Formation of 3D graphene–Ni foam heterostructures with enhanced performance and durability for bipolar plates in a polymer electrolyte membrane fuel cell

2018 ◽  
Vol 6 (4) ◽  
pp. 1504-1512 ◽  
Author(s):  
Yeoseon Sim ◽  
Jinsung Kwak ◽  
Se-Yang Kim ◽  
Yongsu Jo ◽  
Seunghyun Kim ◽  
...  

A simple and robust strategy to form uniform 3D graphene on Ni foam is developed to improve the performance and the durability of bipolar plates for polymer electrolyte membrane fuel cells.

2014 ◽  
Vol 4 (5) ◽  
pp. 1400-1406 ◽  
Author(s):  
Yuta Nabae ◽  
Mayu Sonoda ◽  
Chiharu Yamauchi ◽  
Yo Hosaka ◽  
Ayano Isoda ◽  
...  

A Pt-free cathode catalyst for polymer electrolyte membrane fuel cells has been developed by multi-step pyrolysis of Fe phthalocyanine and phenolic resin and shows a quite promising fuel cell performance.


Author(s):  
Erman Çelik ◽  
İrfan Karagöz

Polymer electrolyte membrane fuel cells are carbon-free electrochemical energy conversion devices that are appropriate for use as a power source on vehicles and mobile devices emerging with their high energy density, lightweight structure, quick startup and lower operating temperature capabilities. However, they need more developments in the aspects of reactant distribution, less pressure drops, precisely balanced water content and heat management to achieve more reliable and higher overall cell performance. Flow field development is one of the most important fields of study to increase cell performance since it has decisive effects on performance parameters, including bipolar plate, and thus fuel cell weight. In this study, recent developments on conventional flow field designs to eliminate their weaknesses and innovative design approaches and flow field architectures are obtained from patent databases, and both numerical and experimental scientific studies. Fundamental designs that create differences are introduced, and their effects on the performance are discussed with regard to origin, objective, innovation strategy of design besides their strength and probable open development ways. As a result, significant enhancements and design strategies on flow field designs in polymer electrolyte membrane fuel cells are summarized systematically to guide prospective flow field development studies.


2004 ◽  
pp. 307-314 ◽  
Author(s):  
U.-S. JEON ◽  
S.-Y. AHN ◽  
Y. M. CHOI ◽  
K. K. KIM ◽  
E. A. CHO ◽  
...  

Energies ◽  
2020 ◽  
Vol 13 (1) ◽  
pp. 235
Author(s):  
Nadine Pilinski ◽  
Claudia Käding ◽  
Anastasia Dushina ◽  
Thorsten Hickmann ◽  
Alexander Dyck ◽  
...  

In this work, different methods and electrochemical set-ups were investigated in order to study the corrosion behaviour of bipolar plates (BPP) for high temperature (HT) polymer electrolyte membrane fuel cell application. Using confocal and scanning electron microscopy, it was shown that chemical and electrochemical aging significantly increases surface roughness as well as morphology changes, confirming material degradation. Identical electrochemical corrosion behaviour was observed for both set-ups with typical quinone/hydroquinone peaks in the potential range ~0.6–0.7 V versus reversible hydrogen electrode (RHE). The appearance of the peaks and an increase of double layer capacitance can be related to the oxidation of carbon surface and, consequently, material corrosion. Simultaneously, an optimised corrosion set-up was introduced and verified regarding suitability. Both investigated set-ups and methods are useful to analyse the oxidation behaviour and corrosion resistance.


2002 ◽  
Vol 5 (11) ◽  
pp. A245 ◽  
Author(s):  
M. P. Brady ◽  
K. Weisbrod ◽  
C. Zawodzinski ◽  
I. Paulauskas ◽  
R. A. Buchanan ◽  
...  

Fuel Cells ◽  
2015 ◽  
Vol 16 (1) ◽  
pp. 39-45 ◽  
Author(s):  
P. Alnegren ◽  
J. G. Grolig ◽  
J. Ekberg ◽  
G. Göransson ◽  
J.-E. Svensson

Sign in / Sign up

Export Citation Format

Share Document