| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel cell device (10, 100, 200, 300, 400, 500), a fuel cell system, a using method for a fuel cell device and system, and a manufacturing method for a fuel cell device (10, 100, 200, 300, 400, 500).SOLUTION: Each of fuel cell devices (10, 100, 200, 300, 400, 500) has a narrow substrate such as a rectangular or tubular substrate. Its thermal expansion coefficient is equal to the maximum length of the narrow substrate so as to have a unique principal axis which has the same extension as its length. Additionally, according to another specific embodiment, reaction areas (32, 32b) are located along a first portion of a length required for the reaction areas to be heated up to an operation reaction temperature. At least one low temperature area is located along a second portion of a length required for the low temperature area to operate at a temperature equal to or lower than the operation reaction temperature. |
