The present invention relates to an apparatus, system, and method for collecting gas generated in a secondary battery, specifically, to an apparatus, system, and method for collecting gas, which allow an operator to collect gas generated inside a secondary battery according to a desired section.

The present invention relates to an apparatus, system, and method for collecting gas generated in a secondary battery, specifically, to an apparatus, system, and method for collecting gas, which allow an operator to collect gas generated inside a secondary battery according to a desired section.

Systems and methods associated with a battery for a micromobility transit vehicle are provided. A micromobility transit vehicle may include a frame and a battery disposed at least partially in the frame. The battery may include a housing and a ventilation assembly. The ventilation assembly may include a vent cap releasably coupled to the housing, and a breather plug connected to the vent cap and including a membrane configured to pass air between the housing and an external environment, such as to equalize a pressure within the housing with an external environment. The vent cap may be configured to mechanically release from the housing to vent internal gases out of the battery in response to a pressure within the housing, such as in response to a pressure exceeding a threshold.

Systems and methods associated with a battery for a micromobility transit vehicle are provided. A micromobility transit vehicle may include a frame and a battery disposed at least partially in the frame. The battery may include a housing and a ventilation assembly. The ventilation assembly may include a vent cap releasably coupled to the housing, and a breather plug connected to the vent cap and including a membrane configured to pass air between the housing and an external environment, such as to equalize a pressure within the housing with an external environment. The vent cap may be configured to mechanically release from the housing to vent internal gases out of the battery in response to a pressure within the housing, such as in response to a pressure exceeding a threshold.

A battery cell assembly according to the present invention may comprise: a battery cell array including a plurality of battery cells; a pair of holder plates which are made of an electric insulation material, are arranged at both ends of the battery cell array to face each other, and include position fixing grids which are provided on the inner surfaces thereof, respectively, are spaced apart from each other, and fix respective positions of the plurality of battery cells; and a plurality of contact bolts made of an electroconductive material are arranged at positions corresponding to electrode terminals of the plurality of battery cells, respectively, wherein one-side ends of the contact bolts are in electric contact with the electrode terminals of the battery cells and the other-side ends thereof are disposed to protrude from the outer surfaces of the holder plates, respectively.

The invention relates to a metal-ion electrochemical battery or accumulator, comprising: a housing (6) of longitudinal axis (X), a rupture zone (60) of a part of the housing, forming a safety vent for the degassing of the accumulator, at least one duct (10) comprising at least one rigid part (14) forming a stiffener, fixed or formed integrally with the part of the housing, around the safety vent, and a flexible part (15) arranged tightly with the housing or with the stiffener which is itself tight with respect to the housing, in the extension of the stiffener and around the latter, the flexible part being adapted to be deformed elastically on three orthogonal axes (X, Y, Z), so as to compensate for the plays on these axes when it is inserted and held tightly in a through opening (12) of a casing (11) of a module or battery pack.

A battery case includes: a battery container including a battery containing chamber containing a plurality of batteries, and an inner gas discharge hole for discharging a gas generated in the batteries on at least one side in a height direction of the batteries fixed to the battery containing chamber; and one or more gas exhaust passages including first and second corner passage parts that are located inside an outer wall part including an outer surface in contact with an outer region and outside the battery container and extend along the height direction, and an outer gas discharge hole for discharging the gas to the outside, the one or more gas exhaust passages guiding the gas from the inner gas discharge hole to the outer gas discharge hole.

A battery case includes: an inner case that includes an inner gas discharge hole for discharging the gas generated in batteries accommodated in a battery accommodating chamber to the outside of the battery accommodating chamber; an outer case that has an inner case accommodating chamber accommodating the inner case and includes an outer gas discharge hole for discharging the gas to the outside; a plurality of ribs that extend from the outer surface of the inner case to the inner surface of the outer case, to position the inner case with respect to the outer case, and are arranged at intervals from each other; and one or more gas guide passages defined by an outer surface of the inner case, an inner surface of the outer case, and the plurality of ribs and configured to guide a gas from the inner gas discharge hole to the outer gas discharge hole.

Discussed is a battery pack that can effectively suppress a fire even when high-temperature gas or sparks are generated in some battery modules. The battery pack may include at least one battery module having at least one secondary battery and configured to store and release energy, a duct provided to at least one side of the at least one battery module and configured discharge hole configured to discharge a gas generated from the at least one battery module, when the generated gas flows toward the discharge hole, and an opening/closing member located at the discharge hole of the duct and configured to open the discharge hole when an internal pressure of the duct is at or above a predetermined level and to close the discharge hole when the internal pressure of the duct is at or below the predetermined level.

A vent valve includes a breathable membrane. The vent valve can be in a battery assembly of a vehicle. The vent valve comprises a base defining a central channel and a valve core movably connected with the base and including at least one first gas channel. The valve core is configured to move from a first position to a second position relative to the base under a gas pressure. When the valve core is in the second position, the first gas channel is at least partially opened to allow some airflow to bypass the breathable membrane.