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1138
results.
Updated on
07/09/2025 [07:12:00]
Results 225 to 250 of 1138
Absstract of: US2025279428A1
A cathode for a lithium-ion battery including a layer of a conductive material arranged to collect the current flowing through the cathode, which layer is referred to as the substrate of the cathode, a layer of aligned carbon nanotubes (CNTs) in electrical contact with the substrate of the cathode and mainly extending perpendicular to the substrate of the cathode, solid sulfur which at least partially coats an outer wall of the CNTs and a solid layer of solid lithium sulfate (Li2SO4), which layer is referred to as the outer layer of Li2SO4, covering the layer of CNTs so as to form a stack of layers in which the layer of CNTs is located between the substrate of the cathode and the outer layer of Li2SO4 is disclosed.
Absstract of: US2025279429A1
A positive electrode material and a preparation method thereof, a positive electrode plate, a secondary battery, and an electrical device. The positive electrode material includes a conductive substrate material and an active material distributed on the conductive substrate material. The active material includes a nanoscale phosphate active material. The conductive substrate material includes doping element-modified graphene. Based on a total mass of the positive electrode material, a mass percent of the active material is 75% to 95%, and a mass percent of the conductive substrate material is 5% to 25%. The positive electrode material is prepared by using the doping element-modified graphene as a substrate material that carries nanoparticles of the phosphate active material.
Absstract of: US2025279426A1
This application provides a positive active material, a positive electrode plate, an electrochemical energy storage apparatus, and an apparatus. The positive active material is LixNiyCozMkMepOrAm, or LixNiyCozMkMepOrAm with a coating layer on its surface; and the positive active material is single crystal or quasi-single crystal particles, and a particle size Dn10 of the positive active material satisfies: 0.3 μm≤Dn10≤2 μm. In this application, particle morphology of the positive active material and an amount of micro powder in the positive active material are properly controlled, to effectively reduce side reactions between the positive active material and an electrolyte solution, decrease gas production of the electrochemical energy storage apparatus, and improve storage performance of the electrochemical energy storage apparatus without deteriorating an energy density, cycle performance, and rate performance of the electrochemical energy storage apparatus.
Absstract of: US2025279499A1
A battery module includes: a first battery cell; a first case to accommodate the first battery cell, and having a first through region to expose a portion of a surface of the first battery cell therethrough; a second case to accommodate at least a portion of the first case; and a first heat conducting member between the first battery cell and the second case.
Absstract of: US2025279468A1
A solid-state electrolyte is provided. The solid-state electrolyte includes a ceramic and a polymer binder. The ceramic includes a sulfide-containing electrolyte, and the polymer binder has a molecular weight of from 50 to 2000 kg/mol. A solid-state battery cell is also provided. The solid-state battery cell includes a casing and a cathode and an anode disposed within the casing. The solid-state battery cell further includes a current collector and a solid-state electrolyte membrane separating the cathode and the anode. The solid-state electrolyte includes a ceramic and a polymer binder disposed within the ceramic. The ceramic includes sulfide-containing electrolyte and the polymer binder has a molecular weight of from 50 to 2000 kg/mol. A method of manufacturing a solid-state electrolyte membrane is further provided.
Absstract of: US2025279501A1
A battery pack may include battery cells; a cooling plate on one side of the battery cells; and an insulation member having an insulation part, a pair of first heat transfer parts on both sides of the insulation part, and a first layer in at least a portion of the first heat transfer part and having a higher thermal conductivity than the insulation part. A temperature deviation between top and bottom portions of an electrode plate inside a cell can be reduced, thereby improving the cooling performance of the cell. In addition, the lifespan of a cell can be extended by improving cooling performance, and the safety of a battery pack can be improved by preventing events such as deterioration and heat generation.
Absstract of: US2025279505A1
Immersion cooling systems are provided for managing thermal energy levels within a traction battery pack system. An exemplary immersion cooling system may include a flow control valve that is configured to control a flow of a cooling fluid (e.g., a dielectric fluid) through either a primary closed loop cooling circuit or a secondary closed loop cooling circuit of the immersion cooling system for thermally managing a battery module of a battery pack assembly. A control module may control a position of the flow control valve based at least on a temperature of the cooling fluid exiting the battery pack assembly. When the flow control valve directs the cooling fluid through the secondary closed loop cooling circuit, a portion of the primary closed loop cooling circuit is reserved for providing a dedicated gas exit flow path for expelling battery vent byproducts from the battery pack assembly.
