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955
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Updated on
19/07/2025 [07:29:00]
Results 400 to 425 of 955
Absstract of: EP4586333A1
A cathode for a lithium secondary battery according to embodiments of the present disclosure includes a cathode current collector, a first cathode active material layer which is disposed on at least one surface of the cathode current collector, and includes a first cathode active material having a single particle form and a point-like conductive material, and a second cathode active material layer which is disposed on the first cathode active material layer, and includes a second cathode active material having a single particle form and a linear conductive material, wherein the second cathode active material has an average particle diameter (D50) of 3 µm to 4 µm.
Absstract of: EP4586334A1
An anode for a secondary battery according to exemplary embodiments of the present disclosure includes: an anode current collector; a first anode active material layer which is disposed on at least one surface of the anode current collector and includes natural graphite and artificial graphite; and a second anode active material layer which is disposed on the first anode active material layer and includes a silicon-based active material, a graphite-based active material and carbon nanotubes. Accordingly, a lithium secondary battery having improved rapid charge/discharge cycle lifespan characteristics may be implemented.
Absstract of: EP4586366A1
A battery pack includes battery cells arranged in an array to form a battery module layer. Multiple layers are vertically stacked with thermal management devices, such as active heat exchangers in the form of battery cold plates (120), above and below each layer to form a multi-layer battery stack that may be held in compression. The battery cold plates include liquid heat exchange medium passageways (124), the characteristics of which influence the heating and cooling capabilities of the cold plates. The battery cold plates, including at least arrangement and features of the passageways across the battery cold plate, are optimized to achieve desirable pressure drop and temperature distribution across the cold plates, among other benefits.
Absstract of: EP4586365A1
Die vorliegende Erfindung betrifft ein Trennverfahren zum Lösen einer stoffschlüssigen Verbindung zwischen einem Zellverbinder und einem Kontaktbereich einer Batteriezelle, so dass die Batteriezelle ohne weiterer Nacharbeitungsschritte erneut stoffschlüssig verbindbar ist, wobei auf die stoffschlüssige Verbindung eine Scherbelastung und/oder eine Schälbelastung und/oder eine Torsionsbelastung wirkt.
Absstract of: EP4586364A2
Die Erfindung betrifft ein Akkupack (1) zum lösbaren Verbinden mit einem Elektrogerät mit einem Akkupackgehäuse (2), das eine Gehäuseaußenseite (3) aufweist, mit zumindest einem im Akkupackgehäuse (2) angeordneten Akkumulator (23), mit einer im Akkupackgehäuse (2) angeordneten Steuerungseinheit (24) und mit einer an der Gehäuseaußenseite (3) ausgebildeten Geräteschnittstelle (4) zum lösbaren Verbinden des Akkupacks (1) mit dem Elektrogerät. Erfindungsgemäß umfasst das Akkupackgehäuse (2) ein erstes Gehäuseteil (5) und ein zweites Gehäuseteil (6). Das erste Gehäuseteil (5) umfasst eine erste Innenschnittstelle (7) und das zweite Gehäuseteil (6) eine mit der ersten Innenschnittstelle (7) korrespondierende zweite Innenschnittstelle (8), über die das erste Gehäuseteil (5) und das zweite Gehäuseteil (6) mechanisch und elektrisch miteinander verbindbar sind.
Absstract of: EP4586456A1
A battery management device, including a first pack terminal (P+) and a second pack terminal (P-), a first battery terminal (B+) and a second battery terminal (B-) to which a battery (110) including a plurality of battery cells is coupled, a charge control switch (C-FET) and a discharge control switch (D-FET) coupled in series between the first pack terminal (P+) and the first battery terminal (B+), a current sensor (Rs) coupled between the first pack terminal (P+) and the first battery terminal (B+) or between the second pack terminal (P-) and the second battery terminal (B-), and a battery controller (120) configured to control the discharge control switch (D-FET), based on a battery current (Ib) detected through the current sensor (Rs), wherein the battery controller (120) is configured to repeat a process of, when detecting a generation of an overdischarge current, temporarily turning off the discharge control switch (D-FET) for a preset delay time and then turning on the discharge control switch (D-FET) back.
