Resumen de: FR3129528A1

Procédé de réalisation d’une batterie tout-solide à partir d’un accumulateur électrochimique métal-ion à électrolyte liquide, à des fins d’essais abusifs thermiques. L’invention concerne un procédé de réalisation d’une batterie tout-solide directement à partir d’un accumulateur métal-ion à électrolyte liquide complètement réalisé et qui présente un état de charge électrique prédéterminé, de préférence égal à 100%. Figure pour l’abrégé : Fig.10

Resumen de: WO2023089256A1

One aspect of the invention relates to a method (100) for the thermal monitoring of the modules of a vehicle traction battery, comprising the steps, executed by vehicle control means, of: determining (101) a temperature of each of said modules, and if the temperature of at least one of said modules is above a maximum temperature threshold over a predetermined first period of time, said method (100) comprises the steps of: displaying (102) an indicator light on an instrument panel of said vehicle, and limiting or preventing (103) the charging and discharging of said traction battery.

Resumen de: WO2023089029A1

The invention relates to a device (1) for thermal management of an electrical and/or electronic component (2) liable to release heat during its operation, comprising at least one face, the device comprising a housing (3), the housing comprising a main compartment (4) defining at least one receptacle (5) able to receive the electrical and/or electronic component (2), the receptacle (5) being designed to receive a dielectric fluid and being delimited by a first (6) and second longitudinal wall, a first side wall (7), a second side wall (8) and a bottom wall (9), characterized in that at least one of the walls (6, 7, 8, 9) has at least one semi-open channel (10) defining a dielectric fluid circulation path.

Resumen de: FR3129530A1

Enveloppe pour module de batterie ou pack-batterie, à membrane étanche destinée à permettre une circulation d’un fluide caloporteur en son sein pour le refroidissement optimal des accumulateurs du module ou du pack, en laissant dégagées les bornes de sortie. L’invention concerne une enveloppe (10), pour module (M) de batterie comprenant une pluralité d’accumulateurs (A1, A2, …) à emballage rigide sous la forme d’un boitier, l’enveloppe comprenant une membrane étanche (11) délimitant un volume (V) de liquide caloporteur au plus près de chaque accumulateur du module, la membrane étant percée d’une ouverture (12) d’amenée du liquide caloporteur, d’une ouverture (13) d’évacuation du liquide caloporteur, et d’une pluralité d’ouvertures (14) de maintien et d’étanchéité dont la périphérie de chacune est délimitée par une lèvre d’étanchéité souple (15) adaptée pour positionner et maintenir un des accumulateurs et garantir l’étanchéité autour de son boitier, chaque lèvre d’étanchéité étant destinée à être agencée pour laisser dégagée au moins une borne de sortie d’un des accumulateurs, en dehors du volume de liquide caloporteur. Figure pour l’abrégé : Fig.8

Resumen de: US2023163288A1

A lithium oxide coated with carbon, wherein the carbon contains co-continuous fibrous carbon having a three-dimensional network structure in which carbon is branched.

Resumen de: WO2023090642A1

The present invention relates to a secondary battery and a module comprising same. The inner surface of a case in the secondary battery is coated with a gas adsorption material, which adsorbs internal gas at a normal operating temperature based on a critical temperature and desorbs the adsorbed internal gas at a high temperature, thus allowing the battery to quickly reach a critical point of internal pressure and arrive earlier at an internal gas discharge time when exposed to abnormally high temperatures, and increasing the safety of the battery with respect to heat transfer and fires. In addition, the secondary battery lowers the pressure in the battery case by adsorbing gas generated in a normal operation temperature range, and thus has the excellent effects of suppressing the deformation of the battery case and preventing a decrease in battery performance.

Resumen de: WO2023090577A1

Disclosed are an electrode assembly, a battery, and a battery pack and vehicle including same. In the electrode assembly, an uncoated portion of an electrode includes a segment fragment section divided into a plurality of segment fragments, and the segment fragment section includes a plurality of segment fragment groups separated by intergroup pitches along the winding direction. One end portion of the electrode assembly includes a plurality of segment fragment alignment units. In winding turns corresponding to the plurality of segment fragment alignment units, the intergroup pitches of the segment fragment groups arranged in the same winding turn are substantially the same, and the pitches between the segment fragment groups are larger in winding turns of regions close to the outer circumferential surface than in winding turns of regions close to a core.

