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746
results.
Updated on
21/08/2026 [07:19:00]
Results 600 to 625 of 746
Absstract of: US20260237867A1
0000 An electrode plate including a current collector, a first transition layer, a second transition layer, two active substance layers, a first conductive member, and a second conductive member. The current collector includes a support layer, a first conductive layer, and a second conductive layer. The first and second transition layers are located in a first segment of the current collector. A first conductive member and a second conductive member are welded to form a plurality of weld marks, at least one weld mark being connected to the current collector. The current collector includes a first section and a second section, a projection of an edge section of the active substance layer adjacent to the weld marks coincides with a projection of the first section. The second section is provided with the weld marks. The tensile strength of the first section is less than the tensile strength of the second section.
Absstract of: US20260234025A1
0000 Provided is a method for single-crystallization regeneration of a waste cathode material by a vacuum pyrolysis process. The method includes: mixing a polycrystalline ternary cathode material of a waste lithium-ion battery, nickel stearate, and a lithium salt to be uniform to obtain a mixture, and subjecting the mixture to melting, and then vacuum calcination to obtain a regenerated single crystal ternary cathode material.
Absstract of: US20260237833A1
An electrochemical apparatus including a housing and a pressure relief mechanism. A first wall of the housing is provided with a first through hole. The pressure relief mechanism covers the first through hole, the pressure relief mechanism includes an adhesive film, the adhesive film is capable of melting or losing adhesion when heated to form a first pressure relief channel, a second wall of the housing is provided with a score groove, and the score groove is capable of rupturing when an internal pressure of the housing reaches a threshold to form a second pressure relief channel. A depth S1 of the score groove and a thickness S2 of the second wall meet 0.1*S2≤S1≤0.95*S2.
Absstract of: US20260237644A1
A silicon-carbon composite material, a preparation method therefor, a secondary battery, and an electric apparatus are provided. The silicon-carbon composite material includes a carbon matrix having a pore structure and a silicon-based material distributed in the pore structure. The material is characterized using a button battery by plotting a differential capacity (dQ/dV) versus voltage curve obtained from a charge-discharge process. A maximum value of dQ/dV within a voltage range of 0.26 V to 0.35 V is defined as VA, and a maximum value of dQ/dV within a voltage range of 0.42 V to 0.52 V is defined as VB, wherein a ratio VA/VB is greater than or equal to 1.40. The silicon-carbon composite material exhibits improved cycling performance and enhanced first-cycle charge-discharge efficiency.
Absstract of: US20260233941A1
A pallet, battery production line, and control method. The pallet includes a pallet body including a placement region configured to place a battery cell, at least two first position-limiting assemblies including a first position-limiting block movable along the first direction, and a second position-limiting assembly disposed on a side of the placement region along a second direction and including a second position-limiting block movable along the second direction. One part of the first position-limiting assemblies is disposed on one side of the placement region along a first direction, and the other part is disposed on the other side. The first position-limiting block is provided with a first position-limiting surface and a second position-limiting surface. The second position-limiting block is provided with a third position-limiting surface. The second position-limiting surface and the third position-limiting surface are respectively located on opposite sides of the placement region along the second direction.
Absstract of: US20260237714A1
0000 The tray device comprises a tray and at least one pressurizing mechanism arranged on the tray. The pressurizing mechanism comprises end plate pressurizing tools arranged in pairs. The end plate pressurizing tools are used for pressurizing battery modules in a first direction; at least one end plate pressurizing tool comprises a mounting seat and a pressurizing member; the pressurizing member is used for being in contact with an end plate of each battery module; an insertion slot is formed in one of the mounting seat and the pressurizing member, and the other of the mounting seat and the pressurizing member is provided with an insertion member that is fitted into the insertion slot to detachably mount the pressurizing member onto the mounting seat; the insertion member is fitted into the insertion slot in a second direction of the tray device, the second direction is perpendicular to the first direction.
