Trends in electrolysers for hydrogen production

From 2005 to 2020, 10 894 patent families related to the electrolysis of water were published worldwide, with an average annual increase of 18%. In 2016, the number of patent families related to water electrolysis surpassed the number of patents related to solid or liquid coal- and oil-based hydrogen sources. By 2020, it was double that number. Patent applications from China totalled 6, 383 patent families, followed by Japan, Korea, United States, Germany and France. The more stringent definition of international patent families confirmed that 97% of the Chinese filings serve only to protect the domestic market. TOSHIBA (JP), CEA […]

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