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BUS BAR AND ELECTRIC STORAGE UNIT

Resumen de: US2025149745A1

The herein disclosed bus bar 1 includes a first joint area that is joined to a terminal part of a first electric storage device, includes a second joint area that is joined to a terminal part of the second electric storage device, and includes a cross-linked area connecting the first joint area and the second joint area. Then, on at least one of the first joint area and the second joint area, a buffering part is provided that is configured to absorb a stress caused by a fluctuation of an interval between the first joint area and the second joint area. The bus bar having the above described configuration can mitigate the stress applied onto the joint part of the terminal part of the bus bar.

SEPARATOR, METHOD FOR MANUFACTURING THE SAME, AND ELECTROCHEMICAL DEVICE INCLUDING SEPARATOR

Resumen de: US2025149736A1

Provided are a separator, a method for manufacturing the same, and an electrochemical device including the separator. According to an embodiment of the present disclosure, a separator is provided which includes a porous substrate; and an inorganic particle layer which is formed on at least one surface of the porous substrate and includes a binder and inorganic particles, wherein the binder includes a first water-soluble polymer including a metal carboxylate group and a second water-soluble polymer based on (meth)acrylamide.

Battery Module

Resumen de: US2025149726A1

A battery module of the present disclosure includes: a plurality of battery cells each including an openable venting portion on a first surface, a bus bar assembly electrically connecting the plurality of battery cells, a cover portion covering the plurality of battery cells and including a through-hole in an area corresponding to an openable venting portion of a battery cell of the plurality of battery cells, and a cap portion covering the through-hole and detachably coupled to the cover portion.

RECHARGEABLE BATTERY

Resumen de: US2025149725A1

A rechargeable battery includes an electrode assembly, a case including a first sheet and a second sheet positioned on an upper side and a lower side of the electrode assembly along a thickness direction of the electrode assembly, respectively, the first sheet and the second sheet defining a receiving portion surrounding the electrode assembly and a sealing portion connected to an edge of the receiving portion, and a vent layer in the sealing portion at a bonding surface of the first sheet and the second sheet, the sealing portion being bent toward a side of the receiving portion, and the vent layer being in contact with a corner of the receiving portion and one end of the sealing portion.

BATTERY PACK

Resumen de: US2025149717A1

Discussed is a battery pack including a housing having a plate part, a plurality of battery devices on a first side of the plate part of the housing, a cover plate on a second side of the plate part of the housing, and a plurality of fastening members configured to fix the cover plate and the housing, in which each of the plurality of fastening members includes a head part and a shank, in which a diameter of the shank is less than a diameter of the head part, and the head part of each of the plurality of fastening members is in contact with the cover plate.

BATTERY

Resumen de: US2025149690A1

A battery comprising a shell and a roll core disposed within the shell, the shell including a shell body and an end cap component, one end of the shell body being provided with an opening, another end of the shell body being provided with a sealing portion, the opening being plugged by the end cap component, the roll core including a first tab and a second tab, the end cap component being provided with a pressure-relief structure, an outside wall of the sealing portion being provided with a first terminal and a second terminal at intervals, the first terminal and the second terminal being insulatively disposed, the first tab being connected to the first terminal, and the second tab being connected to the second terminal.

BATTERY PACK

Resumen de: US2025149674A1

A battery pack for an electrical device including a housing having a first housing portion defining a first compartment and a second housing portion defining a second compartment, a plurality of battery cells disposed within the first compartment and configured to supply power to the electrical device, a circuit board disposed within the first compartment and including a heat generating component, and a heat sink coupled to the second housing portion and disposed adjacent the heat generating component. The heat sink includes a first portion extending toward the heat generating component and disposed within the first compartment, and a second portion extending away from the heat generating component and disposed within the second compartment.

COOLING OF BATTERY PACK OF VEHICLE

Resumen de: US2025149676A1

A battery assembly of a vehicle includes a first cell layer including a first plurality of battery cells, a second cell layer including a second plurality of battery cells, and a cold plate positioned between the first cell layer and the second cell layer. The cold plate includes a plurality of coolant pathways configured to flow a flow of coolant therethrough. The first plurality of battery cells contact a first side of the cold plate and the second plurality of battery cells contact a second side of the cold plate opposite the first side to cool the first plurality of battery cells and the second plurality of battery cells via the flow of coolant through the cold plate.

