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1133
resultados
Última actualización
04/09/2024 [08:11:00]
Resultados 1075 a 1100 de 1133
Resumen de: EP4418357A1
A high-voltage composite positive electrode material and manufacturing method thereof are disclosed. The high-voltage composite positive electrode material includes lithium nickel manganese oxide (LNMO) powders and lithium vanadium fluorophosphate (LVPF) powders. The LNMO powders have a first average particle diameter. A molar ratio of the LVPF powders to the LNMO powders is equal to or less than 0.5. The LVPF powders have a second average particle diameter. The second average particle diameter is less than one-tenth of the first average particle diameter, and the LVPF powders and the LNMO powders are mixed by a mechanically mixing method, so that the LVPF powders are coated on the surfaces of the LNMO powders to form the high-voltage composite positive electrode material.
Resumen de: EP4418417A1
The present invention relates to a secondary battery including: an electrode assembly; a case opened on one side and configured to accommodate the electrode assembly therein; a vent coupled to the opening of the case; and a first current collecting plate electrically connected to the electrode assembly, in which the first current collecting plate is welded and electrically connected to at least one of the case and the vent.
Resumen de: EP4418340A1
The present invention relates to a negative electrode including a negative electrode current collector; a first negative electrode active material layer disposed on the negative electrode current collector and including a first carbon-based active material, a first silicon-based active material, and a first binder; and a second negative electrode active material layer disposed on the first negative electrode active material layer and including a second carbon-based active material, a second silicon-based active material, and a second binder, wherein the first silicon-based active material includes a first silicon-based compound represented by SiOx (0≤x<2) and a first metal doped in the first silicon-based compound, and the second silicon-based active material includes a second silicon-based compound represented by SiOy (0≤y<2) and a second metal doped in the second silicon-based compound, wherein a weight ratio of the first metal based on a total weight of the first silicon-based compound and the first metal is greater than a weight ratio of the second metal based on a total weight of the second silicon-based compound and the second metal, and a ratio of a weight percentage of the first binder based on a weight of the first negative electrode active material layer to a weight percentage of the second binder based on a weight of the second negative electrode active material layer is in a range of 0.9:1 to 5.5:1.
Resumen de: EP4418379A1
Disclosed is an electrode assembly, a battery, and a battery pack and a vehicle including the same. One end of the electrode assembly includes a plurality of segment alignments in which the plurality of segment groups are aligned along a radial direction, and an electrolyte impregnation portion provided between segment alignments adjacent in a circumferential direction, wherein an end of the first active material portion is exposed between winding turns of the separator. The segments included in the segment alignment are bent toward the core to form a bending surface region. An end of the separator is spaced apart from a criterion line extending in a winding axis direction along a location corresponding to the plurality of cut grooves by 30% or less of a minimum height of the segments forming the bending surface region.
Resumen de: EP4418394A1
Disclosed in the present disclosure are lithium-ion battery electrolyte and a lithium-ion battery containing electrolyte. The electrolyte includes a main lithium salt, an organic solvent, a first additive, and a second additive. The first additive is selected from difluorophosphoric acid-based lithium trifluoroborate shown in the following formula (A), wherein x+y=4, x ≥ 0, y ≥ 1, and x and y are positive integers; and the second additive is a sulfonate compound or a sulfate compound. The electrolyte of the present disclosure can effectively improve the storage and cycle performance of the battery at high voltage and high temperature, and can ensure that the battery has good low-temperature performance and rate capability.
Resumen de: EP4418337A2
The present invention relates to a secondary battery in which an electrode tab is improved in mechanical strength and a method for manufacturing the same. Also, the secondary battery according to the present invention includes: an electrode provided with a coating portion coated with an active material on an electrode collector and a non-coating portion on which the active material is not applied to the electrode collector in a longitudinal direction of the electrode collector and a notching tab part extending from the coating portion in a width direction of the electrode collector without coating with the active material and overlapping each other to form two or more layers when the electrode is wound.
