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    • 3. 发明申请
    • Fuel cell-use separator
    • 燃料电池用分离器
    • US20050104047A1
    • 2005-05-19
    • US10500209
    • 2002-12-24
    • Takayuki SuzukiNoriji Tashiro
    • Takayuki SuzukiNoriji Tashiro
    • H01B1/24H01M8/02H01M8/10
    • H01M8/0226H01M8/0213H01M8/0221H01M2008/1095
    • A separator for fuel cell having a bending strain at break of 0.5% or more, a compressive modulus of 20 GPa or less, or a Shore hardness falling within the range of from 20 to 50, preferably made of a molded body including graphite and a resin, as well as a separator for fuel cell made of a molded body including graphite and a resin, wherein, after soaking the separator at 80° C. for 100 hours in water 30 times as much as the molded body by volume, the total concentration of the sodium, potassium, iron, nickel and magnesium released into the soaking water is 20 ppm or less, and the concentration of the sulfur released into the soaking water is 30 ppm or less, can provide a fuel cell which is excellent in the assembly soundness of the fuel cell stack and in which the deterioration of the cell properties hardly occurs even for a long time operation.
    • 具有0.5%以上的弯曲应变,20GPa以下的压缩弹性模量或20〜50的肖氏硬度的燃料电池用隔膜,优选由包含石墨和 树脂,以及由包含石墨和树脂的成型体制成的燃料电池用隔板,其中,在80℃下,将隔膜在成型体体积的30倍的水中浸泡100小时后,将总计 释放到均热水中的钠,钾,铁,镍,镁的浓度为20ppm以下,释放到均热水中的硫的浓度为30ppm以下,能够提供优异的燃料电池 燃料电池堆的组装稳定性,即使长时间运转也难以发生电池特性的劣化。