公开(公告)号：US20140255619A1

公开(公告)日：2014-09-11

申请号：US14283880

申请日：2014-05-21

Applicant: SHOWA DENKO K.K.

Inventor： Tadashi IINO ,  Zenichiro Izumi

IPC: H01M8/02

CPC classification number: H01M8/026 ,  H01M8/0213 ,  H01M8/0221 ,  H01M8/0226 ,  H01M8/0228 ,  H01M2008/1095 ,  Y02P70/56

Abstract: Provided is a method for producing a fuel cell separator which can achieve a stable power generation over a prolonged period of time and a method of producing the fuel cell separator. The fuel cell separator has a recess for gas flow path whose surface is roughened in such a manner that the arithmetic mean roughness Ra is 0.5 to 10 μm, and the recess for gas flow path is brought into contact with a fluorine-containing gas or a gas containing both fluorine and oxygen. The thus obtained fuel cell separator can retain a uniform liquid film formed on the surface thereof for at least 10 seconds when a test piece prepared from the fuel cell separator is immersed in water for 30 seconds and pulled out therefrom to a position at not less than 1 cm from the water surface within 1 second.

Abstract translation: 提供一种能够长时间地实现稳定发电的燃料电池用隔板的制造方法以及燃料电池隔板的制造方法。 燃料电池用隔板具有用于气体流路的凹部，其表面粗糙化，算术平均粗糙度Ra为0.5〜10μm，气体流路用凹部与含氟气体或 含氟和氧气的气体。 由此得到的燃料电池隔板能够将从燃料电池隔板制成的试验片浸渍在水中30秒钟并将其拉出至不小于10度的位置时，能够将形成在其表面上的均匀的液膜保持至少10秒钟 1秒内从水面1厘米。

公开(公告)号：US20160064746A1

公开(公告)日：2016-03-03

申请号：US14783331

申请日：2014-04-04

Applicant: SHOWA DENKO K.K.

Inventor： Tadashi IINO ,  Shunya SUZUKI

IPC: H01M8/02 ,  H01M8/18

CPC classification number: H01M8/0297 ,  H01M4/88 ,  H01M4/96 ,  H01M8/0213 ,  H01M8/0221 ,  H01M8/0228 ,  H01M8/0234 ,  H01M8/0239 ,  H01M8/0245 ,  H01M8/188 ,  Y02E60/528 ,  Y02P70/56

Abstract: A carbon member for use as a battery member of a redox flow battery or a fuel cell, obtained by welding, into a single integrated body: a first layer including a first resin composition containing a polyolefin-based resin and having a melt flow rate of 0.01 to 10 g/10 min, and a first carbonaceous material; a second layer including a second resin composition containing a polyolefin-based resin, having a melt flow rate of 5 to 1,000 g/10 min that is greater than that of the first resin composition, and having a melting point that is 80° C. or higher, but is at least 10° C. lower than that of the first resin composition, and a second carbonaceous material; and a third layer, which is disposed facing the first layer with the second layer interposed therebetween, and is formed from a porous carbon material having a specified bulk density.

Abstract translation: 用作通过焊接获得的氧化还原液流电池或燃料电池的电池构件的碳构件，其形成为单个集成体：第一层，包括含有聚烯烃类树脂的第一树脂组合物，其熔体流动速率为 0.01〜10g / 10分钟，第一含碳材料; 第二层，其包含含有聚烯烃类树脂的第二树脂组合物，其熔体流动速率为大于第一树脂组合物的熔体流动速率为5至1,000g / 10min，熔点为80℃。 或更高，但比第一树脂组合物低至少10℃，和第二含碳材料; 以及第三层，其被设置为面对所述第一层，所述第二层介于其间，并且由具有特定体积密度的多孔碳材料形成。