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RFB는 레독스 커플에 따라 Cr/Cr, V/Sn, V/Fe, 및 V/V 등과 같은 종류 가 있다. 그 중 전 바나듐 레독스-흐름 전지(All-vanadium redox flow battery, VRB)는 긴 수명, 빠른 반응시간, 높은 충방전 효율로 많은 관심 을 받고 있다. 6-8 이온교환막은 VRB의 핵심 소재로 전지의 수명 및 가격 결정에 중요한 역할을 하며 전해질로 전이금속 포함 강산성 물질을 사용하고 있어 선 택투과성은 물론 내산성, 내산화성이 우수해야 하고 전기저항 및 확산계 수가 작고, 내화학성 및 기계적 물성이 우수하고 제조 가격이 저렴해야 한 다. 현재 VRB에 적용하는 이온교환막은 Daramic, Selemion사의 CMV 전바나듐계 레독스-흐름 전지용 Vinylbenzyl Chloride-co-Styrene-co-Hydroxyethyl Acrylate (VBC-co-St-co-HEA) 음이온교환막의 합성 및 특성 백영민ㆍ곽노석ㆍ황택성 충남대학교 바이오응용화학과 (초록: 본 연구에서는 전바나듐 레독스-흐름 전지용 음이온교환막의 제조를 위하여 vinylbenzyl chloride-co-styreneco-hydroxyethyl acrylate(VBC-co-St-co-HEA) 공중합체를 합성하였으며, 아민화 및 가교 반응을 통하여 음 이온교환막을 제조하였다. 구조확인을 위하여 FTIR, 1 H NMR, TGA, GPC 분석을 하였으며, 음이온교환막의 함수율, 이온교환용량, 전기저항, 이온전도도 및 전바나듐 레독스-흐름 전지의 효율을 측정하였다. 음이온교환막의 이온교환용 량, 전기저항, 이온전도도는 각각 1.17 meq/g, 1.9 Ωᆞcm 2 , 0.009 S/cm이었으며, 전바나듐 레독스-흐름 전지 효율 실 험 결과 충ᆞ방전효율, 전압효율 및 에너지효율은 각각 99.5, 72.6, 72.1%이었다.Abstract: In this study, we synthesized vinylbenzyl chloride-co-styrene-co hydroxyethyl acrylate (VBC-co-St-co-HEA) copolymer that can be applied to redox the flow battery process. The anion exchange membrane was prepared by the amination and crosslinking of VBC-co-St-co-HEA copolymer.The chemical structure and thermal properties of VBC-co-St-co-HEA copolymer and aminated VBC-co-St-co-HEA(AVSH) membrane were characterized by FTIR, 1 H NMR, TGA, and GPC analysis.The membrane properties such as ion exchange capacity(IEC), electrical resistance, ion conductivity and efficiency of all-vanadium redox flow battery were measured. The IEC value, electrical resistance, and ion conductivity were 1.17 meq/g, 1.9 Ωᆞcm 2 , 0.009 S/cm, respectively. The charge-discharge efficiency, voltage efficiency and energy efficiency from all-vanadium redox flow battery test were 99.5, 72.6 and 72.1%, respectively.Keywords: anion exchange membrane, water uptake, ion exchange capacity, electrical resistance, allvanadium redox flow battery.

Scenario-based techniques, also known as scenario methods, have been actively employed to resolve intricate problems for engineering complex software systems. Scenarios are powerful tools that allow engineers to analyze the dynamics and contexts of complex systems. Despite the widespread use, there is a lack of a well-established reference framework that systematically organizes key concepts and attributes of scenarios. This has left engineers without a systematic guidance at the method level, hindering their ability to utilize the scenario methods effectively. To address the challenges associated with scenario methods, this study aims to provide a reference framework and modeling method. By conducting a literature review and suggesting a Conceptual Scenario Framework (CSF), we establish a conceptual basis that systematically presents the core concepts and characteristics of scenarios. Additionally, we introduce the Extensible Scenario Modeling Method (ESMM) that empowers engineers to perform scenario modeling and domain-specific extensions using the framework. With the inclusion of the Extensible Scenario Modeling Language (ESML), which comprises domain-general model types and classes for scenario description and ontological analysis, ESMM facilitates flexible design of domain-specific scenario elements through language-level extensions. This study assesses the proposed method in comparison to existing scenario development methods in the automated driving system domain. Through an analysis of their ability to represent scenario data, it was established that the language constructs of ESML possess semantic expressiveness suitable for serving as a reference framework. Furthermore, the findings from the case study validate the extensibility of ESMM for specialization in creating a scenario modeling language tailored to specific domains, while also effectively supporting the ontological analysis of particular application domains.