layer has excellent performance and broad application prospects in the future.

Industry analysts said that compared with titanium fiber sintered felt, the straight-hole structure porous transmission layer has low mass transfer resistance and good contact surface. It has the advantages of low resistance, standard hole size, and short fluid passage path. Under the background of carbon neutrality and carbon peaking, the commercialization process of hydrogen production by PEM electrolysis of water will be accelerated, and the porous transmission layer with straight-hole structure has broad application prospects. Hefei Momentum Conservation has significant advantages in technology research and development, production and marketing in terms of highly ordered through-hole structure porous transmission layers, and may be given priority to enjoy market dividends in the future.