Absstract of: US2025279536A1
This application discloses a battery cell, a battery, and an electric apparatus. The battery cell includes a housing and an electrode terminal. The housing includes a wall portion, where the wall portion is provided with an outlet hole. The electrode terminal is disposed at the outlet hole, where the electrode terminal is provided with a weak region, and the weak region is configured to be ruptured when an internal pressure of the housing exceeds a pressure threshold or a temperature exceeds a temperature threshold, allowing interior of the housing to communicate with exterior of the housing.
Absstract of: US2025279530A1
A battery includes a plurality of battery cells, the reinforcing bracket includes a connecting bracket and a plurality of partition members, the connecting bracket includes a first reinforcing plate, a plurality of avoidance holes that are spaced apart along a first direction are provided on the first reinforcing plate, the plurality of partition members are spaced apart along the first direction on the connecting bracket, and a placement space is defined between the adjacent partition members and the connecting bracket.
Absstract of: US2025277866A1
A battery management system for diagnosing the degradation of secondary batteries equipped with a positive electrode including lithium iron phosphate as a positive electrode active material is provided. The battery management system includes a sensing part configured to measure the voltage and open circuit voltage of a secondary battery; a memory part configured to store the open circuit voltage measured by the sensing part; and a control part configured to determine that the secondary battery is degraded if the amount of change in the open circuit voltage due to charge/discharge cycles of the secondary battery, for at least five charge/discharge cycles, satisfies the following condition: Vn−1−Vn<0.002V, (where Vn−1 represents the open circuit voltage measured during the (n−1)th charge-discharge cycle, Vn represents the open circuit voltage measured during the nth charge/discharge cycle, and n is an integer.)
Absstract of: EP4611166A1
The present invention relates to a pouch cell in which a gas inside a pouch is discharged to the outside of the pouch to delay or prevent an occurrence of a venting phenomenon of the pouch by the internal gas occurring in a charging or discharging process of the pouch cell.The pouch cell includes an electrode assembly, a pouch configured to accommodate the electrode assembly, an electrode lead electrically connected to the electrode assembly to protrude to the outside of the pouch, a pair of lead films including a central portion, which covers a portion of the electrode lead on each of both surfaces of the electrode lead, and an outer portion disposed on each of both sides of the central portion so that the pouch and the electrode lead are insulated from each other, and a passage member disposed between the pair of lead films and attached to the outer portion, wherein, when a pressure inside the pouch increases above a set pressure, a gas moving path is provided between the passage member and each of the lead films.
Absstract of: EP4611127A1
A battery pack may include a plurality of battery cells stacked in a first direction in a vertical coordinate system defined by the first direction, a second direction, and a third direction that are perpendicular to one another, and a pack case configured to accommodate the plurality of battery cells at an inner space therein. Additionally, the pack case may include an upper case and a lower case. Further, the lower case may include the inner space for accommodating the plurality of battery cells, and in which the upper case may include a first heat sink extending in the first direction.
Absstract of: EP4611126A1
A battery pack may include a plurality of battery cells stacked in a first direction in a vertical coordinate system defined by the first direction, a second direction, and a third direction that are perpendicular to one another, and a pack case configured to accommodate the plurality of battery cells at an inner space therein. In addition, the pack case may include a pair of first outer walls extending in the first direction, a pair of second outer walls extending in the second direction, the pair of first outer walls and the pair of second outer walls defining the inner space of the pack case, a longitudinal beam provided between the pair of first outer walls and extending parallel to the pair of first outer walls, and a bottom part provided below the pair of first outer walls, the pair of second outer walls, and the longitudinal beam.
