Abstract: Provided are flow batteries that include a fluidic train within a dynamic fluidic network system which fluidic train is convertible between a first state and a second state, the first state the first state placing a main electrolyte source and a dynamic fluidic network, outside the fluidic train and an electrode region, into fluid communication with the electrode region and the second state placing the main electrolyte source and the dynamic fluidic network, outside the fluidic train and the electrode region, into fluid isolation from the electrode region and placing the electrode region into fluid communication with a sampling segment. Also provided are methods of operating flow batteries.

Abstract: A connector system (1) for coupling one fluid conduit to another fluid conduit comprises a first connector element (2) having a mating surface extending around an insertion axis of the connector element. The mating surface incorporates first and second resilient peripheral seals (7, 9) extending around the mating surface, the first and second peripheral seals (7, 9) having different diameters and being separated along the insertion axis. The first connector element (2) bearing the peripheral seals (7, 9) can be the female connector (2), such as shown, or can be the male connector (3).

Abstract: A fuel cell device is provided, including a fuel cell stack, which includes a plurality of fuel cell units following each other in a stacking direction, and two end plates, between which the fuel cell stack is arranged. With the fuel cell device, harmful effects from hydrogen exiting the fuel cell units are avoided without making access to the fuel cell units impossible or causing a disproportionately large maintenance expenditure. The fuel cell device includes an enclosure which surrounds the fuel cell stack and the end plates, wherein the free remaining volume that remains within the enclosure between the enclosure, the fuel cell stack, and the end plates is less than 20% of the internal volume of the enclosure.

Abstract: A fuel cell stack is provided comprising a first end plate and a second end plate between which a plurality of fuel cells is arranged. At least one elastic tensioning element is tensioned in a stack direction between the end plates. According to the invention, a section of the at least one tensioning element is arranged between a surface section of the fuel cell stack and a retensioning element, wherein a distance between the retensioning element and the surface section can be variably adjusted and set. In this way, the tensioning element can be stretched in a targeted manner by means of the retensioning element and as such the compressive tensile force acting on the fuel cell stack can be increased. A vehicle is also provided comprising such a fuel cell stack.

Abstract: A non-aqueous electrolyte for a lithium-ion battery and a lithium-ion battery. The non-aqueous electrolyte includes an unsaturated phosphate compound and a cyclic unsaturated carboxylic anhydride compound. The unsaturated phosphate compound has a structure represented by structural formula (4). R13, R11 and R12 are each independently selected from a hydrocarbon group having 1 to 5 carbon atoms, and at least one of R13, R11 and R12 is an unsaturated hydrocarbon group having a double bond or a triple bond. The unsaturated cyclic carboxylic anhydride compound having a structure represented by Structural Formula 5. R14 is selected from the group consisting of an alkenylene group having 2 to 4 carbon atoms or a fluorinated alkenylene group having 2 to 4 carbon atoms. By means of the synergistic effect of two compounds, the non-aqueous electrolyte has excellent high-temperature cycling performance and storage performance, and also has lower impedance and good low-temperature performance.

Abstract: The present invention provides a battery module, which includes a plurality of battery cells with stacked each other which include a cell body configured to house an electrode assembly and electrode tabs drawn out from the cell body, respectively; and a housing unit configured to enclose at least a portion of an outer surface of the plurality of stacked battery cells to house the plurality of stacked battery cells, wherein the housing unit includes a heat sink unit having a refrigerant flow passage formed therein.

Abstract: The invention relates to a fuel cell plate (1) for supplying a reactant to an active region of a fuel cell, having at least one inlet (2) and at least one outlet (3) and also having a flow field (4) which is situated therebetween, is formed on a first surface (5) of the plate (1) and has a plurality of flow guides (6). In this case, at least some of the flow guides (6) are formed as deflection elements (7) in the form of guide vanes, guide panels or wings.

Abstract: A liquid tank system includes a tank body and a liquid coolant supplying device. The tank body has an accommodating space, a liquid inlet, and an upper outlet. The liquid inlet and the upper outlet communicate with the accommodating space. The accommodating space is sealed except for the liquid inlet and the upper outlet. The liquid coolant supplying device is connected to the liquid inlet so as to continuously provide a liquid coolant to the accommodating space through the liquid inlet. The liquid coolant in the accommodating space overflows out of the tank body through the upper outlet. A Li-ion battery cooling system includes a Li-ion battery and the above liquid tank system. The Li-ion battery is disposed in the accommodating space and submerged in the liquid coolant. The continuously flowing liquid coolant dissipates heat from the lithium battery.

Abstract: A battery includes a case having a feedthrough port, a feedthrough assembly disposed in the feedthrough port, and a cell stack disposed within the case. The feedthrough port includes an inner conductor and an insulator core separating the inner conductor from the case. The cell stack includes an anode, a cathode, and a separator insulating the anode from the cathode, wherein the anode and cathode are offset from one another. An insulating boot surrounding the cell stack insulates the cell stack from the case. The insulating boot has an opening configured to receive therein the feedthrough assembly, which may include overmolded insulation. The interior surfaces and interior walls of the battery case may be thermal spray-coated with a dielectric material to prevent lithium dendrite formation between cathode and anode surfaces.

