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1111
results.
Updated on
02/09/2024 [07:41:00]
Results 450 to 475 of 1111
Absstract of: EP4421478A1
System (100, 200), method, and computer program product for detecting thermal runaway in a battery cell (208) is provided. The system (100, 200) includes a light source (114, 202) configured to emit light (112, 204, 206) across a spectrum of wavelengths toward a sensing fibre (104a-104d, 400) having a first end (102a-102d, 406) and a second end (418). The sensing fibre (104a-104d, 400) may be positioned to receive the light (112, 206) emitted by the light source (114, 202) at the first end (102a-102d). The sensing fiber (104a-104d) may further contain a filtering mechanism (406) configured to reflect a portion of the spectrum (408) of wavelengths of the light. In addition, the sensing fibre (104a-104d, 400) may be optically coupled to a photodiode (106a-106d) at the second end (418), such that a portion (412) the light is reflected as the light travels through the sensing fibre (104a-104d, 400). The gas (210) may be detected based at least in part on an intensity of the light received at the photodiode (106a-106d) indicating the onset of thermal runaway.
Absstract of: EP4421975A1
Provided in the embodiments of the present application are a battery cell, a battery, and an electric device. The battery cell comprises a housing, an electrode assembly, and a separation member. The housing is provided with an electrode lead-out member. The electrode assembly is accommodated in the housing. The electrode assembly comprises a main body portion and a tab led out from an end surface of the main body portion. At least a portion of the separation member is disposed between the electrode lead-out member and the end surface of the main body portion. The separation member is provided with a channel, and the tab passes through the channel to be electrically connected to the electrode lead-out member. The separation member enables at least a portion of the tab passing through the channel to be insulated and isolated from the end surface of the main body portion, such that when the battery cell is subjected to an external impact, the risk that the tab is inserted into the main body portion is reduced, thereby reducing short circuit risks, and improving the safety.
Absstract of: EP4421976A1
The secondary battery comprises an electrode assembly including a lead tab, a case accommodating the electrode assembly and an electrolyte solution, a cap assembly electrically connected to the lead tab, and coupled to the case to seal the case, and an insulating plate between the electrode assembly and the cap assembly in the case, defining a tab opening for drawing out the lead tab, and including thin film portions respectively defining cutouts for passage of electrolyte solution or gas.
Absstract of: EP4420917A1
At least one inverter (52) is heated by causing an inverter heat generation control unit to pass a predetermined current through the inverter for a predetermined time, and heating of the at least one inverter causes a high-voltage battery (54) (storage battery) to warm up via a cooling circuit. Accordingly, control for warmup of the high-voltage battery (storage battery) is simply performed by passing the predetermined current through the inverter for a predetermined time. This inverter heat generation control can also be applied to a vehicle not including a step-up converter.
Absstract of: EP4421892A1
A method for forming an electrode for electrochemical cells comprises arranging an electrode sheet (11) having a thickness, a length (L) and a height (H), wherein the length (L) is measured along a longitudinal direction, the height (H) is measured along a transverse direction and the thickness is measured along a direction perpendicular to the longitudinal direction and the transverse direction, the electrode sheet (11) having a longitudinal free edge (12a); cutting a plurality of tab notches (19) on the electrode sheet (11) in a first portion (15) of the electrode sheet (11) extending transversely from the free edge (12a), wherein each tab notch (11) extends from a transversely outer end (19b) to a transversely inner end (19a); cutting a plurality of auxiliary notches (20) on the electrode sheet (11) in the first portion (15) of the electrode sheet (11), wherein each auxiliary notch (20) extends in a longitudinal direction and contacts a single tab notch (19) between the transversely outer end (19b) and the transversely inner end (19a) of the tab notch (19).
Absstract of: GB2627691A
The invention provides a processing hub for an energy capture and utilisation system. The processing hub is arranged at a processing location and comprises a waste material processing module operable to generate biogas from input waste material at the processing location. The hub comprises an electric power generator module operable to generate electric power from biogas fuel at the processing location, and at least one electric power storage unit comprising one or more battery cells chargeable by the electric power generator module. An electric vehicle charging module is operable to charge an electric vehicle from electric power generated from the electric power generator module.
