| 摘要 |
PROBLEM TO BE SOLVED: To provide a nonaqueous secondary battery capable of sealing an organic electrolyte on the inside and easily adapting to an assembled battery by stacking a positive active material film, a negative active material film, and a current collector film on each surface of a porous separator base plate, and covering them with an insulator film. SOLUTION: A positive active material film 2 using a lithium cobalt compound oxide as the active material and a negative active material film 3 using graphite as the active material are formed on each surface of a separator base plate 1 made of porous glass through which an electrolyte in an electrolyte solution can move between positive and negative electrodes. A positive current collector film 4 made of aluminum is formed on the positive active material film 2 and a negative current collector film 5 made of copper is formed on the negative active material film 3. The positive and negative current collector films 4, 5 are completely covered with an insulating film 6 made of epoxy resin except for opening parts 7 of positive terminals 8, 9 for taking out current to the outside, and an organic electrolyte is sealed on the inside of the insulating film 6. A nonaqueous secondary battery with high safety and easy handling capability is obtained, and taking out, replacement, and reassembling of a unit cell within an assembled battery are freely made. |