Resumen de: WO2023090575A1

Disclosed are an electrode assembly, a battery, and a battery pack and vehicle including same. The electrode assembly is an electrode assembly in which a first electrode, a second electrode, and a separator interposed therebetween are wound around a winding axis so as to define a core and an outer circumferential surface thereof. The first electrode comprises a first active material portion on which an active material layer is coated along a winding direction and a first uncoated portion on which the active material layer is not coated, the first uncoated portion includes a plurality of independently bendable segment pieces, cutting grooves are interposed between adjacent segment pieces along the winding direction, and the bottom of the cutting grooves may be rounded.

Resumen de: WO2023090659A1

A device for measuring the insulation resistance between a ground and a battery including multiple battery cells comprises: a first voltage distribution unit that distributes voltage between a cathode of a battery and a ground; a second voltage distribution unit that distributes voltage between an anode of the battery and a ground; a first switch (SW1) connecting the cathode of the battery and the first voltage distribution unit; and a second switch (SW2) connecting the anode of the battery and the second voltage distribution unit, wherein the device reduces a current switching cycle of the first and second switches to be shorter than a previous switching cycle when a first voltage, the output of the first voltage distribution unit, is saturated during an On duration of the first switch (SW1), or a second voltage, the output of the second voltage distribution unit, is saturated during an On duration of the second switch (SW2).

Resumen de: WO2023090624A1

The present invention relates to a gripper and a secondary battery transfer device comprising same and, more specifically, to a gripper for transferring a secondary battery, and a secondary battery transfer device comprising same. The present invention provides a gripper for pressing and fixing a secondary battery, which comprises: a pouch comprising an accommodation unit for accommodating an electrode assembly, and a gas pocket unit extending from the accommodation unit; and an electrode lead protruding from the pouch, the gripper comprising: at least one electrode lead-fixing unit for pressing and fixing the electrode lead; and at least one gas pocket unit-fixing unit for pressing and fixing the gas pocket unit.

Resumen de: US2023163286A1

Battery electrode compositions and methods of fabrication are provided that utilize composite particles. Each of the composite particles may comprise, for example, a high-capacity active material and a porous, electrically-conductive scaffolding matrix material. The active material may store and release ions during battery operation, and may exhibit (i) a specific capacity of at least 220 mAh/g as a cathode active material or (ii) a specific capacity of at least 400 mAh/g as an anode active material. The active material may be disposed in the pores of the scaffolding matrix material. According to various designs, each composite particle may exhibit at least one material property that changes from the center to the perimeter of the scaffolding matrix material.

Resumen de: US2023163294A1

A lithium metal composite oxide having a layered structure, containing at least Li, Ni, and an element X, in which the element X is one or more elements selected from the group consisting of Co, Mn, Mg, Ca, Sr, Ba, Zn, B, Al, Ga, Ti, Zr, Ge, Fe, Cu, Cr, V, W, Mo, Sc, Y, Nb, La, Ta, Tc, Ru, Rh, Pd, Ag, Cd, In, and Sn, L/D50 that is a ratio of an average primary particle diameter L to a 50% cumulative volume particle size D50 is 0.3 to 1.5, and, in powder X-ray diffraction measurement using a CuKα ray, a crystallite diameter A calculated from a diffraction peak within a range of 2θ=44.5±1° is 700 Å or less.