Absstract of: EP4421973A2
A battery pack has a housing, a core box, a stack of pouch cells, an end plate, battery pack terminals, and a circuit board. The core box is disposed in the housing and has a support surface. The stack of pouch cells are supported by the support surface. Each pouch cell has cell tabs that extend from a common side of the pouch cell. The end plate has slots, and the cell tabs extend through the slots. The battery pack terminals are electrically connected to the stack of pouch cells and can be electrically connected to an electrical device. The circuit board is coupled to the core box opposite the support surface. The circuit board is electrically connected to the stack of pouch cells and the battery pack terminals. The core box, the end plate, and the circuit board cooperate to enclose the stack of pouch cells.
Absstract of: EP4421891A1
A method for forming an electrode for electrochemical cells comprises arranging an electrode sheet (11) having a thickness, a length (L) and a height (H), wherein the length (L) is measured along a longitudinal direction, the height (H) is measured along a transverse direction and the thickness is measured along a direction perpendicular to the longitudinal direction and the transverse direction, said electrode sheet (11) having a longitudinal free edge (12a); cutting a plurality of tabs (17) on the electrode sheet (11) in a first portion (15) of the electrode sheet extending transversely from the free edge (12a); reducing the thickness of the electrode sheet (11) along a longitudinal track (20) contained in the first portion (15) of the electrode sheet (11).
Absstract of: EP4421953A1
Disclosed are a secondary battery (100) and an electrical device including the secondary battery (100). The secondary battery (100) includes: a housing (110), an electrode assembly (120), an electrode pillar (130) and a current collecting portion (140). The electrode assembly (120) is disposed in the housing (110) in a sealed manner; the electrode pillar (130) penetrates through the housing (110) in a sealed and insulating manner, and is disposed with a thinned region (131) with a thickness of T1; the current collecting portion (140) is disposed in the housing (110) and electrically connected with the electrode of the electrode assembly (120); a welding portion (141) with a thickness of T2 is disposed on the current collecting portion (140) and T2 is greater than 0.3T1; the thinned region (131) is in conductive contact with the welding portion (141) and is fixed through welding.
Absstract of: EP4421972A2
Embodiments of the present invention provide a housing assembly of button cell, a button cell and an electronic product. The housing assembly of button cell includes: a housing and a conductive part, the housing having a holding cavity that is capable of holding a cell of the button cell, the cell having a first tab and a second tab, the housing being provided with a through hole, the conductive part being positioned at and blocking the through hole, and the conductive part and the through hole being sealed and insulated; where, the number of the conductive part is one or two, and when the number of the conductive part is two, the housing is provided with two through holes, where the conductive parts correspond to the through holes one by one. It is beneficial to improving sealability of the housing assembly of button cell.
Absstract of: EP4421974A2
Provided herein is a battery, comprising: a first electrode (12, 14); a first current collector (4) for transferring electrons; a second electrode (12, 14) having an opposite polarity of the first electrode; a separator (2) interposed between the first electrode and the second electrode, wherein the separator is configured to prevent an internal discharge between the first electrode and the second electrode, wherein the internal discharge occurs upon a failure of the separator, and wherein the internal discharge activates a temperature trigger and/or a voltage trigger; and a current interrupter (8) as defined herein comprising a gas generating component for transitioning the current interrupter from an engaged to an unengaged configuration upon activation of at least the temperature trigger and/or the voltage trigger.
Absstract of: EP4421589A2
There is provided an electronic device (10), comprising a foldable housing configured to fold along an axis, a flexible display (14) having first and second display regions (126, 129) separated by a bend region (110) that overlaps the axis. The flexible display (14) is operable in a closed configuration (125) in which the first and second display regions (126, 129) face each other and an open configuration (123) in which the first and second display regions (126, 129) are oriented at a non-zero angle with respect to one another. The electronic device (10) also comprises a hinge (144) aligned with the axis and configured to hold the flexible display (14) in the open configuration (123).