Absstract of: EP4586352A2
The present application relates to a roll changing apparatus and an adhesive tape sticking device. The roll changing roll apparatus comprises an unwinding material assembly, a roll changing assembly, a cutting assembly, and an end pressing assembly. Automatic roll changing for a working material tape and a standby material tape can be achieved, the personnel configuration is reduced, and therefore the labor is reduced.
Absstract of: EP4585381A2
A system for tracking a position of an electrode of a battery cell is disclosed which comprises: a controller configured to acquire coordinate information of the electrode and a cell identification (ID) of the unit electrode; a calculator configured to calculate coordinates of the cell ID, the coordinates of the cell ID corresponding to one or more positions of the unit electrode; a roll map generator configured to generate a roll map based on the coordinate information of the electrode obtained from the controller, the roll map including coordinates of the roll map based on a dimension in a length direction of the electrode; and a mapping part configured to compare the coordinates of the roll map with the coordinates of the cell ID to derive the one or more position of the unit electrode during the electrode manufacturing process from which the unit electrode originates.
Absstract of: EP4586388A2
A battery cell assembly, comprises a first electrode;a second electrode; and a separator between the first electrode and the second electrode; wherein: the separator comprises a first layer comprising metal oxide, metal hydroxide, or metal oxyhydroxide particles, the first layer being directly deposited on the first electrode; a thickness of the separator ranges between about 0.5 µm to about 10 µm; the metal oxide, the metal hydroxide, or the metal oxyhydroxide particles comprise a (1) a first set of the metal oxide, the metal hydroxide, or the metal oxyhydroxide particles with a first aspect ratio distribution, and (2) a second set of the metal oxide, the metal hydroxide, or the metal oxyhydroxide particles with a second aspect ratio distribution; the metal oxide, the metal hydroxide, or the metal oxyhydroxide particles of the first set are fiber-shaped and are characterized by diameters in a diameter range from around 3 nm to around 2 µm and aspect ratios in an aspect ratio range from around 4 to around 1,000,000; and the metal oxide, the metal hydroxide, or the metal oxyhydroxide particles of the second set are flakes.
Absstract of: EP4586328A2
The present specification provides a secondary battery, which comprises a cathode, an anode, a separator, and an electrolyte, the anode containing a silicon-based active material and a carbon-based active material, the cathode containing: a lithium nickel-based active material in a single particle form; and at least one of LCO (LiCoO2), LMO (LiMn2O4), and LFP (LiFePO4), in a secondary particle form, wherein the lithium nickel-based active material in a single particle form contains 55 mol% or more of nickel in 100 mol% of metals excluding lithium.
Absstract of: EP4586367A2
Provided is a battery pack including a plurality of battery modules; a base plate on which the plurality of battery modules are located; a front frame including a front cover portion covering a front of the base plate and a front plate portion extending rearward from one side of the front cover portion, wherein the front cover portion and the front plate portion are integrally formed; a rear frame having a rear cover portion covering a rear of the base plate, and a rear plate portion extending forward from one side of the rear cover portion, wherein the rear cover portion and the rear plate portion are integrally formed; a first side frame covering a left side of the base plate; and a second side frame covering a right side of the base plate.
Absstract of: EP4586594A2
An electronic device according to an embodiment of the present disclosure may include a housing, a display disposed on the housing, a printed circuit board disposed in an interior of the housing, a battery including a first area and a second area having a thickness that is less than a thickness of the first area, and a thermal diffusion member disposed between the printed circuit board and the display and between the battery and the display, wherein the thermal diffusion member may include a first diffusion area and a second diffusion area extending to be overlapped with at least a portion of the second area.
