Degradation of High Temperature Polymer Electrolyte Fuel Cell Cathode Material as Affected by Polybenzimidazole

2015 ◽  
Vol 162 (6) ◽  
pp. F587-F595 ◽  
Author(s):  
Mikhail S. Kondratenko ◽  
Marat O. Gallyamov ◽  
Oksana A. Tyutyunnik ◽  
Irina V. Kubrakova ◽  
Alexander V. Chertovich ◽  
...  
Keyword(s):  
High Temperature ◽  
Fuel Cell ◽  
Cathode Material ◽  
Polymer Electrolyte ◽  
Polymer Electrolyte Fuel Cell ◽  
Fuel Cell Cathode ◽  
Cell Cathode

Tafel Slope Component Analysis of Polymer Electrolyte Fuel Cell Cathode Current-Potential Behavior

2019 ◽  
Vol 35 (27) ◽  
pp. 13-23 ◽  
Author(s):  
Donald A. Tryk ◽  
Myoung S. Lee ◽  
Makoto Uchida ◽  
Hiroyuki Uchida ◽  
Masahiro Watanabe
Keyword(s):  
Fuel Cell ◽  
Polymer Electrolyte ◽  
Component Analysis ◽  
Polymer Electrolyte Fuel Cell ◽  
Tafel Slope ◽  
Fuel Cell Cathode ◽  
Cathode Current ◽  
Current Potential ◽  
Cell Cathode

Multi-scale Simulation Approach for Polymer Electrolyte Fuel Cell Cathode Design

2019 ◽  
Vol 16 (2) ◽  
pp. 57-66 ◽  
Author(s):  
Michihisa Koyama ◽  
Donghyun Kim ◽  
Boyeong Kim ◽  
Tatsuya Hattori ◽  
Ai Suzuki ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Polymer Electrolyte ◽  
Polymer Electrolyte Fuel Cell ◽  
Simulation Approach ◽  
Multi Scale ◽  
Cathode Design ◽  
Fuel Cell Cathode ◽  
Cell Cathode

Nonlinear Analysis of Two-Phase Flow in Polymer Electrolyte Fuel Cell Cathode Microchannels

2012 ◽  
Author(s):  
Michael Burkholder ◽  
Nicholas Siefert ◽  
Shawn Litster
Keyword(s):  
Fuel Cell ◽  
Polymer Electrolyte ◽  
Strange Attractor ◽  
Two Phase Flow ◽  
Operating Conditions ◽  
Polymer Electrolyte Fuel Cell ◽  
Phase Flow ◽  
Two Phase ◽  
Fuel Cell Cathode ◽  
Cell Cathode

In this work, we apply a nonlinear chaos analysis to the two phase flow in polymer electrolyte fuel cell cathode air-delivery microchannels. The fuel cell voltage signal is analyzed using techniques designed to estimate invariants typical of deterministic systems with high sensitivity to initial conditions, such as chaotic two phase flow. Voltage data are taken under varying fuel cell operating conditions, and noise in the data is reduced using a nonlinear noise reduction algorithm. The chaotic strange attractor of the system is reconstructed in phase space using time-delay embedding. Correlation sums over the strange attractor are calculated to estimate the fractal correlation dimension of the system. Estimations of the Kolmogorov entropy provide an additional measure of the complexity of the strange attractor. The values of the chaotic invariants are compared across varying degrees of cathode flooding to discern how they change with two phase flow regimes and fuel cell operating conditions. Future work will involve leveraging the chaotic understanding of two phase flow with chaos control methods to increase the power stability.

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