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    • 4. 发明申请
    • ZINC AIR FUEL CELL WITH ENHANCED CELL PERFORMANCE
    • ZINC空气燃料电池,具有增强的电池性能
    • US20110117456A1
    • 2011-05-19
    • US12837750
    • 2010-07-16
    • Hong Gon KimDong Jin SuhChang Soo KimHyun Joo LeeByoung Koun Min
    • Hong Gon KimDong Jin SuhChang Soo KimHyun Joo LeeByoung Koun Min
    • H01M12/06H01M8/22
    • H01M12/065H01M2/162H01M2/1673H01M4/12H01M4/661H01M4/742H01M4/8652H01M4/8657H01M4/886H01M4/8882H01M4/9016
    • Provided is a zinc air fuel cell with enhanced cell performance, more particularly a zinc air fuel cell which includes a separator-electrode assembly including a perforated metal plate as a cathode current collector, a catalyst-coated carbon paper, a separator, a perforated metal plate as an anode current collector, and a tilted nonconductive support. Furthermore, a metal plate may be placed on the tilted nonconductive support and connected to the anode current collector in the separator-electrode assembly to enlarge the active area of the anode current collector. For the zinc air fuel cell according to the present invention, a manufacturing cost may be reduced by using a mixture of MnO2 and CeO2, which are low-priced metal oxides as catalyst materials for oxygen reduction, and by using a low-priced nylon filter, which has a micro-porous structure and shows high stability in alkaline electrolyte. According to the present invention, the performance of the zinc air fuel cell may be efficiently enhanced by using a separator-electrode assembly structure, which minimize a distance between the anode current collector and the cathode current collector, and by adding a metal plate which plays a role of an additional anode current collector on the tilted nonconductive support so as to increase the overall active area of anode current collector contacting with zinc pellets and to resultantly enhance the ionization of zinc.
    • 提供一种具有增强的电池性能的锌空气燃料电池,更具体地说,一种锌空气燃料电池,其包括:分隔电极组件,其包括作为正极集电器的穿孔金属板,催化剂涂覆的碳纸,隔板,穿孔金属 板作为阳极集电器,以及倾斜的非导电支撑。 此外,可以将金属板放置在倾斜的非导电支撑件上并连接到分离器 - 电极组件中的阳极集电器,以扩大阳极集电器的有效面积。 对于根据本发明的锌空气燃料电池,可以通过使用作为氧还原的催化剂材料的低价金属氧化物的MnO 2和CeO 2的混合物以及通过使用低价尼龙过滤器来降低制造成本 ,其具有微孔结构并且在碱性电解质中显示出高稳定性。 根据本发明,可以通过使用使阳极集电体和阴极集电体之间的距离最小化的分隔电极组件结构,并且通过添加播放的金属板来有效地提高锌空气燃料电池的性能 在倾斜的非导电载体上增加负极集电器的作用,以增加与锌粒子接触的阳极集流体的总有效面积并且最终增强锌的离子化。
    • 6. 发明授权
    • Preparation of hexafluoropropylene from the pyrolysis of trifluoromethane and tetrafluoroethylene
    • 从三氟甲烷和四氟乙烯的热解制备六氟丙烯
    • US06403848B1
    • 2002-06-11
    • US09820631
    • 2001-03-30
    • Dong Ju MoonHong Gon KimByoung Sung AhnMoon Jo ChungYoung Soo Kwon
    • Dong Ju MoonHong Gon KimByoung Sung AhnMoon Jo ChungYoung Soo Kwon
    • C07C1702
    • C07C17/269C07C21/18
    • The present invention relates to a process for preparing hexafluoropropylene(CF3CF═CF2, HFP) from the pyrolysis of trifluoromethane(CHF3, R23) and tetrafluoroethylene(C2F4, TFE) and more particularly, to the process for preparing hexafluoropropylene from the pyrolysis of an admixture of R23 and TFE mixed in an appropriate molar ratio at below 900 which is lower than the conventional reaction temperature and longer residence time, after investigating the pyrolysis reaction of R23 and TFE by the computer simulation. The process for preparing HFP is performed by carefully controlling reaction temperature with heat balance resulted from an endothermic pyrolysis of R23 and an exothermic dimerization of TFE to prevent from carbon formation, recycling unreacted R23 and TFE in the product separated and purified from distillation column, adding fresh R23 additionally to keep an appropriate molar ratio of R23 and TFE, to improve a total yield of HFP and to minimize heat supply from outside.
    • 本发明涉及从三氟甲烷(CHF 3,R 23)和四氟乙烯(C 2 F 4,TFE)的热解制备六氟丙烯(CF 3 CF = CF 2,HFP)的方法,更具体地说,涉及从混合物的热解制备六氟丙烯的方法 通过计算机模拟研究R23和TFE的热解反应后,R23和TFE以适合的摩尔比混合在900以下,低于常规反应温度和较长的停留时间。 制备HFP的过程是通过仔细控制反应温度和由R23的吸热热解产生的热平衡和TFE的放热二聚反应来防止形成碳,循环未反应的R23和TFE,从蒸馏塔中分离和纯化,加入 新鲜的R23另外保持适当的R23和TFE的摩尔比,以提高HFP的总产率并最小化从外部的供热。