A battery includes a battery cell stack disposed within a housing such that a gap exists between the battery cell stack and an inner surface of the housing. The battery cell stack includes a plurality of battery cells that each include a positive electrode tab and a negative electrode tab electrically coupled to an electrode assembly and extending from the electrode assembly outside of a case. The positive electrode tabs and/or the negative electrode tabs of the plurality of battery cells extend into the gap between the battery cell stack and the inner surface of the housing. A filler material fills the gap and provides a thermally conductive pathway between the positive electrode tabs and/or the negative electrode tabs of the plurality of battery cells and the inner surface of the housing. The filler material includes a thermally conductive particulate component distributed throughout a polymeric matrix component.

An electrical energy store for the storage of electrical energy for a motor vehicle, includes a housing which delimits a receptacle space, storage cells which are arranged in the receptacle space for the storage of the electrical energy, and a line element, which accommodates a through-flow of a coolant fluid for cooling the energy store. The line element has at least one longitudinal region which is routed in the receptacle space and is constituted of a first material having a first melting temperature, and at least one outflow opening that terminates in the receptacle space. A closure element closes the outflow opening and is constituted of a second material, which differs from the first material and has a second melting temperature which is lower than the first melting temperature. The closure element is to be melted for the release of the outflow opening. The storage cells are constituted as solid-body accumulators.

A battery safety device is provided, which may be disposed inside a battery, and may include a conductive handle and a temperature-controlled expansion element. The conductive handle may include a connection portion, a left extension portion, a right extension portion, a top extension portion and an actuating sheet. The left extension portion and the right extension portion may be connected to the connection portion and contact the first conductive portion of the polar winding of the battery. The top extension portion may be connected to the connection portion and contact the first electrode terminal of the battery. The actuating sheet may be connected to the connection portion, and there may be an accommodating space between the actuating sheet and the polar winding, and the temperature-controlled expansion element may be disposed in the accommodating space and contact the actuating sheet and the first conductive portion.

Embodiments of the present application provide a battery, a power consumption device, a method and device for preparing a battery. The battery includes: a battery cell including a pressure relief mechanism, the pressure relief mechanism being disposed at a first wall of the battery cell; and a thermal management component configured to accommodate a fluid to adjust a temperature of the battery cell; where a first surface of the thermal management component is attached to the first wall of the battery cell, the thermal management component is configured to be capable of being damaged by emissions discharged from the battery cell when the pressure relief mechanism is actuated, such that the emissions pass through the thermal management component. According to the technical solutions of the embodiments of the present application, the safety of the battery can be enhanced.

This disclosure presents an electrode lead plate (6) for a cylindrical secondary cell (1) comprising a terminal part (4) and an electrode roll (3) comprising a conductive sheet (3a). The electrode lead plate (6) comprises an inner contact region (6c) configured to be arranged in direct electrical contact with the terminal part (4) and an outer contact region (6e) configured to be arranged in direct electrical contact with the conductive sheet (3a), wherein the inner contact region (6c) is recessed in relation to the outer contact region (6e). Further, a terminal part (4) and a cylindrical secondary cell (1), as well as uses and methods of manufacture, are presented.

An assembly for a vehicle comprising at least two battery blocks, each having a casing in which the battery block is enclosed and that has a connection face. The outer skin of the vehicle has an outlet orifice. There is a main duct connected to the outlet orifice. For each casing, an evacuation duct is connected between the connection face and the main duct. A damping unit is provided at the joint between each connection face and the evacuation duct. A damping unit is provided at the joint between the main duct and the outlet orifice. Each damping unit limits the amplitude of an overpressure propagating from the casing towards the outlet orifice. Such an assembly enables an overpressure to be damped in the event of a battery being damaged, inter alia.

An electric vehicle battery pack configured to rapidly discharge one or more individual battery cells within a multi-cell battery arrangement to mitigate a propagation of a multi-cell thermal runaway event, the vehicle battery pack including a plurality of battery cells and a battery management system including sensing circuitry configured to sense one or more conditions of the plurality of battery cells, a processor configured to process data sensed by the sensing circuitry to determine whether any of the plurality of battery cells is experiencing the onset of a thermal runaway event, and a control engine configured to isolate and rapidly discharge a potential energy from a battery cell experiencing the onset of a thermal runaway event, thereby mitigating a potential for a propagation of a thermal runaway event experienced by a single cell into a multi-cell thermal runaway event.

A vent for an electric vehicle battery pack configured to transition from a venting, open position to a sealed, closed position in the event of a thermal event experienced by the electric vehicle battery pack, thereby trapping the gasses within the electric vehicle battery pack, including a curved disc shaped and sized to selectively seal an aperture defined by the electric vehicle battery pack, the curved disc formed of a first material on a first major surface of the disc, and a second material positioned on an opposing second major surface of the disc, the first material having a larger coefficient of thermal expansion than the second material, such that an increase in temperature above a defined threshold experienced by the curved disc causes the first material to expand more than the second material, thereby transitioning the curved disc from a first equilibrium state to a second equilibrium state.

A fire extinguishing system includes a gas discharger provided at a battery pack and configured to discharge gas in the battery pack, a gas channel configured so that the gas produced from the battery pack and discharged through the gas discharger flows through the gas channel when a fire occurs, an extinguishing agent tank in which an extinguishing agent is kept, a heat exchange channel provided in the extinguishing agent tank, connected to the gas channel so that the gas supplied through the gas channel flows through the heat exchange channel, and facilitating heat exchange between the gas flowing through the heat exchange channel and the extinguishing agent kept in the extinguishing agent tank, and a nozzle provided at the battery pack, connected to the extinguishing agent tank through an extinguishing agent supply channel, and supplying the extinguishing agent, which is supplied from the extinguishing agent tank, into the battery pack.

Embodiments of the present application provide a battery, a power consumption apparatus, and a method and apparatus for producing a battery. The battery includes: a battery cell, provided with a pressure relief mechanism, the pressure relief mechanism being configured to be actuated when an internal pressure or temperature of the battery cell reaches a threshold, to relieve the internal pressure; a bus component, configured to be electrically connected to the battery cell; an electrical cavity, configured to accommodate the battery cell and the bus component; a collecting cavity, configured to collect emissions from the battery cell when the pressure relief mechanism is actuated; and a sealing structure, disposed in an airflow path formed between the pressure relief mechanism and a wall of the electrical cavity and configured to prevent the emissions from reaching the bus component when the pressure relief mechanism is actuated.