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1190
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Updated on
25/10/2026 [07:33:00]
Absstract of: US20260331643A1
0000 A method for controlling the temperature of a battery in an electric or hybrid motor vehicle by means of a system including a vapor compression circuit in which a first heat transfer composition flows, and a secondary circuit in which a second heat transfer composition flows, the method involving: —heat exchange between the battery and the second heat transfer composition; —heat exchange between the second heat transfer composition and the first heat transfer composition; wherein the battery includes at least one electrochemical cell having a negative electrode, a positive electrode and an electrolyte including a lithium salt composition, the lithium salt composition including: —at least 99.75% by weight of a lithium salt of bis(fluorosulfonyl)imide; —chlorides Cl—at a mass content strictly less than 20 ppm. Also a system for carrying out the method.
Absstract of: US20260331712A1
0000 The present disclosure relates to a battery module comprising: a plurality of battery cells each including an electrode tab; and a bus bar connected to the electrode tab to electrically connect the plurality of battery cells to each other. The bus bar includes a plate having a plurality of holes. The electrode tab of each of the battery cells is inserted into at least a part of the plurality of holes of the plate. The electrode tab inserted into the hole and the plate are coupled to each other by a welding bead, and the welding bead has a width and a height defined by Equations 1 and 2, respectively.
Absstract of: US20260333647A1
A battery management system (BMS) includes a circuit board in which a first coupling hole for grounding is defined; a first casing mold that accommodates the circuit board, and includes a bushing part disposed inside a second coupling hole recessed from an outside; and a coupling unit that passes through the first coupling hole and the second coupling hole, and allows the circuit board and the bushing part to be in contact with each other while pressing a top surface of the bushing part. The bushing part includes a vertical part in a direction parallel to the second coupling hole, and a horizontal part extending from an end of the vertical part in a direction perpendicular to a direction in which the vertical part is provided. The coupling unit is electrically connected to a case, in which a plurality of batteries are accommodated, to ground the circuit board.
Absstract of: US20260327150A1
0000 A method for producing a multilayer solid state electrolyte (SSE) including alternating dense layers and porous layers, wherein the number of layers is at least two, the method including: adding a first compound including one or more of an alkali metal and/or an alkaline earth metal and a first binder to a first solvent, thereby obtaining a first mixture; adding a second compound including one or more of an alkali metal and/or an alkaline earth metal, a second binder, and a pore-forming compound to a second solvent, thereby obtaining a second mixture; film-casting the first mixture and the second mixture on a substrate until the number of layers is obtained, thereby obtaining a green (multilayer) structure; debinding the green (multilayer) structure in an atmosphere including at least 20 vol. % oxygen at a temperature between 250 °C and 800 °C, and sintering the green structure, thereby obtaining the multilayer SSE.
Absstract of: US20260331647A1
A pouch-type battery case including a cup part having a recessed shape; and a gas pocket part disposed at one side of the cup part and having a recessed shape is provided. A wrinkle part folds or unfolds so that a depth of the gas pocket part varies depending on an internal pressure of the gas pocket part may be defined on a circumferential portion of the gas pocket part. The wrinkle part may include: a convex portion protruding to the outside of the gas pocket part; and a concave portion which is alternately disposed with the convex portion in a depth direction of the gas pocket part. A remaining thickness of the convex portion may be less than a remaining thickness of the concave portion.
Absstract of: US20260331942A1
0000 The present document describes techniques associated with temperature-based battery-charging-profile architectures and applications thereof. Although advances in battery chemistries may enable batteries to be charged at temperatures that are higher or lower than the limits of conventional-battery chemistries (e.g., 0 °C to 60 °C), conventional hardware is generally restricted (e.g., hardcoded) to those limits. However, the temperature-based battery-charging-profile architectures and applications thereof, as described herein, provide a low-cost solution for conventional battery-charging hardware to be able to charge batteries with battery chemistries having expanded charging limits. The techniques described herein enable charging of batteries at temperatures that are outside of the standard JEITA mask by utilizing a switching mechanism operated by a controller that switches, based on the battery temperature, to a different charge profile with a reduced charge rate at a reduced voltage and/or current without affecting the JEITA mask.
