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Electric power storage is an important technology for all equipments of underwater vehicles however environmental pressure is high, the temperature is 5 degrees Celsius or less, and conditions are unsuitable for many chemical reactions in the deep sea. Battery capacity is mainly dependent on its mass; this means that the cruising range of underwater vehicles is proportional to the mass of the battery...
A large-capacity lithium-ion battery of 1 kWh (300 Ah) class was fabricated by using LiCoO 2 and natural graphite as the cathode and anode materials, respectively, and LiPF 6 as the electrolyte to develop industrially usable batteries for energy source. Our battery delivered an energy density of 60 Wh/kg (133 Wh/l) with weight and volume of a container included with a cycle life of...
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