Absstract of: US20260237715A1
A bottom support apparatus, a grabbing device, a production line, and a method for replacing the type of a bottom support apparatus. The bottom support apparatus comprises a plurality of mounting units, a bottom support set, and a plurality of type-replacing mechanisms. Each mounting unit comprises two mounting platforms spaced apart along a first direction, and the plurality of mounting units are spaced apart along a second direction. The bottom support set comprises a plurality of bottom support boards. The plurality of bottom support boards are spaced apart along the second direction, and each bottom support board corresponds to the two mounting platforms of one of the mounting units. Two ends of each bottom support board along the first direction are each detachably connected to one of the type-replacing mechanisms. The type-replacing mechanisms are detachably connected to the mounting platforms. The first direction is perpendicular to the second direction.
Absstract of: US20260237842A1
0000 A battery module has an improved structure to control the discharge of a flame generated in the battery module. A battery pack and a vehicle can include the battery module. The battery module includes a cell assembly having a plurality of battery cells stacked side by side and having a taping member partially attached to at least a top sealing portion; a module terminal electrically connected to the cell assembly; and a module case configured to have an outer side at which the module terminal is installed, accommodate the cell assembly in an inner space thereof, and have a top hole communicating with the inner space and formed at an upper side thereof. At the top of the cell assembly, at least a part of an unattached region of the taping member is located in a portion where the top hole is formed.
Absstract of: US20260237818A1
A battery case includes: a frame that holds an end portion of a battery in a stacking direction of the battery; a cross member that is disposed so as to extend in the stacking direction of the battery; and a cross bracket that couples the frame and the cross member. The cross bracket includes a base portion that is joined to the frame, and a pair of corner bracket portions that extends from the base portion, that sandwiches a wall portion of the cross member from both sides, and that is joined to the wall portion. A cutout is provided at a site where a surface of each of the pair of corner bracket portions on a side of the wall portion and a surface of the base portion on the side of the wall portion intersect.
Absstract of: WO2025074107A1
The invention relates to a non-aqueous electrolyte composition for an electrochemical cell comprising a presodiation reagent which comprises one or more sacrificial sodium salts. The invention also relates to an electrochemical cell which has been presodiated using said non- aqueous electrolyte. Devices, methods, and uses including said non-aqueous electrolyte are also disclosed.
Absstract of: EP4790826A2
Disclosed is a battery cell, which includes an electrode assembly including a cell body and an electrode tab provided to at least one side of the cell body, a cell case configured to accommodate the electrode assembly therein, an electrode lead coupled to the electrode tab and extending from the cell case, and a tab protection module accommodated in the cell case and configured to cover at least a portion of the electrode tab, the tab protection module including a lead positioning guide and a corresponding positioning guide insert portion adapted to receive the positioning guide insert portion, wherein the positioning guide insert portion is configured to couple to the electrode lead to guide a position of the electrode lead relative to the cell case.
Absstract of: EP4790780A2
0001 A cylindrical battery cell includes a battery can accommodating a jelly-roll type electrode assembly therein, and a cap covers and closes an open end of the battery can. The cap is bonded to a tab of an electrode of the electrode assembly. The cap includes two or more electrode connecting portions, each of which protrudes into the interior of the battery can along the axial direction. The electrode connecting portions are spaced apart from one another in a circumferential direction about a center of the cap, and at least two of the electrode connecting portions are positioned on opposing sides of the center of the cap. The cap functions as both a current collector plate and the cap, thus increasing energy density. Manufacturing methods are also disclosed, as is a battery pack including the battery cell and a vehicle equipped with the battery pack.
Absstract of: EP4790789A2
The present disclosure relates to an auxiliary device for monitoring a module and/or pack of an electric battery system. The auxiliary device provides module-level and/or pack-level measurements and may be flexibly placed anywhere within an electric battery monitoring system.
