Silver-Zinc Battery Power System for 2,000m Deep Submergence Research Vehicle "SHINKAI 2000"

The oil-filled pressure-compensated Silver-Zinc Battery System was developed and applied for practical use as a power source of the 2,000m Deep Submergence Research Vehicle"SHINKAI 2000"(DSV-2K). The battery system is made up of 2 main units, each consisting of 72 cells. After successful tests on cells and one main unit, the battery system practically used in the DSV-2K served satisfactorily for almost one year under the no-maintenance conditions and showed the good performance as was expected. The structure, designe considerations and test results are summarized hereunder.