| 摘要 |
PROBLEM TO BE SOLVED: To overcome the problem in which an organic electrolyte secondary battery is arranged by using an oxide or the like as a negative electrode active material and achieving high safety, while such an organic electrolyte secondary battery is low in output density because of its low battery voltage so it cannot satisfy the criteria for installation on a hybrid vehicle (HV).SOLUTION: In a power storage device according to the present invention, at least one of active material layers of opposing positive and negative electrodes has an electrically non-conducting property; and the other active material layer is put in close contact therewith at an opposite surface with no separator interposed therebetween, which shortens the distance between the electrodes. In addition, reducing the electrodes in thickness, a power storage device of a high output density can be achieved. This is because the area of the electrodes rises in inverse proportion to the electrode thickness efficiently. Therefore, applying the present invention, even an organic electrolyte secondary battery arranged so as to use an oxide or the like as a negative electrode active material will meet the performance criteria as a battery for installation on HV, and will make a safe and inexpensive next-generation battery of high output density for installation on HV.SELECTED DRAWING: Figure 1 |
