| 摘要 |
PROBLEM TO BE SOLVED: To prevent short circuiting between a current collecting member and a case of a secondary battery. SOLUTION: The secondary battery comprises an electrode assembly 10 comprising a positive electrode 11, a negative electrode 12 and a separator 13 interposed in between the positive electrode 11 and the negative electrode 12; a case 20 housing the electrode assembly 10; a cap assembly 30 fixed to and sealing the case 20; at least the one current-collecting member 40, 50 electrically connected to the positive electrode 11 or the negative electrode 12; and an insulating member 60, disposed between the case 20 and the current collector 40, 50 and insulating the case 20 and the current collector 40, 50, wherein the insulating member 60 is so structured as to surround the end of the electrode assembly 10, or the end of the electrode assembly 10 and the current-collecting member 40, 50 at least at one end of the ends of the electrode assembly 10 where the current collecting member 40, 50 are disposed, and to be attached to the outer periphery of the electrode assembly 10. COPYRIGHT: (C)2005,JPO&NCIPI |
