Abstract: Provided is a fuel cell system using waste hydrogen generated from a sea water electrolyzing apparatus, the fuel cell system including: a sea water electrolyzing apparatus carrying out electrolysis of sea water used as cooling water in a nuclear power generation system to produce a chlorine-containing material; a hydrogen conveying line linked to one side of the sea water electrolyzing apparatus to convey waste hydrogen generated during the electrolysis; and a fuel cell linked to the hydrogen conveying line to generate electricity by using the waste hydrogen supplied from the hydrogen conveying line as fuel. The fuel cell system generates electricity by using waste hydrogen, which, otherwise, is totally discarded after being generated secondarily from the sea water electrolyzing apparatus, as fuel for the fuel cell.
Type:
Grant
Filed:
October 5, 2011
Date of Patent:
November 25, 2014
Assignee:
XFC Inc.
Inventors:
Ju-Hyung Lee, Jong Won Choi, Suk-Won Cha, Ik Whang Chang
Abstract: Provided are a fuel cell system using waste hydrogen from a seawater electrolyzer, a method for producing caustic soda using the fuel cell system and the seawater electrolyzer, a method for producing PVC using chlorine from the seawater electrolyzer, methods for producing ammonia and urea using hydrogen from the seawater electrolyzer, and an integrated system thereof. According to the integrated system, power generation by the fuel cell is combined with a seawater electrolysis process using a membrane, such as a Nafion membrane.
Abstract: Disclosed herein is a flexible fuel cell, including: (i) an anode comprising an anode end plate structure made of a polymer material and provided with a hydrogen flow channel and a collector made of a metal layer deposited on the anode end plate structure; (ii) a cathode comprising a cathode end plate structure made of a polymer material and provided with an air flow channel having air holes and a collector formed of a metal layer deposited on the cathode end plate structure; and (iii) a membrane electrode assembly (MEA) comprising a polymer electrolyte membrane whose surface is coated with a catalyst layer and a gas diffusion layer (GDL) provided on at least one side thereof, wherein the membrane electrode assembly is interposed and pressed between the anode and the cathode.
Type:
Application
Filed:
February 25, 2013
Publication date:
October 3, 2013
Applicants:
XFC Inc., SNU R&DB Foundation
Inventors:
Ik Whang Chang, Tae Hyun Park, Yoon Ho Lee, Suk Won Cha, Ju-Hyung Lee
Abstract: A separator for a fuel cell is provided. The separator comprises a flow path member and a base separator. The flow path member is made of a graphite foil and has a flow path through which fluids pass. The base separator has a seating recess formed on the surface thereof. The flow path member is mounted in the seating recess. The flow path is formed by pressing the graphite foil. The separator can be produced at reduced processing cost in a short processing time.
Abstract: Provided is an electrolyte membrane for solid oxide fuel cells. The electrolyte membrane for solid oxide fuel cells includes two or more deposited layers, wherein each of the deposited layers independently has an average crystal grain size of 5-100 nm and the deposited layers are different from each other in the average crystal grain.
Type:
Application
Filed:
August 23, 2011
Publication date:
December 20, 2012
Applicants:
XFC INC., SNU R&DB FOUNDATION
Inventors:
Ik Whang Chang, Young Seok Jee, Sang Hoon Ji, Yoon Ho Lee, Suk-Won Cha, Ju-Hyung Lee
Abstract: Provided is a fuel cell system using waste hydrogen generated from a sea water electrolyzing apparatus, the fuel cell system including: a sea water electrolyzing apparatus carrying out electrolysis of sea water used as cooling water in a nuclear power generation system to produce a chlorine-containing material; a hydrogen conveying line linked to one side of the sea water electrolyzing apparatus to convey waste hydrogen generated during the electrolysis; and a fuel cell linked to the hydrogen conveying line to generate electricity by using the waste hydrogen supplied from the hydrogen conveying line as fuel. The fuel cell system generates electricity by using waste hydrogen, which, otherwise, is totally discarded after being generated secondarily from the sea water electrolyzing apparatus, as fuel for the fuel cell.
Type:
Application
Filed:
October 5, 2011
Publication date:
April 26, 2012
Applicant:
XFC INC.
Inventors:
Ju-Hyung Lee, Jong Won Choi, Suk-Won Cha, Ik Whang Chang