| 摘要 |
PROBLEM TO BE SOLVED: To easily attain forming in a thin type of an angular battery. SOLUTION: A battery constitutional unit 21 is formed in a structure such that a positive electrode active material layer 23 is formed in a prescribed part in an upper surface of a squared insulation board 22 and a negative electrode active material layer 24 is formed in a prescribed part in a lower surface of the insulation board 22. A solid electrolyte layer 25 is interposed respectively between the four layered battery constitutional units 23. In a left end part outside of the four battery constitutional units 21, a positive electrode connection part 27 composed of conductive high polymer is formed to be connected to the four positive electrode active material layers 23 by dip coating. Here, by only dip coating, the positive electrode connection part 27 connected to the four positive electrode active material layers 23 can be formed. Also a negative electrode connection part 28 can be similarly formed. A positive electrode terminal layer concurrently as a sheathing unit 31. is provided in an upper surface of the positive electrode active material layer 23 in the uppermost layer, a negative electrode terminal layer concurrently as a sheathing unit 32 is provided in a lower surface of the negative electrode active material layer 24 in the lowermost layer, a sheathing unit 33 composed of resin is provided in a peripheral side surface of the total unit. |