Abstract: The present disclosure describes a temperature control system for an energy store of a motor vehicle, e.g., an electric and/or hybrid vehicle. The temperature control system includes at least one temperature control plate including at least one contact plate and at least one base plate. The at least one contact plate has at least one surface portion for contacting the at least one energy storage cell. The at least one temperature control plate defining at least one sealing portion for sealing a at least one flow space relative to an interior space of the energy store. The at least one sealing portion comprises at least one intermediate sealing portion and at least one collection passage. The at least one sealing portion includes at least one safety seal, structured and arranged to seal the at least one collection passage relative to the interior space.

Abstract: In an aspect an electric aircraft is presented. An electric aircraft includes a consumable coolant reservoir housed within the electric aircraft. A consumable coolant reservoir is configured to contain a coolant. An electric aircraft includes a battery pack temperature control system including at least a thermal pathway. A thermal pathway is in thermal communication with a consumable coolant reservoir and at least a battery pack of an electric aircraft. A thermal pathway is configured to transport a thermal energy away from at least a battery pack.

Abstract: The disclosure provides a vehicle battery cooling device including, in a vehicle equipped with a battery for driving, a battery accommodation part, an outside air introduction passage introducing air outside the vehicle, a heat exchanger cooling air introduced into the outside air introduction passage, a first air conditioning passage, a second air conditioning passage, a first discharge passage, and a second discharge passage. The first air conditioning passage is communicated to the heat exchanger and the vehicle room to supply air cooled by the heat exchanger to the vehicle room. The second air conditioning passage is communicated to the heat exchanger and the battery accommodation part to supply air cooled by the heat exchanger to the battery accommodation part. The first discharge passage discharges air in the vehicle room to outside the vehicle. The second discharge passage discharges air in the battery accommodation part to outside the vehicle.

Abstract: A bipolar plate for use in a fuel cell stack includes a first delimiting surface and a second delimiting surface that is arranged parallel to the first delimiting surface, wherein the delimiting surfaces are arranged spaced apart from one another and define an intermediate space, wherein the bipolar plate includes at least one fuel cell section having a flow field that has depressions that protrude into the intermediate space and is provided so as to make direct contact with a fuel cell, and the bipolar plate includes at least one cooling section that extends therefrom along the delimiting surfaces, wherein at least one heat pipe is arranged in the intermediate space and extends so as to transfer heat from the fuel cell section into the cooling section.

Abstract: A method and apparatus for detecting oxidation in at least one planar fuel cell stack that includes a multitude of cells is described. The height of the stack is measured to determine if there has been an increase from a previously-measured height. Such an increase correlates with the oxidation of at least some of the planar cells. In some cases, the fuel flow rate or airflow rate to each fuel cell stack can be adjusted, based in part on the oxidation detection technique. A power delivery system with at least two fuel cell stacks is also described, and it includes a stack height-measurement system, a health monitor for the fuel cell stacks, and a load balancer or airflow regulator.

Abstract: A battery housing arrangement, in particular a battery housing assembly of a vehicle traction battery which can be temperature-controlled by a fluid, comprises a battery housing which encloses an interior space for receiving battery cells, and a heat transmission device which has an inlet tube, an outlet tube and a heat exchanger element arranged fluidically therebetween. The fluid is able to flow through the heat transmission device from the inlet tube via the heat exchanger element to the outlet tube. The heat exchanger element can be accommodated in the battery housing. The battery housing has at least one through-opening for feeding through the inlet tube and the outlet tube, and the battery housing has at least one closure element which is inserted into the at least one through-opening and forms a closure between the inlet tube and/or the outlet tube and the at least one through-opening.

Abstract: A multifunctional manifold for use with electrochemical devices having a spiral cross-section, such as spiral solid-oxide fuel cells, includes an interface that is configured to be placed in operative communication with such devices. The interface includes a fuel interface section and an oxidant interface section that are each configured as spirals. The spiral interface sections also include channels that are configured to be placed in operative communication with corresponding spiral channels of the electrochemical device to deliver operating gases, such as fuel gas and oxidant gas, thereto. In addition to delivering operating gases to the fuel cells, the multifunctional manifold is also configured to act as an electrical current collector and a heat exchanger.

Abstract: In order to prevent injury from hot exhaust gas, water is condensed by a metal net in the exhaust pipe.

Abstract: The invention relates to a fuel cell system comprising an outer container, defining an enclosed chamber. Inside the enclosed chamber are provided: a storage vessel for storing a cryogenically liquefied working fluid, a gasification device coupled to the storage vessel, a fuel cell arrangement coupled to the gasification device, and a control unit configured to control flow between the components within the enclosed chamber. A power cable is provided which is coupled at one end to the fuel cell arrangement and extending through an exterior wall of the outer chamber such that a second end of the cable extends outside the chamber. The enclosed chamber is substantially sealed such that in use, leaking of the working fluid is substantially prevented.

Abstract: A battery device has a battery housing, a plurality of battery cells arranged therein, around which a dielectric thermal management medium can flow in the battery housing at least in some areas in an immersion circuit inside the battery for the purpose of immersion thermal management, and thermally conductive elements. The thermally conductive elements are each arranged between two adjacent battery cells which each bear with at least one side against the respective thermally conductive element in thermally conductive contact with the latter. The thermally conductive elements here project in at least one direction beyond the battery cells and through a housing wall of the battery housing to the outside. The thermal management medium can likewise flow around those sections of the thermally conductive elements running from the battery cells to the corresponding housing wall.

Abstract: Disclosed are an antioxidant which increases chemical durability of a polymer electrolyte membrane fuel cell (PEMFC) and a method for manufacturing the same. The antioxidant may prevent chemical degradation of the fuel cell and have improved antioxidation capability through a reduction reaction annealing process.