{"id":2108,"date":"2023-03-17T13:20:23","date_gmt":"2023-03-17T04:20:23","guid":{"rendered":"http:\/\/ctiweb.co.jp\/con\/en\/?p=2108"},"modified":"2023-03-17T13:20:23","modified_gmt":"2023-03-17T04:20:23","slug":"teijin-develops-industrys-thinnest-level-gas-diffusion-layer-for-smaller-and-more-functional-fuel-cells","status":"publish","type":"post","link":"https:\/\/ctiweb.co.jp\/con\/en\/teijin-develops-industrys-thinnest-level-gas-diffusion-layer-for-smaller-and-more-functional-fuel-cells","title":{"rendered":"Teijin Develops Industry's Thinnest Level Gas-diffusion Layer for Smaller and More Functional Fuel Cells"},"content":{"rendered":"\n
\"\"
Cross section of Teijin\u2019s new GDL<\/figcaption><\/figure><\/div>\n\n\n\n

Tokyo, Japan, March 13, 2023 --- Teijin Limited<\/a><\/strong> announced that it has developed a gas-diffusion layer (GDL) with a thickness of just 50 micrometers, the industry\u2019s thinnest level, by combining the company\u2019s ultra-fine fibrous carbon and para-aramid fiber using proprietary papermaking technology. Teijin expects its new GDL to contribute to the realization of smaller, more functional and lower cost fuel cells, the demand for which is expanding. The GDL is a component used inside a fuel cell to supply hydrogen and oxygen, collect electrons generated by the chemical reaction of the electrodes, and drain water generated in the process. The GDL's microporous structure incorporates Teijin\u2019s PotenCia\u00ae fine carbon fiber and Twaron\u00ae para-aramid fiber, which are combined in a manufacturing process that has been sped up by deploying proprietary paper-making technology. PotenCia\u00ae enables the new GDL to achieve excellent conductivity without damaging the catalyst layer inside the fuel cell while Twaron\u00ae contributes to high durability and water repellency. As a result, a conventional microporous layer (MPL) is not required, allowing the new GDL to be slimmed down to 50 micrometers, which is less than half the thickness of a conventional GDL. The new GDL is also expected to reduce production costs by shortening the manufacturing process as well as reducing the number of raw materials required. <\/p>\n\n\n\n

\"\"
Manufacturing conventional GDL (above) and new GDL <\/figcaption><\/figure><\/div>\n\n\n\n

\n\nTeijin is now verifying the GDL's gas diffusion and thermal conductivity, both\nindispensable for high performance, and also its contribution to reduced environmental\nimpact. Concurrently, Teijin plans to develop new materials that could use the GDL, such\nas electrode films, in partnership with other companies that share Teijin's vision for\nachieving smaller and more functional fuel cells.\nTeijin leveraged its extensive experience with fiber-processing technology to develop\nPotenCia\u00ae\n, an ultrafine fibrous carbon featuring long fibers and high crystallinity. To take\nadvantage of the carbon's thermal conductivity and other special properties, Teijin\n50\u03bcm\nCross section of Teijin\u2019s new GDL Manufacturing conventional GDL (above) and new GDL\nfocused on the possibility to realizing an extra-thin GDL for fuel cells. GDLs usually\ncomprise a conductive fiber sheet made of durable carbon, which is combined with a\nwater-repellent MPL that prevents the accumulation of water but increases the GDL's\nthickness, thereby lowering the fuel cell's power performance while adding to the\nmanufacturing cost.\nThe new GDL will be showcased (Booth 1-40) at the FC Expo, which will take place at\nTokyo Big Sight from March 15 to 17.\nGoing forward, Teijin expects to strengthen its development of high-performance\nmaterials and solutions for advanced fuel cell products under the company's long-term\nvision of becoming a company that supports the society of the future.\n\n<\/p>\n","protected":false},"excerpt":{"rendered":"

Tokyo, Japan, March 13, 2023 --- Teijin Limited announced that it has developed a gas-diffusion layer (GDL) with a thickness of just 50 micrometers, the industry\u2019s thinnest level, by combining the company\u2019s ultra-fine fibrous carbon and para-aramid fiber using proprietary papermaking technology. Teijin expects its new GDL to contribute to the realization of smaller, more functional and lower cost fuel cells, the demand for which is expanding. The GDL is a component used inside a fuel cell to supply hydrogen and oxygen, collect electrons generated by the chemical reaction of the electrodes, and drain water generated in the process. The GDL's microporous structure incorporates Teijin\u2019s PotenCia\u00ae fine carbon fiber and … Continue reading \"Teijin Develops Industry's Thinnest Level Gas-diffusion Layer for Smaller and More Functional Fuel Cells\"<\/span><\/a><\/p>\n","protected":false},"author":3,"featured_media":2109,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[4],"tags":[10],"_links":{"self":[{"href":"https:\/\/ctiweb.co.jp\/con\/en\/wp-json\/wp\/v2\/posts\/2108"}],"collection":[{"href":"https:\/\/ctiweb.co.jp\/con\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ctiweb.co.jp\/con\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ctiweb.co.jp\/con\/en\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/ctiweb.co.jp\/con\/en\/wp-json\/wp\/v2\/comments?post=2108"}],"version-history":[{"count":1,"href":"https:\/\/ctiweb.co.jp\/con\/en\/wp-json\/wp\/v2\/posts\/2108\/revisions"}],"predecessor-version":[{"id":2111,"href":"https:\/\/ctiweb.co.jp\/con\/en\/wp-json\/wp\/v2\/posts\/2108\/revisions\/2111"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ctiweb.co.jp\/con\/en\/wp-json\/wp\/v2\/media\/2109"}],"wp:attachment":[{"href":"https:\/\/ctiweb.co.jp\/con\/en\/wp-json\/wp\/v2\/media?parent=2108"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ctiweb.co.jp\/con\/en\/wp-json\/wp\/v2\/categories?post=2108"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ctiweb.co.jp\/con\/en\/wp-json\/wp\/v2\/tags?post=2108"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}