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1499
results.
Updated on
08/08/2025 [07:36:00]
Results 275 to 300 of 1499
Absstract of: EP4597696A1
The present invention relates to a secondary battery including: an electrode assembly; and a pouch type exterior including an accommodation part, which accommodates the electrode assembly, and a sealing part provided to surround at least a portion of the accommodation part to seal the accommodation part, wherein the sealing part includes: a first folding portion provided so that an outer end of the sealing part is folded toward the accommodation part along a first folding line spaced a first distance from the outer end of the sealing part toward the accommodation part; and a second folding portion provided so that the first folding portion is folded toward the accommodation part along a second folding line spaced a second distance from the first folding line toward the accommodation part, wherein, when a predetermined line spaced a predetermined distance from the outer end of the sealing part toward the accommodation part is referred to as a sealing line, the sealing part includes a sealed portion in which a portion from the outer end of the sealing part to the sealing line is sealed by fusion, wherein, when a distance from the outer end of the sealing part to the accommodation part is referred to as a width of the sealing part, a distance from the sealing line to the accommodation part is 45% to 55% of the width of the sealing part.
Absstract of: EP4597712A1
Disclosed is a battery module, including batteries arranged along a first direction that is a thickness direction of the battery and an integrated busbar cover plate. The integrated busbar cover plate is disposed at tops of the batteries. Limiting through hole groups arranged at intervals along the first direction are provided on the integrated busbar cover plate, correspond to the batteries one by one, and are matched with poles of corresponding batteries. In the first direction, a length of a limiting through hole in the limiting through hole group near an end part of the integrated busbar cover plate is greater than that of a limiting through hole in the limiting through hole group located in a middle part of the integrated busbar cover plate. The length of the limiting through hole is a size of the limiting through hole along the first direction.
Absstract of: EP4597084A1
The present invention relates to a method for detecting a metal foreign material in an electrode active material, wherein the method includes a first step of dissolving an electrode active material in an aqueous nitric acid solution to form a metal foreign material extraction solution, a second step of plating a metal foreign material in the metal foreign material extraction solution on an electrode, and a third step of measuring an amount of the metal foreign material plated on the electrode.
Absstract of: WO2025114532A1
The present invention relates to a battery housing (10) for receiving at least one battery component, wherein the battery housing (10) has an outer wall (20), which at least partially surrounds a receiving volume (11), and a cooling device (30). The cooling device (30) has a base plate (40) having a first connecting surface (42) and a cover plate (50) having a second connecting surface (52), wherein the connecting surfaces (42, 52) of the base plate (40) and of the cover plate (50) are connected to each other with an integral bond at least in an edge region (60), which is formed circumferentially around the cooling device (30), in such a way that a fluid duct (70) is formed for conducting a cooling fluid between the base plate (40) and the cover plate (50). The cooling device (30) is connected to the battery housing (10) in such a way that the entire edge region (60) of the cooling device (30) is arranged within the outer wall (20) of the battery housing (10), and the cooling device (30) forms the housing base (12) of the battery housing (10). The battery housing (10) has at least one inner wall (80) which is connected to the outer wall (20), the inner wall (80) extending between two opposite wall sections of the outer wall (20), and the inner wall (80) of the battery housing (10) being at least partly connected to a cooling surface (51) of the cooling device (30), the cooling surface facing the receiving volume (11). The invention also relates to a battery having a battery h
Absstract of: EP4597137A1
A battery abnormality diagnosis apparatus according to an embodiment disclosed herein includes an obtaining unit configured to obtain voltage-state-of-charge (SOC) profiles of a plurality of battery units, an identifying unit configured to identify a designated first number of ranks of each of the plurality of battery units, based on the voltage-SOC profiles, and a diagnosing unit configured to diagnose abnormality of the plurality of battery units, based on changes of the ranks.
Absstract of: EP4597683A1
The present disclosure relates to an electrode for a lithium secondary battery which not only effectively suppresses heat generation or ignition and thus has further improved stability, but also enables provision of batteries exhibiting excellent electrochemical characteristics, and a lithium secondary battery comprising the same.
