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1314
results.
Updated on
10/09/2025 [07:16:00]
Results 425 to 450 of 1314
Absstract of: EP4611053A1
A positive electrode sheet and a preparation method therefor, and a battery and an electric device. The positive electrode sheet comprises a positive electrode current collector and a positive electrode active material layer, which is arranged on at least one side surface of the positive electrode current collector and comprises a positive electrode active material, wherein the positive electrode active material comprises a sodium-containing positive electrode active material. The thickness of the positive electrode sheet satisfies Dmax/Dmin being 104.5%-300%. After the positive electrode sheet and a negative electrode sheet are assembled into a battery, the thickness of the positive electrode sheet is Dmax when the battery is at 0% SOC, and the thickness of the positive electrode sheet is Dmin when the battery is at 100% SOC. The negative electrode sheet comprises a negative electrode current collector. When the battery is at 100% SOC, at least one side surface of the negative electrode current collector is provided with a sodium metal layer.
Absstract of: EP4611094A1
Provided in the present application is a secondary battery. The secondary battery comprises: a negative electrode sheet and an electrolyte, wherein the negative electrode sheet comprises a silicon-carbon composite material having a three-dimensional network crosslinked pore structure; and the electrolyte comprises a cyclic carbonate compound represented by formula I. By means of the cooperation of the three-dimensional network crosslinked pore structure of the silicon-carbon composite material and the cyclic carbonate compound of the electrolyte, the volume effect of an active material during the charging and discharging process is inhibited, the direct current resistance and gas output of the battery are reduced, and the cycle capacity retention rate of the battery is improved.
Absstract of: EP4611062A1
The present application provides a secondary battery and an electrical apparatus. The secondary battery comprises: a negative pole piece and an electrolyte, the negative pole piece comprising a silicon-carbon composite material having a three-dimensional-network cross-linked pore structure; and the electrolyte comprising lithium fluorosulfonyl imide. The three-dimensional-network cross-linked pore structure of the silicon-carbon composite material acts in connect with the lithium fluorosulfonyl imide in the electrolyte to enhance the high-temperature cycle performance and the storage performance of the battery.
Absstract of: EP4611112A1
Disclosed is a battery cell evaluation apparatus, and more particularly a battery cell evaluation apparatus including a jig, the jig including: a housing including a cavity; a holder unit received in the cavity, the holder unit including a first connection member and a second connection member each configured to fix an electrode lead of a battery cell; and a first elevation adjustment member configured to adjust the height of the second connection member, wherein the first elevation adjustment member is configured to measure a pressing force of the second connection member when the second connection member and the first connection member are in tight contact or the second connection member and the electrode lead are in tight contact.
Absstract of: EP4611122A1
Provided are a liquid cooling device, a communicating assembly, and a battery pack. A projection is on the sidewall of a cooling channel. When the outer side of a liquid cooling plate is squeezed, the projection between the sidewalls of the cooling channel supports the sidewalls, thereby preventing the remaining portion of the cooling channel from being clogged.
Absstract of: EP4610631A1
An object overlap detection apparatus includes one or more photographing units configured to photograph objects from multiple angles. A determining unit is configured to determine whether there are overlapping objects by analyzing an image obtained by photographing the objects in a vertical direction using the one or more photographing units. The determining unit is also configured to determine whether there are overlapping objects by analyzing an image obtained by photographing a side of using the one or more photographing units. A controller is configured to receive information indicating whether the objects overlap from the determination units and to control one or more of an alarm signal, an operation of the photographing units, and transport of the objects.
Absstract of: EP4611392A1
The present disclosure relates to an earphone (100), including: an ear hook (2) and a core module (1) connected to the ear hook (2), the core module (1) including an outer shell (11), a decorative cover (12), and a touch module (18), the outer shell (11) including an outer surface (OS1) away from an ear of a user when the earphone (100) is in a wearing state, the decorative cover (12) being disposed on the outer surface (OS1) of the outer shell (11) and configured to form a touch positioning region (120) for the user to perform touch positioning; a positioning protrusion (121) being disposed on the outer shell (11) and/or the decorative cover (12), the positioning protrusion (121) being located in the touch positioning region (120) and protruding from an outer surface (OS2) of the decorative cover (12) away from the outer shell (11); the touch module (18) being disposed on the outer shell (11) and including a touch detection region (182) that at least partially overlaps with the touch positioning region (120).