Absstract of: EP4611149A1
Embodiments of the present application provide a battery cell, a battery and an electrical device, which relate to the technical field of batteries. The battery cell includes a shell, the shell includes a pressure relief component, the pressure relief component has a first groove, and the pressure relief component is configured to be capable of cracking along the first groove, so as to release pressure in the battery cell. The first groove includes a first groove section, a second groove section and a third groove section, the first groove section and the third groove section are oppositely arranged, the second groove section is connected to the first groove section and the third groove section, and the residual thickness of the first groove section and the residual thickness of the third groove section are both less than the residual thickness of the second groove section. This is equivalent to the residual thickness of the second groove section being increased, increasing the anti-fatigue strength of the pressure relief component in the region where the second groove section is disposed, decreasing the possibility of the pressure relief component cracking in the second groove section during normal use of the battery cell, increasing the long-term reliability of the pressure relief component, and prolonging the service life of the battery cell.
Absstract of: EP4611159A1
A battery pack may include a plurality of battery cells stacked in a first direction, a pack case with an inner space to accommodate the plurality of battery cells, and a wiring structure provided in the pack case. Further, each of at least two adjacent battery cells among the plurality of battery cells may include an electrode assembly, a cover surrounding the electrode assembly, and a cell lead protruding from a side of the cover in the second direction. Additionally, the cell lead may include a first part of the cell lead and a second part of the cell lead, the first part being located closer to the cover than the second part. Further, the pack case may include a pair of first outer walls extending in the first direction, and a pair of second outer walls extending in the second direction.
Absstract of: EP4611158A1
A battery pack may include a plurality of battery cells stacked in a first direction, and busbars extending in the first direction and configured to electrically connect at least two adjacent battery cells among the plurality of battery cells. Each of the at least two adjacent battery cells among the plurality of battery cells may include an electrode assembly, a cover surrounding the electrode assembly, and a cell lead protruding from a side of the cover in a second direction. Further, the cell lead may include a first part disposed closer to the cover than a second part. In addition, a maximum dimension of the second part may be greater than a maximum dimension of the first part in the first direction, and each of the busbars may extend in the first direction to electrically connect adjacent second parts to each other.
Absstract of: EP4611163A1
A battery pack can include a plurality of battery cells stacked in a first direction, and a pack case configured to accommodate the plurality of battery cells in an inner space therein. In addition, each of at least a pair of adjacent battery cells among the plurality of battery cells can include an electrode assembly, a cover surrounding the electrode assembly, and a cell lead protruding from a side of the cover in a second direction. Further, the cell lead can include a first part disposed closer to the cover than a second part. Additionally, a maximum dimension of the second part can be greater than a maximum dimension of the first part in the first direction. Furthermore, the second part can include a plane perpendicular to a third direction, and the first direction, the second direction, and the third direction that can be perpendicular to one another.
Absstract of: EP4611075A1
Provided is a conductive slurry for a secondary battery electrode that reduces the viscosity of a conductive slurry while simultaneously reducing the surface resistance of a film made from the conductive slurry. One embodiment of the present disclosure provides a conductive slurry for a secondary battery electrode comprising: a conductive material; and a dispersant, wherein the dispersant comprises a cellulose-based compound and an organic acid salt.
Absstract of: EP4611103A1
The present application provides a secondary battery and an electric device. The secondary battery comprises a battery case provided with an accommodating cavity, a battery cell assembly located in the accommodating cavity, and an electrolyte. The electrolyte comprises a chain carboxylic acid ester compound, wherein based on the total mass of the electrolyte, the mass content W of the chain carboxylic acid ester compound satisfies: 0.03 ≤ W/R ≤ 7. The secondary battery has excellent fast charging performance and long service life.
Absstract of: EP4611102A1
The present application provides a secondary battery and an electrical apparatus. The secondary battery comprises a battery case having an accommodating cavity, a cell assembly disposed in the accommodating cavity, and an electrolyte containing a first additive, the first additive comprising a sulphate compound; wherein a ratio W/R of a mass percentage W of the sulphate compound to a residual space R is within a range of 0.03% to 40% based on the total mass of the electrolyte, which enables the secondary battery to achieve a balance between service life and energy density.
Absstract of: EP4611143A1
The present invention provides a structure of a battery module including: a battery cell laminate formed by stacking a plurality of pouch-type battery cells; a frame having open front and rear ends, and accommodates the battery cell laminate; a pair of end plates covering the front and rear ends of the frame; and a flame retardant cover attached to a predetermined area of a surface of the frame, wherein the predetermined area is divided into a plurality of areas, the flame retardant cover includes a plurality of divided covers attached to cover the plurality of areas, respectively, and the frame includes: an upper surface having two or more divided covers attached thereto; and two side surfaces having two or more divided covers attached thereto, respectively.
