A method and system for predicting the lifetime of a metal bipolar plate coating
By introducing high-potential pulses and electrochemical offline acceleration coefficients into the electrochemical testing of metal bipolar plate coatings for fuel cells, the problem of inaccurate coating lifetime prediction in traditional testing methods is solved, achieving accurate lifetime prediction that matches real operating conditions and improving testing efficiency and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 山东国创燃料电池技术创新中心有限公司
- Filing Date
- 2026-01-13
- Publication Date
- 2026-06-05
AI Technical Summary
Traditional single constant potential test cannot accurately reflect the failure behavior and lifespan of fuel cell metal bipolar plate coating under dynamic operating conditions, and cannot match the actual use, resulting in inaccurate prediction results.
A bench test-based method was used to acquire time-voltage data of the fuel cell stack. High-potential pulse generation was introduced to enhance the test conditions. Combined with electrochemical testing, the coating lifetime was estimated by the electrochemical offline acceleration coefficient, simulating the complex stress environment in real fuel cell stack conditions.
It achieves accurate and reliable prediction of coating life, ensuring a high degree of consistency between laboratory test results and bench test results, improving the accuracy and reliability of prediction, and inducing the same failure characteristics as long-term bench tests in a short period of time.
Smart Images
Figure CN122150101A_ABST