摘要:
Provided is an electrolyte membrane and a process of producing the same, wherein the electrolyte membrane predominantly comprises an unreinforced outer layer on one or each side of a reinforced inner layer, wherein the reinforced inner layer comprises an inner ion exchange resin reinforced with a non-woven fabric comprising a melt moldable fluororesin in the form of a continuous fiber, wherein some intersecting points of the continuous fiber are fused or bonded, and wherein the unreinforced outer layer comprises an outer ion exchange resin, which may be the same as or different from the inner ion exchange resin. The electrolyte membrane has high strength, excellent dimensional stability and low electric resistance and is therefore useful as a polymer electrolyte membrane for a membrane electrode assembly for a polymer electrolyte fuel cell having high output and excellent durability.
摘要:
To provide an electrolyte membrane having high strength even if it is thin in the thickness, excellent dimensional stability even upon absorption of water and a low electrical resistance; a process for producing the electrolyte membrane; and a membrane-electrode assembly for polymer electrolyte fuel cells having a high output and excellent durability, having the electrolyte membrane. An electrolyte membrane which is made mainly of an ion exchange resin and reinforced with a non-woven fabric made of continuous fiber of a fluororesin wherein at least some of intersecting points of the continuous fiber are fixed, and which has, as the outermost layer on one side or each side, a layer not reinforced, made of an ion exchange resin which may be the same as or different from the above ion exchange resin. The non-woven fabric is produced by a melt-blown method.
摘要:
A method of producing a photovoltaic element is provided which comprises the steps of immersing in an electrolytic solution a photovoltaic element including a back surface reflecting layer, a semiconductor layer and a transparent electrode layer successively stacked on a substrate, applying a forward voltage to the photovoltaic element to effect an electrolytic treatment to reduce the transparent electrode layer in a short-circuit portion of the photovoltaic element, thereby selectively removing a short-circuit current path in the photovoltaic element due to a defect, wherein a voltage gradient when the forward voltage applied to the photovoltaic element is lowered to 0 V or a such forward voltage as to effect no reduction reaction of the transparent electrode layer is controlled to be −15 V/s to −0.1 V/s, whereby a shunt portion is selectively removed with reliability without increasing a shunt path.
摘要:
A method for producing a membrane electrode assembly 1 for solid polymer electrolyte fuel cell, the membrane electrode assembly 1 including a solid polymer electrolyte membrane 2 comprising an ion exchange membrane, a first electrode 3 having a first catalyst layer 31, and a second electrode 4 having a second catalyst layer 41, the first electrode 3 and the second electrode 4 being disposed so as to be opposed to each other via the ion exchange membrane, the method including: applying a coating solution containing a catalyst onto a base film 101 to form a first catalyst layer 31; applying a coating solution containing an ion exchange resin dissolved or dispersed in a liquid onto the first catalyst layer 31 to form an ion exchange membrane; then applying a coating solution containing a catalyst onto the ion exchange membrane to form a second catalyst layer 41; and finally, peeling off the base film 101 from a resulting laminate. According to this method, it is possible to produce membrane electrode assembly 1 for high-performance solid polymer electrolyte fuel cell having catalyst layers each having a uniform thickness efficiently and continuously.
摘要:
A substrate-processing method includes at least (a) a step of delivering a web substrate and an interleaf from a substrate delivery bobbin provided in a substrate delivery chamber while the web substrate is transported into a substrate-processing chamber and the interleaf delivered is wound on an interleaf takeup bobbin, and (b) a step of subjecting the web substrate transported into the substrate-processing chamber to desired processing in the substrate-processing chamber. The web substrate processed in the substrate-processing chamber is transported outside the substrate-processing chamber, and transport abnormality of the interleaf in the substrate delivery chamber is detected by a transport abnormality-detecting mechanism.
摘要:
A gas adsorptive member is disposed in a space communicating with film deposition chambers, and deposition films are deposited while continuously feeding gas components released from this member, thereby enabling the high quality and uniform deposition films to be formed on the substrate with good reproducibility.
摘要:
The present invention provides a process of forming a deposited film on a belt-like substrate by a roll-to-roll system, the process comprising the step of eliminating a curl deformation of the belt-like substrate resulting from application of a deformation stress, by exerting an external stress on a non-depositing surface of the belt-like substrate. It can prevent occurrence of flaws, defects of appearance, defects of electrode, and so on in succeeding steps etc. and can produce semiconductor elements and photovoltaic elements with high quality at a high yield.
摘要:
A process is provided for producing a photovoltaic element which has at least one pin junction, and a buffering semiconductor layer constituted of plural sublayers between an n-type layer and an i-type layer and/or between an i-type layer and a p-type layer, through production steps of introducing a source material gas into an electric discharge space in a reaction chamber, and decomposing the source material gas by plasma discharge to form a non-monocrystalline semiconductor layer. In the process, in electric discharge generation for formation of at least one of the sublayers, the polarity of the electrode confronting the substrate for formation of a first sublayer and the polarity of the electrode confronting the substrate for formation of a second sublayer adjacent to the first sublayer is made different from each other, or the potential of one of the electrodes is set at zero volt. Thereby, diffusion of the dopant from the p-type layer or the n-type layer into the i-type layer is prevented effectively. The produced photovoltaic element is improved in the output properties, the open-circuit voltage, and the fill factor, and these properties deteriorate less.
摘要:
In a level shifter circuit comprising two P-channel transistors (MP1, MP2), two N-channel transistors (MN1, MN2), two P-channel transistors (MP3, MP4) and two N-channel transistors (MN3, MN4) which are interposed the P-channel transistors (MP1, MP2) and the N-channel transistors (MN1, MN2), four P-channel transistors (MP7, MP8, MP9, MP10) are connected between node (#1, #2) and VCC/GND signal (IN2) in series to fix node potentials of the N-channel transistors (MN3, M4) to VCC/GND. Connected to the nodes (#1, #2), the P-channel transistors (NP9, MP10) have gates connected to GND as countermeasure of a breakdown voltage BVds. Connected to VCC/GND signal (IN2), the P-channel transistors (MP7, MP8) have gates which are directly connected to an input terminal (IN1) and an output terminal of an inverter (INV1), respectively.
摘要:
A process for producing a multi-layer film having a plurality of synthetic resin layers laminated on a releasable flat substrate by casting, which comprises firstly forming on the substrate a synthetic resin layer having adhesive or sticking properties, and then casting and curing on the synthetic resin layer having adhesive or sticking properties at least one kind of reaction-curable resin raw material mixture substantially free from a solvent to form at least one cured synthetic resin layer, so that the uppermost layer is composed of a cured synthetic resin superior in surface properties to its adjacent layer. Further, surface defects transferred from the substrate to the adhesive layer are substantially eliminated by a subsequent lamination step.