The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 13, 2012
Filed:
Nov. 06, 2007
Byungchul Jang, Daejeon, KR;
Young Taek Kim, Seoul, KR;
Jung-eun Yang, Daejeon, KR;
Youngsu Jiong, Daejeon, KR;
Dong Hwan Ryu, Cheongju, KR;
Min-ho Seo, Busan, KR;
Byungchul Jang, Daejeon, KR;
Young Taek Kim, Seoul, KR;
Jung-Eun Yang, Daejeon, KR;
Youngsu Jiong, Daejeon, KR;
Dong Hwan Ryu, Cheongju, KR;
Min-Ho Seo, Busan, KR;
Hanwha Chemical Corporation, , KR;
Abstract
The present invention discloses a process for preparing catalyst solution for a membrane-electrode assembly in a fuel cell, which comprises the steps of a) mixing a catalyst solution (Solution A) wherein catalyst particles are dispersed in water and an ion conductive resin solution (Solution B) wherein an ion conductive resin is dissolved in water, low boiling point organic solvent or a mixture thereof, to form a dispersion; b) mixing the dispersion obtained from step a) with functional additive dissolved in high boiling point solvent or a mixture of low boiling point solvent arid water (Solution C) to prepare catalyst ink dispersion; and c) aging the catalyst ink dispersion obtained from step b).