Absstract of: EP4611061A1
The present application provides a secondary battery (1). The secondary battery (1) comprises: a negative electrode sheet and an electrolyte, wherein the negative electrode sheet comprises a silicon-carbon composite material having a three-dimensional network crosslinked pore structure; and the electrolyte comprises dimethyl carbonate. By means of the cooperation of the three-dimensional network crosslinked pore structure of the silicon-carbon composite material and dimethyl carbonate in the electrolyte, the volume effect of an active material during a charging and discharging process is inhibited, the interface stability is improved, the internal resistance of the battery is reduced, and the cycle capacity retention rate and the charging and discharging performance at a high rate of the battery are improved.
Absstract of: EP4611057A1
The present application discloses a lithium secondary battery and an electric device. The lithium secondary battery comprises a positive electrode sheet and a negative electrode sheet; a positive electrode active material layer comprises a positive electrode active material Li1+aM1bFe1-cAcP1-dEdO4 having a mass ratio of not less than 85 wt%; a negative electrode active material layer comprises graphite having a mass ratio of not less than 85 wt%; the surface density of the positive electrode active material layer located on a single side of the positive electrode sheet is CWc, with a unit of g/1540.25 mm2, and the reversible lithium capacity thereof is Dc, with a unit of mAh/1540.25 mm2; the reversible lithium capacity of the negative electrode active material layer on the side of the negative electrode sheet facing the positive electrode sheet is Da, with a unit of mAh/1540.25 mm2; the initial lithium-intercalation capacity of the negative electrode active material layer on the side of the negative electrode sheet facing away from the positive electrode sheet is Ca, with a unit of mAh/1540.25 mm2; the conductivity of an electrolyte in the lithium secondary battery at 25°C is ρ, with a unit of S/cm; the lithium secondary battery satisfies: Formula 1: 1.0337+0.37 × CWc - 7.79 × ρ ≤ K1 ≤ 1.07+0.93 × CWc - 2.9 × ρ ; and/or, Formula 2: 1.1485+0.43 × CWC - 9.2 × ρ = K2 ≤ 1.13+1.069×CWc - 1.7 × ρ ; wherein, (a).
Absstract of: EP4611101A1
The present application provides an electrolyte, a secondary battery and an electrical apparatus. The electrolyte contains a sodium salt and metal ions having ionic radii greater than that of a sodium ion. The electrolyte can effectively inhibit sodium dendrites, helping to improve the cycle performance and the high-temperature storage performance of batteries.
Absstract of: EP4611391A1
The present disclosure relates to an earphone (100), including: a shell assembly (10), configured to form an accommodation space (101) and extending along a first direction (X) and a second direction (Y), the second direction (Y) is orthogonal to the first direction (X); an ear hook (2) connected to the shell assembly (10), wherein when the earphone (100) is in a wearing state, at least a portion of the ear hook (2) is located at a rear side of an ear of a user, and the shell assembly (10) is stacked on a front side of the ear of the user along the second direction (Y); and a loudspeaker (13) and a battery (14) spaced apart from each other along the first direction (X) and accommodated in the accommodation space (101), wherein: the loudspeaker (13) has a first axis (ZX1), the battery (14) has a second axis (ZX2), each of the first axis (ZX1) and the second axis (ZX2) has a positive direction pointing to the ear of the user when the earphone is in the wearing state, and on a reference plane defined by the first direction (X) and the second direction (y), projections of the first axis (ZX1) and the second axis (ZX2) are intersected.
Absstract of: EP4611390A1
The present disclosure discloses an earphone (100) comprising a core module (1) and an ear hook (2). The ear hook (2) is provided in a curved shape and includes a first end (201) and a second end (202) away from the first end (201), the first end (201) being connected to the core module (1). The ear hook (2) is configured to hang on an ear of a user, and the ear hook (2) includes an elastic frame (21) and a covering member (22), the elastic frame (21) extending along an extension direction of the ear hook (2), the covering member (22) covering around the elastic frame (21), and the covering member (22) being provided with a buffer cavity (220).
