公开(公告)号：KR1020030008532A

公开(公告)日：2003-01-29

申请号：KR1020010043222

申请日：2001-07-18

Applicant: 한국에너지기술연구원

Inventor： 송락현 ,  신동열 ,  이병록 ,  디나다이얄란수바라주

IPC: H01M8/02

Abstract: PURPOSE: A silicon carbide slurry for the electrolyte matrix of a phosphoric acid-type fuel cell and its preparation method are provided, to improve the performance and the lifetime of a fuel cell by the uniform distribution of size of slurry particles. CONSTITUTION: The silicon carbide slurry comprises 45-55 vol% of a silicon carbide with a particle size of 0.1-1 micrometers and 45-55 vol% of a silicon carbide with a particle size of 1-10 micrometers, and comprises 3-10 wt% of PTFE(polytetrafluoroethylene) based on the total weight of the two kind of silicon carbide. The method comprises the steps of dispersing two kind of silicon carbide into a deionized water containing PTFE, respectively; ball-milling the respective dispersion solution for 2-4 hours to obtain two kind of slurry; and mixing the two kind of slurry to prepare the silicon carbide slurry.

Abstract translation: 目的：提供磷酸型燃料电池电解质基体的碳化硅浆料及其制备方法，通过浆料颗粒尺寸的均匀分布来提高燃料电池的性能和使用寿命。 构成：碳化硅浆料包含45-55体积％的粒径为0.1-1微米的碳化硅和45-55体积％的粒径为1-10微米的碳化硅，并且包含3-10 基于两种碳化硅的总重量，PTFE（聚四氟乙烯）的重量％。 该方法包括以下步骤：将两种碳化硅分别分散在含有PTFE的去离子水中; 将各分散液球磨2〜4小时，得到两种浆料; 并混合两种浆料以制备碳化硅浆料。