COMBINATION SECONDARY BATTERY AND SOLAR BATTERY

摘要

A combination structure of a secondary battery and a solar cell is provided to maximize the efficiency of electricity by using the secondary battery in stead of the solar cell in a cloudy or rainy day. Secondary batteries(5) are attached onto rear surfaces of solar cells(3). The size of the secondary battery is the same as that of the solar cell. The size of the secondary battery connected with an external lead wire(7) is smaller than that of the solar cell. A protection layer is interposed between the solar cell and the secondary battery to prevent a direct contact between the solar cell and the secondary battery. The secondary batteries are connected with each other in series or in parallel through a connection ribbon.