TOTAL SOLID PHOTO SECONDARY BATTERY

摘要

PURPOSE:To permanently supply electric power if irradiating by means of solar light or the light of a fluorescent lamp by using n type ZrS2 close to a stoichiometric composition in a positive electrode which is a photoelectrode and using (KxRb1-x) CU4I1.5Cl3.5 in an electrolyte and using the mixture of Cu and Cu2 in a negative electrode. CONSTITUTION:When a solid electrolyte (KxRb1-x)CU4I1.5Cl3.5 (0<=x<0.2) of high Cu+ ion conductivity used in TiS2-Cu+Cu2S total solid secondary battery is used as an electrolyte, and Cu and the mixture of Cu2S and the electrolyte are used as pair electrodes, the problem of light corrosion does not cause. It is thought that the reason why the reaction of the light corrosion is not caused when using a solid electrolyte is as follows: namely, the material moves only Cu ions and therefore it is possible to limit the reaction. There is a limitation in the volume to make by the discharging to ZrS2 and HfS2 and when exceeding the limitation the shape of crystallization is varied to eliminate the reversibility. In order to prevent this, the capacity of the battery is restrained by the negative electrode capacity.