Bipolar plate redox flow battery including the bipolar plate and method of manufacture thereof

• Main Authors: CHO, SEONG WHA, KIM, JIN SU
• Format: Patent
• Language: English; Korean
• Published: 07.04.2017
• Subjects: BASIC ELECTRIC ELEMENTS; 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; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

Disclosed are a separation plate for a redox flow battery, a redox flow battery including the separation plate, and a method for manufacturing the separation plate. The separation plate includes a highly conductive area located at the center, and a low conductive area or a non-conductive area surrounding the periphery of the highly conductive area. The difference in electrical conductivity of the highly conductive area with the low conductive area or the non-conductive area is greater than or equal to 25 S/cm^2, the highly conductive area, and the low conductive area or the non-conductive area contain the same synthetic resin, thereby having excellent airtightness and being easily manufactured. Thus, functions of the redox flow battery including the separation plate can be improved. 레독스 플로우 전지용 분리판, 이를 채용한 레독스 플로우 전지 및 상기 분리판의 제조 방법이 개시된다. 상기 분리판은 중앙부에 위치한 고전도성 영역 및 상기 고전도성 영역의 외곽을 둘러싼 저전도성 또는 비전도성 영역을 포함하고, 상기 고전도성 영역과 상기 저전도성 또는 비전도성 영역간의 전기전도도 차이는 25 S/cm이상이고, 상기 고전도성 영역과 상기 저전도성 또는 비전도성 영역에는 동일한 합성 수지가 포함함으로써, 우수한 기밀성을 갖고 제조가 용이할 수 있다. 이에 따라, 상기 분리판을 채용한 레독스 플로우 전지의 성능이 향상될 수 있다.