Abstract
The durability and lifetime of the proton exchange membrane water electrolysis (PEMWE) is directly affected by local current distribution (LCD). Uniform LCD indicates uniform electrochemical reaction and vice versa. LCD might be affected by the mechanical properties of the bipolar plate (BP) such as the elasticity and bristliness. In this work, the LCD is measured at the cathode side using S segmented plate with 100 segments over the 50 cm active area. To study the effect of BP mechanical properties on LCD of the PEMWE, graphite and titanium BPs materials are used in this work. The titanium BP has shown a non-uniform LCD at higher clamping torque (CT), and a uniform LCD at lower one. Meanwhile, the graphite BP has shown a uniform LCD at higher CT and less uniform LCD at lower CT. Also, it is concluded that higher PEMWE cell performance not necessary means more uniform LCD.
Original language | English |
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Journal | ECS Transactions |
Volume | 86 |
Issue number | 13 |
Pages (from-to) | 683-693 |
Number of pages | 11 |
ISSN | 1938-6737 |
DOIs | |
Publication status | Published - 2018 |
Event | ECS and SMEQ Joint International Meeting - The Moon Palace Resort, Cancun, Mexico Duration: 30 Sept 2018 → 4 Oct 2018 https://www.electrochem.org/aimes2018 |
Conference
Conference | ECS and SMEQ Joint International Meeting |
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Location | The Moon Palace Resort |
Country/Territory | Mexico |
City | Cancun |
Period | 30/09/2018 → 04/10/2018 |
Internet address |
Keywords
- Proton exchange membrane water electrolyzer
- Bipolar plate materials
- Current distribution