Absstract of: EP4421928A1
A secondary battery includes: an electrode assembly comprising a lead tab; a case configured to accommodate the electrode assembly and an electrolyte solution; a cap assembly electrically connected to the lead tab, and coupled to the case to seal the case; and an insulation plate between the electrode assembly and the cap assembly within the case, and having a tab opening configured to enable the lead tab to be drawn out, wherein the insulation plate comprises a plurality of linear members spaced apart from each other, and a plurality of openings having a size in a range of 0.1 mm to 3 mm are regularly positioned between the plurality of linear members.
Absstract of: EP4421967A1
The present invention relates to a top-bottom separable busbar frame and a battery module including the same, and more particularly to a top-bottom separable busbar frame including a busbar frame disposed on at least one side of a plurality of battery cells, the busbar frame being constituted by an upper busbar frame and a lower busbar frame configured to be separated from and coupled to each other, a plurality of pass-through portions configured to allow electrode leads of the plurality of battery cells pass to extend therethrough, and a plurality of busbars disposed to face the plurality of pass-through portions, the plurality of busbars being electrically connected to the plurality of electrode leads, and a battery module including the same.
Absstract of: EP4421951A2
A battery pack (P), a battery module including the battery pack, and a power supply device including the battery module. The battery pack includes: a type-1 battery cell (C1); and a series of type-2 battery cells (C2) which have an output power and a capacity different from an output power and a capacity of the type-1 battery cell (C1) and are arranged along a circumference of the type-1 battery cell (C1) to surround the type-1 battery cell. The series of type-2 battery cells (C2) are connected in parallel to the type-1 battery cell (C1). The battery pack (P) is a high-power, high-capacity battery pack capable of instantaneously outputting high power without a decrease in lifespan for a long time.
Absstract of: EP4421918A1
Provided is a lithium-ion secondary batteries including lithium vanadium fluorophosphate (e.g., LiVPO<sub>4</sub>F and its derivatives) and/or a mix containing LVPF as a positive electrode active material and an electrolytic solution including tris(trimethylsilyl) phosphate (TTSP) to reduce cycle capacity loss.
Absstract of: EP4421931A1
A battery including a housing, a plurality of battery cells in the housing, and a spring plate providing a biasing force against the plurality of battery cells. The spring plate is configured such that a tension of the spring plate may be adjusted from outside of the housing.
Absstract of: EP4421965A1
The present disclosure relates to a battery module, including a cell assembly including one or more battery cells and a busbar assembly electrically connecting the one or more battery cells, a module case including an open part at least partially opened on one surface, and forming an accommodating space for accommodating the cell assembly therein through the open part, a module cover coupled to the module case to close the open part, and a filling part which is provided between an outside of the busbar assembly and the module case and includes an electrically insulating material, and an assembly method thereof.
Absstract of: EP4421907A1
Embodiments of this application provide a positive electrode active material, a positive electrode plate, a secondary battery, a battery module, a battery pack, and an electric apparatus. The positive electrode active material comprises a core and a shell enveloping the core. Chemical formula of the core is Li<sub>1+x</sub>Mn<sub>1-y</sub>A<sub>y</sub>P<sub>1-z</sub>R<sub>z</sub>O<sub>4</sub>, where A is one or more elements selected from Zn, Al, Na, K, Mg, Mo, W, Ti, V, Zr, Fe, Ni, Co, Ga, Sn, Sb, Nb, and Ge, and R is one or more elements selected from B, Si, N, and S. The shell includes a first coating layer, a second coating layer, and a third coating layer. The first coating layer includes a crystalline pyrophosphate Li<sub>a</sub>MP<sub>2</sub>O<sub>7</sub> and/or M<sub>b</sub>(P<sub>2</sub>O<sub>7</sub>)<sub>c</sub>, where each M is independently one or more elements selected from Fe, Ni, Mg, Co, Cu, Zn, Ti, Ag, Zr, Nb, and Al. The second coating layer includes a crystalline phosphate XPO<sub>4</sub>, where X is one or more elements selected from Li, Fe, Ni, Mg, Co, Cu, Zn, Ti, Ag, Zr, Nb, and Al. The third coating layer includes a carbon matrix and a doping element, the doping element including one or more selected from nitrogen, phosphorus, sulfur, boron, and fluorine. The positive electrode active mate
Absstract of: EP4421964A1
The present invention relates to an inter-module busbar capable of delaying thermal runaway propagation and a battery pack including the same, and more particularly to an inter-module busbar capable of delaying thermal runaway propagation, the inter-module busbar including a metal plate for electrical connection and a cover member configured to partially encompass the metal plate, wherein the metal plate has at least one first through-hole formed therein in a longitudinal direction, and wherein a first closure member is configured to be inserted into the first through-hole of the metal plate, and a battery pack including the same.
