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1603
results.
Updated on
09/11/2025 [07:15:00]
Results 500 to 525 of 1603
Absstract of: EP4645537A1
A pouch film laminate according to the present invention includes a first base material layer, a second base material layer, a gas barrier layer, and a sealant layer which are sequentially laminated, wherein the moisture content index of the second base layer, which is represented by the following Formula 1, is 17,000 ppm·g/cm3 or less. Moisture content index of second base layer = Moisture content (ppm) per unit weight of pouch film laminate× density (g/cm3) of pouch film laminate × thickness (µm) of pouch film laminate/thickness (µm) of second base layer
Absstract of: EP4645476A1
The present application provides a current collector, comprising a base layer, a first metal layer, and a second metal layer. The first metal layer is disposed on at least one surface of the base layer; the second metal layer is disposed on the surface of the first metal layer facing away from the base layer; the first metal layer comprises elemental iron or an iron alloy; the second metal layer comprises at least one of a metal layer formed by any one of copper, tin, lead, molybdenum, chromium and nickel, an elemental metal stack formed by any two or more of the elements, and an alloy layer formed by any two or more of the elements. Additionally, the present application relates to a corresponding preparation method for the current collector, and a secondary battery and an electric device. The current collector of the present application can enable the secondary battery to have a long service life.
Absstract of: EP4645419A1
The present application provides an electrode sheet, a battery, and an electrical device. The electrode sheet comprises a current collector, an undercoat layer, and an active layer, and the undercoat layer is located between the current collector and the active layer, the undercoat layer comprises a conductive agent, the active layer comprises an active material and a first electrolyte absorption material, and the electrolyte absorption rate of the first electrolyte absorption material is greater than or equal to 110%.
Absstract of: EP4645539A1
The present disclosure provides a top cover assembly (100) and a battery (10). The top cover assembly (100) includes a cover plate (110) and a pole (120). The cover plate (110) includes a first surface (111) and a second surface (112). Afirst through hole (113) is provided on the cover plate (110) and penetrates from the first surface (111) to the second surface (112). The pole (120) passes through the first through hole (113). The pole (120) includes a first connecting part (121) inserted in the first through hole (113). An orthographic projection of the first connecting part (121) in a direction from the second surface (112) toward the first surface (111) forms a first profile. The first profile has a first maximum length L 1 in the first direction (X) and a first maximum width L2 in a second direction (Y), where 2 ≤ L1/L2 ≤ 3.
Absstract of: EP4645558A1
To realize a battery pack in which a busbar case is not required.A battery pack in which a plurality of battery cells are arranged together in a first direction, in which a first spacer or a second spacer is disposed between each pair of adjacent battery cells; the first spacer has a first side that extends in a second direction, a first U-like portion that extends in the first direction is formed in the first side, a first partition wall is formed on the outside of the first U-like portion in the second direction, the second spacer has a second side that extends in the second direction, a second U-like portion that has a U-like cross section and extends in the first direction is formed in the second side; a busbar housing portion is formed between a first partition wall formed in the first spacer and a different first partition wall formed in a different first spacer adjacent to the first spacer in the first direction, and the first U-like portions and the second U-like portions are continuously formed in the first direction to form wire housing portions that extend in the first direction.
Absstract of: EP4645203A1
The battery management program (P1) is configured to cause a processor (1) to implement a function of acquiring SOH information (S) based on battery monitoring data (X) of a battery (2) and a function of calculating the CO<sub>2</sub> emission amount (Ea), which is an environmental load factor related to the battery (2), based on the SOH information (S) as acquired. The battery management system (100) includes a battery management server (13) configured to acquire SOH information (S) based on battery monitoring data (X) of a battery (2), an emission calculation unit (121) configured to calculate CO<sub>2</sub> emission amount (Ea) based on the SOH information (S) acquired by the battery management server (13), and a CO<sub>2</sub> emission information display unit (125) configured to display emission information related to the CO<sub>2</sub> emission amount (Ea) calculated by the emission calculation unit (121).
Absstract of: EP4645564A1
A battery pack 11 is equipped with a battery cell group 800 in which a plurality of battery cells 701 are arranged, and the battery pack 11 includes: a duct 234 provided to extend along the battery cell group 800; and a bottom-surface part 35b of the duct 234 that faces the battery cell group 800 and is combined with the duct 234 to constitute a flow path 780 for guiding a gas discharged from at least one of the plurality of battery cells 800, wherein the duct is pressed against the battery cell group 800 via the bottom-surface part 35b.