Resumen de: US2023163296A1

A battery module, a battery pack, and an electric apparatus are provided. In some embodiments, the battery module includes a first type of cell and a second type of cell that are cells of different chemical systems, where the first type of cell includes n first cells, the second type of cell includes m second cells, n and m each are selected from an integer greater than 1, at least one of the first cells and at least one of the second cells are electrically connected in series, and the first cell and the second cell satisfy at least the following relationships: 0.08≤ΔRB/ΔRA≤3.50, and 0.10 mΩ/100 cycles≤ΔRA≤0.40 mΩ/100 cycles, where ΔRA is a discharge resistance growth rate of the first cell, and ΔRB is a discharge resistance growth rate of the second cell; and IMPB

Resumen de: US2023163285A1

This lithium ion battery comprises a positive electrode having a positive electrode mixture layer that contains a positive electrode active material, and a negative electrode having a negative electrode mixture layer that contains a negative electrode active material; and this lithium ion battery is charged and discharged by the movement of lithium ions between the positive electrode and the negative electrode. The negative electrode mixture layer contains a negative electrode active material that is represented by general formula M3Me2X7 (wherein M contains at least one element of La, Ce, Ba, Sr, Zr, Ca, Mg and Y; Me contains at least one element of Ti, V, Cr, Nb, Mn, Ni, Fe, Co and Cu; and X contains at least one element of Ge, Si, Sn, Al, P, Sb and B), and a binder that contains ammonium carboxymethyl cellulose (NH4—CMC).

Resumen de: US2023163295A1

Exemplary embodiments of positive electrode active materials in the form of single particles, and a method of preparing each of them, are provided. The single particles of the exemplary embodiments include single particles of a nickel-based lithium composite metal oxide, having a plurality of crystal grains, each having a size of 180 nm to 300 nm, as analyzed by a Cu Kα X-ray (X-rα). The single particles include a metal doped in the crystal lattice thereof. One embodiment includes a surface coating. The total content of the metal doped in the crystal lattice thereof and the metal of the metal oxide coated on the surface thereof is controlled in the range of 2500 ppm to 6000 ppm.

Resumen de: WO2023090576A1

Disclosed are an electrode assembly, a battery, and a battery pack and vehicle including same. A first electrode of the electrode assembly includes a first active material portion coated with an active material layer along the winding direction and a first uncoated portion not coated with an active material layer. At least a portion of the first uncoated portion is defined as an electrode tab. The first uncoated portion includes a plurality of segment fragments that can be independently bent along the winding direction and are exposed to the outside of a separator. The plurality of segment fragments are aligned along the radial direction of the electrode assembly to form a plurality of segment fragment alignment units spaced apart in the circumferential direction. An end portion of the first active material portion between the segment fragment alignment units adjacent in the circumferential direction may include an electrolyte-impregnated portion exposed between winding turns of the separator.

Resumen de: WO2023090573A1

Disclosed are an electrode assembly, a battery, and a battery pack and a vehicle including same. One end portion of the electrode assembly comprises: a plurality of segment fragment alignment units in which a plurality of segment fragment groups are aligned along the radial direction; and an electrolyte-impregnated portion in which an end portion of an active material portion between the segment fragment alignment units adjacent in the circumferential direction is exposed between winding turns of a separator, wherein segment fragments included in the segment fragment alignment units form a bending surface area, and an end portion of the separator may be spaced apart from a reference line, extending in the winding axis direction along a position corresponding to a cut groove between the segment fragments, by a distance no greater than 30% of the minimum height of the segment fragments forming the bending surface area.

Resumen de: WO2023090395A1

In the present invention, a cooling floor member (100A) cools battery cells, said cooling floor member (100A) comprising a metal underfloor member (101), a flat metal floorboard (102), and a partition member (105) that is a thermoplastic resin composition (106). The region surrounded by the metal underfloor member (101), the flat metal floorboard (102), and the partition member (105) is a coolant passage (104) through which coolant flows. The metal underfloor member (101) and/or the flat metal floorboard (102) comprise/comprises a polypropylene layer (160) or a polycarbonate-unit-containing polyurethane layer (161). The metal underfloor member (101) and/or the flat metal floorboard (102) are/is joined to the partition member (105) interposed by a layer (140) that is compatible with the thermoplastic resin composition (106) and either the polypropylene layer (160) or the polycarbonate-unit-containing polyurethane layer (161).