Absstract of: EP4586336A2
This negative electrode is provided with a negative electrode current collector, and a negative electrode mixture layer formed on the negative electrode current collector, wherein: the negative electrode mixture layer comprises a first layer arranged on the negative electrode current collector, and a second layer arranged on the first layer; the second layer includes graphite particles A having a particle internal porosity of at most 10%: the first layer includes graphite particles B having a particle internal porosity of more than 10%; and the second layer has a water contact angle of at most 50°.
Absstract of: EP4585567A2
The present invention provides a positive electrode active material for a secondary battery which includes a nickel-based lithium composite transition metal oxide including nickel (Ni), wherein the lithium composite transition metal oxide satisfies Equation 1 and Equation 2 below. 80nm≤crystallitesizeFWHM≤150nmΔsizecrystallitesizeIB−crystallitesizeFWHM≤20 wherein, in Equation 1 and Equation 2, crystallite sizeFWHM is a crystallite size obtained by calculating from X-ray diffraction (XRD) data using a full width at half maximum (FWHM) method, and crystallite sizeIB is a crystallite size obtained by calculating from XRD data using an integral breadth (IB) method.
Absstract of: EP4586395A2
An end cover assembly, an energy-storage apparatus, and an electricity-consumption device are provided in the present disclosure. The end cover assembly includes an end cover, an insulating member, a positive pole, a negative pole, a first connecting member, and a second connecting member. The insulating member and the end cover are stacked in a first direction. The insulating member includes a first separate member, a second separate member, a third separate member, and a fourth separate member. The first separate member is spaced apart from the second separate member in a second direction. In the second direction, the third separate member and the fourth separate member each are between the first separate member and the second separate member. The third separate member, the first separate member, and the second separate member cooperatively define a first accommodating space. The fourth separate member, the first separate member, and the second separate member cooperatively define a second accommodating space. The positive pole penetrates through the third separate member and the end cover. The negative pole penetrates through the fourth separate member and the end cover. The first connecting member is accommodated in the first accommodating space and connected to the positive pole. The second connecting member is accommodated in the second accommodating space and connected to the negative pole.
Absstract of: GB2637261A
An electrode precursor composition and electrode for an alkali metal ion secondary cell include a polymer-solvent gel matrix phase 2 and a dispersed phase comprising an electrochemically active material 1a, 1b. The active material has a multimodal particle size distribution having a D150/D250 in the range 2 to 15, wherein D150 is the volumetric median particle size of a first particle mode 1a within the distribution and D250 is the volumetric median particle size of a second particle mode 1b within the distribution, which is most preferably bimodal. The electrode precursor composition can be processed into an electrode for an alkali metal ion secondary cell, e.g., a lithium-ion secondary cell. The electrode may be provided as a film, e.g., by hot rolling or extrusion, on a current collector 4. The dispersed phase may also comprise a conductive material 3, e.g., conductive carbon black or graphite. The polymer-solvent gel matrix phase preferably comprises a gelling polymer and a liquid electrolyte, which may comprise a solvent with one or more cyclic or linear carbonate compounds. The electrode is preferably the cathode in the secondary cell, with the active material comprising a lithium transition metal oxide.
Absstract of: EP4586353A2
A production method for a sulfide solid electrolyte having an argyrodite-type crystal structure, wherein the method comprises:a step of pulverizing and mixing raw materials by a pulverizer to prepare an intermediate containing a glass component, wherein the raw materials comprise two or more compounds containing lithium, phosphorus, sulfur and/or chlorine, and/or elementary substances thereof, and a step of heat-treating the intermediate at 360 to 500°C.
Absstract of: EP4586359A1
One aspect of the disclosure relates to an all-solid-state battery and a method of manufacturing the same. More specifically, the all-solid-state battery according to the disclosure is shaped so that the positive electrode active material layer is surrounded by the positive electrode current collector and the solid electrolyte layer, so that stretching of the positive electrode active material layer during the pressurization process is prevented, and structural stability of the battery may be secured.
Absstract of: EP4586337A1
The present disclosure relates to a positive electrode active material for an all-solid-state battery, a positive electrode, and an all-solid-state battery comprising same. More specifically, the positive electrode active material according to the present disclosure has a particle layer coated with lithium titanium oxide particles on its surface, wherein the particle layer prevents side reactions between the positive electrode active material and the sulfide-based solid electrolyte particles in the positive electrode, thereby enabling the all-solid-state battery to be stably charged and discharged.