Resumen de: EP4417579A2
An acidified metal oxide ("AMO") material, preferably in monodisperse nanoparticulate form 20 nm or less in size, having a pH < 7 when suspended in a 5 wt% aqueous solution and a Hammett function H<sub>0</sub> > - 12, at least on its surface. The AMO material is useful in applications such as a battery electrode, catalyst, or photovoltaic component.
Resumen de: EP4418347A1
An anode for a secondary battery includes an anode current collector, a first anode mixture layer on at least one surface of the anode current collector, and a second anode mixture layer on the first anode mixture layer. The first anode mixture layer includes a first silicon-based active material having a carbon coating layer formed on a surface, and a first conductive material, the second anode mixture layer includes a second silicon-based active material doped with a metal, and a second conductive material, and the anode for a secondary battery exhibits a Radial Breathing Mode (RBM) peak in a Raman spectrum obtained from a surface of the second anode mixture layer. An influence of volume expansion/contraction of a silicon-based active material during battery charging/discharging may be alleviated.
Resumen de: EP4418348A1
An anode for a secondary battery is disclosed.In some implementations, the anode includes an anode current collector, a first anode mixture layer on at least one surface of the anode current collector, and a second anode mixture layer on the first anode mixture layer. The first anode mixture layer includes a first silicon-based active material including a carbon coating layer formed on a surface thereof, and a first conductive material. The second anode mixture layer includes a second silicon-based active material doped with a metal, and a second conductive material. The first conductive material has a Raman R value, greater than or equal to a Raman R value of the second conductive material.According to some implementations, volume expansion/contraction of a silicon-based active material may be alleviated during battery charging/discharging.
Resumen de: EP4418344A1
A lithium secondary battery is disclosed.In some implementations, the lithium secondary battery includes a positive electrode including a positive electrode active material including lithium metal oxide including nickel (Ni) and a negative electrode including a negative electrode active material including a silicon-based active material, wherein the positive electrode active material includes 10 wt% or more of lithium metal oxide in the form of single particles based on a total weight of the positive electrode active material, and the negative electrode active material includes 1 to 15 wt% of the silicon-based active material based on a total weight of the negative electrode active material.
Resumen de: EP4418346A1
The disclosed technology relates to an anode for a lithium secondary battery and a lithium secondary battery including the same, the anode for a secondary battery including: an anode current collector; a first anode mixture layer including a first silicon-based anode active material on at least one surface of the anode current collector; and a second anode mixture layer including a second silicon-based anode active material on the first anode mixture layer, wherein the first silicon-based anode active material is SiOx(0≤x<2) doped with a metal element.
Resumen de: EP4418381A2
A herein disclosed manufacturing method includes a battery case assembling step, a case deforming step, a liquid injecting step, and a sealing step. Here, the case deforming step is controlled to make an area size of the high expansion area EA in a front view be equal to or more than 1/3 of a total area size of an expansion surface 14a on a first side wall 14. By doing this, a whole plastic deformation due to an expansion from an inside is caused on the first side wall 14, and thus it is possible to suppress a size variation in the secondary batteries 1 after the manufacture.
Resumen de: EP4418380A2
A herein disclosed manufacturing method includes a battery case assembling step to assemble a battery case, a capacity increasing step at which an inside capacity of the battery case is increased by injecting a gas via an electrolytic solution liquid injection hole to an inside of a battery case having been assembled so as to deform a battery case, a liquid injecting step at which an electrolytic solution is injected via an electrolytic solution liquid injection hole to an inside of a battery case having been deformed, and a sealing step to seal a battery case on which a liquid injection has been performed. Furthermore, regarding the herein disclosed manufacturing method, at the capacity increasing step, a regulation jig is used to regulate a deformation of a part of a side wall. By doing this, it becomes easier to control a deformed position or a deformed amount.