Resumen de: WO2023090574A1

The present invention provides an electrode assembly, a battery, a battery pack, and a vehicle. In an electrode assembly, a first non-coated part provided at the end of a long side of a first electrode includes a segment piece section divided into multiple segment pieces which can be independently bent by multiple cutting grooves provided along a winding direction thereof. The segment piece section includes multiple segment piece groups arranged while having a spaced pitch between the groups along the winding direction. The multiple segment piece groups constitute one or more segment piece alignment parts at a side of the electrode assembly. At least a part of the central points of winding-turn arcs, at which p segment piece groups included in the segment piece alignment part are positioned, is not positioned on a predetermined alignment line extending from the center of a core in the radial direction thereof.

Resumen de: US2023163292A1

This positive electrode for secondary batteries is provided with a positive electrode collector and a positive electrode mixture layer that is arranged on the positive electrode collector. The positive electrode mixture layer contains a positive electrode active material that contains a lithium-transition metal composite oxide and carbon fibers each having an outermost peripheral diameter of 20 nm or less; the lithium-transition metal composite oxide contains 80% by mole or more of Ni relative to the total number of moles of metal elements excluding Li; an alkaline earth metal element is present on the particle surfaces of the oxide; and the content of the carbon fibers relative to the total amount of the positive electrode active material is from 0.01% by mass to 1.0% by mass.

Resumen de: US2023163281A1

The invention relates to composite materials comprising lithiated or partially-lithiated graphite or graphene, and silicon having particles sizes from about 1 µm to about 100 µm, and that have an electrochemical rest potential less than about 2 V measured against Li/Li+, wherein graphitic material is mixed with silicon powder in a molar ratio of 9:1 to 1:9 and with lithium powder to an amount of the lithium in the composite material in the range of about 10 molar% to 100 molar% of the stochiometrically maximally possible lithium absorption, and to methods for production thereof.

Resumen de: US2023163283A1

An anode for a lithium secondary battery according to an embodiment of the present invention includes an anode current collector, a primer layer formed on a surface of the anode current collector, and an anode active material layer including a first anode active material layer and a second anode active material layer sequentially disposed on the primer layer. Each of the first anode active material layer and the second anode active material layer includes a silicon-based active material. A ratio of a content of the silicon-based active material in the second anode active material layer relative to a content of the silicon-based active material in the first anode active material layer among a total content of the silicon-based active material included in the anode active material layer is greater than 1.25 and less than 5.

Resumen de: US2023163293A1

A positive active material for a nonaqueous electrolyte energy storage device according to one aspect of the present invention is a positive active material for a nonaqueous electrolyte energy storage device containing a lithium transition metal composite oxide having an α-NaFeO2 structure, the positive active material further containing aluminum, in which the lithium transition metal composite oxide contains at least one of nickel and cobalt, and manganese, a content of manganese in a transition metal. in the lithium transition metal composite oxide is 0.6 or less in terms of molar ratio, and in a charged state at a potential of 4.35 V vs. Li/Li+ in a state where there is no charge history in which the potential reaches 4.5 V vs. Li/Li+ or more, an oxygen positional parameter of the positive active material determined from crystal structure analysis by a Rietveld method when a space group R3-m is used. for a crystal structure model based on an X-ray diffraction pattern is 0.265 or more and 0.269 or less.

Resumen de: WO2023090368A1

This secondary battery includes an electrode wound body in which a laminated structure obtained by laminating a positive electrode and a negative electrode with a separator interposed therebetween is wound around a central axis extending in a first direction. The separator has a laminated portion in which three or more base materials are laminated, and at least two of the three or more base materials are folded back in the center region which is on the inner peripheral side with respect to the inner peripheral side end of a negative electrode current collector in the electrode wound body. In the electrode wound body, the inner peripheral side end of the positive electrode, the negative electrode, and the laminated portion overlap each other.

Resumen de: WO2023090367A1

In this secondary battery, a plurality of radially adjacent first edge parts of an electrode winding body in a wound positive electrode exposed part and/or a plurality of radially adjacent second edge parts in a wound negative electrode exposed part are bent toward a central axis to overlap each other. In the present invention, an electrolytic solution contains LiPF6 as an electrolyte salt, and the concentration of the electrolyte salt in the electrolytic solution is 1.25 mol/kg or greater and 1.45 mol/kg or less.