JP2019102165A5 - - Google Patents

Claims (6)

Predetermined and the the edge of the electrode plate formed by arranging the primary sealing body primary sealing body with a bipolar electrode of the bipolar electrode having a negative electrode together on the other side with a positive electrode on one side of the electrode plate, and a separator are alternately An intermediate laminate forming step of forming an intermediate laminate by laminating several layers;
Welded overhanging portion between the primary sealing body protruding from the edge of the electrode plate in the primary sealing body with a bipolar electrode in the intermediate laminate, to form a primary seal welded body to the intermediate laminate A primary sealing step,
The intermediate laminate the primary sealing welded body is formed, by laminating the other intermediate laminate or the primary sealing body with a bipolar electrode wherein the primary sealing welded article has been formed to form an electrode stack An electrode laminated body forming step,
In the electrode stack, such that the primary sealant of the intermediate laminate the primary sealing welded body is formed with another of the primary sealing body is coupled, the two on the sides of the electrode stack A method of manufacturing an electricity storage module, comprising a secondary sealing step of forming a next sealing body. 2. The method for manufacturing an electricity storage module according to claim 1, wherein, in the step of forming the intermediate laminate, the primary sealing body arranged on the edge of the electrode plate is welded to the edge of the electrode plate in advance. The power storage module according to claim 1, wherein, in the secondary sealing step, the secondary sealing body is welded to the primary sealing body by forming the secondary sealing body by injection molding of a resin. Production method.   The electricity storage module according to any one of claims 1 to 3, wherein, in the electrode layered body forming step, the electrode layered body is formed including the intermediate layered body in which the number of stacked bipolar electrodes with the primary sealing body is different from each other. Manufacturing method. In the said primary sealing process, welding of the overhang|projection parts of the said primary sealing body and welding between the said primary sealing body and the said electrode plate are implemented simultaneously. A method of manufacturing an electricity storage module according to item. A plurality of bipolar electrodes having a positive electrode on one surface of the electrode plate and a negative electrode on the other surface , and an electrode laminate in which separators are alternately laminated,
A sealing body that seals between the bipolar electrodes adjacent to each other in the stacking direction in the electrode stack,
The sealing body has a primary sealing body provided at an edge portion of an electrode plate that constitutes the bipolar electrode, and a secondary sealing body that couples the primary sealing bodies to each other,
The primary sealing body has a protruding portion protruding from the edge of the electrode plate,
The electrode laminated body is provided with a primary sealing welded body in which protruding portions of the primary sealing bodies adjacent to each other in the stacking direction are welded to each other, and the primary sealed bodies including the primary sealing welded body An electric storage module in which the secondary encapsulant is formed on a side surface of the electrode laminate so as to be coupled to each other.