Cylinder lithium cell negative -electrode cover plate structure

The utility model provides a cylinder lithium cell negative -electrode cover plate structure. In the negative -electrode cover plate structure of present lithium cell, adopting a copper post to be leading -out terminal in the middle of the negative -electrode cover board, utilizing the riveting, the mode of inflation copper post reaches sealed effect. This kind of structure processing cost is too high, and the copper product uses too much in addition, and material cost is high, and the product leakproofness is not good. The utility model provides a cylinder lithium cell negative -electrode cover plate structure, including aluminum sheet, connecting block, aluminium terminal and the negative pole dish that converges, its characterized in that: still include at least a set of connecting piece, the connecting block is fixed on the aluminum sheet, the connecting piece includes cylindric plug -in section, and this plug -in section wears to establish that the negative pole converges set in proper order, connecting