Abstract: A fuel cell module includes fuel cells, a gas supply system, a first accumulator, a second accumulator, and power connection. The fuel cells are arranged in a cell stack having a first axial end and a second axial end. The gas supply system is configured to supply gas for the operation of the fuel cells, the fuel cells being stacked in an axial direction. The first accumulator is arranged at the first axial end of the cell stack. The second accumulator is arranged at the second axial end of the cell stack. The power connection is electrically conductively connected to the second accumulator, and is arranged at the gas supply system. The cell stack is arranged within an insulation sheath and the gas supply system is arranged partly outside the insulation sheath and the power connection is arranged outside the insulation sheath.

Abstract: A battery cell for an electric vehicle battery pack is provided. A housing of the battery cell can define a cavity. An electrolyte material can be housed within the cavity. A first polarity terminal of the battery cell can be disposed at an open end of the housing. A first conductive tab can be disposed at a closed end of the housing and electrically coupled with a first polarity portion of the electrolyte material. A conductive rod can extend through a core of the electrolyte material and can include a first end disposed at the closed end of the housing and electrically coupled with the first conductive tab. A receptacle can be electrically coupled with the first polarity terminal and can extend towards the electrolyte material to engage with a second end of the conductive rod at the open end of the housing.

Abstract: An electrode assembly includes an electrode jelly-roll, which includes a winding including a first electrode plate, a second electrode plate, and a separator disposed between the first and second electrode plates; an outer surface parallel to a winding axis of the prismatic electrode jelly-roll, side surfaces perpendicular to the winding axis; a first electrode tab, which is electrically connected to the first electrode plate and extends in a winding axis direction of the prismatic electrode jelly-roll; a second electrode tab, which is electrically connected to the second electrode plate and extends in a winding axis direction of the electrode jelly-roll, wherein an end portion of at least one of the first electrode tab and the second electrode tab is bent in a direction opposite to the direction in which the corresponding electrode tab extends and faces an outer surface of the prismatic electrode jelly-roll.

Abstract: A method for producing a button cell includes providing a cell cup, the cell cup having a flat bottom area and a cell cup casing; providing a cell top, the cell top having a flat top area and a cell top casing having a first height; and providing an electrode-separator assembly winding. The cell top casing and the cell cup casing form an overlap area extending in a direction parallel to the axis of the winding and having a second height, the second height being between 20% and 99% of the first height. The method includes applying, in a radial direction perpendicular to the axis of the winding, a pressure on the cell cup casing so as to seal the housing, wherein a portion of the cell top casing that is cylindrical forms at least a part of the overlap area.

Abstract: A button cell includes a housing, the housing having a cell cup with a flat bottom area, and a cell top with a flat top area, and further includes an electrode-separator assembly winding disposed within the housing, the electrode-separator assembly winding including a multi-layer assembly that is wound in a spiral shape about an axis. The multi-layer assembly includes a positive electrode, a negative electrode, and a separator disposed between the positive electrode and the negative electrode. The button cell additionally includes a first output conductor between a first end face of the electrode-separator assembly winding and a first of the flat bottom area or the flat top area, and a second output conductor between a second end face of the electrode-separator assembly winding and a second of the flat bottom area or the flat top area. Furthermore, the button cell includes a first insulator and a second insulator.

Abstract: A rechargeable button cell including a housing half-parts comprising a housing cup and a housing top separated from one another by an electrically insulating seal or film seal is disclosed. The button cell includes an electrode-separator assembly within the housing having a positive and a negative electrode in the form of flat layers connected to one another by a porous plastic film separator. The electrodes each include a metallic film or mesh embedded in a respective electrode material as a current collector, which acts as an output conductor that connects the electrodes to one of the flat bottom or flat top areas of the housing.

Abstract: A button cell includes a housing having a cell cup, the cell cup having a flat bottom area, a cell cup casing, and a bottom edge forming a transition between the flat bottom area and the cell cup casing, and a cell top, the cell top having a flat top area and a cell top casing. An electrode-separator assembly winding is disposed within the housing, the electrode-separator assembly winding including a multi-layer assembly that is wound in a spiral shape about an axis, the multi-layer assembly including a separator disposed between a positive electrode and a negative electrode, and a first output conductor. An insulator is disposed between an end face of the electrode-separator assembly winding and the first output conductor, wherein the first output conductor is welded to the first of the flat bottom area or the flat top area.

Abstract: The present invention relates to a battery module consisting of battery cells and a cooling module comprising multiple tiers, the cooling module being designed to hold the battery cells, such as lithium-ion batteries. The cooling module consists of at least one first and one second side part, each side part having at least one flow channel, and of multiple substantially flat elements which extend along planes between the side parts. An internal area is formed between neighbouring flat elements, said internal areas being designed to hold the battery cells.

Abstract: A pouched energy storage device can include a cell housing portion and a sealed portion. The device can also include a stack of electrodes housed within an inner region of the cell housing portion. Each electrode can have dimensions of width, length, and thickness. One or more electrodes can have at least one of the dimensions smaller than a corresponding dimension of other electrodes in the stack of electrodes. The device can also include an indentation on the cell housing portion adjacent the sealed portion. The indentation can form a stepped region in the inner region that is complimentary to the one or more electrodes having at least one of the dimensions smaller than a corresponding dimension of other electrodes in the stack of electrodes. The sealed portion can be folded onto the cell housing portion so that at least a part of the sealed portion resides in the indentation.

Abstract: The invention relates to a method for regenerating the capacity of an electrochemical lithium battery, including the following steps: a) evaluating the quantity of lithium ions; b) when the evaluated lithium ion quantity is less than or equal to a threshold value, applying an electric current between the cathode or the anode and the container such as to cause the delithiation of the casing, the casing is also arranged to house an element providing both electric insulation and ionic conduction between the anode and cathode electrodes of the electrochemical cell and the casing, said casing including at least one lithium ion storage zone.