Absstract of: EP4790810A2
0001 This application relates to a battery box, a battery, and an electric apparatus. A first end plate (10), a second end plate (20), and a first middle frame (30) jointly enclose a semi-accommodating space (50) with an opening at one end, and a height of the semi-accommodating space (50) in an entry direction (a) of a battery module (200) entering the space is smaller than a height of the battery module (200) in the direction, that is, the semi-accommodating space (50) is shallower than the battery module (200). In this way, when the battery module (200) is placed into the semi-accommodating space (50), it is less likely to fall and cause damage to the battery module (200). After the battery module (200) is safely placed into the semi-accommodating space (50), a second middle frame (40) is spliced with the first middle frame (30) to seal the semi-accommodating space (50), thereby encapsulating the battery module (200).
Absstract of: EP4790824A2
0001 An energy storage device (battery) 1 includes an electrode assembly 20 having current correcting tabs 28, 29 each of which is formed of a plurality of projecting portions 24b, 26b projecting from a first straight line portion 20c on one side in a stacking direction of electrode sheets 21, 22. The electrode assembly 20 is housed in a case (exterior body) 10. The energy storage device further includes current collectors 60A, 60B which are electrically connected to the external terminals 50A, 50B disposed on the case 10. The current collectors 60A, 60B are connected to the current collecting tabs 28, 29 arranged in a stacking direction of the electrode sheets 21, 22 on a second straight line portion 20d side where the projecting portions 24b, 26b are not formed.
Absstract of: EP4790829A1
0001 An end-cover assembly, an energy storage apparatus, and an electricity-consumption device are provided in the present disclosure. The end-cover assembly includes a top cover and an explosion-proof valve. The top cover defines an explosion-proof hole. The explosion-proof hole includes a recessed-platform portion. A welding ring portion of the explosion-proof valve is mounted at the recessed-platform portion, and is fixedly connected to a hole wall of the recessed-platform portion. The welding ring portion and a connecting ring portion of the explosion-proof valve are both disposed around an explosion-proof-valve body. The connecting ring portion is fixedly connected between the welding ring portion and the explosion-proof-valve body. A score portion of the explosion-proof valve is disposed around a rupture portion. The score portion is rotatable relative to a fixing portion after the score portion is broken. When an internal pressure of the energy storage apparatus is too large, the rupture portion is flipped downward to relieve pressure. By pulling a handle of the explosion-proof valve, the fixing portion can be flipped downward to relieve pressure. Meanwhile, pulling the handle can separate the explosion-proof-valve body from the welding ring portion, the welding ring portion enters a broken state, and the explosion-proof hole is used for electrolyte injection. The end-cover assembly provided in the present disclosure can avoid the explosion-proof valve from failing
Absstract of: EP4790768A1
0001 Provided are a positive electrode active material and a preparation method therefor, a positive electrode sheet, a battery, and an electric device. The positive electrode active material comprises Na<4-a>AFe<3-c>B
Absstract of: EP4790377A1
A liquid leakage detection circuit (100), comprising: a sampling circuit (110), the sampling circuit (110) having an output end connected to an input end of an excitation source circuit (120) and used for sending a control signal to the excitation source circuit (120); and the excitation source circuit (120), the excitation source circuit (120) having an output end connected to a signal detection circuit (130) and used for generating an excitation signal on the basis of the control signal and sending the excitation signal to the signal detection circuit (130), and the excitation signal being a periodic pulse signal. The sampling circuit (110) is further used for collecting a liquid leakage state signal of a battery pack (200) in the signal detection circuit (130), wherein the liquid leakage state signal is generated in response to the excitation signal, so that liquid leakage detection for the battery pack can be achieved. The present invention further relates to a liquid leakage detection system, method and apparatus, a device, and a battery management system.
