Durability Prediction of Fuel Cell Adhesive Sheet by FC System Simulator

Ichikawa Ryosuke･Naoki Ogiwara･Norishige Konno (Toyota Motor)･Kyohei Kobayashi･Shigeyuki Watanabe (Toyobo)

The widespread adoption of fuel cells (FCs) has increased expectations for the commercial multi-purpose applications. For the heavy-duty mobility applications, increasingly severe durability requirements caused by longer operation times and higher temperatures necessitate the advanced durability design. In this study, we focus on an adhesive sheet providing the sealing and insulation functions in the FC cells. The durability prediction methodology is established by integrating the stress and strength concepts into an FC system simulator capable of analyzing the dynamically varying power generation distributions within the FC cell during the HDV driving.

ECMS-based Energy Management Strategy for a Hydrogen Fuel Cell Hybrid Yard Tractor

Juhan Lee･Beomho Lee･Taeho Park･Dohyun Park･Janghyeok Won･Deokjin Kim (Korea Automotive Technology Institute)

Hydrogen fuel cell (FC) hybrid powertrains are a zero-emission option for port yard tractors (YTs), whose high peak power, low average power, and frequent start-stop operation challenge battery-electric solutions. A software-in-the-loop (SILS) model of an FC hybrid YT-80 kW FC stack, 90.7 kWh battery, 310 kW motor-is built in MATLAB/Simulink with IPG TruckMaker. A representative duty cycle from 191 in-service trips shows 22 kW average and 232 kW peak power. The baseline rule-based supervisor yields bimodal FC operation, motivating a proposed ECMS with a PI-based adaptive equivalence factor to shift FC operation into its high-efficiency region while sustaining charge.

Development and evaluation of a water-cooled fuel cell stack with porous rib GDL/MPL

Takumi Nunokawa･Aiko Miyata･Takumi Onda (SUBARU)･Mitsunori Nasu (ENOMOTO)･Makoto Uchida･Masahiro Watanabe (University of Yamanashi)･Naohide Yoshimura (SUBARU)

To reduce the processing cost of bipolar plates and to improve the volumetric power density of the cell, a water-cooled fuel cell incorporating porous rib GDL/MPL was fabricated. Furthermore, a short stack was constructed by stacking multiple cells. The power generation performance and the effects of this approach are reported.

Experimental Investigation of Hydrogen Storage and Utilization Technique using Hydrogen Absorbing Alloys for Light Duty Device

Sota Kato･Hikaru Komatu･Masataka Kosaka (Saitama Institute of Technology)

In recent years, changing the energy of a lot of devices including Light Duty Vehicle, Heavy Duty Vehicle and so on into hydrogen, have been trying. In many cases, the high pressure compressed hydrogen gas is used as power of these devices, so public use is difficult. In this paper, the hydrogen storage vessel using the hydrogen absorbing alloys that were possible to absorb and desorb the large amount of hydrogen gas at room temperature and normal pressure, for the Light Duty devices were developed and the characteristics of proposed unit were described.