Patent ID: 9373825
Filing Date: 2016-06-21
CPC Classification: H01M,Y02E,Y10T

Claim Text:
1. A cell, comprising: an electrode assembly; a battery case that includes an opening portion at one end so as to accommodate the electrode assembly inside thereof, the opening portion including a peripheral edge portion that includes an outer peripheral edge; a cover plate that closes the opening portion of the battery case, a peripheral edge portion of an outer surface of the cover plate and the peripheral edge portion of the opening portion of the battery case along a portion of the peripheral edge portion inside the outer peripheral edge in a thickness direction of the peripheral edge portion of the opening portion being welded together to form a weld line; a connection terminal that is arranged on the outer surface of the cover plate and electrically connected with a connection object; a connection member that is inserted through the cover plate to electrically connect the connection terminal and the electrode assembly; an insulating gasket that is interposed between the cover plate and the connection terminal; and a shielding member that includes at least a portion that is arranged between the weld line and a portion of the insulating gasket adjacent to the weld line to be located in a vicinity of the weld line, wherein the shielding member is arranged on an upper side of the cover plate, wherein a distance from the outer surface of the cover plate to an upper end of an outer peripheral surface of the insulating gasket is greater than a distance from the outer surface of the cover plate to an upper end of an outer peripheral surface of the shielding member, wherein the shielding member is formed in an annular shape, and externally fitted to the insulating gasket, and wherein an inner periphery of the shielding member and an outer periphery of at least a portion of the insulating gasket to which the shielding member is externally fitted are formed in a non-circular shape having a same or a substantially same size.