Absstract of: EP4597732A1
A busbar module (5) includes a case (6) that is assembled to a battery module (2), and a flexible substrate (7) that is held in the case (6). A main body (71) of the flexible substrate (7) includes a trunk portion (711), and a branch portion (712) branched from the trunk portion (711). Meanwhile, the case (6) includes a trunk holding portion (61), a branch holding portion (62) that is positioned closer to the battery module (2) side than the trunk holding portion (61), and a connecting wall (63) that connects the trunk holding portion (61) and the branch holding portion (62). The trunk holding portion (61), the branch holding portion (62), and the connecting wall (63) form a stepped portion. Further, the branch portion (712) includes a curved portion (7122) that curves smoothly in a connecting portion with the trunk portion (711). A holding portion (64) that holds the main body (71) in a state in which a curved shape of the curved portion (7122) is maintained is formed in the case (6).
Absstract of: EP4597788A1
This application provides a battery pack. The battery pack includes a battery unit, a switch unit, a power balancing circuit, and a sampling circuit. The battery unit includes N electrochemical cells that are connected in series, and the switch unit includes N+1 switches, where N is an integer greater than or equal to 2. First ends of any two adjacent switches in the N+1 switches are respectively connected to two ends of one of the N electrochemical cells, and second ends of the any two adjacent switches are respectively connected to a first end and a second end of the switch unit. Both the sampling circuit and the power balancing circuit are connected to the first end and the second end of the switch unit. The sampling circuit is configured to obtain a power parameter of each of the N electrochemical cells by turning on or off the N+1 switches. The power balancing circuit is configured to perform power balancing on at least one electrochemical cell in the N electrochemical cells based on the N power parameters obtained by the sampling circuit, so that a power difference between the N electrochemical cells is reduced after the at least one electrochemical cell is charged or discharged, an inconsistency between the electrochemical cells is reduced, and a service life of the battery pack is improved.
Absstract of: EP4597612A1
A positive electrode active material includes: (a) a first positive electrode active material, including a layered lithium nickel-manganese-based composite oxide, in a form of single particles; and (b) a second positive electrode active material, including a lithium-manganese-rich composite oxide, in which a molar ratio of lithium to a total metal content of the lithium-manganese-rich composite excluding lithium is about 1.1 to about 3 and a manganese content based on 100 mol% of the total metal content of the lithium-manganese-rich composite excluding lithium is greater than or equal to about 60 mol%, the second positive electrode active material being in a form of single particles. Also disclosed are a positive electrode and a rechargeable lithium battery, each using the positive electrode active material.
Absstract of: EP4597611A1
A positive electrode active material includes: (a) a first positive electrode active material, including a first layered lithium nickel-manganese-based composite oxide, in a form of secondary particles in which a plurality of primary particles are agglomerated; (b) a second positive electrode active material, including a second layered lithium nickel-manganese-based composite oxide, the second positive electrode active material having a smaller average particle diameter (D<sub>50</sub>) than the first positive electrode active material, and the second positive electrode active material being in a form of single particles; and (c) a third positive electrode active material, including a lithium-manganese-rich composite oxide, in which a molar ratio of lithium to a total metal content of the lithium-manganese-rich composite oxide excluding lithium is about 1.1 to about 3 and a manganese content based on 100 mol% of the total metal content of the lithium-manganese-rich composite oxide excluding lithium is greater than or equal to about 60 mol%, the third positive electrode active material being in a form of single particles. Also disclosed are a positive electrode and a rechargeable lithium battery, each using the positive electrode active material
Absstract of: EP4596500A2
A cathode active material for a lithium secondary battery according to embodiments of the present disclosure includes a lithium-transition metal oxide including a transition metal including nickel (Ni). A molar ratio of lithium to elements except for lithium and oxygen in the lithium-transition metal oxide is 1.04 to 1.08, and a molar fraction of cobalt (Co) in the transition metal is 0.05 or less. A lithium secondary battery including the cathode active material for a lithium secondary battery and having improved structural stability and charge/discharge efficiency is provided.
Absstract of: EP4597605A2
The disclosure relates to an electrolyte, a lithium ion battery, and an electricity-consumption device. The electrolyte includes a borate-based additive. A mass fraction w1 of the borate-based additive in the electrolyte satisfies 0.01% ≤ w1 ≤ 2%.