Absstract of: EP4611156A1
The present application provides a composite separator, a secondary battery, and an electrical apparatus. The composite separator comprises a separator substrate and a polymer coating located on one side of the separator substrate, the sodium ionic conductivity of the composite separator being 0.3 mS/cm-1 mS/cm. The polymer coating helps to reduce the contact between metal deposited on current collectors and electrolytes, thereby reducing side reactions between the metal and the electrolytes, and improving the cycle performance and the storage performance of batteries.
Absstract of: EP4611130A1
This application discloses a battery cell, a battery, and a power-consuming apparatus. The battery cell includes a housing, a first insulating film, and an adhesive layer. The housing includes a first part and a second part, the first part is connected to the second part, and a surface energy of the second part is greater than a surface energy of the first part. The first insulating film covers at least one part of the housing. The adhesive layer is disposed between the second part and the first insulating film and configured to connect the first insulating film to the second part. Technical solutions provided in this application can improve reliability of the battery.
Absstract of: EP4611064A1
Embodiments of this application relate to a positive electrode active material, a positive electrode plate, a secondary battery, and an electric device. The positive electrode active material includes a first active material and a second active material. The first active material includes a compound having a molecular formula of Li<sub>1+x</sub>Fe<sub>1-y</sub>A<sub>y</sub>P<sub>1-z</sub>Q<sub>z</sub>O<sub>4</sub> and a modified compound thereof. The second active material includes a compound having a molecular formula of Li<sub>h</sub>Ni<sub>j</sub>Co<sub>k</sub>M1<sub>d</sub>M2<sub>e</sub>O<sub>f</sub>R<sub>g</sub> and a modified compound thereof. The embodiments of this application can improve capacity utilization and cycle performance of a secondary battery.
Absstract of: EP4611067A1
The present invention relates to a lithium silicon oxide in which gas generation is suppressed when an aqueous slurry is applied, a negative electrode comprising same, and a lithium secondary battery comprising the negative electrode. In a <sup>29</sup>Si NMR spectrum obtained through <sup>29</sup>Si solid state magic angle spinning (MAS) NMR measuring, the lithium silicon oxide has, within a range of -88 to -99 ppm, a first peak having a width of 0.2 to 2.0 ppm and a second peak having a width of 3 to 10 ppm, wherein the ratio of the integral of the first peak to the integral of the second peak (first peak/second peak) is greater than 0.22 and less than or equal to 0.31.
Absstract of: EP4611125A1
Dargestellt und beschrieben ist ein Zellträger (2) für mindestens eine Zelle (3). Die mindestens eine Zelle (3) weist ein Zellgehäuse (4) auf. Der Zellträger (2) weist für die mindestens eine Zelle (3) eine Zellaufnahme (11) auf. Der Zellträger (2) ist aus einem Polyurethanschaum hergestellt, der ein Isocyanat und ein Polyol aufweist.Die Erfindung löst die Aufgabe, eine im Zellträger (2) angeordnete Zelle (3), welche thermisch durchgeht, thermisch und mechanisch ausreichend von ihrer Umgebung zu isolieren, sodass die Umgebung keinen Schaden nimmt.Die Aufgabe ist dadurch gelöst, dass der Polyurethanschaum ein Gemisch mit dem Isocyanat und einem ersten Teilgemisch ist, dass das erste Teilgemisch ein Gemisch mit dem Polyol und einem zweiten Teilgemisch ist und dass das zweite Teilgemisch ein Ammoniumsulfat aufweist.
Absstract of: EP4611139A1
A battery module includes a cell assembly including a plurality of battery cells, and a module case accommodating the cell assembly. The module case includes an accommodation portion including a main plate supporting the cell assembly and a sidewall extending from the main plate, a module cover including an upper plate covering the cell assembly, the upper plate having a first surface oriented in a first direction, a sidewall cover extending from the upper plate, the sidewall cover covering a portion of the sidewall, the sidewall cover having a second surface oriented in a second direction opposite to the first direction, and a guide groove formed in the second surface, and a first bonding portion connecting the second surface of the sidewall cover and the sidewall to each other.
