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1441
resultados
Última actualización
07/08/2025 [09:25:00]
Resultados 550 a 575 de 1441
Resumen de: WO2025156727A1
A composite current collector and a preparation method therefor, an electrode sheet, a secondary battery and an electric device. The composite current collector comprises a current collector substrate and a current collector metal oxide film disposed on at least one side of the current collector substrate. The metal oxide film has a thickness ranging from 0.5 μm to 2 μm. The composite current collector has high sheet resistance, so that the safety performance of batteries can be improved.
Resumen de: WO2025156704A1
A solid electrolyte material and a preparation method therefor, a solid electrolyte, a semi-solid electrolyte, a positive electrode, and a battery. The solid electrolyte material comprises a compound represented by the following general formula: Aa(M1bM2c)Xd, wherein A comprises one or more of Li, Na, K, Cu and Ag, X is halogen, M1 is a main element, M1 is selected from among one of Ga, Y, In, Mg, Sr, Sc, Al, Fe, Zr, Hf, Ta, Nb, W, Mn, Zn, Co, Mo, Sn, Ca, Pb, Ti, Ru and a lanthanide metal element, M2 is a doping element, M2 comprises one or more elements of groups IIA, IIB, IIIA, IIIB, IVA, IVB, VA and VB, b is greater than the molar ratio of any element in M2, 0.5≤a≤5, 0.2≤b≤2, 0.2≤c≤2, d=a*ε1+b*ε2+c*ε3, ε1 is the weighted average valence of A, ε2 is the weighted average valence of M1, and ε3 is the weighted average valence of M2.
Resumen de: WO2025159624A1
A composite positive electrode, a composite positive electrode manufacturing method, and an all-solid-state battery comprising the composite positive electrode are disclosed. The composite positive electrode comprises: a plurality of sulfur particles with an arithmetic average particle size of 5-10 μm; a plurality of sulfur-containing solid electrolyte particles of formula Li6PS5X (here, X is Cl, Br or I); and a conductive material comprising a plurality of acetylene black carbon particles. The acetylene black carbon particles have an average particle size of 10-100 nm and a BET specific surface area of 50 m2g-1 to 150 m2g-1, and have a quasi-crystalline structure. The sulfur particles, the sulfur-containing solid electrolyte particles and the conductive material are ball-milled to form a milled mixture, and are pressed to form a composite positive electrode.
Resumen de: WO2025159593A1
The present invention relates to an electrolyte for a lithium-sulfur battery, and a lithium-sulfur battery including same. The electrolyte for a lithium-sulfur battery comprises a nonaqueous solvent, a lithium salt, a nitrate and an aryl derivative, wherein the nonaqueous solvent comprises a heterocyclic compound containing one oxygen atom (O) or sulfur atom (S) in the cyclic structure and glycol ether, and the aryl derivative comprises both a selenium-based aryl derivative and a tellurium-based aryl derivative.
Resumen de: WO2025159594A1
The present invention relates to an electrolyte for a lithium-sulfur battery and a lithium-sulfur battery including same. The electrolyte for a lithium-sulfur battery may include a non-aqueous solvent, a lithium salt, a nitrate, and an aryl derivative, wherein the non-aqueous solvent comprises: a heterocyclic compound containing one oxygen atom (O) or sulfur atom (S) in the ring structure; and glycol ether, and the aryl derivative contains at least one of compounds represented by any one of chemical formulas 1 to 4.
Resumen de: WO2025159001A1
This cylindrical battery is characterized by comprising: an electrode body in which a positive electrode and a negative electrode are wound via a separator; a non-aqueous electrolyte; a bottomed cylindrical exterior can that accommodates the electrode body and the non-aqueous electrolyte; a sealing body that closes the opening of the exterior can; and an insulating plate (30) that is disposed between the electrode body and the sealing body and has a through-hole (32). The cylindrical battery is further characterized in that the surface of the insulating plate (30) on the electrode body side is provided with a protrusion (33) extending toward the electrode body along the edge of the through-hole (32) in a region facing the electrode body.
Resumen de: WO2025156522A1
The present disclosure relates to the technical field of batteries. Provided are a bare cell casing production line and a battery cell production line. The bare cell casing production line comprises a bare cell conveying module (1), a coating material conveying module, and an assembling module. The bare cell conveying module is configured to convey a bare cell; an output end of the coating material conveying module and the bare cell conveying module are both connected to the assembling module. The assembling module is configured to assemble a bare cell conveyed by the bare cell conveying module with a coating material conveyed by the coating material conveying module; the coating material conveying module comprises a casing material conveying sub-module (4); the casing material conveying sub-module comprises a casing material feeding mechanism (41), at least two casing material preparation assemblies (42), a feeding conveying line (43), and a moving mechanism. The moving mechanism raises the casing material preparation assemblies from the feeding conveying line and conveys said assemblies to one side of the feeding conveying line. The bare cell casing production line is used for bare cell casing.