Absstract of: EP4597613A1
A positive electrode active material includes: (a) a first positive electrode active material, including a layered lithium nickel-manganese-based composite oxide, in a form of secondary particles in which a plurality of primary particles are agglomerated; and (b) a second positive electrode active material, including a lithium-manganese-rich composite oxide, in which a molar ratio of lithium to a total metal content of the lithium-manganese-rich composite oxide excluding lithium is about 1.1 to about 3 and a manganese content based on 100 mol% of a total metal content of the lithium-manganese-rich composite oxide excluding lithium is greater than or equal to about 60 mol%, the second positive electrode active material being in a form of single particles. Also disclosed are a positive electrode and a rechargeable lithium battery, each using the positive electrode active material.
Absstract of: EP4596302A1
A distribution box, a battery pack, and a vehicle. The distribution box includes a box body, a positive circuit, a negative circuit, a circuit breaker, and a heat dissipation apparatus. The positive circuit is arranged inside the box body. The positive circuit includes a first conductive connection member and a second conductive connection member. The negative circuit is arranged inside the box body. The negative circuit includes a third conductive connection member and a fourth conductive connection member. A first positive terminal of the circuit breaker is connected with an end of the first conductive connection member. A second positive terminal of the circuit breaker is connected with an end of the second conductive connection member. A first negative terminal of the circuit breaker is connected with an end of the third conductive connection member. A second negative terminal of the circuit breaker is connected with an end of the fourth conductive connection member. The heat dissipation apparatus is arranged at a heat dissipation opening of the box body. In the distribution box of the present disclosure, the circuit breaker is used, which reduces a quantity of components and devices in the distribution box and reduces manufacturing costs. Through use of the heat dissipation apparatus, heat dissipation of the components and devices in the distribution box can be accelerated through the heat dissipation opening, thereby increasing a service life of the components and devic
Absstract of: EP4597625A1
The disclosure relates to an electrolyte, a battery, and an electricity-consumption device. The electrolyte includes a lithium salt and a first additive. The first additive includes a cyclic compound containing two sulfonate groups, and a mass fraction w1 of the first additive in the electrolyte satisfies 0.01% ≤ w1 ≤ 2%.
Absstract of: EP4597631A2
The invention pertains to the use of porous, chemically interconnected, carbon nanofibres-comprising carbon networks as electrochemically active material in the anode of lithium or sodium batteries. It has been found that said carbon nanofibres-comprising carbon networks can beneficially be used in the anode of lithium or sodium batteries when added in an amount of 10 - 100 wt%. The benefits include a high capacity, high lifetime (stability over extended cycling), high charge and discharge rate and being resilient during manufacture and use. The porous, chemically interconnected, carbon nanofibres-comprising carbon networks can be used in the anode of lithium or sodium batteries of many areas of technology, such as smartphones, laptops and electric and hybrid vehicles.
Absstract of: EP4597669A1
The present application refers to secondary battery and battery module, battery pack and apparatus including the secondary battery. In particular, the secondary battery includes a housing as well as an electrode assembly and an electrolyte contained in the housing; the electrode assembly includes a positive electrode plate, a negative electrode plate and a separator, and the positive electrode plate includes a positive current collector and a positive electrode film that is disposed on at least one surface of the positive electrode current collector and includes a positive electrode active material; the positive electrode active material includes one or more of lithium nickel cobalt manganese oxide and lithium nickel cobalt aluminum oxide; the negative electrode plate includes a negative electrode current collector and a negative electrode film that is disposed on at least one surface of the negative electrode current collector and includes a negative electrode active material; the negative electrode active material includes silicon-based material and carbon material; and the secondary battery satisfies: 0.05≤Z≤0.6. The secondary battery has the characteristics including high energy density, fast charging and long cycle life.
Absstract of: EP4597521A2
The present invention relates to a ceramic solid electrolyte, which is a key component of an all-solid-state lithium secondary battery, for improving safety, and a method for synthesizing the same. The present invention relates to an oxide-based conductive ceramic of a new NASICON structure of the chemical formula Li1+xZr2XxP3-xO12 (X=Sn, Ge, or Y, 1.5≤ x≤2.3). The present invention relates to a method for manufacturing an oxide-based conductive ceramic having the above novel NASICON structure.
