In a battery pack, a plurality of cells are arranged, the cells each have an outlet through which gas generated in the cell is released in one direction, each two of the cells are arranged as one unit, and the each two of the cells are arranged such that directions of gas released through the outlets of the two cells are opposite to each other.

A battery case for mounting under a floor of a vehicle comprises a case body containing a battery module and a cover for closing over an opening of the case body. A reinforcement member for reinforcing the case body is attached to an outer surface of the case body. The case body is provided with a gas circulation hole for letting a gas flow from within the case body into the reinforcement member. The reinforcement member is provided with a gas exhaust port for letting out the gas having flown into the reinforcement member.

A secondary battery includes a case, a cap plate, and a vent portion. The case accommodates an electrode assembly therein and has an open top. The cap plate seals the top of the case. The vent portion is at one area of the cap plate. A porous safety member is at a position adjacent to the vent portion.

An energy storage apparatus includes one or more energy storage devices and an outer housing that houses the one or more energy storage devices. The outer housing includes a communication part defining a passageway allowing communication between an interior and an exterior of the outer housing, and the communication part includes a functional membrane that allows passage of gas and prohibits passage of liquid.

A vehicular lead storage battery according to the present invention includes a battery container provided with at least one cell chamber; and a cover plate 1 for covering an upper opening of the battery container. A guide path 8 for discharging gases within a cell chamber to the outside is formed in the cover plate 1. The guide path 8 includes a first guide portion 9B for horizontally guiding gases from the cell chamber; a second guide portion 9C connected to the first guide portion 9B to downwardly guide the gases from the first guide portion 9B; and a third guide portion 10A connected to the second guide portion 9C to horizontally guide the gases from the second guide portion 9C and discharge the gases from an exhaust vent 4K formed in the cover plate 1 to the outside. A corner portion 9K is formed by the first guide portion 9B and the second guide portion 9C, and a corner portion 10K is formed by the second guide portion 9C and the third guide portion 10A. The guide path 8 is formed so that the angle θ of a straight line L having internal contact with the two corner portions 9K and 10K from a horizontal line is greater than the maximum angle of inclination at which the inclined angle of a vehicle is maximum during driving on a sloping ground.

A non-aqueous electrolyte secondary battery (10) proposed herein includes an electrode assembly (40), an electrolyte solution (80), and a battery case (20). The battery case (20) accommodates the electrode assembly (40) and the electrolyte solution (80). A membrane (201) capable of selectively releasing a hydrogen gas is provided on a portion of the battery case (20) so as to separate the interior and the exterior of the battery case (20).

The present disclosure relates generally to the field of lead-acid batteries. More specifically, the present disclosure relates to handle retention features that are integrated into the packaging of lead-acid batteries. A disclosed lead-acid battery includes a battery handle assembly having a woven fabric strap with a pair of tabs, wherein each tab includes polymer overmolded about a respective end of the strap. The battery also includes a polymer packaging having a cover, wherein a top portion of the cover defines a pair of slots. Each slot is engaged with a respective tab of the battery handle assembly, and wherein each slot includes a respective retention feature that blocks the respective tab from disengaging from the slot.

An exemplary embodiment of the present invention provides a rechargeable battery with an external short-circuit part having an advantage of preventing foreign materials and moisture from the outside from permeating as well as discharging internal pressure when a membrane is inversely deformed. A rechargeable battery according to an exemplary embodiment of the present invention includes: a case for accommodating an electrode assembly; a cap plate for sealing an opening of the case; a first electrode terminal and a second electrode terminal provided to penetrate the cap plate so as to be electrically connected to the electrode assembly; and an external short-circuit part electrically separating or short-circuiting the first and second electrode terminals outside of the electrode assembly. The external short-circuit part includes a membrane for sealing a short-circuit hole formed in the cap plate.

Provided is a pouch type lithium secondary battery having a tubular passage structure. The pouch type lithium secondary battery having a tubular passage structure includes: a tubular passage structure having a passage of injecting an electrolyte from an outer portion of a pouch and discharging gas from an inner portion of the pouch by communicating the inner portion of the pouch with the outer portion of the pouch.

There is disclosed a cartridge for a portable electronic device power system configured as a flat, prismatic, air-breathing zinc-air battery comprising (a) an anode assembly having a structural backbone, current collectors, and a gel solution comprising a mixture of amalgamated zinc powder, aqueous potassium hydroxide and a gelling agent, (b) a porous separator sheet, and (c) an air-breathing cathode having an electrode impregnated with reductive catalyst, and (d) a serialized electrical connectivity path having low ohmic resistance characteristics. More specifically, there is disclosed a prismatic format, flat rectangular disposable primary battery having two or more zinc-air batteries connected in series, wherein each zinc air battery comprises: (a) an anode assembly having a structural backbone, current collectors, and a gel solution comprising a mixture of amalgamated zinc powder, aqueous potassium hydroxide and a gelling agent, (b) a porous separator sheet, and (c) a catalytically active oxygen-reductive cathode.