Resumen de: WO2025156674A1
A battery casing having explosion-proof score lines (200), a manufacturing method therefor, and a secondary battery. The battery casing having explosion-proof score lines (200) comprises a casing (100), explosion-proof score lines (200) being formed on an outer surface and/or an inner surface of the casing (100). The explosion-proof score lines (200) comprise multiple first score lines (211), (212), (213), (214), (215), (216), (217), (218), (219), (220), (221) and (222) which are disposed at intervals, and multiple second score lines (251), (252), (253), (254), (255), (256), (257), (258), (259), (260) and (261) connected between every two adjacent first score lines (211), (212), (213), (214), (215), (216), (217), (218), (219), (220), (221) and (222). The score line residual values of each of the second score lines (251), (252), (253), (254), (255), (256), (257), (258), (259), (260) and (261) are all lower than the score line residual values of the first score lines (211), (212), (213), (214), (215), (216), (217), (218), (219), (220), (221) and (222). The tearing difficulty of each area of explosion-proof score lines (200) is adjusted by means of the second score lines (251), (252), (253), (254), (255), (256), (257), (258), (259), (260) and (261), such that the tearing difficulty of each area of explosion-proof score lines (200) is relatively similar, so that, when bursting occurs, the area outside the explosion-proof score lines (200) of the casing is prevented from being tor
Resumen de: WO2025156672A1
The present application relates to an electrode assembly, a battery cell, a battery and an electrical device. The electrode assembly comprises at least one positive electrode sheet; at least one negative electrode sheet which is alternately stacked with the positive electrode sheet; and a separator sandwiched between every two adjacent positive electrode sheet and negative electrode sheet, wherein a first accommodating cavity is formed between the positive electrode sheet and the separator adjacent thereto, a second accommodating cavity is formed between the negative electrode sheet and the separator adjacent thereto, and the first accommodating cavity and the second accommodating cavity are independently arranged and are not communicated with each other. According to the present application, the first accommodating cavity and the second accommodating cavity are independently arranged, the first accommodating cavity is filled with a first electrolyte, and the second accommodating cavity is filled with a second electrolyte, so that the first electrolyte and the second electrolyte are arranged in separate partitions, and do not affect each other, thereby effectively reducing the effect of the first electrolyte on a negative electrode and the effect of the second electrolyte on a positive electrode, and improving the battery performance.
Resumen de: KR20250001183U
본 고안은 학습용 이차 전지의 특성 측정 장비를 제공한다. 본 고안에 의한 학습용 이차 전지의 상태 측정 장비의 실시예의 일 양태는, 이차 전지의 특성을 측정하는 장치로서: 상기 이차 전지가 안착되는 베이스 플레이트 및 상기 베이스 플레이트에 대하여 수직 방향으로 연장되는 컨트롤 플레이트를 포함하는 프레임; 상기 컨트롤 플레이트의 일측에 구비되고, 상기 이차 전지를 충전하는 제1충전 유닛; 및 상기 컨트롤 플레이트의 타측에 구비되고, 상기 제1충전 유닛에 의하여 충전되는 상기 이차 전지의 상태 정보를 표시하는 디스플레이 유닛; 을 포함한다.
Resumen de: WO2025159276A1
A secondary battery according to an embodiment of the present invention comprises: a housing that includes a battery can forming an accommodation space therein and a top cap covering one open side of the battery can; an electrode assembly accommodated inside the battery can; and a current collecting plate electrically connected to at least one of the battery can or the top cap. The current collecting plate may include: a current collecting body that connects at least one of the battery can or the top cap to the electrode assembly; and a plating layer, having a greater electrical resistance than the current collecting body, on at least a portion of a welding surface of the current collecting body.
Resumen de: WO2025159604A1
The present invention relates to a positive electrode material capable of improving the performance of a lithium secondary battery, and relates to a positive electrode material, a positive electrode comprising same, and a lithium secondary battery, the positive electrode material comprising: a first positive electrode active material having an olivine structure; and a second positive electrode active material having a layered structure, wherein the first positive electrode active material has a voltage drop (x) according to equation 1 described in the present specification, satisfying a specific range.
