| 摘要 |
PROBLEM TO BE SOLVED: To provide a battery capable of carrying large current while preventing deterioration of functions of a current interrupting mechanism. SOLUTION: The battery 2 is provided with an electrode body 80 having positive and negative electrodes and housed in a case 3. The battery 2 includes the current interrupting mechanism 4 which interrupts the conduction of the electrode body 80 to the outside of the battery by disrupting a conductive path connecting at least one of the electrodes to an external terminal 30. The conductive path extends from the electrode body side to the external terminal side through a first conductive member 24 and a second conductive member 22, and both the conductive members 22 and 24 are joined together at a weld part W within the case 3. The current interrupting mechanism 4 disrupts the conductive path in the event of a failure of the battery by adding to the weld part W a welding surface-directional force (shearing force), for example, by deformation of a thermosensitive deforming member 32 to thereby break the weld part W. COPYRIGHT: (C)2010,JPO&INPIT
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