摘要:
A cathode catalyst layer used for a polymer electrolyte fuel cell that includes an electrolyte membrane is provided. The cathode catalyst layer comprises a catalyst having weight of not greater than 0.3 mg/cm2 of a reaction surface of the cathode catalyst layer that is adjoining the electrolyte membrane; and an electrolyte resin having oxygen permeability of not less than 2.2*10−14 mol/m/s/Pa in an environment of temperature of 80 degrees Celsius and relative humidity of 50%.
摘要翻译:提供了用于包含电解质膜的固体高分子型燃料电池的阴极催化剂层。 阴极催化剂层包含负极与电解质膜相邻的阴极催化剂层的反应面重量不大于0.3mg / cm 2的催化剂; 以及在80℃的温度和50%的相对湿度的环境中具有不低于2.2×10-14mol / m / s / Pa的透氧度的电解质树脂。
摘要:
A cathode catalyst layer used for a polymer electrolyte fuel cell that includes an electrolyte membrane is provided. The cathode catalyst layer comprises a catalyst having weight of not greater than 0.3 mg/cm2 of a reaction surface of the cathode catalyst layer that is adjoining the electrolyte membrane; and an electrolyte resin having oxygen permeability of not less than 2.2*10−14 mol/m/s/Pa in an environment of temperature of 80 degrees Celsius and relative humidity of 50%.
摘要翻译:提供了用于包含电解质膜的固体高分子型燃料电池的阴极催化剂层。 阴极催化剂层包含负极与电解质膜相邻的阴极催化剂层的反应面重量不大于0.3mg / cm 2的催化剂; 以及在80℃的温度和50%的相对湿度的环境中具有不低于2.2×10-14mol / m / s / Pa的透氧度的电解质树脂。
摘要:
This invention relates to solid polymer electrolyte materials for use in one or more electrode of a fuel cell. The solid polymer electrolyte materials comprise one or more ionomer which comprises polymerized units of monomers A and monomers B, wherein monomers A are perfluoro dioxole or perfluoro dioxolane monomers, and the monomers B are functionalized perfluoro olefins having fluoroalkyl sulfonyl, fluoroalkyl sulfonate or fluoroalkyl sulfonic acid pendant groups, CF2═CF(O)[CF2]nSO2X. The ionomer of the solid polymer electrolyte material has a number average molecular weight, Mn, of greater than 140,000. Specifically, the ionomers of the invention may find use in the catalyst layer of an electrode because the high molecular weight ionomers mitigate the formation of cracks in the catalyst layer.
摘要翻译:本发明涉及用于燃料电池的一个或多个电极的固体聚合物电解质材料。 固体聚合物电解质材料包含一种或多种离聚物,其包含单体A和单体B的聚合单元,其中单体A是全氟二氧杂环戊烯单体或全氟二氧戊环单体,单体B是具有氟代烷基磺酰基,氟烷基磺酸酯或氟烷基磺酸的全氟烯烃的官能化 侧链基团,CF 2 = CF(O)[CF 2] n SO 2 X。 固体高分子电解质材料的离聚物的数均分子量Mn大于14万。 具体地,本发明的离聚物可用于电极的催化剂层,因为高分子量离聚物可以减轻催化剂层中的裂纹的形成。
摘要:
An electrode (31c) for fuel cell comprises: a catalyst carrier (110) that is an electrically-conductive carrier (130) with a catalyst (120) supported thereon; a first electrolyte resin (141); and a second electrolyte resin (142). The first electrolyte resin has oxygen permeability of less than 2.2×10−14 mol/(m s Pa) in an environment having temperature of 80 degrees Celsius and relative humidity of 50%. The second electrolyte resin has oxygen permeability of not less than 2.2×10−14 mol/(m s Pa) in the environment having temperature of 80 degrees Celsius and relative humidity of 50%.
摘要:
This invention relates to solid polymer electrolyte materials for use in one or more electrode of a fuel cell. The solid polymer electrolyte materials comprise one or more ionomer which comprises polymerized units of monomers A and monomers B, wherein monomers A are perfluoro dioxole or perfluoro dioxolane monomers, and the monomers B are functionalized perfluoro olefins having fluoroalkyl sulfonyl, fluoroalkyl sulfonate or fluoroalkyl sulfonic acid pendant groups, CF2═CF(O)[CF2]nSO2X.
摘要翻译:本发明涉及用于燃料电池的一个或多个电极的固体聚合物电解质材料。 固体聚合物电解质材料包含一种或多种离聚物,其包含单体A和单体B的聚合单元,其中单体A是全氟二氧杂环戊烯单体或全氟二氧戊环单体,单体B是具有氟代烷基磺酰基,氟烷基磺酸酯或氟烷基磺酸的全氟烯烃的官能化 侧链基团,CF 2 = CF(O)[CF 2] n SO 2 X。
摘要:
This invention relates to ionomers and to ionically conductive compositions formed therefrom. The ionomers comprise polymerized units of monomers A and monomers B, wherein monomers A are perfluoro dioxole or perfluoro dioxolane monomers, and the monomers B are functionalized perfluoro olefins having fluoroalkyl sulfonyl, fluoroalkyl sulfonate or fluoroalkyl sulfonic acid pendant groups, CF2═CF(O)[CF2]nSO2X. The ionically conductive compositions of the invention are useful in fuel cells, electrolysis cells, ion exchange membranes, sensors, electrochemical capacitors, and modified electrodes.
摘要:
There is provided a transparent composite conductor. The composite conductor has a first layer that includes a transparent conductive material and a second layer that includes a fluorinated acid polymer.
摘要:
There is provided a transparent composite conductor. The composite conductor has a first layer that includes a transparent conductive material and a second layer that includes a fluorinated acid polymer.
摘要:
This invention concerns liquid perfluoro-n-alkanes for use in applications demanding high transparency at UV wavelengths ranging from about 150 to 165 nm, especially 157 nm. Uses include optical couplants, optical cements, optical elements, optical inspection media for photolithography at 157 nm exposure wavelength.
摘要:
A method for preparing packages holding liquid alkanes exhibiting high transparency and photochemical stability at wavelength of about 193 nm, wherein a sealable vessel is flushed with an inert gas to form an atmosphere of inert gas, a liquid alkane is charged into the vessel in the atmosphere of inert gas, and the charged vessel is sealed.