Battery Module, Manufacturing Method Thereof and Battery Pack Including Battery Module

Resumen de: US2025149673A1

A method of manufacturing a battery module includes accommodating a battery cell stack in which a plurality of battery cells are stacked in a frame member, mounting a supporting jig on an upper surface of the frame member, and injecting a thermally conductive resin through an injection hole formed in a lower surface of the frame member. In the step of injecting the t thermally conductive resin, the supporting jig supports a component inside the frame member so that the component does not move toward the upper surface of the frame member.

BATTERY ASSEMBLY FOR A MOTOR VEHICLE

Resumen de: US2025149675A1

A battery assembly for a motor vehicle includes: heat exchange panels arranged one above another along a first axis, each heat exchange panel being corrugated in the form of crenelations including, in alternation and along a second axis orthogonal to the first axis, a peak and a trough, a fluid flow conduit being formed at at least one of the trough of each crenelation and the peak of each crenelation; and battery modules arranged in parallel and staggered, each battery module including at least one battery cell in pouch form, each battery module being housed in at least one crenelation so as to exchange heat with the fluid. A method for manufacturing such a battery assembly is also disclosed.

SECONDARY BATTERY STATE OF HEALTH ESTIMATION METHOD, SECONDARY BATTERY STATE OF HEALTH ESTIMATION PROGRAM, AND SECONDARY BATTERY STATE OF HEALTH ESTIMATION APPARATUS

Resumen de: US2025147105A1

In a secondary battery state of health estimation method, which estimates the state of health (SOH) of a secondary battery by use of a Weibull law, the total capacity retention rate of the secondary battery, obtained from at least one of data on the secondary battery in operation and a cycle test, is separated into a float capacity retention rate ascribed to deterioration dependent on a use period, and a cycle capacity retention rate ascribed to deterioration dependent on the number of charges/discharges; Weibull coefficients mf, ηf corresponding to the float capacity retention rate, and the float capacity retention rate represented by the following formula (1) are obtained; Weibull coefficients mc, ηc corresponding to the cycle capacity retention rate, and the cycle capacity retention rate represented by the following formula (2) are obtained; and the state of health in a period t or at a cycle number N is estimated from the following formula (A):Equation⁢1Float⁢capacity⁢retention⁢rate=exp⁢{-(tηf)mf}(1)Cycle⁢capacity⁢retention⁢rate=exp⁢{-(Nηc)mc}(2)State⁢of⁢health⁢(SOH)=exp⁢{-(tηf)mf}×exp⁢{-(Nηc)mc}(A)

SYSTEMS AND METHODS FOR ULTRASOUND INSPECTION OF BATTERY CELLS

Resumen de: US2025146981A1

A battery cell inspection system and method are disclosed. The system performs an ultrasound interrogation session of a cell by directing ultrasound at different frequencies at target points across surfaces of the cell, detecting ultrasound at the target points that is transmitted through and/or reflected from the cell, generating response signals from the detected ultrasound at each of the target points, and determining characteristics of the cell including defects, anomalies and cell capacity based upon the response signals. During the session, the transducers are not in contact with the surfaces of the cell, and the transducers and the cell are immersed in an electrically non-conductive fluid. The system can also configure the ultrasound transmitted at the target points into focused beams. Alternatively, an inspection system can be configured to determine characteristics of a cell during a formation stage of the cell.

CAPSULE ENDOSCOPE

Resumen de: US2025143554A1

The present invention provides a capsule endoscope, including: an enclosure, including a main body portion and end portions located at both ends of the main body portion; a hardware component, arranged in an accommodating space enclosed by the enclosure, the hardware component including a battery component, the battery component being arranged in a space corresponding to the main body portion; a first thermal insulation material layer, arranged between the enclosure and the battery component; and a sealing layer, arranged between the hardware component and the thermal insulation material layer. The capsule endoscope can effectively reduce the thermal convection between the battery component and the enclosure, better concentrate the heat inside the enclosure, so that the battery component may reach a higher thermal equilibrium temperature, extend the working time of the battery component, and improve the stability of the capsule endoscope.

