Patent ID: 9017859
Filing Date: 2015-04-28
Classification: H01M,Y02E,Y02P

Abstract:
1. A secondary battery structure at least comprising: a jar body; a conductive stacked structure configured in the jar body, the conductive stacked structure at least comprising a battery unit, wherein the battery unit comprises a jelly-roll, a central rod located at a center of the jelly-roll, and a plurality of conductive tabs respectively connected to an anode and a cathode of the jelly-roll; two end covers respectively fixed at two ends of the jar body, wherein the end covers are assembled to the jar body by inward compression to eliminate dimension errors of the conductive stacked structure in the jar body, and a diameter of each of the end covers is smaller than or substantially equal to an inner diameter of the jar body; and two battery terminals respectively penetrating the two end covers, wherein the central rod of the battery unit comprises a first terminal and a second terminal, one of the conductive tabs connected to the anode of the jelly-roll is sandwiched by the first terminal and one of the two battery terminals, and one of the conductive tabs connected to the cathode of the jelly-roll is sandwiched by the second terminal and the other one of the two battery terminals, wherein the first and second terminals are made of a non-conductive material.