Resumen de: WO2025156684A1
A battery cell and a battery pack. An accommodating cavity (101) is provided in a casing (100), and the accommodating cavity (101) is provided with an opening. A top cover assembly (200a) comprises a top cover (200) and terminal posts (210) passing through the top cover (200), wherein the top cover (200) covers the opening. Cores (300) are disposed in the accommodating cavity (101), each core (300) comprising a body (300a) and a tab (310) connected to the body (300a), wherein the tab (310) is arranged on the side of the body (300a) that is close to the top cover (200). A connector (400) is disposed between each tab (310) and the top cover (200). The top cover (200) is provided with a recessed cavity (201) at a position corresponding to each tab (310); one end of each connector (400) is connected to a terminal post (210), and the other end of each connector (400) is provided with a bent portion (401); and each bent portion (401) is located in a recessed cavity (201) and connected to the tab (310). Thus, the structural space of the top cover (200) can be effectively utilized, such that the height space in the battery cell which is occupied by the connection between each connector (400) and the tab (310) can be reduced, and the risk of the connector (400) pressing the tab (310) and causing inverted insertion of the tab (310) into the core (300) can also be effectively reduced, improving the safety performance of the battery cell.
Resumen de: WO2025159576A1
Disclosed in the present specification are an electrode assembly and a secondary battery. Disclosed in the present specification is an electrode assembly in which an electrode and a separator called a safety-reinforcing separator (SRS) are combined, exhibiting low resistance and excellent electrical characteristics in a normal state of a secondary battery and rapidly converting into an insulator to thereby secure stability in an abnormal state of the secondary battery. Disclosed also in the present specification is a secondary battery including the electrode assembly.
Resumen de: WO2025159573A1
The present specification discloses an electrode assembly and a secondary battery. The present specification discloses an electrode assembly formed by combining: an electrode which exhibits low resistance and excellent electrical characteristics in a normal state of a secondary battery, and in an abnormal state of the secondary battery, may be rapidly converted into an insulator so as to enable securing stability; and a separator which is referred to as a so-called safety-reinforcing separator (SRS). The present specification also discloses a secondary battery comprising the electrode assembly.
Resumen de: WO2025158923A1
In a non-aqueous electrolyte secondary battery (10), a negative electrode (12) has a negative electrode core and a negative electrode mixture layer provided on the negative electrode core. The thickness of the negative electrode core is 15 μm-30 μm inclusive. The negative electrode mixture layer contains a silicon-containing material and a carbon material as negative electrode active materials, and the ratio of the total thickness of the negative electrode mixture layer to the thickness of the negative electrode core is 4-10 inclusive. The silicon-containing material includes an amorphous carbon phase and a silicon phase dispersed in the amorphous carbon phase, and the content of the silicon-containing material in relation to the negative electrode active materials is 30% by mass-60% by mass inclusive.
Resumen de: WO2025159583A1
A separator according to an embodiment of the present invention comprises: a porous polymer substrate; and a porous coating layer formed on both surfaces of the porous polymer substrate, wherein: the separator has one end (A), the other end (A'), and one point (B) between the one end (A) and the other end (A') in the machine direction; the thickness of the separator is constantly maintained from the one end (A) to the other end (A'); the thicknesses of the porous polymer substrate and the porous coating layer are constantly maintained in a region (AB) between the one end (A) and the one point (B); and the thickness of the porous polymer substrate decreases and the thickness of the porous coating layer increases in a region (BA') between the one point (B) and the other end (A').
Resumen de: WO2025159615A1
According to exemplary embodiments, a secondary battery manufacturing system is provided. The system comprises: a data matrix reader configured to read a data matrix of a semi-finished electrode product, generate an unrecognized image including the data matrix which fails to be read, and match the unrecognized image with a virtual ID; a first server configured to store the unrecognized image transmitted from the data matrix reader; and a processor configured to determine a feature, which interferes with reading the data matrix, so as to generate classification data on the basis of the unrecognized image transmitted from the first server.
Resumen de: WO2025156654A1
A composite separator and a preparation method therefor, and a battery and an electric device. The composite separator comprises a base membrane, wherein the base membrane has a first surface and a second surface arranged opposite each other, a non-woven fabric layer being provided on the first surface of the base membrane, the non-woven fabric layer comprising non-woven fabric material formed by polymer fibers, and the porosity of the non-woven fabric layer being at least 40%. The composite separator is used in the battery, the non-woven fabric layer being adjacent to a negative electrode sheet of the battery. The composite separator is formed by compounding the base membrane and the non-woven fabric formed by the polymer fibers, and when the composite separator is used in the battery, the non-woven fabric layer is close to the side of the negative electrode sheet; thus, on the basis of the characteristics of the non-woven fabric layer of the composite separator, the cycle stability, cycle life and safety of the battery are improved.
