| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a power storage device for attaining higher operation voltage and higher energy density. <P>SOLUTION: A cathode 1 and an anode 2 are made in a form of a belt and the cathode 1 is pinched by separators 9, 9 and set opposed to the anode 2. The cathode 1, the anode 2 and the separators 9, 9 are wound around in an ellipsoidal shape. The cathode 1 is constituted by providing cathode layers each including a cathode active material on either side of a collector member formed of a conductive belt-like material, and the anode is also constituted by providing anode layers each including an anode active material on either side of a collector member composed of the same material. Graphite is used as the cathode activate material, and a metal oxide for absorbing cations contained in electrolyte solution is used as the anode activate material. Further, the electrolyte solution composed of nonaqueous solvent with LiPF<SB>6</SB>dissolved is filled in. <P>COPYRIGHT: (C)2010,JPO&INPIT |
