| 摘要 |
<p>PROBLEM TO BE SOLVED: To maintain sufficient charge performance of a photoelectric conversion element in an optical charge type secondary battery in which a storage battery is charged by the photoelectric conversion element. SOLUTION: An optical charge type secondary battery is provided with a flexible photoelectric conversion sheet 3 composed of a photoelectric conversion element which is wound to be freely drawn out from a cylindrical wound core part 2, a storage battery 4, a control circuit part 5 which controls charge/ discharge of the storage battery 4, and is almost cylindrically formed in the whole size under the wound condition. The battery is constructed such that an upper flange 6 and a lower flange 7 are integrally provided at both end parts of the wound core part 2, a cylindrical outer peripheral wall 51 having a drawn out slit 51a of the photoelectric conversion sheet 3 is freely rotated against the flanges 6, 7, the drawn out photoelectric conversion sheet 3 are structured to be wound at the space in the outer peripheral wall 51 by rotating the outer peripheral wall 51, and a drawn out direction tip part (locking part 3a) of the photoelectric conversion sheet 3 exists an outer part of the slit 51a in a drawn out condition.</p> |