Absstract of: EP4790815A1
According to exemplary embodiments, a battery pack is provided. The battery pack may include: a bottom plate; a battery cell assembly on the bottom plate including a plurality of battery cells arranged in a first direction; a cover on the battery cell assembly; a venting guide structure including a base sheet on the cover and a venting sheet on the base sheet; and a lid plate on the venting guide structure. The venting guide structure may include: a first venting passage between the base sheet and the venting sheet; and a second venting passage between the venting sheet and the lid plate. The first venting passage and the second venting passage may be separated in the first direction.
Absstract of: EP4790779A1
0001 The present disclosure relates to a grip device. The grip device according to an aspect of the present disclosure is capable of picking up or placing a cylindrical secondary battery, comprising a gripper comprising a pad and a frame supporting the pad; and an actuator configured to move the gripper in one direction, wherein the pad comprises a pad part comprising a grip surface capable of contacting the outer circumferential part of the cylindrical secondary battery and a coupling part provided on one side of the pad part and coupled to the frame in a shape fitting manner.
Absstract of: EP4790750A1
Provided are an electrode sheet, an electrode assembly, and a battery cell, relating to the field of battery technology. The electrode sheet includes a current collector, an active material layer, and an electrode tab. The current collector includes a body and a protruding portion protruding outwardly from a part of an edge of the body. The active material layer is provided on the body and the protruding portion. The electrode tab is connected to the body.
Absstract of: EP4790757A1
A cathode active material for a lithium secondary battery according to embodiments of the present disclosure includes first lithium transition metal oxide particles and second lithium transition metal oxide particles having a median particle diameter (D50) smaller than that of the first lithium transition metal oxide particles. The first lithium transition metal oxide particles and the second lithium transition metal oxide particles each include a lithium-sulfur-metal-containing part and satisfy predetermined relationships of a particle diameter ratio and a sulfur coating amount difference therebetween.
Absstract of: EP4790782A1
The present disclosure relates to a separator for a rechargeable battery, and a rechargeable battery including the separator. The separator for a rechargeable battery includes a porous substrate, and a coating layer formed on at least one surface of the porous substrate. The coating layer includes a core-shell binder having a core and a shell surrounding the core, and the shell has an adhesive functional group at a terminal thereof and has an alkylene glycol group-containing structural unit and a cyano group-containing structural unit.
Absstract of: EP4789850A1
The present disclosure relates to a tape supply unit, an apparatus for manufacturing a pouch for a secondary battery using the same and a method for manufacturing a pouch for a secondary battery using the same, and more particularly, to a tape supply unit for simplifying the structure and manufacturing process and improving process efficiency and productivity, an apparatus for manufacturing a pouch for a secondary battery using the same and a method for manufacturing a pouch for a secondary battery using the same. The apparatus for manufacturing the pouch for the secondary battery according to the present disclosure is configured to manufacture the pouch for the secondary battery including a pouch body accommodating an electrode assembly and a sealing portion disposed at the pouch body, and includes a support unit configured to support the sealing portion at a side, and a tape supply unit configured to supply an adhesive tape to a target adhesive surface of the sealing portion, wherein the tape supply unit includes a supply roll configured to supply a tape feed including the adhesive tape and a release sheet to which the adhesive tape is attached, and a mover configured to apply pressure to the release sheet to maintain tension of the tape feed, and move toward the support unit to attach the adhesive tape to the target adhesive surface.
Nº publicación: EP4789806A1 12/08/2026
Applicant:
LG ENERGY SOLUTION LTD [KR]
LG ENERGY SOLUTION, LTD.
Absstract of: EP4789806A1
0001 The present disclosure relates to a welder for welding an electrode tab of a secondary battery, and the welder may include an anvil on which the electrode tab is mounted, and a horn configured to move from an opposite direction to the anvil with the electrode tab positioned therebetween to weld the electrode tab. The horn may include a body portion including a first contact surface that contacts the electrode tab, and an expansion portion detachably coupled to the body portion, the expansion portion including a second contact surface that extends from the first contact surface and contacts the electrode tab.
BOPI
Electronic site
