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고상수소저장체 기반 고출력 수소저장시스템 : From Concept to 20 kW On-board System
이재용(Jaeyong Lee),김평순(Pyungsoon Kim),서지희(Jihui Seo),김한진(Hanjin Kim),박지혜(Jihye Park),장지훈(Jihoon Jang),곽재원(Jaewon Kirk),김윤도(Yoondo Kim),정향수(Hyangsoo Jeong),김용민(Yongmin Kim) 한국자동차공학회 2023 한국자동차공학회 부문종합 학술대회 Vol.2023 No.5
In resent automobile industry, the research for increasing hydrogen storage density, compared to the compressed hydrogen method, is being conducted for stable hydrogen storage and improvement of mileage in various on-board systems including fuel cell electric vehicles (FCEVs). Sodium Borohydride (NaBH4, SBH) is a solid-state hydrogen storage material which is possible to generate hydrogen instantly by adding water and acid catalysts. SBH is possible to store hydrogen stably at room temperature and ambient pressure. (10.8 wt.%, theoretically) In this study, we investigated the reaction conditions for increasing the amount of hydrogen extraction. Based on this result, we designed a reactor system that can control heat and pressure during the dehydrogenation reaction to secure driving a 20 kW fuel cell. Through this study, we present the possibility of the on-board hydrogen storage system with a higher hydrogen storage density and power.