Snam has filed a patent for an electrode designed for alkaline electrolysis processes. The electrode includes a metal substrate, a catalytic layer with nickel and nickel oxide, and an active composition with various metal compounds. The innovation aims to enhance efficiency in alkaline water electrolysis. GlobalData’s report on Snam gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Snam, Power-to-gas system was a key innovation area identified from patents. Snam's grant share as of January 2024 was 55%. Grant share is based on the ratio of number of grants to total number of patents.
Electrode for alkaline electrolysis process with specific metal compounds
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The patent application (Publication Number: US20240035179A1) discloses an electrode designed for use in an alkaline electrolysis process. The electrode comprises a metal substrate, a catalytic layer with nickel and nickel oxide, and an active composition containing various metal compounds such as cobalt, iridium, rhodium, iron, platinum, lithium, and manganese. The catalytic layer has a porosity of less than 1 m2/g, and the electrode's double layer capacitance falls within the range of 1.0 to 10.0 mF/g when normalized by the loading of the catalytic layer.
Furthermore, the patent application details a method for forming the electrode, involving the creation of a catalytic layer on a metal substrate through processes like thermal spraying, laser cladding, or electroplating. The active composition is then applied to the catalytic layer using precursor compositions that are heated to form the final composition. The method emphasizes the use of metal compounds like cobalt, iridium, rhodium, iron, platinum, lithium, and manganese in the active composition, with specific mole percentages for cobalt and iridium compounds. The application also includes the construction of an alkaline water electrolysis unit incorporating the electrode as an anode, along with a cathode and a chlorine-free electrolyte solution. Overall, the patent application showcases a novel electrode design and manufacturing method tailored for efficient alkaline electrolysis processes.
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