Absstract of: EP4645483A1
There is provided a rectangular secondary battery in which the dielectric strength is improved and an insulating protective film and a wound electrode body can be fixed in consideration of productivity.A rectangular secondary battery including a wound electrode body 3 and an insulating protective film 2 that is wound around the wound electrode body 3 or folded along the outer shape of the wound electrode body to cover the wound electrode body, wherein the insulating protective film 2 has at least side circumferential surface parts 51b and 51C that extend in a circumferential direction of side circumferential surfaces of the wound electrode body 3 and cover the wound electrode body 3 and a bottom surface part 52a that covers a bottom surface of the wound electrode body, on the side circumferential surface of the wound electrode body, an end surface overlapping part 51h in which end surface parts on both sides of the insulating protective film 2 overlap each other is formed, and the end surface overlapping part 51h has penetration regions 51f-1 and 51G-1 that reach the side circumferential surface of the wound electrode body, and the periphery of the penetration regions 51f-1 and 51G-1 of the end surface overlapping part and the side circumferential surface of the wound electrode body are bonded and fixed through the penetration regions 51f-1 and 51G-1 with an electrically insulating adhesive tape 20a.
Absstract of: EP4645636A1
The present invention discloses a charging base station, a charger, and a cleaning system and a charging method and a standby method therefor. The charging base station includes a base station body and a charger. The base station body is provided with a placement portion, and the placement portion allows a cleaning device to be connected. The charger is configured to supply power to the cleaning device and has multiple output voltage levels. When the charger is in a standby state, a standby voltage of the charger is less than a preset working voltage of the charger. The charging base station, the charger, and the cleaning system and the charging method and the standby method therefor provided in the present invention can greatly reduce a standby power consumption of the device, and reduce the sparking risk occurring when a cleaning device is charged.
Absstract of: EP4645504A1
A manufacturing method for improving the performance of a secondary battery is realized. The manufacturing method includes: forming a negative electrode containing a negative electrode active material and a first electrolytic solution; forming a positive electrode containing a positive electrode active material and a second electrolytic solution; forming a cell in which a separator is located between the negative electrode and the positive electrode; and performing preliminary charging on the cell. A composition ratio of components contained in the first electrolytic solution and a composition ratio of components contained in the second electrolytic solution are different from each other.
Absstract of: WO2024141774A1
There is disclosed a hybrid composite anode for lithium-ion batteries comprising silicon nanoparticles, multi-walled carbon nanotube (MWCNTs) flakes, and a polymer binder which enables enhanced capacity retention of the hybrid composite anode. A process of fabrication of an anode for a lithium-ion battery is also disclosed, the process comprising the steps of fabricating carbon nanotube (CNT) mats on an anode current collector; dispersing the fabricated CNT mats in a mixture of deionized (DI) water to ethanol using a probe sonicator and magnetic stirrer; and adding silicon nanoparticles, multi-walled carbon nanotube (MWCNTs) flakes, and a polymer binder to the mixture, forming Si-MWCNT nanocomposite (SMC) anodes.
Absstract of: EP4645573A1
An electrical connection assembly, a battery assembly and a vehicle. The electrical connection assembly comprises an electrical connector and an insulating member, wherein the electrical connector is used for connecting a plurality of battery cells; and the insulating member is arranged on the electrical connector and protrudes out of the side of the electrical connector which is away from the battery cells.
Absstract of: EP4645449A1
This application provides a negative electrode material, a secondary battery, and an electronic device. The secondary battery includes a negative electrode plate. The negative electrode plate includes a negative electrode material. The negative electrode material includes a composite material. The composite material includes elemental silicon and a carbon material. A ratio of an intensity of a main peak to an intensity of a secondary peak of a first-cycle delithiation dQ/dV curve of the composite material is 1.15 to 1.65. The composite material in the secondary battery provided in this application satisfies the above characteristics, so that the secondary battery exhibits excellent cycle performance and expansion resistance in addition to a relatively high specific capacity.
Absstract of: EP4645436A1
A negative electrode sheet. The negative electrode sheet comprises a current collector (1), and a silicon-containing layer (2), an intermediate layer (3) and a carbon layer (4) which are stacked in sequence on at least one side of the current collector (1), wherein the intermediate layer comprises a first conductive agent and a first binder.
Absstract of: EP4645500A1
A solid electrolyte, comprising a first solid electrolyte layer and a second solid electrolyte layer. The first solid electrolyte layer comprises a first sulfide solid electrolyte, and the second solid electrolyte layer comprises a phosphide solid electrolyte.
Absstract of: EP4645484A1
The present application discloses a winding device (10), a winding system, and a winding method. The winding device (10) includes a winding needle (101) and a first push rod (102). A first needle body (1011) and a second needle body (1012) form a first hole (1015) at a first end (1013), at least part of the first hole (1015) is a first adjusting hole section (10151), and a radial dimension of the first adjusting hole section (10151) is gradually reduced in a direction close to a second end (1014). The first push rod (102) is inserted into the first hole (1015) and capable of reciprocating in an axial direction of the winding needle (101), and the first push rod (102) has a first adjusting section (1021) matched with the first adjusting hole section (10151). The winding device (10) can adjust a circumference of the winding needle (101) to reduce a tab misalignment amount.
