| 摘要 |
PROBLEM TO BE SOLVED: To provide a sealed battery with low inner resistance and excellent output characteristics, equipped with a wound electrode plate group. SOLUTION: In the sealed battery equipped with a wound electrode plate group, with a disc-like upper collector plate 4 jointed on an end face of a long-side end part of an electrode plate made protruded on one of the wound-around end face of the wound-around electrode plate group, and with the upper collector plate and a sealing plate 8 connected through a collector lead 5, a wall face 8' of a translucent hole fitted to the sealing plate makes up a part of side face of a cylinder or a circular cone divergent toward an inner part of the battery, and a part of the upper collector plate makes up a stuck-out part 4" sticking inward from a line where a side face of the cylinder or the circular cone made by the wall face of the translucent hole crosses a plane made by the upper collector plate. COPYRIGHT: (C)2007,JPO&INPIT
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