OXIDATIVE LEACHING METHODS

Resumen de: US2025146102A1

Disclosed are methods for leaching a material comprising copper in a zero oxidation state, wherein the method comprises contacting the material with an acidic aqueous solution having a pH less than 6 to form a leaching mixture, and oxidizing the copper with an oxidizing agent of formula LipMqM′rOs. M comprises one or more metals chosen from nickel, manganese, and cobalt, M′ comprises one or more metals chosen from Mg, Ca, Ba, Al, Ti, Zr, Zn, Fe, V, Mo, and W; p ranges from 1 to 1.4; q ranges from 0.6 to 2; r ranges from 0 to 1; s ranges from 2 to 4; and a total amount of copper present in the material before leaching in moles divided by a total amount of the oxidizing agent in moles, mols(Cu)/moIs(OA), ranges from n(eM)/8 to 2 n(eM); n(eM)_=2(s-q)-p-r⋅oxm′ and OxM′ is the average oxidation number of M′ determined by calculating the molar average of the most stable oxidation number for each metal, as an oxide, comprised by M′.

NEGATIVE ELECTRODE FOR SECONDARY BATTERY, AND SECONDARY BATTERY

Resumen de: US2025149554A1

In a negative electrode for a secondary battery that is an example of an embodiment, a mixture layer contains graphite particles, and has a lower layer arranged on the core body side of the mixture layer and an upper layer arranged on the surface of the mixture layer. The average thickness of the upper layer is 5% or less than the average thickness of the mixture layer. The volume-based median diameter of graphite particles contained in the lower layer exceeds 10 μm, and the volume-based median diameter of graphite particles contained in the upper layer is 4 μm or greater and 10 μm or less. The BET specific surface area of the graphite particles contained in the lower layer exceeds 4.0 m2/g, and the BET 10 specific surface area of the graphite particles contained in the upper layer is 2.0 m2/g or greater and 4.0 m2/g or less.

ANODE MATERIAL AND PREPARATION METHOD THEREOF, AND LITHIUM ION BATTERY

Resumen de: US2025149552A1

Provided are anode material, as well as lithium ion battery. Anode prepared from anode material act as working electrode, metal lithium act as reference electrode, metal lithium acts as counter electrode, and electrolyte contains metal lithium ions, forming three-electrode battery for charging and discharging, and when anode material is electrified in de-intercalation direction, graph of relationship between differential value dQ/dV obtained by differentiating potential V of working electrode based on reference electrode to charge and discharge capacity Q and potential V of working electrode is obtained; and in graph of relationship between dQ/dV and potential V, differential value dQ/dV at potential V between 20 mV and 80 mV has maximum peak value A1, and differential value dQ/dV of potential V between 120 mV and 210 mV has maximum peak value B1, where B1/A1≤4.

BATTERY BOX, BATTERY, AND ELECTRICAL APPARATUS

Resumen de: US2025149730A1

The present application relates to a battery box, a battery, and an electrical apparatus. The battery box comprises: a box body on which a mounting opening for mounting a pressure relief mechanism is formed; and an auxiliary member provided on an outer surface of the box body, with an exhaust channel in communication with the mounting opening being defined and formed between the box body and the auxiliary member, wherein an exhaust port in communication with the exhaust channel is provided on the auxiliary member.

RECHARGEABLE BATTERY

Resumen de: US2025149724A1

A rechargeable battery includes: an electrode assembly; a case comprising a first sheet disposed at an upper side of the electrode assembly in a thickness direction and a second sheet disposed at a lower side of the electrode assembly along the thickness direction, an accommodating portion at least partially surrounding the electrode assembly and formed by the first and second sheets, a sealing portion, formed by the first and second sheets connected to an edge of the accommodating portion and bent to face a side surface of the accommodating portion, the sealing portion comprising a vent layer provided in the sealing portion, and a cutout portion disposed at one end portion of the sealing portion, wherein the vent layer is disposed on a bonding surface between the first sheet and the second sheet and contacts a corner of the accommodating portion and the cutout portion.

