Importance

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Abstract

A rechargeable photovoltaic cell. In one embodiment the photovoltaic cell includes a first electrode with a transparent substrate having a porous high surface area titanium dioxide layer thereon, and including a light absorbing dye. The rechargeable cell also includes a second electrode which includes a transparent electrically conductive substrate arranged in spaced apart relationship with the first electrode so as to define a gap with the first electrode. A re-sealable seal provides access to the gap from the exterior of the cell. An electrolyte solution is located within the gap. Another aspect of the invention relates to a method of recharging a photovoltaic cell. In one embodiment the method includes draining the first electrolyte solution from gap in the photovoltaic cell, flushing the first electrolyte solution from the gap, drying the gap, and filling the gap with a second electrolyte solution all through a re-sealable seal.

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First Claim