Absstract of: EP4586372A1
Embodiments of this application provide a battery cell, a battery, an electric device, and an energy storage apparatus. The battery cell includes a housing. The housing includes a shell and an end cover, where the shell is provided with an opening, the shell includes a first wall, the first wall includes a first opening portion and a first body sequentially distributed along a first direction, the first direction is parallel to a thickness direction of the end cover, the first body is farther away from the opening than the first opening portion, a thickness of the first opening portion is greater than a thickness of the first body, and the end cover is connected to the first wall and closes the opening. A largest thickness of the first opening portion is denoted as t1, the thickness of the first body is denoted as t2, and a dimension of the first wall in a second direction is denoted as a, satisfying 120≤a/(t1-t2)≤6000, where the second direction, a thickness direction of the first wall, and the first direction are perpendicular to each other. The technical solutions of the embodiments of this application can improve the reliability of the battery.
Absstract of: EP4586343A1
The present invention relates to a binder for a positive electrode in an all-solid-state battery, a composite positive electrode comprising the same, and an all-solid-state battery.
Absstract of: EP4586391A1
This application provides a battery cell (30), a battery (10), and an electric apparatus. The battery cell (30) includes: an electrode assembly (32), including a body portion (321) and a first tab (322). A first size L1 of the body portion (321) in a length direction thereof is greater than a second size L2 of the body portion (321) in a width direction thereof. The first tab (322) is located on at least one end of the body portion (321) in the width direction. The first tab (322) has a third size L3 in the length direction. The first size L1, the second size L2, and the third size L3 satisfy 0.5L2≤L3≤L1. The battery cell (30) according to an embodiment of this application is intended to resolve a technical problem of severe heat generation by a tab.
Absstract of: EP4586386A1
A pack case includes a pack housing, and a lid covering an open top surface of the pack housing, wherein the fastener fixing the lid to the pack housing includes a venting mechanism configured to release pressure within the pack case in excess of a predetermined value to outside of the pack case.
Absstract of: EP4585400A1
The present invention relates to an apparatus for shaping a pouch-shaped battery case including a punch configured to press a laminate sheet to form a cup portion of the pouch-shaped battery case, a die configured to allow the laminate sheet to be disposed thereabove, the die including a recess configured to allow the punch to be inserted thereinto, and a stripper above the die, the stripper being configured to fix the laminate sheet, the stripper having a through-hole configured such that the punch moves through the through-hole, wherein the die includes an upper end portion and a lower end portion having different heights, the inside of the die includes the upper end portion in the form of a quadrangular frame in plan, and the outside of the die includes the lower end portion, a pouch-shaped battery case manufactured using the same, and a method of shaping a cup portion of a pouch-shaped battery case using the apparatus for shaping a pouch-shaped battery case.
Nº publicación: EP4584828A1 16/07/2025
Applicant:
FRAUNHOFER GES FORSCHUNG [DE]
Fraunhofer-Gesellschaft zur F\u00F6rderung der angewandten Forschung e.V
Absstract of: WO2024052076A1
Disclosed are a method for producing an electrode for a galvanic cell, an electrode for a galvanic cell, a galvanic cell, and uses of the galvanic cell. The method comprises: applying a separator membrane to a planar electrode such that an intermediate space is formed between the planar electrode and the separator membrane; subsequently applying a liquid comprising a particular material to the separator membrane, wherein the liquid comprising material penetrates, by way of capillary forces, at least into the pores of the separator membrane, into the intermediate space between the planar electrode and the separator membrane and into pores of the planar electrode, wherein the liquid is subsequently evaporated. The method makes it easily and inexpensively possible to provide an electrode which exhibits a high energy density at the cell level and high chemical, electrochemical and mechanical stability, and which thus exhibits high cycle stability and allows high operating currents.
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