专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US4301218A Bi-porous Raney-nickel electrode 失效
标题翻译：双孔阮内镍电极
公开(公告)号：US4301218A
公开(公告)日：1981-11-17
申请号：US62119
申请日：1979-07-30
申请人： Gabor Benczur-urmossy
发明人： Gabor Benczur-urmossy
IPC分类号： H01M4/98 , C25B11/06 , H01M4/88 , H01M4/96
CPC分类号： H01M4/98
摘要： A hydrogen electrode for batteries or galvanic cells in which a first section of the electrode has relatively large pores and serves for the transport of hydrogen and a second section with relatively small pores containing Raney-nickel catalyst. According to the invention, the electrode consists of a metallized fibrous substrate, for example a felt of carbon or textile fibers, with relatively large intrinsic porosity. The Raney-nickel is introduced into this felt from the outside by one of a variety of methods, for example immersion in a vibrating powder bed, by suction of a liquid suspension of Raney-nickel powder or by the application of a paste containing Raney-nickel or a starting alloy therefor. Preferably, the fibrous substrate consists of a number of layers having a preferred fiber orientation, in which at least one of the layers is so turned that the orientation of the fibers is different from that of the surrounding layers, thereby impeding the penetration of Raney-nickel during the manufacture and constituting a zone free from Raney-nickel and of high porosity to serve as a transport layer for hydrogen. A number of examples is presented.
摘要翻译：一种用于电池或原电池的氢电极，其中电极的第一部分具有相对较大的孔并用于输送氢，以及具有相对较小的含有阮内镍催化剂的孔的第二部分。根据本发明，电极由金属化的纤维基材，例如碳或纺织纤维的毡组成，具有较大的固有孔隙率。通过抽吸阮内镍粉末的液体悬浮液或通过使用含有阮内镍粉的浆料，通过各种方法之一将Raney镍从外部引入到该毡中，例如浸入振动粉末床中，镍或其起始合金。优选地，纤维基材由具有优选纤维取向的多个层组成，其中至少一个层被转动使得纤维的取向与周围层的取向不同，从而阻碍了阮内 - 镍，并且构成不含阮内镍和高孔隙率的区域，用作氢的输送层。提出了一些例子。

IPRDB

热门服务

关于我们

友情链接

联系方式