| 摘要 |
PROBLEM TO BE SOLVED: To provide an all-solid lithium ion secondary battery, of which downsizing and thinning are possible, discharge capacity is large, and manufacturing is easy, and to provide a manufacturing method thereof.SOLUTION: In the all-solid lithium ion secondary battery in which a positive electrode end part electrode 8 and a negative electrode end part electrode 9 are installed on a laminate 21 wherein positive electrode layers 1 and negative electrode layers 2 are alternately laminated via solid electrolyte layers 3, the positive electrode end part electrode 8 connected to the positive electrode layer 1 and the negative electrode end part electrode 9 connected to the negative electrode layer 2 have a structure that an active material is carried on a conductive matrix made of a conductive material, and a ratio (S/S) of an area (S) of a conductive material region to an area (S) of an active material region on the cross-section of the positive electrode end part electrode 8 and the negative electrode end part electrode 9 is within a range of 90:10 to 40:60. |
