Powertrain System Durability in Proton Exchange Membrane Fuel Cell Electric Vehicles: A Review

2018 ◽  
Author(s):  
Xiao Hu ◽  
Ke Song ◽  
Wenxu NIU ◽  
Tong Zhang
Keyword(s):  
Fuel Cell ◽  
Electric Vehicles ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Powertrain System ◽  
Fuel Cell Electric Vehicles ◽  
Exchange Membrane

Field Demonstration of Hydrogen PEM Fuel Cell/Lithium-Ion Battery Hybrid Electric Scooters in Taiwan

2012 ◽  
Vol 512-515 ◽  
pp. 1376-1379 ◽  
Author(s):  
Chien Liang Lin ◽  
Da Yung Wang ◽  
Nai Chien Shih ◽  
Chi Ching Chang
Keyword(s):  
Fuel Cell ◽  
Electric Vehicles ◽  
Proton Exchange Membrane ◽  
Lithium Ion ◽  
Proton Exchange ◽  
Fuel Cell Vehicle ◽  
Start Up ◽  
Logistic Support ◽  
Exchange Membrane ◽  
The Ideal

The proton exchange membrane fuel cell possesses the inherent benefit of low operating temperature, rapid start-up, and high power density, which makes it the ideal power source for electric vehicles. The fuel cell vehicle is envisioned as the vehicle of the future in response to environmental, economic and political constraints. Taiwan is one of the major producers and consumer of ICE-powered scooters in the world. The purpose of this field demonstration project is to prototype the fuel-cell-powered hybrid scooter both in performance and logistic support for mass adoption of this next generation commuting vehicle in Taiwan.

Highly proton conductive membranes based on carboxylated cellulose nanofibres and their performance in proton exchange membrane fuel cells

2019 ◽  
Author(s):  
Valentina Guccini ◽  
Annika Carlson ◽  
Shun Yu ◽  
Göran Lindbergh ◽  
Rakel Wreland Lindström ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Surface Charge ◽  
Proton Exchange Membrane ◽  
Membrane Surface ◽  
Proton Exchange ◽  
Membrane Thickness ◽  
Fuel Cell Performance ◽  
Cellulose Nanofibres ◽  
Exchange Membrane

The performance of thin carboxylated cellulose nanofiber-based (CNF) membranes as proton exchange membranes in fuel cells has been measured in-situ as a function of CNF surface charge density (600 and 1550 µmol g<sup>-1</sup>), counterion (H<sup>+</sup>or Na<sup>+</sup>), membrane thickness and fuel cell relative humidity (RH 55 to 95 %). The structural evolution of the membranes as a function of RH as measured by Small Angle X-ray scattering shows that water channels are formed only above 75 % RH. The amount of absorbed water was shown to depend on the membrane surface charge and counter ions (Na<sup>+</sup>or H<sup>+</sup>). The high affinity of CNF for water and the high aspect ratio of the nanofibers, together with a well-defined and homogenous membrane structure, ensures a proton conductivity exceeding 1 mS cm<sup>-1</sup>at 30 °C between 65 and 95 % RH. This is two orders of magnitude larger than previously reported values for cellulose materials and only one order of magnitude lower than Nafion 212. Moreover, the CNF membranes are characterized by a lower hydrogen crossover than Nafion, despite being ≈ 30 % thinner. Thanks to their environmental compatibility and promising fuel cell performance the CNF membranes should be considered for new generation proton exchange membrane fuel cells.<br>

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