Resumen de: WO2025156556A1
A conductive slurry and a preparation method therefor, a composite electrode, and a flow battery. The conductive slurry is prepared from a conductive carbon black, carbon nanotubes, polyvinylidene fluoride and N-methylpyrrolidone. The composite electrode comprises a first electrode, a bipolar plate, a second electrode, and the conductive slurry as described above, wherein the conductive slurry is disposed between the first electrode and the bipolar plate and disposed between the second electrode and the bipolar plate. The conductive slurry is not only stable in the initial chemical state of a vanadium electrolyte of a common flow battery, but also has electrochemical stability during charging and discharging after a voltage is applied thereto. The conductive slurry has a long service life and does not degrade over time as the battery is used. The conductive slurry has a good bonding effect, and also enables the contact resistance to be reduced after the bipolar plate and carbon felt electrodes are compounded. Moreover, the conductive slurry itself has a good electrocatalytic activity, thereby providing reaction sites for a vanadium electrolyte commonly used in a flow battery and thus improving the efficiency and performance of the battery.
Resumen de: WO2025156666A1
A preparation method for a solid electrolyte containing an Anderson-type polyoxometalate as an additive and a use of the solid electrolyte in a solid-state battery. The specific preparation method comprises: mixing a certain mass percentage of a polyoxometalate with a solid electrolyte, and then carrying out ball milling; next, carrying out pressing and then carrying out calcining to finally obtain a solid electrolyte modified by using the polyoxometalate as a filler. A polyoxometalate having excellent electrochemical performance is used as a filler to fill gaps of solid electrolytes, improving interfaces between electrolytes and electrodes, and thus improving the performance of solid electrolytes in all-solid-state batteries.
Resumen de: WO2025160151A1
There is disclosed, by way of example, a reversible power supply includes a polarity correction circuit. The reversible power supply may receive, for example, a battery, which may be inserted with either polarity. An illustrative polarity correction circuit includes a first stage transistor network to bootstrap the circuit, and an amplified second stage to operate the circuit in its steady state. There is also shown a single stage amplified polarity correction circuit. As an illustrative use case, the reversible power supply may supply a high-voltage power supply for an image intensifier.
Resumen de: WO2025160510A1
A composition for a lithium-ion battery anode includes an active material layer comprising silicon nanoparticles and a conductive binder, and a carbon nanotube current collector. The lithium-ion battery anode is a self-standing lithium-ion battery anode. A method of preparing a lithium-ion battery anode includes spinning a carbon nanotube fabric via chemical vapor deposition, winding the carbon nanotube fabric onto a collector, coating a slurry of silicon nanoparticles onto the carbon nanotube fabric, and optionally annealing the slurry of silicon nanoparticles. A lithium-ion battery includes a cathode, a free-standing anode, a separator, and an electrolyte. The free-standing anode includes a carbon nanotube current collector and an active material layer including silicon nanoparticles and a conductive binder.
Resumen de: WO2025160485A1
An inspection system and method for inspecting a battery cell are disclosed. The system interrogates a battery cell by transmitting ultrasound signals into the battery cell at target points, detects ultrasound reflected from the battery cell at each of the target points, and generates response signals from the detected ultrasound at each of the target points. The system also detects one or more misaligned layers within the cell based on the response signals for each target point and calculates a misalignment score based upon the response signals. The misalignment score indicates a level of layer misalignment of each battery cell. Additionally, the inspection system can perform an action associated with each battery cell based upon the misalignment score, such as placing each battery cell in a pass bin or a fail bin or notifying an operator via a message, in examples.
Nº publicación: WO2025159455A1 31/07/2025
Solicitante:
LG ENERGY SOLUTION LTD [KR]
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Resumen de: WO2025159455A1
According to exemplary embodiments, the present invention comprises the steps of: placing a plurality of battery cell assemblies and an electronic component on a pack housing including a base plate, a center beam on the base plate, and first and second cross beams, wherein the center beam is perpendicular to both the first and second cross beams; and painting a refractory coating on the plurality of battery cell assemblies.
BOPI
Sede Electrónica
