| 摘要 |
PURPOSE:To obtain a thin film solid secondary battery in which internal short circuit caused by dissolution-deposition of electrode metal in charge-discharge hardly arises by arranging a positive electrode and a negative electrode so as not to face each other. CONSTITUTION:A positive current collector (made of Au-Cr) 5 is vapordeposited on a glass substrate 6 and a positive electrode (Cu2S film) 3 is formed thereon. A solid electrolyte film (RbCu4I1.5Cl3.5 film) 1 is vapor-deposited on the positive electrode 3, then a copper negative electrode 2 is vapor-deposited and an Au-Cr negative current collector 4 is vapor-deposited, then a covering resin layer 7 is formed. The negative electrode 2 and the positive electrode 3 are arranged in a comb teeth shape so as not to face each other. Therefore, internal short circuit is prevented because the dendritic metal growing from one electrole does not reach the other electrode. |
