선박 전기추진시스템에 고효율 바나듐 레독스흐름전지 적용에 관한 연구

다국어 초록 (Multilingual Abstract)

Vanadium Redox Flow Battery (VRFB) is well worth considering a powerful candidate technology applicable to electric propulsion systems of vessels because there is no risk of fire or explosion, along with long-term life cycle (> 25,000 cycles) of 20 years or above. However, during electric vessel movement, electrolyte sloshing occurs in the VRFB. In particular, this sloshing problem in electrolyte storage tanks gives rise to the discontinuous electrolyte supply (including air bubbles) inside the VRFB stack, resulting in the overall performance reduction of the VRFB. To address the sloshing movement of electrolyte inside storage tanks, this paper describes a novel tank’s internal structure. Then, the internal structure shapes are designed through modeling and analyzing XYZ axis" angle and angular acceleration (i.e., rolling, pitching and yawing components) in electrolyte sloshing movement. Flow cell cycling experiment results under the harsh condition of 0.5g acceleration show that using the proposed structure leads potentially to high energy efficiency and capacity retention rate, which are closely like those of conventional VRFB flow cell (without harsh condition). This new approach is shown to provide significant possibility and potential of VRFBs in application of electric vehicles and vessels using electric propulsion system.

목차 (Table of Contents)

• Abstract
• I. 서론
• II. 본론
• Ⅲ. 결과
• Ⅳ. 결론 및 향후 연구 방향
• 참고문헌