Resumen de: EP4418440A1
The present application provides an electrode sheet, a preparation method thereof, and a lithium ion battery. The electrode sheet includes a current collector and an active material layer disposed on at least one surface of the current collector; a tab recess is disposed inwardly on a long side of the active material layer, a notch is disposed on other long side of the active material layer opposite to the tab recess, an opening is formed on an edge side of the tab recess, the tab recess is exposed from the surface of the current collector, and the notch passes through the current collector along a thickness direction of the electrode sheet. The tab recess of the electrode sheet provided by the present application has a blank foil region with a large area, thereby increasing the contact area between the tab recess and the tab, reducing the internal resistance, improving the charging speed of the battery, and reducing the temperature after charging.
Resumen de: EP4418412A1
The embodiments of the present application discloses a battery cell, a method and a system for manufacturing the battery cell, a battery, and an electrical apparatus. The battery cell includes a housing, an electrode component, and an electrode terminal. The outer surface of the housing is provided with a recess. The electrode component is accommodated within the housing. At least a part of the electrode terminal is accommodated within the recess, and the electrode terminal is configured to be electrically connected to the electrode component to export electric energy of the electrode component. The recess is configured to accommodate at least a part of a busbar of a battery, the busbar is configured to connect electrode terminals of a plurality of battery cells to electrically connect the plurality of battery cells. The embodiments of the present application can save the space occupied by the busbar in the battery, increase the utilization rate of the space in the battery, and improve the energy density of the battery.
Resumen de: EP4418392A2
Die Erfindung betrifft eine Akkupackvorrichtung mit zumindest einer Akkuzelle, die zumindest einen Zellpol aufweist, mit einem Stromableiter, wobei der Zellpol mit dem Stromableiter in einem Anbindungsbereich stoffschlüssig verbunden ist, wobei der Anbindungsbereich zumindest eine Schweißnaht mit einem einzelnen Anfangspunkt und einem einzelnen Endpunkt aufweist, wobei die Schweißnaht über zumindest 90 % ihrer Länge, insbesondere ihrer gesamten Länge, eine gleichmäßige Breite aufweist, wobei die Schweißnaht sich und/oder eine weitere Schweißnaht nicht berührt und/oder kreuzt, wobei die Akkupackvorrichtung je Akkuzelle eine einzelne spiralförmige Schweißnaht oder zumindest zwei parallele, insbesondere geradlinig parallele, Schweißnähte aufweist.
Resumen de: EP4418393A1
The present disclosure relates to a solid electrolyte membrane for an all-solid-state battery including a binder and a solid electrolyte comprising 22 to 34 weight% styrene, relative to the total weight of the styrene-butadiene-styrene copolymer, and to an all-solid-state battery comprising the same.
Resumen de: EP4417463A1
Disclosed is an evaluation system for remanufacturing of a battery system, the evaluation system including a charger/discharger connected to the battery system and used to charge and discharge the battery system; and an electronic device connected to the charger/discharger, receiving data about the battery system from the charger/discharger, and evaluating a remaining lifespan of the battery system based on the received data, wherein the electronic device selects at least one of a regular method and a simple method based on an input of a user, and evaluates a remaining lifespan of the battery system according to the at least one method selected above.
Resumen de: EP4417504A1
A marine drive (50) has a supporting frame (52), an electric motor (65) configured to power a propulsor (72) for generating a thrust force in water, and an electrical power unit (100) for the electric motor (65) which is coupled to the supporting frame (52). Operation of the electrical power unit (100) generates heat that is transferred to the supporting frame (52). A cowling (56) encloses the electrical power unit (100) and covers a first portion (130) of the supporting frame (52). A different, second portion (132) of the supporting frame (52) is exposed to atmosphere outside the cowling (56). The supporting frame (52) and cowling (56) are configured so that the second portion (132) of the supporting frame (52) provides a heat exchanger that transfers the heat from the electrical power unit (100) to the atmosphere.
