SECONDARY BATTERY PACK USING SEAWATER

이차 배터리 팩은, 양극 용액이 저장된 하우징과, 양극 용액에 침전된 복수의 음극 셀과, 양극 용액에 침전된 복수의 음극 셀 사이에 각각 배치되며, 상기 양극 용액과 충전 및 방전을 위한 양극 반응을 발생시키는 복수의 양극집전체를 포함하고, 복수의 양극집전체는, 배치된 방향을 기준으로 중앙에 배치된 양극집전체에서의 양극 반응이 외곽에 배치된 양극집전체에서의 양극 반응보다 크게 마련된다. This secondary battery pack comprises: a housing in which a positive electrode solution is stored; a plurality of negative electrode cells precipitated in the positive electrode solution; and a plurality of positive electrode current collectors which are disposed between the plurality of negative electrode cells precipitated in the positive electrode solution and induce, with the positive electrode solution, positive electrode reaction for charging and discharging, wherein, with respect to the direction in which the plurality of positive electrode current collectors are arranged, the positive electrode current collector disposed at the center exhibits stronger positive electrode reaction compared to the positive electrode current collector disposed at the periphery. The present invention project was carried out by 4 to One co., ltd. as part of a national research and development program by the Ministry of Trade, Industry and Energy, and the project management organization is the Korea Institute of Energy Technology Evaluation and Planning. The project identification number is 1415176304, the project number is 20215610100040, the research task title is "Development of High-Capacity Secondary Seawater Battery and MWh-scale ESS Technology (R&D)", and the research project title is "Technology Development of 20Wh or Higher-Capacity Unit Cell for Secondary Seawater Battery".