Decarbonisation Technology February 2026 Issue

A bundle of 1,200 cells will provide sufficient electrolyser capacity to convert 1MW of input power to hydrogen. The tubes and manifolds to create this stack configuration leverage equipment that has been in use for decades on reverse osmosis and

H supply

DC power output

Pressure control valve

Cooling jacket

Humidier & heat recovery

Air

H fuel gas

Air containing O

Vacuum pump

Blower

Bipolar plate with ow eld

HO and oxygen- depleted air

Excess H

Vent

Humidifier

ultra-filtration units in water purification applications. Moreover, cheaper

Gas diusion layer Chiral electron spin control nano-coating Platinum anode catalyst

Gas diusion layer Chiral electron spin control nano-coating Platinum cathode catalyst

Proton exchange membrane

membrane fabrication methods compared to traditional membrane casting processes, as well as the design of the C-Cell that enables manufacturability and ease of assembly, reduce Capex substantially. Relevance for a range of technologies The Chiral Energy spin-selective nano-coating is equally relevant to PEM, pressurised alkaline, and low-pressure advanced alkaline systems. It can operate comfortably at all electrolyser temperatures, from the lower end of the range at 60°C for PEM systems to the upper end at 90°C for alkaline electrolysers. It is also unaffected by the highly alkaline electrolyte in alkaline electrolyser stacks (see Figure 5 ). Furthermore, it can support current densities that are commercially relevant to all systems, including the higher current densities observed in advanced alkaline electrolysers and the most modern PEM systems.

Radiator

Hydrogen Oxygen

Water H ion +

Cooling water pump

Fan

Figure 6 PEM fuel cell with chiral-coated electrodes

structural integrity of the stack and the required pressure testing to achieve safety certification. Electrochemical applications beyond electrolysis Both companies technologies span beyond electrolysis. The CRT C-Cell can be leveraged to produce highly durable AEM and PEM membranes. CRT has already proven that the base structure can be used to support Nafion, a popular PEM electrolyser membrane polymer. Furthermore, the C-Cell can be adapted for use in PEM fuel cells with a novel tubular geometry. Due to its unique membrane structure, use cases for the C-Cell extend beyond hydrogen electrolysers and fuel cells. It also has potential to be used in RedOx flow batteries and CO2 recycling via carbonate electrolysis, which can convert CO2 into e-fuels and renewable chemicals. Through a deep understanding of how the CISS effect works, Chiral Energy has applied it to many electrochemical processes that will be central to electrification and decarbonisation. It is a foundation technology to enhance many types of electrical and electrochemical equipment, such as fuel cells (see Figure 6 ) and batteries, as well as hydrogen electrolysers.

Many PEM and pressurised alkaline systems operate in the range of 15 to 35 barg. The Chiral Energy electron spin filtration nano-coating can operate under these conditions and therefore has relevance to a wide range of industrial electrolysers. At present, the C-Cell is operated at 5 barg in CRT’s development environment. This pressure can potentially be increased to the industry-standard pressurised alkaline electrolyser operating pressure of 15 barg. There is no electrochemical limitation on the operating pressure. The limit is governed by the

Stephen B Harrison sbh@sbh4.de