Absstract of: EP4611100A1
The present application relates to the technical field of lithium-ion batteries, in particular to a lithium-ion battery electrolyte solution, a secondary battery, a battery module, a battery pack, and an electrical device. The lithium-ion battery electrolyte solution includes a lithium salt, an organic solvent and an additive. The additive includes a compound represented by Formula I:where R<sub>1</sub> to R<sub>4</sub> are each independently selected from a hydrogen atom, a halogen atom, a nitrate ester group, a nitrite ester group, a substituted or unsubstituted C1 to C12 alkyl, and a substituted or unsubstituted C1 to C12 alkoxy, provided that at least one of R<sub>1</sub> to R<sub>4</sub> is a nitrate ester group. The present application solves the problems of poor solubility of existing additives and low conductivity of a formed solid electrolyte interphase (SEI).
Absstract of: EP4611104A1
This application provides a non-aqueous electrolyte. The non-aqueous electrolyte includes: a first sodium salt, where the first sodium salt includes at least one of sodium hexafluorophosphate, sodium hexafluoroarsenate, sodium perchlorate, and sodium trifluoroacetate; and a second sodium salt, where the second sodium salt includes one, two, or more of a sodium salt having sulfonate, a sodium salt having oxalate, a sodium salt having phosphate, and a sodium salt having borate. The non-aqueous electrolyte provided in this application is applicable to sodium-ion batteries, can improve the room-temperature and high-temperature cycling performance and capacity retention rate after high-temperature storage of the sodium-ion batteries, and can significantly reduce the battery volume swelling rate after high-temperature storage of the sodium-ion batteries.
Absstract of: EP4611111A1
An experimental jig according to an embodiment of the present invention may include a first plate, a second plate that is disposed to be spaced a constant distance from the first plate so that a secondary battery is disposed between the first plate and the second plate, a coupling part that passes through the first plate and the second plate to couple the first plate and the second to each other, and a side plate that is disposed between the first plate and the second plate in a state, in which the coupling part passes through the side plate, to surround a side surface of the secondary battery.
Absstract of: EP4611099A1
This application relates to a lithium-ion battery, including a positive electrode and an electrolyte. A positive electrode active material included in the positive electrode includes a doping element. The doping element includes at least one selected from W, Cu, Fe, V, Cr, Ti, Zr, Zn, Al, In, Ta, Y, La, Sr, Ga, Sc, Gd, Sm, Ca, Ce, Nb, Mg, B, and Mo, and a percentage of the doping element satisfies 0.01%≤W1%≤0.5%. The electrolyte includes an oligomer according to formula (I), and a percentage of the oligomer satisfies 0.1%≤W2≤10%. This application further relates to an electric apparatus including such lithium-ion battery.
Absstract of: EP4611164A1
A battery cell includes a cell case including a sidewall and a top plate having a through-hole formed therein; an electrode terminal coupled to the through-hole and having a coupling groove formed in a bottom portion; an electrode assembly; and a first current collector electrically connecting the electrode terminal to the electrode assembly, wherein the first current collector includes a connection terminal having a protrusion inserted and coupled to the coupling groove, wherein the protrusion is coupled to the electrode terminal by welding performed on an outer side of the cell case, and wherein, in a welded region where the protrusion and the electrode terminal are welded, a thickness of the connection terminal has a value equal to or greater than that of a thickness of the electrode terminal.
Absstract of: EP4611096A1
An electrolyte for a lithium secondary battery according to exemplary embodiments may include an additive including a compound having a specific structure, an organic solvent and a lithium salt. Accordingly, a lithium secondary battery including the electrolyte for a lithium secondary battery may have improved flame retardant characteristics and lifespan characteristics while suppressing a thickness increase in a high temperature environment.
Nº publicación: EP4611142A1 03/09/2025
Applicant:
SAMSUNG SDI CO LTD [KR]
Samsung SDI Co., Ltd
Absstract of: EP4611142A1
A battery pack (10) includes a housing (100) and battery modules (30, 300) in the housing. Each of the battery modules includes battery cells, a case (310) accommodating the battery cells, a first fire prevention sheet (360) on the case, and a first spacer (370) on the case and configured to separate the first fire prevention sheet from an upper surface of the case.
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