Energy storage device i.e. slurry tank, for use in e.g. lakes, to store energy, has body immersed into substance, and floating body located in diving location, where force acts on floating body for lifting up/pulling down of immersed body

摘要

The device has a body filled with a substance and immersed into another substance by a pulley principle, where the latter substance has higher density than that of the substance in the immersed body. A floating body is located in a diving location, where a lifting force acts on the floating body for lifting up/pulling down of the immersed body.