A kind of coiled battery pole piece, takeup type battery core, battery

The present invention relates to a kind of coiled battery pole pieces, takeup type battery core, battery, belong to battery technology field.Coiled battery pole piece of the invention, electrode material layer including collector and attachment on a current collector, it is characterized in that, the pole piece edge is provided with unattached electrode material layer and is used to be formed the area that is left white of tab, the width for being left white width of the area in pole piece width direction and being less than pole piece.Coiled battery of the invention is electrically connected with pole piece is convenient with the pole on battery cover board, and saves the space of inside battery in two directions.