Bipolar plate and fuel cell using the same

• Main Author: LEE SEUNG-JAE,CHOI KYOUNG-HWAN,CHANG HYUK
• Format: Patent
• Language: English
• Published: 29.11.2006
• Subjects: BASIC ELECTRIC ELEMENTS; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

A bipolar plate and a fuel cell using the same are provided. The bipolar plate includes a flow field that has a length between three and eight times greater than the square of the area of the bipolar plate. The fuel cell includes a first bipolar plate in which a fuel flow field having a length that is between three and eight times greater than the square of the area of the first bipolar plate is formed, and a second bipolar plate in which an air flow field having a length that is between three and eight times greater than the spare of the area of the second bipolar plate is formed. The fuel cell has a lower, uniform internal pressure and can produce a greater power.