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민수용 ESS 화재사례를 고려한 잠수함용 리튬전지체계 안전성 설계 및 검증
연제길(Jaegil Yeon),류지훈(Ji-Hoon Ryu) 한국해군과학기술학회 2023 Journal of the KNST Vol.6 No.3
Most conventional submarines are trying to increase their storage capacity to stay submerged for longer periods without a snorkel. In Korea, the Jang Bogo-III Batch-II class, which is currently under construction, will be equipped with lithium batteries to increase storage capacity. Compared to lead-acid batteries, lithium batteries can store large amounts of energy and are advantageous in terms of durability as well as maintenance. . In this respect, this study presents a safety design plan and verification results so that a large amount of lithium batteries can be stably operated in a special and limited space such as a submarine.
연제길(Jaegil Yeon),류지훈(Ji-Hoon Ryu) 한국해군과학기술학회 2024 Journal of the KNST Vol.7 No.1
The Jang Bogo-III Batch-II class submarine, which has been under construction since 2019, is scheduled to be equipped with lithium-ion batteries as storage batteries. Lithium-ion batteries have the advantage of having higher energy density and electromotive force compared to other secondary batteries and are easy to charge and discharge, but they have the inherent risk of explosion and fire due to physical damage, temperature rise, and thermal runaway due to chemical defects. Therefore, in order to operate a large amount of lithium batteries in a submarine that operates isolated at sea, an effective fire safety device is required. In this regard, this study introduces the development status and field demonstration results of a module-based fire extinguishing device that can be completely controlled even in the event of a lithium-ion battery fire to enable stable operation of large quantities of lithium-ion batteries in Submarine.