| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To stably reduce electric resistance of an upper sealing lid in a sealed battery. <P>SOLUTION: A head part 3bH of a cylindrical part 3b of a cap 3 functions as a cathode terminal, and current flow channels CF are formed between the cylindrical part 3b and each welding part 37d. Each welding part 37d is arranged at the center of a pair of openings 3d in adjacency at the cylindrical part 3b, and the current flow channels CF are formed symmetrically and continuously between the pair of openings 3d between each welding part 37d and a side face of the cylindrical part 3b nearest to that welding part 37d. With this sealed battery, as the symmetrical and continuous current flow channels CF are formed, a length of each current flow channel is shortened to enable to reduce its electric resistance. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
