The battery rack includes a plurality of battery packs vertically arranged, each battery pack including a plurality of secondary batteries stacked in a direction, and a pack housing having an internal space to receive the plurality of secondary batteries and configured to be supplied with a fire extinguishing liquid when an internal temperature equals or rises above a predetermined temperature, and a rack case having a receiving space to receive the plurality of battery packs, and including a plurality of rack plates, each having a mounting surface on which the battery pack is mounted, the mounting surface sloping at a predetermined angle with declining height as it goes in any one direction, and an extension portion having an end of any one direction extending further outward than the lower battery pack.

A power storage module including: a stacked body that includes electrodes stacked along a first direction; a sealing body that includes a first sealing portion joined to an edge portion of each of the electrodes, forms an inner space between the electrodes adjacent to each other, and seals the inner space; and an electrolytic solution that is stored in the inner space and includes an alkali solution. The electrodes include bipolar electrodes, and a negative terminal electrode. The power storage module includes surplus spaces different from the inner space on a route of an alkali creep phenomenon in which the electrolytic solution reaches the outside from the inner space through the negative terminal electrode.

The present disclosure relates to an end cover assembly, a battery cell, a battery pack and a device. The end cover assembly includes a cover assembly, a terminal assembly, a sealing piece and a first connected flow channel. The cover assembly is provided with an installation hole, and the installation hole penetrates through the cover assembly along an axial direction of the installation hole; the terminal assembly is installed in the installation hole; the sealing piece is configured to seal the installation hole; the first connected flow channel is arranged in at least one of the terminal assembly and the cover assembly, and the first connected flow channel is configured as follows: when the sealing of the sealing piece is invalid, the first connected flow channel enables the inside and the outside of the housing to be communicated through the installation hole.

A battery pack includes a bottom plate, a first beam, a frame, and a battery assembly having at least two batteries. A height of the frame is greater than a height of the first beam, the height of the first beam is a distance between a side of the first beam away from the bottom plate and the bottom plate, and the height of the frame is a distance between a side of the frame away from the bottom plate and the bottom plate. The battery assembly is disposed at an accommodating portion between the frame and the first beam, and has a first end and provided with a first explosion-proof valve, and a second end provided with a second explosion-proof valve. A distance from the second explosion-proof valve to the bottom plate is greater than that from the first explosion-proof valve to the bottom plate.

An end cap assembly, a battery cell, a battery, and an electrical device are provided. The end cap assembly is applicable to a battery cell. The end cap assembly includes: an end cap body; a pressure relief component, connected to the end cap body, where a first through-hole configured to inject an electrolytic solution is made on the pressure relief component, and the pressure relief component is configured to be actuated when an internal pressure of the battery cell reaches a threshold, so as to release the internal pressure of the battery cell; and a closing component, detachably disposed on the pressure relief component, where the closing component is configured to close the first through-hole.

The flat-shaped battery of the present invention comprises a battery container provided with an outer can and a sealing plate, and a positive electrode, a negative electrode, a separator, and an electrolyte solution are enclosed in the battery container. The positive electrode is housed in the outer can, and a porous electrolyte solution absorber is inserted between the positive electrode and an inner bottom surface of the outer can. Also, the method for manufacturing a flat-shaped battery, including: disposing an electrolyte solution absorber on an inner bottom surface of the outer can; disposing the positive electrode on the electrolyte solution absorber; and injecting the electrolyte solution into the outer can after disposing the electrolyte solution absorber, before or after disposing the positive electrode. A porous body having a porosity of 40 to 90% is used as the electrolyte solution absorber.

A battery pack assembly for use in an aircraft is disclosed. The battery pack assembly may include at least a battery cell, wherein the battery cell may include a pair of electrodes, a pair of conductive foil tabs and an electrolyte. The battery pack assembly may include a battery cell case, wherein the battery cell case is configured to surround at least a portion of the at least a battery cell, wherein the battery cell case may include a layer, wherein the layer is configured to provide a pressure against the at least a battery cell.

A battery for a drive of a motor vehicle includes at least one energy reservoir, a housing, an interior, and a diffuser element. The housing surrounds the interior and the energy reservoir is arranged in the interior. The diffuser element is attached to an exterior of the housing. The diffuser element includes a plurality of diffuser outlets, a plurality of side faces, and a head face. The side faces are arranged between the housing and the head face. A housing outlet is arranged in the housing, which outlet is configured so as to discharge gas out of the interior in an outgoing direction to the diffuser element. The outgoing direction is directed from the housing outlet towards the head face. The diffuser outlets are arranged on the side faces.

The present application can provide a battery module case applicable to an automation process, a battery module comprising the same, a battery pack comprising such a battery module and an automobile comprising such a battery module or pack. The present application can provide a battery module at low cost by applying an automation process.

An apparatus includes a battery stack including a plurality of alternating anodes and cathodes, wherein each of the anodes is positioned between first and second separators, and wherein a tab of the anode extends out from between the first and second separators, and an edge tape extending across a top of the first and second separators.