Absstract of: EP4597598A1
Examples of this disclosure include a negative electrode for a rechargeable lithium battery, and a rechargeable lithium battery including the same. The negative electrode for the rechargeable lithium battery includes a current collector, a negative active material layer, and a binder layer between the current collector and the negative active material layer, wherein the negative active material layer has a surface roughness of about 2 µm to about 8 µm.
Absstract of: WO2025134064A1
The invention relates to a method (12) for manufacturing a cell for a secondary battery, the method comprising: • - a first operation (O1) of moving a stacking table, wherein the movement is carried out in a first direction of movement; • - a second operation (O2) of unrolling a separator film onto the stacking table, wherein the separator film comprises a first electrode previously positioned thereon; • - a third operation (03) of moving the stacking table in a second direction of movement, opposite the first direction of movement; • - a fourth operation (04) of depositing a second electrode onto the separator film, wherein the second electrode is of opposite polarity to the first electrode; • - a fifth operation (05) of moving the stacking table in the first direction of movement.
Absstract of: GB2637678A
The invention relates to a directly cooled battery module (100) comprising at least one module casing (40) and a plurality of battery cells (10) arranged within the module casing (40). The module casing (40) encloses the plurality of battery cells (10) at least in some regions, and the battery cells (10) has a vertical axis (20) and first and second end faces (16, 18), which are mutually spaced in the direction of the vertical axis (20), and are arranged successively in the form of a cell packet (38) in a stacking direction (26) which is transverse to the vertical axis (20). The battery module also comprises a fluid supply device (50) with at least one inlet opening (54), which conducts a cooling liquid (60) to the battery cells (10) when operated as intended, and at least one outlet opening (56) for freely discharging the cooling liquid (60) out of the module casing (40) and/or the cell packet (38) and into the surroundings of the module casing (40), in particular into a battery housing (210) when arranged in a battery housing (210) as intended. The invention additionally relates to a battery (200) comprising at least one directly cooled battery module (100).
Absstract of: EP4597730A2
A battery pack may include a plurality of battery cells arranged in an array and a plurality of bus bars. Each bus bar of the plurality of bus bars may be configured to electrically couple a pair of battery cells in series by attaching to a positive terminal of a first battery cell and a negative terminal of a second battery cell. Each bus bar of the plurality of bus bars may include at least one bypass structure configured to be electrically coupled to a bypass wire. When the bypass wire is electrically coupled to a pair of bus bars, the bypass wire enables at least one battery cell of the plurality of battery cells to be bypassed.
Absstract of: EP4597689A1
A battery temperature adjustment system includes: a temperature adjustment device (800) adjusts a temperature of a power storage device (100); and a processor (301). A setting mode of the temperature adjustment device (800) includes: a first mode that is a setting in which, in response to a travel route including a charging facility, the temperature is adjusted within a first temperature range suitable for charging at a time of arrival at the facility; and a second mode that is a setting in which, in response to receiving a predetermined operation for adjusting the temperature within a second temperature range suitable for charging or traveling, the temperature is adjusted within the second temperature range. The processor (301) controls the temperature adjustment device (800) to adjust the temperature according to the setting mode; and when the setting mode is the first mode, give priority to the second mode in a case where the predetermined operation is received.
Absstract of: EP4597734A1
A busbar assembly according to one embodiment of the present disclosure comprises: a busbar that includes a body portion containing a bent portion, and end portions extending from both ends of the body portion and having a through hole formed therein; an insulating layer that is insert-injection molded to surround the body portion, and a cap that surrounds the end portion.
Nº publicación: EP4596308A1 06/08/2025
Applicant:
TOYOTA MOTOR CO LTD [JP]
TOYOTA JIDOSHA KABUSHIKI KAISHA
Absstract of: EP4596308A1
A battery temperature adjustment system includes: a temperature adjustment device (800) adjusts a temperature of a power storage device (100); and a processor (301). A setting mode of the temperature adjustment device (800) includes: a first mode in which, in response to a travel route of includes a charging facility, the temperature is adjusted within a first temperature range suitable for charging at a time of arrival at the facility; and a second mode in which, in response to receiving a predetermined operation for adjusting the temperature within a second temperature range suitable for charging or traveling, the temperature is adjusted within the second temperature range. The processor (301) controls the temperature adjustment device to (800) adjust the temperature according to the setting mode; and when the setting mode is the first mode, rejects the predetermined operation and maintain the first mode in a case where the predetermined operation is received.
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