| 摘要 |
PROBLEM TO BE SOLVED: To provide an all-solid type secondary battery arranged with a material which makes easier to check the sinterability of a solid electrolyte.SOLUTION: An all-solid type secondary battery 1 comprises: a laminate part arranged by laminating a positive electrode layer 31 and a negative electrode layer 32 through a solid electrolytic layer 21; and a protection layer 11, 12 formed on at least one side of the laminate part and including a solid electrolyte. In colorimetry/color-difference measurement in which presentation is made by L*a*b*color system, the protection layer 11, 12 shows a color value L* of 10-90 and a chroma (a*×a*+b*×b*)of 10 or larger. A method for manufacturing an all-solid type secondary battery comprises the steps of: manufacturing a green sheet of a solid electrolyte; forming a positive electrode layer on the green sheet; forming a negative electrode layer on the green sheet; laminating the green sheet which will make a protection layer 11, 12; manufacturing a pre-baking block; and baking the pre-baking block. In the method, the green sheet which will make the protection layer 11, 12 includes at least one element selected from V, Cr, Mn, Fe, Co, Ni, Cu and B.SELECTED DRAWING: Figure 1 |
