Learn about the forming of hydrogen fuel cell bipolar plates from an experienced engineer in the hydrogen economy. Bipolar plates are made of thin metal sheets, such as stainless steel or titanium, that are welded together and then coated in PVD or carbon based coating. To ensure the highest level of accuracy and quality, the plates are formed using a multi-stage process, which includes laser welding. Finally, the plates are tested, assembled and stacked together to form a hydrogen fuel cell. The efficiency of the fuel cell is largely determined by the accuracy of the bipolar plates and the contact area between them. Companies like CellForm are continually working to reduce the cost of production and improve accuracy to make hydrogen fuel cells more accessible.
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Jump right into the discussion topics:
0:00 Hyfindr Tech Talk
0:25 Welcome, Simon Brugger
0:35 What did you bring?
1:20 Where would you find bipolar plates in the system?
1:41 Cross-section of the bipolar plates
3:02 Functionality and working of bipolar plates
5:13 Required parameters for bipolar plates on the market
6:40 How does bipolar plates affect the efficiency of fuel cell systems?
7:47 Manufacturing of bipolar plates/Forming of bipolar plates
9:50 Quality assurance of bipolar plates and flow field of the bipolar plates
11:27 Welding of bipolar plates
14:00 What are the challenges of bipolar plates forming?
16:10 Assembly of bipolar plates and fuel cell stackings
17:01 Disruptions in the welding of bipolar plates
18:17 Thank you
18:41 Like & Subscribe
Executive Summary of Tech Talk Script:
Hyfindr Tech Talks is a video series focusing on understanding the technology that makes the hydrogen economy work. In this episode, Steven had the pleasure of interviewing Simon Brugger, the CEO of CellForm, a chemist and an expert in metal forming. Simon brought with him metallic bipolar plates for fuel cells and electrolysers. Bipolar plates are one of the main components of a fuel cell stack and electrolyser stack, and hundreds of them are needed for each fuel cell. The plates for electrolysers are much larger, up to two meters in length. Bipolar plates are responsible for the distribution of gases (hydrogen on the anode side and oxygen on the cathode side) and cooling, and they also provide the channels for the protons (H+) to pass through the membrane. The plates are made of thin metal sheets, usually stainless steel or titanium, which are welded together and coated with PVD or carbon-based coating. The plates must be highly conductive to electricity and must have a very thin thickness (50-75 microns). The efficiency of the fuel cell is determined by the accuracy of the channels and the contact area between the plates, as any deviation can cause energy loss. To achieve this accuracy, CellForm uses a multi-stage forming process to form the plates, which allows for more design freedom and higher accuracy levels (less than 10 microns). The customers care about the quality, price, and efficiency of the bipolar plates, as the price of the fuel cell is largely determined by the plates. To reduce the price, companies need to focus on making the production process as efficient as possible, which includes laser welding, leak testing, and 3D deep measuring. Overall, bipolar plates are a crucial component of fuel cells and electrolysers, and their quality and accuracy are essential for the efficiency of the fuel cell.
Products shown:
Metallic Bipolar Plates - hyfindr.com/marketplace/compo...
Store:
CellForm Hydrogen GmbH & Co. KG - hyfindr.com/store/cellform/
Product categories:
Fuel Cell Plates - hyfindr.com/product-category/...
Interview partner: Simon Brugger (CellForm Hydrogen GmbH & Co. KG - hyfindr.com/store/cellform/)
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In this Tech Talk following topics are addressed: bipolar plates fuel cells, fuel cell plates, fuel cell stacks, bipolar plates manufacturing, bipolar plates forming, bipolar plate channels, MEA, welding of bipolar plate, working of fuel cell plate, working of bipolar plate, hydrogen fuel cell bipolar plate forming, tech, engineering, hydrogen cooling, and metal forming