A battery pack packing box capable of easily fixing a battery pack in a lower case by using a buffering member including an insertion hole into which the upper portion of the battery pack is inserted is provided. The buffering member includes a frame and a plurality of wing-shaped ribs.

A battery module comprises a battery sub-module including one or more battery cells, and a barrier disposed to face one side surface of the battery sub-module, in which the barrier includes a rigid member supporting the battery sub-module, and a heat absorbing member accommodated in the rigid member to absorb heat generated by the one or more battery cells.

A technology that can preferably suppress capacity deterioration of a battery pack is provided. In one preferred mode of a spacer disclosed herein, in a state where the spacer is not disposed between the battery cells, when arbitrary two points on a straight line drawn from a position opposed to a center portion of the electrode body of each of the battery cells to a position opposed to a center portion of an end surface of the positive and negative electrodes-stacked structure are assumed to be a and b in this order in order of closer from the position, average thicknesses between the two broad width surfaces in sections each extending 1.5 cm from a corresponding one of the points a and b as a center in forward and rearward directions along the straight line are assumed to be Da and Db, a relationship Da>Db is satisfied.

A technology that can preferably suppress capacity deterioration of a battery pack is provided. In one preferred mode of a spacer disclosed herein, in a state where the spacer is not disposed between the battery cells, when arbitrary two points on a straight line drawn from a position opposed to a center portion of the electrode body of each of the battery cells to a position opposed to a center portion of an end surface of the positive and negative electrodes-stacked structure are assumed to be a and b in this order in order of closer from the position, average thicknesses between the two broad width surfaces in sections each extending 1.5 cm from a corresponding one of the points a and b as a center in forward and rearward directions along the straight line are assumed to be Da and Db, a relationship Da>Db is satisfied.

Embodiments of the present disclosure provide a battery, a manufacturing method and a manufacturing apparatus thereof, and a power consumption device. The battery includes: at least one battery layer, wherein each battery layer includes a plurality of battery cells disposed side by side in a first direction, and each battery cell in the plurality of battery cells includes a case and an end cover which are connected to each other; and at least one limiting member disposed corresponding to the at least one battery layer and covering the case, so as to limit the corresponding battery layer to move in a third direction, wherein the third direction is perpendicular to the at least one battery layer, the at least one limiting member includes a first limiting member, the first limiting member is provided with a weakened region, and the weakened region is configured to enable the battery cell to release pressure through a region of the case corresponding to the weakened region when an internal pressure of the battery cell reaches a first threshold.

A partition member includes an encapsulated body capable of retaining a liquid, and an outer package body for accommodating the encapsulated body and the liquid. The area S1 of the encapsulated body when the outer package body and the encapsulated body are seen in a planar view from the thickness direction and the area S2 of a gap between the outer package body and the encapsulated body satisfy the relationship represented by formula 1 below, and the volume V1 of the liquid and the volume V2 of the encapsulated body satisfy the relationship represented by formula 2 below.
S1/(S1+S2)≤0.99 and  Formula 1
0.02≤V1/V2≤1.90  Formula 2

A battery pack includes a plurality of battery cells, each battery cell including a terminal surface on which at least one terminal is formed, at least one bus bar disposed on the terminal surfaces and configured to electrically connect different ones of the battery cells, the at least one bus bar including a first surface facing the terminal surfaces, and a second surface opposite to the first surface, and a resin cover formed on the first and second surfaces, and configured to embed the at least one bus bar therein.

An energy storage module according to an aspect of the present invention includes: a plurality of energy storage devices each including a case; a glass paper sheet provided between the energy storage devices, brought into contact with the case, and mainly composed of a glass fiber; and a holding member holding the plurality of energy storage devices and the glass paper sheet, wherein the glass paper sheet is compressed between the energy storage devices.

A power source device includes: a plurality of battery cells each including exterior can formed in a rectangular shape and including opposing main surfaces; insulating heat-shrinkable films covering the plurality of battery cells, respectively; a plurality of separators interposed between the plurality of battery cells; a battery stack formed by stacking the plurality of battery cells with separators interposed therebetween; a pair of end plates disposed on both end surfaces of the battery stack; and a plurality of bind bars disposed on each of opposing side surfaces of the battery stack and fastening the end plates to each other, wherein heat-shrinkable films have expandability in which a maximum expansion amount in a heat-shrunk state is larger than a maximum expansion amount of main surfaces of exterior can at the time of expansion of battery cells.

A power source device includes: a plurality of battery cells each including exterior can formed in a rectangular shape and including opposing main surfaces; insulating heat-shrinkable films covering the plurality of battery cells, respectively; a plurality of separators interposed between the plurality of battery cells; a battery stack formed by stacking the plurality of battery cells with separators interposed therebetween; a pair of end plates disposed on both end surfaces of the battery stack; and a plurality of bind bars disposed on each of opposing side surfaces of the battery stack and fastening the end plates to each other, wherein heat-shrinkable films have expandability in which a maximum expansion amount in a heat-shrunk state is larger than a maximum expansion amount of main surfaces of exterior can at the time of expansion of battery cells.