ELECTROCHEMICAL CELL AND METHOD FOR MANUFACTURING THE SAME

To provide an electrochemical cell.SOLUTION: An electrochemical cell of the present invention has a belt-like positive electrode and a belt-like negative electrode, and comprises: an electrode lamination structure that is configured by winding a laminate obtained by shifting one side end edges and the other side end edges in the width direction of the positive electrode and negative electrode in the width direction by a predetermined width, on both faces of at least one of the positive electrode and negative electrode, with a separator layer composed of a coating hardened layer formed by excluding one side end edge in a width direction or the other side end edge in the width direction of at least one of the positive electrode and negative electrode, so as to circle around an arbitrary winding central axis; a positive electrode side container in which the wound one side end edge in the width direction of the positive electrode is electrically connected to a positive electrode projection projecting outward from the one side end edge of the negative electrode adjacent to the end edge; and a negative electrode side container in which the wound other side end edge in the width direction of the negative electrode is electrically connected to a negative electrode projection projecting outward from the other side end edge of the positive electrode adjacent to the end edge, and that defines an accommodation space for accommodating the electrode lamination structure together with the positive electrode side container.SELECTED DRAWING: Figure 1 【課題】本発明は、電気化学セルの提供を目的とする。【解決手段】本発明の電気化学セルは、帯状の正極と、帯状の負極を有し、正極と負極の少なくとも一方の表裏両面に、正極と負極の少なくとも一方の幅方向一側端縁または幅方向他側端縁を除いて形成した塗膜硬化層からなるセパレータ層を介し、正極と負極をそれらの幅方向一側の端縁と他側の端縁を幅方向に所定幅ずらして重ね合わせた積層体を、任意の巻き中心軸を周回するように巻回して構成された電極積層構造体と、巻回された正極の幅方向一側の端縁に該端縁に隣接する負極の一側端縁より外側にはみ出す正極突出部を電気的に接続した正極側容器と、巻回された負極の幅方向他側の端縁に該端縁に隣接する正極の他側端縁より外側にはみ出す負極突出部を電気的に接続し、正極側容器とともに電極積層構造体を収納する収納空間を画成する負極側容器と、を備えたことを特徴とする。【選択図】図１