A battery with at least two battery cells, which are connected by at least one electric connection element to one another, and a superordinate control device. Each of the battery cells is provided with at least one galvanic element, a battery cell housing for accommodating the galvanic element, at least one sensor device for detecting a physical and/or chemical feature of the battery cell, and a communication device for communicating with the superordinate device. The superordinate device is adapted to control an energy flow in at least one of the battery cells and/or from at least one of the battery cells as a function of the physical and/or chemical features of the battery cell. The invention further also relates to a motor vehicle with such a battery.

An apparatus for detecting swelling of a battery module, which includes a swelling detection panel having an edge in contact with an inner surface of a battery module housing; a slant portion configured to protrude from the inner surface of the battery module housing and having a slant surface extending from a first location adjacent to the edge of the swelling detection panel to a second location while forming a predetermined angle with the inner surface; a contact sensor unit installed to the inner surface of the battery module housing immediately adjacent to an end of the slant surface corresponding to the second location; and a control unit configured to receive a swelling detection signal from the contact sensor unit when the edge of the swelling detection panel contacts the contact sensor unit, and to control an alarm unit to output an alarm message.

Provided is a pressure balancing device, having a mounting seat and a cover, wherein an accommodating cavity is formed between the mounting seat and the cover. The pressure balancing device may also have a partition member, wherein the partition member divides the accommodating cavity into first and second accommodating cavities. The partition member may also include a support portion and an elastic portion, the support portion being disposed on the elastic portion and having a vent hole capable of fluidly communicating the accommodating cavities. The elastic portion is elastically deformable so as to move the support portion relative to the cover. The pressure balancing device may also have a breathable film that is disposed on the support portion and covers the vent hole, and that is movable as the support portion moves.

Methods and systems for detecting and compensating for expansion of rechargeable batteries over time. An expansion detector may be coupled to or positioned proximate a rechargeable battery to monitor for expansion thereof. After expansion exceeding a selected threshold is detected, the expansion detector may report the expansion to an associated processing unit. The processing unit may undertake to arrest further rechargeable battery expansion by modifying or changing one or more characteristics of charging and/or discharging circuitry coupled to the rechargeable battery. For example, the processing unit may charge the rechargeable battery at a lower rate or with reduced voltage after detecting expansion.

A rechargeable battery cell a casing and first and second electrode materials separately positioned in the casing. A mechanical impulse element is positioned to mechanically move and dislodge gas bubbles from at least one of the first and second electrode materials in response to activation. In some embodiments the mechanical impulse element can include a vibratory piezoelectric element. In other embodiments, a gas vent in the battery cell can be used to release dislodged gas bubbles.

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 battery thermal runaway detection sensor system for use within a battery enclosure housing one or more batteries. The system has at least one gas sensor for detecting a venting condition of a battery cell of hydrogen, carbon monoxide or carbon dioxide, and providing a sensed output in real time. A microcontroller determines power management and signal conditioned output on the concentration of specific battery venting gases based on the sensed output from said at least one gas sensor.

A rechargeable energy storage system includes a battery pack and a battery controller. The battery pack has a voltage current temperature module and multiple battery modules. Respective battery modules have multiple battery cells and are operable to store a module identifier that encodes at least one parameter of the battery cells, receive a configuration request from the voltage current temperature module, and transfer the module identifier to the voltage current temperature module in response to the configuration request. The battery controller is in communication with the voltage current temperature module and is operable to send a status request to the voltage current temperature module, receive the plurality of module identifiers from the voltage current temperature module in response to the status request, and compare the module identifiers to determine either a match or at least one mismatch among the module identifiers of the battery modules.

A battery pack that includes a plurality of battery modules respectively having a pair of fixing portions provided at both longitudinal sides thereof; a tray on which the plurality of battery modules are placed; a pair of side covers for covering both widthwise sides of the tray and having a first fastening hole formed at a location corresponding to a coupling hole formed in the fixing portion; and a module fixing bar positioned at a widthwise center of the tray and shaped to extend across an upper surface of the tray along a longitudinal direction of the tray, the module fixing bar having a second fastening hole formed at a location corresponding to the coupling hole formed in the fixing portion.

A control system to prevent thermal runaway includes an enclosure housing a plurality of battery cells of a battery module. Each of the battery cells is a pouch-type battery cell includes a core and a pouch enclosing the core and including one or more portions along one or more side surfaces thereof that are attached together by adhesive to form a seal. The adhesive is configured to release the seal when pressure within the pouch exceeds a predetermine pressure value. A gas sensor is configured to sense a predetermined gas in the enclosure. A valve is configured to selectively deliver thermal control fluid from a source. A controller is configured to open the valve in response to the gas sensor sensing the predetermined gas in the enclosure.