Absstract of: US20260331464A1
0000 A negative electrode for secondary batteries according to one embodiment of the present disclosure is characterized by comprising a negative electrode current collector and a negative electrode mixture layer that is arranged on the negative electrode current collector, and is also characterized in that: the negative electrode mixture layer contains a binder and a negative electrode active material that contains a carbon material and an Si-based material; the pore size distribution of the negative electrode mixture layer as determined by a mercury intrusion method has two peak values R1 and R2; the peak value RI is within the range of 0.5 μm to 1.5 μm; the peak value R2 is within the range of 2 μm to 10 μm; and the content of the binder contained in the negative electrode mixture layer is 4% by mass or more with respect to the total mass of the negative electrode active material.
Absstract of: US20260331655A1
A battery pack includes a plurality of cell units each including at least one battery cell and a cell cover surrounding and supporting the at least one battery cell and a pack case accommodating and supporting the plurality of cell units in an internal space, wherein the cell cover includes: a first cover portion covering one side of the at least one battery cell, a second cover portion covering the other side of the at least one battery cell, and a cap portion connecting the first cover portion to the second cover portion and covering an upper end portion of the at least one battery cell, wherein the cap portion is detachably coupled to the first cover portion and the second cover portion.
Absstract of: US20260327462A1
A back adhesive structure, comprising a release film and a back adhesive layer. The release film is provided with a first side and a second side opposite to each other. The first side is connected to a tearing part. The back adhesive layer and the release film are stacked. The back adhesive layer includes at least one partition block. The partition block is provided with at least one first flow channel. A length of the first flow channel extends along a length extension direction of the first side of the release film. The first flow channel is provided with a first flow channel wall and a second flow channel wall that extend along a length direction of the first flow channel and are opposite to each other. A length of the first flow channel wall is not less than a first set value.
Absstract of: US20260331700A1
Provided are a battery pack thermal runaway flue gas treatment system and a battery pack, which mainly solve the problem of the high cost of an existing battery thermal runaway flue gas treatment method. The battery pack thermal runaway flue gas treatment system comprises a thermal runaway flue gas treatment assembly, wherein the thermal runaway flue gas treatment assembly comprises a pressure relief pipe and an exhaust pipe; one end of the pressure relief pipe communicates with an explosion vent of a battery, and the other end of the pressure relief pipe is connected with the exhaust pipe; one end of the exhaust pipe that is disposed within a box body is connected with the pressure relief pipe. Each component of the system has a simple structure, and the cost of the system is very low.
Absstract of: US20260326620A1
0000 An electric vehicle is described that has fuel cells and rechargeable batteries. The fuel cells are sized to produce an electric power output within their peak fuel efficiency range approximately equal to an anticipated average electric power requirement of the electric vehicle over a projected work cycle. The rechargeable batteries are sized to provide electric power up to the anticipated maximum power draw over the anticipated work cycle. An electrical vehicle controller operates the fuel cells within their highest fuel efficiency range during normal operations and maintains the battery state of charge in an optimal longevity range using a portion of the output of the fuel cells. The batteries are employed to handle short-term power requirements that exceed the output of the fuel cells.
Absstract of: US20260331638A1
A thermal regulation device for a battery includes a housing having at least two side walls and a circuit for circulation of the heat transfer fluid, and configured to house the battery including at least two battery cells. The heat transfer fluid circulates around the battery cells being supplied and discharged by input and output collectors. A spacer is installed between the battery cells, at least one of the collectors extends along the side wall. The circuit of the heat transfer fluid is defined at least in part by the spacer, and at least two orifices are arranged on the spacer. Each of the orifices open into the input collector and into the output collector, respectively.
