{"id":149396,"date":"2024-08-15T07:23:00","date_gmt":"2024-08-15T05:23:00","guid":{"rendered":"https:\/\/renewable-carbon.eu\/news\/?p=149396"},"modified":"2024-08-13T13:29:19","modified_gmt":"2024-08-13T11:29:19","slug":"making-pem-electrolysis-cost-efficient-and-scalable","status":"publish","type":"post","link":"https:\/\/renewable-carbon.eu\/news\/making-pem-electrolysis-cost-efficient-and-scalable\/","title":{"rendered":"Making PEM electrolysis cost-efficient and scalable"},"content":{"rendered":"\n\n
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\"Researchers
Researchers at Fraunhofer UMSICHT and Ruhr University Bochum have discovered that carbon-based bipolar plates have the potential to replace titanium bipolar plates in the electrolysis stack: Carbon-based bipolar plates have the potential to replace titanium bipolar plates in the electrolysis stack. \u00a9 Fraunhofer UMSICHT<\/figcaption><\/figure><\/div>\n\n\n

Proton exchange membrane electrolysis is considered the most promising way to produce green hydrogen. However, it is still not very economical at the moment. One reason: One of its key components \u2013 the bipolar plate \u2013 is usually made of titanium. The metal impresses with its corrosion resistance during electrolysis, but is more expensive than other metals due to its complex extraction and processing. Researchers at the Fraunhofer Institute for Environmental, Safety and Energy Technology UMSICHT and Ruhr University Bochum have discovered that carbon-based bipolar plates can be a more cost-efficient and scalable alternative.<\/strong><\/p>\n\n\n\n

The focus of their investigations was a new carbon-based bipolar plate \u2013 developed and patented by Fraunhofer UMSICHT. It consists of a thermoplastic polymer-bonded carbon matrix with conductive additives such as carbon black and is produced in a powder-to-roll process. The material and production process enable the continuous manufacturing of a bipolar plate that is both easy to process and weld and is already being used commercially in the field of redox flow batteries.<\/p>\n\n\n

\n
\"Currently,
Currently, the cost of stack components is dominated by bipolar plates, as titanium materials often have to be used to ensure corrosion resistance. \u00a9 Fraunhofer UMSICHT<\/figcaption><\/figure><\/div>\n\n\n

The researchers have subjected this bipolar plate and a bipolar plate made of titanium to comprehensive ex-situ and in-situ tests. In the ex-situ tests, they carried out electrochemical corrosion studies, then analyzed the corrosion in scanning electron microscope images and measured the weight loss of the carbon-based bipolar plate to assess its suitability for real applications and the choice of parameters. During the in-situ tests, the bipolar plates were subjected to accelerated ageing tests with alternating current densities between 1 and 3 A cm-2 for over 500 hours.<\/p>\n\n\n\n

The scientists have published their results under the title \u201cBipolar Plates in PEM Water Electrolysis: Bust or Must?\u201d in the journal \u201cAdvanced Energy Materials\u201d. In essence, they have discovered that the carbon-based bipolar plate has an ageing rate in the low \u00b5V h-1 range and thus shows promising performance. This means that it can certainly compete with titanium bipolar plates and represents a much more cost-effective alternative. Another advantage: due to its material properties such as weldability, it enables completely new designs for PEM electrolysers. The potential to replace titanium bipolar plates in the PEM electrolysis stack and make electrolysis scalable at the same time is therefore definitely there. The task now is to further investigate and, if necessary, optimize the new material in order to further reduce the costs of electrolysis and thus make the production of green hydrogen more economical.<\/p>\n\n\n\n

Original publication<\/h3>\n\n\n\n

Leonard Messing, Kevinjeorjios Pellumbi, Lucas Hoof, Niklas Imming, Steffen Wilbers, Lukas Kopietz, Michael Joemann, Anna Grev\u00e9, Kai junge Puring, Ulf-Peter Apfel: Carbon Bipolar Plates in PEM Water Electrolysis: Bust or Must?, in: Advanced Energy Materials. https:\/\/s.fhg.de\/u87<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Proton exchange membrane electrolysis is considered the most promising way to produce green hydrogen. However, it is still not very economical at the moment. One reason: One of its key components \u2013 the bipolar plate \u2013 is usually made of titanium. The metal impresses with its corrosion resistance during electrolysis, but is more expensive than […]<\/p>\n","protected":false},"author":114,"featured_media":149398,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"none","nova_meta_subtitle":"Carbon-based bipolar plates have the potential to replace titanium bipolar plates in the electrolysis stack","footnotes":""},"categories":[5571],"tags":[10744,10416,5817,10743],"supplier":[303],"class_list":["post-149396","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-co2-based","tag-carboncapture","tag-circulareconomy","tag-research","tag-useco2","supplier-fraunhofer-institut-fuer-umwelt-sicherheits-und-energietechnik-umsicht"],"_links":{"self":[{"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/posts\/149396","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/users\/114"}],"replies":[{"embeddable":true,"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/comments?post=149396"}],"version-history":[{"count":0,"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/posts\/149396\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/media\/149398"}],"wp:attachment":[{"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/media?parent=149396"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/categories?post=149396"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/tags?post=149396"},{"taxonomy":"supplier","embeddable":true,"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/supplier?post=149396"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}