Abstract: Provided are a fuel cell with a porous gas diffusion layer having a flow channel and a method for manufacturing the same. A metal separator without a flow channel is used, but a flow channel for providing a reaction gas is formed in a gas diffusion layer made of a porous material. This improves precision of stack manufacturing and allows free design of the cooling part. The gas diffusion layer is made of a porous metal material so as to maximize electrical transfer efficiency and improve endurance against physical stress.

Abstract: Disclosed is an integrated multi-measurement system for measuring physical properties including thickness, electrical resistance and differential pressure of a gas diffusion layer for a polymer electrolyte fuel cell with respect to compression. The integrated multi-measurement system simultaneously measures changes in the physical properties of the gas diffusion layer depending on pressure upon measurement of the physical properties of the gas diffusion layer of the fuel cell and also measures through-plane permeability in which a gas is passed through a sample in a direction perpendicular to the sample and in-plane permeability in which a gas is passed through a sample in a direction parallel to the sample.

Abstract: The present invention relates to a preparing process an organic-inorganic composite polymer membrane for fuel cell by using sol-gel process. At this time, it is characterized in that when a sulfonated hydrocarbons polymer having ion conductivity is cast with film shape, sol-gel process which enables to distribute an inorganic matter having an excellent cation exchange and moisture holding capacity homogeneously is used. With homogeneous introduction of an inorganic matter into a polymer matrix by sol-gel process according to the present invention, it is possible to improve a phenomenon that an inorganic matter is partially concentrated at some position, thereby enabling to obtain an ion conducting organic-inorganic composite polymer membrane having an excellent ion conductivity.

Abstract: The present invention provides a cell or stack for evaluating the performance of a fuel cell and a method of evaluating the performance of the fuel cell using the cell or stack, in which a semiconductor thermoelectric device, attached to the side surface of the unit cell or stack of the fuel cell, is provided so as to evaluate the performance of the fuel cell in an environment in which temperature is maintained at a uniform temperature. According to the present invention, the temperatures of an anode and a cathode of the fuel cell can be precisely changed or maintained. Further, the performance of the fuel cell can also be measured in sub-zero temperature conditions without requiring a separate environmental chamber. A rate of temperature decrease, at which the temperature decreases to a certain sub-zero temperature, or a rate of temperature increase can be precisely controlled.

Abstract: A conveying apparatus conveys articles used for manufacturing semiconductor devices. The conveying apparatus has a conveying rail section that includes a first rail providing a first conveying route, a second rail providing a second conveying route, and an intermediate rail structure interconnecting the first and second rails. Respective vehicles are fitted to the first and second rails so as to convey articles as supported atop the first rail or as suspended from the second rail, respectively. The conveying apparatus can be readily installed in the bay of an automatic manufacturing system, e.g., of a type for processing wafers having a diameter of 300 mm. In this case, the conveying route of the articles is unified, and space is saved, as well.

Abstract: A conveying apparatus conveys articles used for manufacturing semiconductor devices. The conveying apparatus has a conveying rail section that includes a first rail providing a first conveying route, a second rail providing a second conveying route, and an intermediate rail structure interconnecting the first and second rails. Respective vehicles are fitted to the first and second rails so as to convey articles as supported atop the first rail or as suspended from the second rail, respectively. The conveying apparatus can be readily installed in the bay of an automatic manufacturing system, e.g., of a type for processing wafers having a diameter of 300 mm. In this case, the conveying route of the articles is unified, and space is saved, as well.