Absstract of: EP4611146A1
A reinforcing bracket (120) for a battery, a battery (200), and a power consuming apparatus (1000) are provided. The battery includes a plurality of battery cells (10), the reinforcing bracket includes a connecting bracket (121) and a plurality of partition members (122), the connecting bracket includes a first reinforcing plate (1211), a plurality of avoidance holes (121a) that are spaced apart along a first direction are provided on the first reinforcing plate, the plurality of partition members are spaced apart along the first direction on the connecting bracket, and a placement space (124) is defined between the adjacent partition members and the connecting bracket.
Absstract of: EP4611119A1
A battery (200) and a power consuming apparatus (1000) are disclosed. The battery includes a box body (30), and multiple battery cells (10) and a heat conducting member (40) arranged in the box body. Each battery cell is provided with multiple side walls (110). The multiple side walls include a first side wall (111) and a second side wall (112) connected to each other. The first side wall is a side wall with the largest area of the battery cell. The second side walls of at least part of the battery cells are connected to the box body in a heat conducting manner through the heat conducting member.
Absstract of: GB2638728A
A battery module (22) comprising at least two battery cells (12), each with a base area (14), which corresponds to a hexagonally flattened circle, and a lateral area (16), which comprises six flattened zones (18) predetermined by the base area (14), and two of the at least two battery cells (12) are in contact with one another via one of the flattened zones (18) of their lateral areas (16), wherein the battery cells (12) are arranged such that the two flattened zones (18) in contact are arranged congruently in a honeycomb pattern. The contact area between the flattened zones may be built by an adhesive or sheet covering the battery cells. The lateral areas of the battery cells may be used as a terminal possibly a positive contact and/or made of aluminium or possibly a negative contact and/or made of stainless steel. An insulation layer (20) may be arranged between two of the battery cells possibly as part of a cooling system. The battery cell may be built with a jelly roll design. The method of producing shape of the cell may be applying pressure to the lateral area of the battery cell housing.
Nº publicación: EP4611123A1 03/09/2025
Applicant:
FISCHER POWER SOLUTIONS GMBH [DE]
fischer Power Solutions GmbH
Absstract of: EP4611123A1
Dargestellt und beschrieben ist ein Zellträger (2) für mindestens eine elektrische Zelle (3). Die mindestens eine Zelle (3) weist ein zylinderförmiges Zellgehäuse (4) mit einer Zelllängsachse (5), einem Zellmantel (6), einer ersten Zellkappe (7) und einer zweiten Zellkappe (8) auf. Die erste Zellkappe (7) schließt ein erstes Ende des Zellmantels (6) ab und in der ersten Zellkappe (7) ist ein erster elektrischer Zellkontakt (9) und die zweite Zellkappe (8) schließt ein zweites Ende des Zellmantels (6) ab und in der zweiten Zellkappe (8) ist ein zweiter elektrischer Zellkontakt (10). Der Zellträger (2) für die mindestens eine Zelle (3) weist eine Zellaufnahme (11) mit einer Aufnahmelängsachse (12) für eine Aufnahme der Zelle (3) auf. Bei in der Zellaufnahme (11) angeordneter Zelle (3) fallen die Aufnahmelängsachse (12) und die Zelllängsachse (5) zusammen.Die Erfindung löst die Aufgabe, einen Zellträger (2) für Immersionskühlung anzugeben, welcher zumindest einen der Nachteile mechanischer Aufwand, aufwendige Herstellung abmildert oder überwindet.Die Aufgabe ist dadurch gelöst, dass der Zellträger (2) in einer Trägerebene (13) senkrecht zur Aufnahmelängsachse (12) in einen ersten Teilträger (14) und einen zweiten Teilträger (15) aufgeteilt ist und der erste Teilträger (14) und der zweite Teilträger (15) Komponenten des Zellträgers (2) sind, dass der erste Teilträger (14) und der zweite Teilträger (15) auseinanderführbar und zusammenführbar sind, da
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