Patent ID: 9196888
Filing Date: 2015-11-24
Classification: H01M,Y02E,Y02P

Abstract:
1. A rechargeable battery, comprising: a plurality of electrode assemblies disposed at a distance from each other; a first current collecting plate disposed at one side of the plurality of the electrode assemblies; a second current collecting plate disposed at an opposite side of the plurality of the electrode assemblies, the first and second current collecting plates being electrically connected with the electrode assemblies; a case housing the electrode assemblies, the first current collecting plate, and the second current collecting plate; and an electrode terminal provided in the case, and electrically connected with at least one of the first and second current collecting plates, each one of the first and second current collecting plates comprises: wherein each of the electrode assemblies is formed by being wound in a jelly roll shape, and comprises a positive electrode uncoated region disposed at one side of the electrode assembly and a negative electrode uncoated region disposed at an opposite side of the electrode assembly with both the positive and negative electrode uncoated regions formed in a longitudinal direction of the jelly roll shape, said current collecting portion and said connection portion are both disposed in a single geometric plane, said single geometric plane is a two-dimensional flat surface, wherein the electrode assemblies are arranged in a matrix form having a plurality of columns and a plurality of rows, a positive electrode uncoated region of each one of the electrode assemblies and negative electrode uncoated regions of neighboring electrode assemblies along both a column and a row direction of the matrix are disposed at the same side of the electrode assemblies, and the electrode assemblies are electrically connected in series by the first and second current collecting plates.