Absstract of: EP4644330A1
The present invention relates to a positive electrode active material precursor with a novel structure and a method of preparing the same, wherein the present invention relates to a positive electrode active material precursor including a composite transition metal hydroxide which includes a core portion including first primary particles; and a shell portion formed on the core portion and including second primary particles, wherein, in a cross section of the positive electrode active material precursor, a ratio (A2/A1) of an average cross-sectional area (A2) of the second primary particles to an average cross-sectional area (A1) of the first primary particles is in a range of 3.00 to 10.0, and a method of preparing the same.
Absstract of: EP4645493A1
A lithium secondary battery includes a positive electrode; a negative electrode; a separator interposed between the positive electrode and the negative electrode; and a non-aqueous electrolyte. The positive electrode includes a positive electrode active material, the positive electrode material includes a perlithium manganese-rich oxide containing 50 mol% or more of Mn based on all metal elements excluding lithium, and having a molar ratio of lithium to transition metal exceeding 1, the non-aqueous electrolyte includes a lithium ion and an organic solvent, the organic solvent includes a first organic solvent and a second organic solvent, the first organic solvent includes ethylene carbonate, and the second organic solvent includes diethyl carbonate and propyl propionate.
Absstract of: EP4645552A1
Disclosed is a battery module including a cell assembly including a plurality of battery cells, a main body frame comprising an inner space, wherein the inner space is configured to accommodate the cell assembly, a busbar frame electrically connected to the cell assembly, and an end plate coupled to one side or another of the main body frame, wherein the main body frame and the end plate are coupled to each other by male-female coupling.
Absstract of: EP4645427A1
Examples of the disclosure include a positive electrode, a rechargeable lithium battery including the positive electrode, and a positive electrode for a rechargeable lithium battery including a current collector, a first active material layer on the current collector. The first active material layer includes a first particle, a second particle, a first binder, and a first conductive material, and a second active material layer on the first active material layer. The second active material layer includes a third particle, a second binder, and a second conductive material. The first particle contains an olivine structured compound, the second particle contains a layered compound, the third particle contains an olivine structured compound, the first active material layer and the second active material layer have a cobalt (Co) content that is less than about 100 ppm, the first particle includes a plurality of first primary particles aggregated together.
Absstract of: EP4645426A1
A positive electrode active material for a rechargeable lithium battery, a positive electrode including the positive electrode active material, and a rechargeable lithium battery including the positive electrode are disclosed. For example, the positive electrode active material includes first particles including a compound of Chemical Formula 1 and second particles including a compound of Chemical Formula 2. The content (e.g., amount) of the first particles is greater than the content (e.g., amount) of the second particles, and the second particles are (e.g., be in) a single particle form.
Absstract of: EP4645437A1
Provided are a negative electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same, and a negative electrode for a rechargeable lithium battery including a negative electrode current collector, and a negative electrode active material layer on the negative electrode current collector, wherein the negative electrode active material layer includes a first active material layer, a second active material layer, and a third active material layer, which are sequentially stacked on the negative electrode current collector, the negative electrode active material layer includes a conductive material, and the second active material layer further includes silicon-containing particles.
Absstract of: EP4644926A1
Disclosed is a battery management apparatus and method for calibrating the state of charge (SOC) of a lithium iron phosphate (LFP) battery. The battery management apparatus according to an embodiment of the present disclosure calculates, when going into calibration mode, an average voltage value of voltage values received from a voltage measuring unit for a predefined time, calculates an average current value of current values received from a current measuring unit for the predefined time, calculates an average internal resistance value of the LFP battery for the predefined time based on the average voltage value and the average current value, determines if the average internal resistance value is equal to or larger than a preset reference resistance value, and when the average internal resistance value is equal to or larger than the reference resistance value, calibrates the current SOC to a preset reference SOC.
Absstract of: EP4645403A1
Disclosed are an electrode winding device, a battery cell including an electrode produced using the same, and a battery pack and a vehicle including the battery cell. An electrode winding device according to the present disclosure includes: a winding member configured to wind an electrode; a rotational shaft coupled to the winding member to rotate: a fastening chuck coupled to the rotational shaft and fastening the winding member; a support member configured to support the rotational shaft; a power source configured to provide power to the rotational shaft; and a releasing member coupled to the winding member and configured to release the winding member.
Nº publicación: EP4645581A1 05/11/2025
Applicant:
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd
Absstract of: EP4645581A1
A battery module according to an embodiment of the present disclosure includes a battery cell stack in which a plurality of battery cells is stacked, a module case for accommodating the battery cell stack, a busbar frame disposed on one side of the battery cell stack, and two insulating covers disposed on both sides of the battery cell stack, wherein one of the two insulating covers includes a pressure pad, the other insulating cover is disposed on the outside of the busbar frame, and the pressure pad of the one insulating cover pressurizes the battery cell stack in a direction of the other insulating cover disposed on the outside of the busbar frame.
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