The present invention provides a sequential and efficient method of assembling a battery with a desired number of layers while reliably separating positive and negative electrode sides from each other with one or more separator structures. According to the invention, the method of assembling a battery includes stacking one or multiple combinations each comprising a frame and a positive electrode plate to be disposed in a region defined by the frame and one or multiple combinations each comprising a frame and a negative electrode plate to be disposed in a region defined by the frame, once or alternately, such that the positive and adjacent negative electrode plates are separated from each other by a separator structure and the periphery of the separator structure is held between the adjacent frames. The separator structure includes a separator exhibiting hydroxide ion conductivity and water impermeability.

A battery module including a battery cell stack, which includes a plurality of battery cells stacked in a stacking direction, a housing for the battery cell stack, a busbar that is connected with the electrode lead of the battery cell, a busbar frame that faces the front surface or rear surface of the battery cell stack and has the busbar mounted on a surface thereof, an end plate that is coupled with the housing and covers the busbar frame, and a cooling member that is located in a separation space between the busbar frame and the end plate. The cooling member includes a thermal conductive resin.

A battery device comprises a nonaqueous electrolyte secondary battery provided with an electric power generating element and a pressing member which presses the electric power generating element in the stacking direction. The electric power generating element comprises: a positive electrode with a positive electrode active material layer of a positive electrode active material on the surface of a positive electrode collector; a negative electrode with a negative electrode active material layer of a negative electrode active material on the surface of a negative electrode collector; and a separator which holds an electrolyte solution. This battery device satisfies (1) 0.1<(T1?T2)/T1?100<5, where T1 is the thickness of the thickest portion of the electric power generating element in the stacking direction, and T2 is the thickness of the thinnest portion of the of the electric power generating element in the stacking direction.

Provided is a battery pack. The battery pack includes: a battery cell including a cell vent; frames arranged together with the battery cell in a direction and coupled together to face each other with the battery cell therebetween, the frames including guide ribs surrounding the cell vent; and a top cover arranged above the frames to cover the frames and including a protruding barrier wall surrounding the guide ribs. According to the present disclosure, the battery pack has an improved vent structure to rapidly discharge gas generated in an abnormal battery cell to the outside of the battery pack.

A battery-cooling device for a vehicle is provided The device includes a plurality of frames provided with battery cells mounted thereto and having apertures provided in opposite side surfaces of lower ends of the frames. A pipe is inserted through the apertures. A coolant inlet is mounted on a first side surface of a lower end of each of the plurality of frames and communicates with a first end of the pipe. A coolant is introduced into the coolant inlet. Additionally, a coolant outlet is mounted on a second side surface of the lower end of each of the plurality of frames and communicates with a second end of the pipe. The coolant is then discharged from the coolant outlet

A battery pack 10 includes a battery module 1, and a battery case 30 that houses the battery module 1. The battery module 1 includes a cell stack 2 configured by stacking a plurality of cells 21, a pair of end plates 3 provided at both end portions of the cell stack 2 in a stacking direction, and a bottom plate 6 on which the cell stack 2 and the pair of end plates 3 are mounted. Plate fixing portions 62 of the bottom plate 6 of the battery module 1 are fixed to a bottom portion 31 of the battery case 30, and the plate fixing portions 62 are disposed in a region of the cell stack 2 and the end plates 3.

A method of assembling a battery cell stack includes providing a plurality of cell handling stations disposed around a transport system. The transport system is operable to move each of the stack locations past each of the plurality of cell handling stations once during a transport cycle. The plurality of cell handling stations includes a number of group preparation stations. One of a plurality of battery cells of one of a plurality of cell groups is positioned on each respective stack location with each respective group preparation station during each transport cycle. The transport system is moved through a pre-defined number of transport cycles.

A battery assembly includes a heat exchange device including a first conduit with a channel and a heat exchange plate contiguous with the first conduit. A unified frame having at least one wall is configured to at least partially encapsulate the heat exchange device. A first electrode stack is positioned at the first side of the heat exchange plate and configured to fit within a first cavity defined by the at least one wall and the first side of the heat exchange plate. In one example, the first conduit of the heat exchange device is embedded within the at least one wall. In another example, the first conduit extends along the at least one wall, the first conduit being outside of the first cavity. A method of forming the battery assembly may include forming the heat exchange device and joining a unified frame.

A power storage module includes an electrode laminate including a plurality of bipolar electrodes which are laminated and a sealing body sealing a space between a pair of the bipolar electrodes adjacent to each other in a laminating direction among the plurality of bipolar electrodes in the electrode laminate. Each of the plurality of bipolar electrodes includes an electrode plate. The sealing body includes a group of primary sealing bodies each provided at an edge portion of the electrode plate and a secondary sealing body. The secondary sealing body includes a first resin portion that is provided along a side surface of the electrode laminate extending in the laminating direction and bonds the group of primary sealing bodies, and a second resin portion covering the first resin portion.

Disclosed are a battery module and a battery pack including the same. The battery module includes a frame; and a plurality of battery cells disposed at the frame, and the plurality of battery cells are arranged in a single layer with respect to the frame.