| 摘要 |
PROBLEM TO BE SOLVED: To provide an electrode capable of alleviating stress concentration at a rivet tip side in an electrode fixed by caulking. SOLUTION: The electrode 21 is provided with a metal rivet 51 to be as a conductive part, extending from inside of a chassis of a battery module, and enlarging a tip by caulking in outside of the chassis of the battery module, and a metal terminal 41 having a part provided with a through-hole and fixed to the chassis of the battery module by penetration of the rivet 51 through the through-hole. At least a tip side of the rivet 51 of the through-hole of the metal terminal 41 is made as a tapered hole to be enlarged toward a tip side of the rivet 51. COPYRIGHT: (C)2008,JPO&INPIT
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