Electrical connection structure for core assembly of secondary lithium battery has bolt that enables conductive pressing piece to be firmly press against and maintained in close electrical contact with positive or negative lead area

摘要

A flexible curved conductive pressing piece (42) with two connecting ends (421) and a connecting portion (423) formed between connecting ends is disposed outside the positive lead area (331) or negative lead area. Bolt (41) is passed through the through hole of conductive pressing piece and fixed on core (31) so that conductive pressing piece is firmly pressed against and maintained in close electrical contact with positive or negative lead area. Connecting portion is electrically connected to positive lead terminal (21) or negative lead terminal of a case.