ALL-SOLID-STATE RECHARGEABLE BATTERY

Resumen de: US2025149741A1

An all-solid-state rechargeable battery including a negative electrode; a solid electrolyte layer stacked on the negative electrode; a positive electrode including a positive active material layer on a positive electrode current collector and stacked on the solid electrolyte layer; and a gasket inserted at an edge to overlap the positive active material layer and between the positive active material layer and the solid electrolyte layer, wherein the positive active material layer includes a high-density area corresponding to the gasket and compressed by an intrusion of the gasket, and a low-density area inside the high-density area.

POWER STORAGE DEVICE

Resumen de: US2025149719A1

The power storage device includes a power storage stack including a plurality of power storage cells, a case that opens upward and accommodates the power storage stack, and a restriction member that restricts upward separation of the power storage stack from the case. The case includes a side wall provided on a side of the power storage stack in one direction. The restriction member includes a fixed restriction portion fixed to the side wall, and an interposed restriction portion interposed between the fixed restriction portion and the power storage stack. The fixed restriction portion has a shape in which the thickness in the one direction gradually increases toward the upper side. The interposed restriction portion has a shape in which the thickness in the one direction gradually increases toward the lower side.

LITHIUM SECONDARY BATTERY

Resumen de: US2025149747A1

An embodiment lithium secondary battery includes battery cells stacked in a cell cover, electrode leads electrically connected to the battery cells, busbar units connected to the electrode leads and configured to electrically connect the battery cells, guide rails disposed outside the battery cells and configured to support the busbar units such that the busbar units are movable in a stacking direction of the battery cells, and nonconductors disposed on the guide rails between the guide rails and the busbar units.

BATTERY ASSEMBLY

Resumen de: US2025149715A1

A battery assembly includes a battery casing having a bottom surface on which a cooling channel is provided. A plurality of fastening grooves is formed by recessing the bottom surface at a plurality of points thereon. The battery assembly also includes a battery module. A lower surface of the battery module is seated on the bottom surface of the battery casing. A plurality of coupling units is provided on an edge of the lower surface at a plurality of points thereon. The coupling units are positioned to protrude toward the bottom surface in such a manner as to correspond to the plurality of fastening grooves. When the battery module is seated on the battery casing, respective ones of the coupling units are inserted into respective ones of the fastening grooves, thereby being fastened thereto and keeping the lower surface in contact with the cooling channel on the bottom surface.

IN-VEHICLE BATTERY PACK

Resumen de: US2025149716A1

An in-vehicle battery pack according to the present disclosure is an in-vehicle battery pack including a bracket provided at either the front side or the rear side of the battery pack, wherein the bracket has at least two fastening portions, a first fastening portion is fastened to a floor reinforcement, a second fastening portion is fastened, at a position below the first fastening portion, to a floor bracket fastened to a floor panel, and the first fastening portion and the second fastening portion are located at different positions in a width direction of the bracket.

BATTERY CELL, BATTERY AND ELECTRICAL APPARATUS

Resumen de: US2025149743A1

A battery cell, a battery, and an electrical apparatus are described. The battery cell comprises a shell, an electrode assembly, an insulating member and a support member. The electrode assembly is accommodated in the shell and comprises an electrode main body and a tab, the tab being led out from an end of the electrode main body. The insulating member is accommodated in the shell and is attached to the peripheral side surface of the electrode main body, and the insulating member is provided with an opening. The support member is used for supporting the electrode assembly and covering the opening. The battery cell provided by the present application helps to improve the deformation consistency of parts in the electrode assembly, and reduces the risk of lithium plating of the electrode assembly, thus improving the safety performance of the battery cell.

Battery Modules Having Formed-In-Place Thermal-Management Components, and Methods of Making Such Battery Modules

Nº publicación: US2025149672A1 08/05/2025

Solicitante:

SES SHANGHAI CO LTD [CN]
SES (Shanghai) Co., Ltd