Patent ID: 6723465
Filing Date: 2004-04-20
Classification: H01M,Y02E,Y02P,Y10T

Abstract:
A nonaqueous electrolyte battery comprising:an electrode body having at least a positive electrode and a negative electrode; a cylindrical container with its bottom closed, in which said electrode body and a nonaqueous electrolytic solution are contained; and a sealing lid group, the sealing group comprising a lid body for closing an opening portion of said container and a disk-shaped inner lid body which is disposed opposite the electrode body; wherein said lid body has a lid portion which constitutes a peripheral edge portion of said lid body, a projecting portion which constitutes a central portion of said lid body, and a stepped portion which has a vent hole and is positioned between said lid portion and said projecting portion; and a metal plate which laterally extends into said lid body, said metal plate having a through-hole at a central portion of said metal plate to restrict a flow of decomposition gas, said metal plate being disposed between said lid body and said inner lid body.