Absstract of: EP4421893A1
Die Erfindung betrifft ein Verfahren zur Herstellung von Elektroden für Akkumulatorzellen, wobei ein Materialband (4) zumindest auf einer ersten Seite (14) mit einem Beschichtungsmaterial (6) beschichtet wird und wobei das Beschichtungsmaterial (6) mittels einer ersten Auftragungs-Walze (10) auf die erste Seite (14) aufgetragen wird.
Absstract of: EP4421895A1
Disclosed are batteries and electrical apparatuses. Non-faradaic capacitance of the negative electrode plate is Cdl nF, the sphericity of the negative active material contained in the negative electrode plate is S, and Cdl and S satisfy 0.5≤Cdl×S≤5. By adjusting Cdl value and sphericity S, so that they are in the range of 0.5≤Cdl×S≤5, which can effectively reduce the specific surface area of the negative active material, increase the tap density, so that the negative electrode plate has a high tap density without causing overpressure phenomenon. Furthermore, the mechanical stress experienced by the negative active materials of the negative electrode plate during rolling is minimized, and the reaction area with the electrolyte is minimized, it has good liquid retention properties, thereby avoiding the occurrence of gas generation and swelling, so that the batteries have excellent rate performance and cycle performance.
Absstract of: EP4421942A2
A battery pack includes a case, an electrode assembly accommodated in the case, and a protection circuit module connected to the electrode assembly, wherein the protection circuit module includes, a substrate, one or more component mounting areas with a plurality of components, and one or more coating areas, at least some of which have different heights from a top surface of the substrate.
Absstract of: EP4421914A1
The present invention relates to a single-particle positive electrode active material capable of providing a battery having improved initial resistance and lifespan, a method for preparing the same, and a positive electrode including the same, and relates to a single-particle positive electrode active material having a (cosα)<2> value of 0.5 or greater wherein α represents an angle between a long axis of a crystal grain obtained through electron backscatter diffraction (EBSD) analysis and a lithium migration path, a method for preparing the same, and a positive electrode including the same.
Nº publicación: EP4421940A1 28/08/2024
Applicant:
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd
Absstract of: EP4421940A1
An electrode assembly, wherein the laminated structure is partially or wholly pyramidal in shape, thereby mitigating a short phenomenon occurring at a lateral portion during battery operation, and a secondary battery comprising same are prepared.The electrode assembly, wherein a negative electrode layer having negative electrode active material layers on both sides of a negative electrode current collector; and a positive electrode layer having a first positive electrode active material layer and a second positive electrode active material layer respectively on both sides of a positive electrode current collector are alternately laminated, and solid electrolyte layers are each placed between the positive and negative electrode layers, respectively, wherein, in the positive electrode layer, the first positive electrode active material layer and the second positive electrode active material layer have different lengths extending from the centerline of the positive electrode current collector in the directions of both ends of the positive electrode current collector, wherein the length of the negative electrode active material layer facing the relatively short first positive electrode active material layer is equal to or shorter than the length of the relatively long second positive electrode active material layer.
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