Abstract
reversible photoelectrochemical system with using of accumulated hydrogen has been developed. Reversibility was ensured by introducing a third electrode based on Cu2S, onto which a metal hydride electrode based on MH alloys was discharged. The photoaccumulator made it possible to obtain a maximum current of 97 mA and Vo.c. ≈ 0.4 V, during the discharge by the MH electrode without illumination. A new feature of the cell design was construction in 3D. Almost all the details of the cell were printed on a 3D printer. It was found that the peak of current during cell illumination was several times higher than the maximum current obtained by the 2-electrode scheme. For consumers with uneven power consumption, such a system is equivalent to a solid state system with more power.
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