摘要:
An ionic conductor, such as a proton conductor, a process for production thereof, and an electrochemical device, such as fuel cell, that includes the ionic conductor is provided. The ionic conductor of the present invention is formed from a polymer in which carbon clusters having ion dissociating functional groups are bonded to each other through connecting groups which can also include one or more ion dissociating functional groups. In this regard, the polymer is less water-soluble and more chemically stable than a derivative composed solely of carbon clusters, thus displaying enhanced ionic conduction properties.
摘要:
An oxidant solution for synthesizing a heat-resistant electroconductive polymer, composed of a solution of a non-protonic organic solvent and an oxidant of the organic compound iron salt expressed by the following formula:Fe.sup.3+O [(X)L--(M)m--(Y.sup.-)n]pH.sup.+ qwhere X is COOH or OHM is organic compoundY is strong electrolytic anion"L", "m" and "n" are not less than 13O+q=np, but in the case of O=1, 3
摘要翻译:用于合成耐热导电聚合物的氧化剂溶液,其由非质子有机溶剂的溶液和由下式表示的有机化合物铁盐的氧化剂组成:Fe 3+ O [(X)L-(M) m-(Y-)n] pH + q其中X是COOH或OH M是有机化合物Y是强电解阴离子“L”,“m”和“n”不小于1 3O + q = np, O = 1,3
摘要:
A fuel cell is provided that prevents destabilization of power generation due to heat generated in an electrochemical device portion. In a fuel cell having a membrane-electrode assembly which performs power generation by chemical reaction, a membrane-electrode assembly is disposed with a space from another membrane-electrode assembly or two membrane-electrode assemblies are provided adjacent to each other so that the pair is disposed with a space from another membrane-electrode assembly or another pair, and one of the main surfaces of a membrane-electrode assembly is in contact with outside air. Conductive plates are disposed in contact with the membrane-electrode assembly in order to exchange a current generated in the membrane-electrode assembly with the outside, and radiation fins are provided on the conductive plate on the main surface side in contact with outside air so that the conductive plate serves as a radiation member.
摘要:
An electrochemical device capable of improving arrangement efficiency of bonded bodies and securing favorable sealing characteristics is provided. An electrolyte membrane 11 has a reaction region 11A sandwiched between a fuel electrode 12 and an oxygen electrode 13 and a peripheral region 11B exposed from between the fuel electrode 12 and the oxygen electrode 13. A connection member 20 has a bent section 23 between two flat sections 21 and 22. Since an adhesive layer 14 is provided in the peripheral section 11B of the electrolyte membrane 11, and the bent section 23 of the connection member 20 is bonded to the adhesive layer 14, arrangement efficiency of a bonded body 10 is improved, and favorable sealing characteristics are secured. The adhesive layer 14 has a structure in which a first contact layer having high adhesion to the electrolyte membrane 11, a barrier layer, a strength retention layer, and a second contact layer having high adhesion to the connection member 20 are sequentially laminated. Since a connection-member-side adhesive layer is provided on the bent section 23 of the connection member 20, adhesion strength can be further improved.
摘要:
Provided are an ion-conductive composite electrolyte that improves ionic conductivity, a membrane-electrode assembly and an electrochemical device using the same, and a method for producing an ion-conductive composite electrolyte membrane.A proton-conductive composite electrolyte contains an electrolyte having a proton-dissociative group (—SO3H) and a compound having a Lewis acid group MXn-1, wherein the Lewis acid group and the proton-dissociative group interact with each other. The compound having the Lewis acid group is a Lewis acid compound MXn or a polymer having a Lewis acid group MXn-1. The electrolyte having a proton-dissociative group is, for example, a fullerene derivative. A proton-conductive composite electrolyte membrane is formed using a solvent having a donor number of 25 or less, and a membrane-electrode assembly using the same is suitable for use in a fuel cell.
摘要:
Disclosed herein is a method for production of a titanium dioxide composite, the method including a step of preparing titanium dioxide nanowires, a step of dipping the titanium dioxide nanowires in a solution containing titanium oxysulfate and urea, thereby forming titanium dioxide fine particles on the surface of the titanium dioxide nanowires, and a step of recovering the titanium dioxide nanowires having the titanium dioxide fine particles formed on the surface thereof.
摘要:
Disclosed herein are an ionic conductor including a proton conductor, a process for production thereof, and an electrochemical device (such as fuel cell) with said ionic conductor, said ionic conductor being superior in ionic conductivity, water resistance, and film forming properties. The ionic conductor is formed from a polymer in which carbon clusters having ion dissociating functional groups are bonded to each other through connecting groups. The polymer is less water-soluble and more chemically stable than a derivative composed solely of carbon clusters; therefore, it permits many ion dissociating functional group to be introduced thereinto. Moreover, if ion dissociating functional groups are introduced into also the connecting group, it is possible to prevent the concentration of ion dissociating functional groups from decreasing as the result of polymerization. The polymer can be easily synthesized by simple condensation, substitution, and hydrolysis. Therefore, the process is suitable for mass production in high yields.
摘要:
Disclosed herein are an ion-dissociative functional compound, a method for production thereof, an ionic conductor, and an electrochemical device, the ion-dissociative functional compound being thermally and chemically stable under the condition required of fuel cells and being suitable for use as a material such as protonic conductor in fuel cells.The proton-dissociative functional compound shown in FIG. 1A is composed of a fullerene C60 molecule and about 10 sulfonic acid groups —SO3H as proton-dissociative groups each attached to the fullerene through a difluoromethane group —CF2—. The proton-dissociative functional compound shown in FIG. 1B is composed of fullerene molecules three-dimensionally connected to each other through a linking group —CF2SO2NHSO2CF2—. It contains, as the proton-dissociative group, sulfoneimide groups —SO2NHSO2— and sulfoneamide groups —SO2H2 in addition to sulfonic acid groups. These compounds are prepared by introduction of difluoro(fluorosulfonyl)methyl groups into fullerene molecules, and ensuing imidization and hydrolysis.
摘要:
A proton conductor is provided. The proton conductor includes a zwitterion salt such as MeImPrSO3 and a proton (H+) donor such as HTFSI. An electrochemical device having a stacked layer structure formed of a first electrode, a second electrode and a proton conducting layer held between these electrodes, wherein the proton conducting layer includes a proton conductor according to the present invention. The present invention can, therefore, provide a proton conductor and electrochemical device, which can be suitably used in a dry state or under high-temperature, non-humidified conditions, can obviate a complex accessory such as a humidifier, and can simplify the system.
摘要翻译:提供质子导体。 质子导体包括两性离子盐如MeImPr 3 SO 3和质子(H + +)供体如HTFSI。 一种电化学装置,其具有由第一电极,第二电极和保持在这些电极之间的质子传导层形成的堆叠层结构,其中质子传导层包括根据本发明的质子导体。 因此,本发明可以提供可以在干燥状态或高温非加湿条件下适当使用的质子导体和电化学装置,可以消除诸如加湿器之类的复杂附件,并且可以简化系统 。