Cipher Neutron reports 94% AEM electrolyser stack efficiency

Cipher Neutron’s (CN) has reported a 94.36% efficiency of its anion exchange membrane (AEM) electrolyser stack as the Canadian firm targets significant green hydrogen cost reductions.

Tested under “industry standard analysis”, the AEM system required 41.754kWh to produce 1kg of hydrogen, compared to the 50kWh needed by existing electrolysers.

With less energy required, operating costs are decreased; advanced efficiency allows for lower maintenance costs and longer operational life; enhanced productivity means more hydrogen is produced per unit; and its scalability means it’s more feasible to scale-up large volume hydrogen production, the firm claims.

CN said flow fields design to ensure optimum flow of electrolyte within the system; proprietary ink recipe and coating mechanism to enhance performance and durability of components; advanced cell compression techniques to improve efficiency; and zero-gap cell technology, all contributed to the results.

The electrolysers are also PFAS-free, eliminating the persistent environment pollutants. Start-up company Ecolectro also achieved a breakthrough in its PFAS-free AEM electrolysers, demonstrating cell efficiencies of more than 74%.

Read more: Ecolectro reaches efficiency milestone in PFAS-free AEM electrolysers

Ranny Dhillon, Chief Scientific Officer of CN, said, “Our team’s dedication to pushing the boundaries of technology has led to this significant breakthrough. We are excited about the potential impact this will have on the green hydrogen market and our continued commitment to sustainability and innovation.

Earlier this year, the Canadian company received funding from Chilean-based Molymet to develop rhenium-based electrolysis technology. This is hoped to be a more cost-effective alternative.

Read more:Cipher Neutron seeks to develop rhenium-based electrolysis technology


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