Patent ID: 8815430
Filing Date: 2014-08-26
Classification: H01M,Y02E,Y02P,Y02T

Abstract:
1. A sealed battery comprising: a lid which closes a container of said sealed battery and covers an upper part of a center of a bare lid with a cap via a valve body to form a safety valve, an upper current collecting plate with an upper surface, and a lead connecting the upper surface to an inner surface of said lid, wherein a welding point of said lead on the inner surface of said lid is outside of a position corresponding to a periphery of said cap, a length of the lead from said welding point of said lead on the inner surface of said lid to a nearest welding point of said lead on said upper surface of said upper current collecting plate is 1 to 2.1 times as large as a shortest distance from said welding point of said lead on the inner surface of said lid to the upper surface of said upper current collecting plate, and the lead comprises the frame portion extends from the first end part in substantially a first direction along a radial direction of the cylindrical lateral wall part, whereas the plurality of supplementary leads extends from the second end part in substantially a second direction along the radial direction, the second direction being opposite to the first direction.