Absstract of: US20260331623A1
A cooling plate for battery thermal management in a battery pack and a process of forming such battery pack is provided. The cooling plate is formed of a composite material in the shape of a hollow structure. This composite material has a composition that includes a thermally conductive filler dispersed within a polymeric matrix. The hollow structure has an external wall with a thickness that is in the range of about 0.3 millimeters (mm) to about 2.5 mm. The hollow structure includes a top section, the top section being in thermal contact with at least one battery; a bottom section; the bottom section being integrally formed with the top section; and one or more channels located between the top section and the bottom section, the one or more channels being configured to allow a fluid to flow there through in order to provide for thermal management of the battery.
Absstract of: US20260331581A1
0000 Provided is a non-aqueous electrolyte including a lithium salt, an organic solvent, and an additive, wherein the additive includes a compound represented by Formula 1, and is excellent in electrode film protection and an O<2 >scavenging effect, so that cycle properties and resistance properties of a lithium secondary battery including the non-aqueous electrolyte may be simultaneously improved,
0000
wherein all the variables are described herein.
Absstract of: US20260326530A1
0000 An electrified vehicle includes a chassis, a body, and a cab. The chassis is configured to support a tractive element and includes a front axle, a rear axle, and a battery box. The battery box includes a first portion disposed between the front axle and the rear axle. The battery box includes a second portion disposed above the rear axle. The battery box also includes a suspension hard point configured to enable relative movement between at least a portion of the body and the tractive element. The battery box is configured to receive module and to transfer energy from the module to a plurality of components of the electrified vehicle.
Absstract of: US20260331488A1
0000 A lithium nickel composite oxide cathode material, wherein under observation of a cross section thereof through scanning electron microscopy, the cross section of the lithium nickel composite oxide cathode material is divided into four parts by dividing a radius of the cross section into four equal-length parts, a porosity of each part as measured is in a range from 3% to 8%, and a total porosity of the cross section is in a range from 3% to 8%. A preparation method thereof includes mixing a hydroxide of nickel, cobalt, and manganese with a sulfate containing M and multi-period, low-temperature pre-sintering to obtain a pre-sintered precursor; mixing a lithium source with the pre-sintered precursor and high-temperature sintering to obtain a first sintered matrix; washing the first sintered matrix with deionized water, drying, then mixing with a coating agent and sintering to obtain the lithium nickel composite oxide cathode material.
Absstract of: US20260331639A1
0000 A battery cooling device includes: a battery case with an accommodation portion accommodating a battery module; an inlet port that is provided at a central portion in a first direction in the battery case and on one end side in a second direction and into which cooling liquid supplied from a pump is introduced; discharge ports discharging, on an upper side of each of a plurality of the cells, the cooling liquid introduced into the inlet port; and a communication path causing the inlet port to communicate with the discharge ports. The communication path includes a branching flow path including first and second branching flow paths. The first branching flow path communicates with the inlet port and branches to one end side of the first direction. The second branching flow path communicates with the inlet port and branches to another end side of the first direction.
Absstract of: US20260331594A1
0000 A rectangular secondary battery includes a wound electrode body and an insulating protective film wound around the electrode body to cover the electrode body, wherein the insulating protective film has at least side circumferential surface parts that extend in a circumferential direction of side circumferential surfaces of the electrode body and a bottom surface part that covers a bottom surface of the electrode body, on the side circumferential surface of the wound electrode body, an end surface overlapping part in which end surface parts on both sides of the insulating protective film overlap each other is formed. The end surface overlapping part has penetration regions and reaching the side circumferential surface of the electrode body, and the periphery of the penetration regions of the end surface overlapping part and the side circumferential surface of the electrode body are bonded and fixed through the penetration regions with an electrically insulating tape.
