Structure of bipolar plate having micro-channel for fuel cells and a method for producing the same

• Main Authors: LI, SHUO-REN, CHEN, YU-BANG, HUANG, JING-HAN
• Format: Patent
• Language: Chinese; English
• Published: 01.10.2006
• 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

Disclosed is a structure of bipolar plate having micro-channel for fuel cells and a method for producing the same. The structure contains a pair of bipolar plates and a catalyze locating in between these plates. Each bipolar plate is installed with a gas inlet and a gas outlet to allow flowing in-and-out of the gas. In addition, a main channel is set connecting the inlet and outlet so as to enable the gas to flow upon the bipolar plate. A plurality of partitions is installed side-by-side into segments within the main channel of which each partition has a plurality of micro channels. Each micro channel is connecting to two neighboring segments of the main channel. The method disclosed in this invention includes: preparation process, first layer fabrication process, second layer fabrication process, and completion process. This invention is able to increase the contact area of gas, improve the effectiveness of drainage system, and furthermore upscale the production volume.