News Releases 2004

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February 26, 2004

FCX Equipped with Honda Fuel Cell Stack Proves its Cold-StartPerformance- Tests conducted at below freezing temperatures in Hokkaido -

February 26, 2004 — Honda Motor Co., Ltd. today announced that it conducted public testing of its FCX equipped with Honda’s Fuel Cell Stack in Hokkaido, proving the vehicle’s cold-start and driving performance capabilities. 

Driving was conducted on a test track in Takasu as well as on public roads in Furano, Hokkaido. As a part of the test, the FCX successfully started up after being parked outside overnight. Temperatures fell to as low as –11ºC(+12ºF), but the FCX, equipped with Honda’s original Fuel Cell Stack, started up promptly as usual. Test drives conducted immediately afterwards demonstrated the vehicle’s high driving performance. Honda will continue conducting cold weather testing in its effort to make widespread use of fuel cell vehicles a reality. 

The Honda FC Stack is the world’s first fuel stack to feature a stamped metal separator structure and newly developed electrolyte membranes. Conventional fuel cell stacks have a complex structure in which carbon separators are fastened together with bolts. The Honda FC Stack, however, has a simplified structure composed of stamped metal separators, with rubber seals that are attached in a unique molding process and enclosed by panels. This reduces the number of components by almost 50% (compared to a conventional unit*1) and more than doubles the output density*2, resulting in world-leading high performance. Further, use of newly developed aromatic electrolyte membranes greatly improves durability and allows for power generation at temperatures ranging from -20ºC(-4ºF) to +95ºC(+203 ºF)— a difficult achievement for stacks that employ conventional fluorine electrolyte membranes. The driving range of the FCX with a Honda FC Stack also has increased by 40 km*3, from 355 km to 395 km,
while fuel economy has improved by over 10%*4.

*1  Honda fuel cell stack on the FCX-V3
*2  output/volume, output/weight
*3  LA4 mode Honda in-house calculations
*4  Compared with an FCX equipped with a Ballard fuel cell stack



Specifications of the Honda FC Stack-equipped FCX

Name FCX
Number of occupants 4
Max. speed 150 km/h
Motor Max. output 80kW (109PS)
Max. drive torque 272N·m (27.5 kg·m)
Type AC synchronous electric motor
(manufactured by Honda)
Fuel cell stack
(2 units)
(proton exchange membrane fuel cell, manufactured by Honda)
Output 86kW
Fuel Type Compressed hydrogen
Storage High-pressure hydrogen tank (350 atmospheres)
Capacity 156.6 liters
Dimensions (L x W x H, mm) 4165 x 1760 x 1645
Energy storage Ultra Capacitor (manufactured by Honda)
Vehicle range (LA4 mode) 395 km