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    • 3. 发明授权
    • Fluorinated membranes
    • 氟化膜
    • US07399791B2
    • 2008-07-15
    • US11110745
    • 2005-04-21
    • Vincenzo ArcellaFabio PolastriAlessandro GhielmiPaola Vaccarono
    • Vincenzo ArcellaFabio PolastriAlessandro GhielmiPaola Vaccarono
    • C08J5/20
    • B01D71/32C08J5/225C08J2327/12C25B13/08H01M8/1027H01M8/1039H01M8/1067H01M8/1069H01M2300/0082Y02P70/56
    • Ionomeric membranes comprising (per)fluorinated, se-micrystalline or amorphous, ionomeric polymers, having equivalent weight (EW) from 380 g/eq to 1,800 g/eq, which used in fuel cells, under the following conditions: membrane thickness 50 μm assembled between two electrodes catalyzed with 0.6 mg/cm2 Pt/C and treated with 0.7 mg/cm2 of Nafion®, having a 10 cm2 area; hydrogen and air feeding, both at the pressure of 0.25 MPa, both saturated with water at 80° C.; cell temperature 75° C.; for membranes formed of copolymers TFE/F2C═CF—O—(CF2)2—SO2F, give the following maximum specific power (PMAX) values, at the indicated EW values: at EW=670 PMAX higher than 0.55 Watt/cm2; at EW=830 PMAX higher than 0.66 Watt/cm2; at EW=1,160 PMAX higher than 0.50 Watt/cm2; at EW=1,600 PMAX higher than 0.32 Watt/cm2.
    • 离子聚合物膜包含在以下条件下用于燃料电池的(全)氟化,结晶或无定形离聚物聚合物,其具有380g / eq至1,800g / eq当量的等效重量(EW):组装的膜厚度50μm 在用0.6mg / cm 2 Pt / C催化的两个电极之间,并用0.7mg / cm 2的Nafion处理,其具有10cm 2 / / SUP>区域; 氢气和空气进料,两者在0.25MPa的压力下,均在80℃下用水饱和; 电池温度为75℃。 对于由共聚物形成的膜TFE / F 2 C-CF-O-(CF 2)2 -SO 2 2 F,在指定的EW值下给出以下最大比功率(P MAX):在EW = 670 P最高高于0.55瓦特/厘米 2 ; 在高于0.66Watt / cm 2的EW = 830P最大值 在EW = 1,160 P MAX高于0.50Watt / cm 2的情况下, 在高于0.32瓦/厘米2的EW = 1,600P最高