Abstract: A dense ??-alumina/zirconia composite solid electrolyte and process for fabrication are disclosed. The process allows fabrication at temperatures at or below 1600° C. The solid electrolytes include a dense composite matrix of ??-alumina and zirconia, and one or more transition metal oxides that aid the conversion and densification of precursor salts during sintering. The composite solid electrolytes find application in sodium energy storage devices and power-grid systems and devices for energy applications.

Abstract: Electrolyte formulations including a high salt concentration. The electrolyte formulation includes an organic solvent and a lithium salt, wherein the lithium salt is mixed with the organic solvent at a concentration of at least 20 Mole %, or at least 40 Mole %, or at least 50 Mole %. The organic solvent includes N-methyl-2-pyrrolidone, butylene carbonate, butyl propionate, pentyl acetate, ?-caprolactone, propylene glycol sulfite, ethyl methyl sulfone, butyl sulfoxide or combinations thereof. The lithium salt includes lithium bis(trifluoromethane sulfonyl) imide, lithium tetrafluoroborate, or lithium hexafluorophosphate.

Abstract: According to a method for producing a nanostructured electrode for an electrochemical cell, in which active material is applied to an electrically conductive substrate, the active material is deposited on the electrically conductive substrate by magnetron sputtering in one process step, a ceramic target comprising an electrode material having an additional carbon proportion between 0.1 and 25% by weight is used, the substrate being kept at temperatures between 400° C. and 1200° C. during the deposition, in such a way that a fibrous porous network is formed.

Abstract: An interconnector for a solid oxide fuel cell is manufactured by single-press compacting a powder blend to form a green interconnector with a desired shape of a final interconnector. The powder blend includes chromium and iron, and may include an organic lubricant. At least 50 wt % or more of an iron portion of the powder blend comprises iron particles smaller than 45 um. The green interconnector is then sintered and oxidized to form the final interconnector. The oxidation step occurs in a continuous flow furnace in which a controlled atmosphere (e.g., humidified air) is fed into the furnace in the travel direction of the interconnector. The final interconnector comprises at least 90 wt % chromium, at least 3 wt % iron, and less than 0.2 wt % nitrogen. An average density within a flow field of the final interconnector may be less than 6.75 g/cc.

Abstract: An apparatus for holding a circuit against a battery module includes a set of first fixtures for holding a set of first tabs of the circuit against a corresponding set of positive terminals of the battery module, a set of second fixtures for holding a set of second tabs of the circuit against a corresponding set of negative terminals of the battery module, and a rigid plate having a set of openings therein for receiving the set of first fixtures and the set of second fixtures, the rigid plate configured for mounting to a structure holding the battery module.

Abstract: A fuel cell module includes fuel cells and an air supply system. The fuel cells are arranged in a cell stack. The air supply system is configured to supply air into an air distribution space for operating or cooling the fuel cells. The fuel cells are stacked in an axial direction. The air supply system is configured such that cooling results due to the air supplied to the fuel cells not being of uniform strength in the axial direction. The air supply system is arranged completely radially outside the cell stack.

Abstract: A button cell includes a housing, the housing including a cell cup, the cell cup having a flat bottom area, a cell cup casing; an insulator; and an electrode-separator assembly winding disposed within the housing, the electrode-separator assembly winding including a multi-layer assembly that is wound in a spiral shape about an axis, the multi-layer assembly including a positive electrode formed from a first metallic film or mesh coated with a first electrode material, a negative electrode formed from a second metallic film or mesh coated with a second electrode material, and a separator disposed between the positive electrode and the negative electrode. The first metallic film or mesh is bent such that at least a portion extends out of the electrode-separator assembly winding and wherein at least a first part of the portion is not covered with the first electrode material.

Abstract: A method for producing a positive electrode sheet is provided with a positive current collecting foil made of aluminum and a battery positive active material layer containing positive active material particles made of LiNiMn based spinel and applied and dried on the current collecting foil. The positive active material layer includes a first binder made of polyacrylic acid with a molecular weight of 50,000 or less and a second binder made of polyacrylic acid with a molecular weight of 300,000 or more. The first positive electrode paste forming the positive active material layer satisfies expressions (1) to (3): ??1.7??(1) ??0.9??(2) ?+??3.0??(3) where ? is an additive amount of the first binder in pts. wt. and ? is an additive amount of the second binder in pts. wt. when other solid content is 100 pts. wt.

Abstract: This disclosure relates to a battery arrangement for an electrified vehicle. Among other things, the battery arrangement includes first and second battery modules, each of which includes a battery module housing. Adjacent surfaces of these battery module housings are interlocked such that the first and second battery modules are configured to slide relative to one another in a transverse direction of the electrified vehicle. Accordingly, this disclosure increases safety while saving space and without requiring undue reinforcements of the chassis structure, which would increase the weight of the vehicle and reduce the energy efficiency the vehicle. These and other benefits will be appreciated from the following description.

Abstract: A sealing part has an outer peripheral point of the sealing part within a range from 0 degree to 90 degrees around a center point of the sealing part relative to a stacking direction, and that is located at a distance of a first length L1 from the center point. Each point on the outer peripheral line within a first range satisfies L2?L1, where L2 is a second length that is a distance from the center point to that point. Each point on the outer peripheral line within a second range satisfies L3<L1, where L3 is a distance from the center point to that point, and is located on the opposite side of the outer peripheral point from the center point or at the same position as the outer peripheral point in the direction perpendicular to the stacking direction.