Resumen de: EP4418426A1
This application discloses a battery tray and a battery formation and capacity-grading device. The battery tray includes a fixed frame; and a fixed component located in the fixed frame, the fixed component including a first limiting assembly and a second limiting assembly, the first limiting assembly including at least two first limiting members which extend along a first direction respectively and are spaced apart along a second direction which intersects the first direction, the second limiting assembly being connected to the first limiting assembly and including at least two second limiting members which are disposed along the first direction and are connected with the first limiting members to form a limiting space for accommodating a battery cell, and the second limiting members being movably disposed along the first limiting members in the first direction, when the second limiting members move in the first direction on the first limiting members, the size of the limiting space formed by the first limiting members and the second limiting members for accommodating the battery cell will also be changed, so the battery tray can accommodate battery cells having different sizes, thus improving the compatibility and versatility of the battery tray.
Resumen de: EP4418362A1
Proposed are a positive electrode active material, a positive electrode plate, a secondary battery, a battery module, a battery pack and a power consuming device. The positive electrode active material has LiMPO<sub>4</sub>, wherein M includes Mn and a non-Mn element, and the non-Mn element satisfies at least one of the following conditions: the ionic radius of the non-Mn element being denoted as a, and the ionic radius of manganese element being denoted as b, |a-b|/b is not greater than 10%; the valence alternation voltage of the non-Mn element being denoted as U, 2 V < U < 5.5 V; the chemical activity of a chemical bond formed by the non-Mn element and O is not less than that of a P-O bond; and the highest valence of the non-Mn element is not greater than 6.
Resumen de: EP4418403A1
An electrode assembly includes a positive electrode, a negative electrode, and a separator positioned between the positive electrode and the negative electrode such that the positive electrode, the negative electrode and the separator are stacked and wound. The electrode assembly further includes an adhesive tape adhered to an inside of the electrode assembly, wherein the adhesive tape includes a porous support and an adhesive layer provided on the porous support and configured to absorb an electrolyte solution and to expand such that it forms an ion migration path after coming into contact with the electrolyte solution. A secondary battery, a battery pack, and a transportation means include such an electrode assembly.
Resumen de: EP4418402A1
Embodiments of this application provide an electrode assembly, a battery cell, a battery, and an electric apparatus. The electrode assembly includes a first electrode plate, a second electrode plate, and at least one separator for separating the first electrode plate from the second electrode plate. The first electrode plate and the second electrode plate have opposite polarities, and the first electrode plate, the second electrode plate, and at least one separator are wound together. A length of the at least one separator is L1, and a length of the first electrode plate is L2, where |L1-L2| ≤ 50 mm.
Resumen de: EP4418193A1
A battery manufacturing method according to the present disclosure includes generating a virtual identifier (ID) corresponding to a battery cell, shifting the virtual ID according to a process of a process for the battery cell, storing the shifted virtual ID and process data generated for the battery cell to be matched with each other, extracting a cell ID for the battery cell, and matching the process data matching the virtual ID corresponding to the cell ID with the cell ID, and transmitting the process data to an upper control system.
Nº publicación: EP4418420A1 21/08/2024
Solicitante:
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd
Resumen de: EP4418420A1
The present invention relates to a battery pack with increased fixation force of a battery module received therein and a device including the same, and more particularly to a battery pack including a battery module accommodating a plurality of battery cells therein, a lower pack case having one surface that is open, the lower pack case being provided with a receiving space configured to receive the battery module therein, and an upper pack case located at the open surface of the lower pack case, wherein a first extension portion is formed at an outer surface of the battery module and extends parallel to the outer surface of the battery module by a predetermined length, wherein the first extension portion is spaced apart from the outer surface of the battery module, wherein a second extension portion is formed at an inner surface of the lower pack case or the upper pack case and extends in a direction toward the first extension portion, and the lower pack case includes a second receiving portion extending parallel to the second extension portion, the second receiving portion being recessed by a predetermined depth, and a device including the same.
BOPI
Sede Electrónica