Absstract of: US20260331680A1
A battery pack capable of lashing a battery group without using a side rail that connects a pair of end plates together is obtained. A battery pack 1 of the present invention has a battery main body 20 having a battery group 30 in which a plurality of single batteries 31 have been laminated and a pair of end plates 40 that are respectively disposed at both ends of the battery group 30 in a lamination direction, an installation portion in which the battery main body 20 is installed, and brackets 50 that fix the battery main body 20 to the installation portion, and the brackets 50 hold the battery main body 20 in a state of being pressurized in the lamination direction.
Absstract of: US20260331593A1
0000 In the present invention, a negative electrode has a non-facing part on the side of the electrode body on the inner end side in the winding direction. The non-facing part has a composite material non-facing part, in which the negative electrode composition layer is formed on at least one surface of the negative electrode core. In the composite material non-facing part, the winding-direction length of a negative electrode composite layer formed on an inner circumference surface of the negative electrode core is 0.3 turns or more along the winding direction of the composite material non-facing part, and the winding-direction length of a negative electrode composite layer formed on an outer circumference surface of the negative electrode core does not exceed ⅔ of the winding-direction length of the negative electrode composite layer formed on the inner circumference surface of the negative electrode core.
Absstract of: US20260331517A1
0000 With respect to a nonaqueous electrolyte secondary battery according to the present disclosure, the positive electrode contains a lithium-containing composite oxide and a sulfonic acid compound that is present on the particle surfaces of the lithium-containing composite oxide; the sulfonic acid compound is represented by formula (I); the negative electrode comprises a negative electrode core body, a first negative electrode mixture layer that is arranged on the surface of the core body, and a second negative electrode mixture layer that is arranged on the surface of the first negative electrode mixture layer; the thickness T1 of the first negative electrode mixture layer and the thickness T2 of the second negative electrode mixture layer satisfy the relational expression 0.1≤T1/(T1+T2)≤0.9; the first negative electrode mixture layer and the second negative electrode mixture layer each contain a negative electrode active material and a binder; the binder content CI in the first negative electrode mixture layer and the binder content C2 in the second negative electrode mixture layer satisfy the relational expression C1>C2. (In the formula, A represents a group 1 element or a group 2 element, R represents a hydrocarbon group; and n is 1 or 2.)
0000
Absstract of: US20260331487A1
0000 The present invention relates to a positive electrode active material for a lithium rechargeable battery, which is a lithium transition metal oxide containing nickel (Ni) and manganese (Mn), wherein the lithium transition metal oxide may be a single particle and has a crystal defect rate of less than 3%.
Absstract of: US20260331698A1
A battery pack and a vehicle including the same are provided. The battery pack is configured to improve energy density and ensure structural stability even when a thermal event occurs. The battery pack includes a cell assembly, a cell case accommodating the cell assembly, the cell case including an open portion at least at one side thereof, and a pack housing to which the cell case is coupled, the pack housing including a venting path facing the open portion.
Absstract of: US20260331598A1
0000 An electrolyte composition and a lithium metal battery comprising the same are provided. The electrolyte composition comprises an ether-based solvent and a fluoroborate-based lithium salt or a non-fluoroborate-based lithium salt dissolved in the ether-based solvent, where the fluoroborate-based lithium salt or the non-fluoroborate-based lithium salt and the ether-based solvent form a complex, and the electrolyte composition has low corrosivity to a lithium metal anode and also enables formation of a uniform coating film on the lithium metal anode.
Nº publicación: US20260326616A1 22/10/2026
Applicant:
BAYERISCHE MOTOREN WERKE AG [DE]
Bayerische Motoren Werke Aktiengesellschaft
Absstract of: US20260326616A1
0000 A method for operating a battery cell for a motor vehicle includes capturing an actual temperature of the battery cell and an actual current which relates to a power demand on the battery cell, performing a temperature prediction to calculate a cell core temperature on the basis of a thermal model of the battery cell using the actual temperature and the actual current, calculating a continuous current using the temperature prediction, predicting a degradation of a power limit using the temperature prediction and the continuous current, and outputting a control command for the operation of the battery cell using the power limit.
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