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1110
results.
Updated on
01/09/2024 [07:42:00]
Results 125 to 150 of 1110
Absstract of: WO2024177577A1
There is provided a solid polymer electrolyte comprising a cross-linked polytriazolium matrix. There is also provided a method of preparing the solid polymer electrolyte. There is further provided a battery comprising the solid polymer electrolyte as described herein.
Absstract of: WO2024178280A1
A battery pack includes a battery pack housing, a plurality of energy storage devices of a plurality of different types located in the battery pack housing, and a battery management system (BMS) unit electrically coupled to the plurality of energy storage devices and configured to manage an operation of the plurality of energy storage devices.
Absstract of: WO2024178267A1
Disclosed herein is a method of discharging a battery by providing a composition having a solution of a crosslinked or crosslinkable polymer and a solvent and conductive carbon particles; and applying the composition to a battery in contact with an anode and a cathode to form an electrical connection from the anode to the cathode.
Absstract of: WO2024174472A1
Provided in the present invention are an energy storage thermal management system and method. The energy storage thermal management system comprises a controller, a battery, a power electronic device, and a shunting apparatus. The controller determines the operating mode of the energy storage management system, the operating mode being any one of a preset first mode, second mode and third mode; and according to the operating mode of the energy storage thermal management system, controls a corresponding path of the shunting apparatus to be turned on, so that in the first mode, the battery performs heat exchange in a compression cooling mode and the power electronic device performs heat exchange in a liquid-cooled heat exchange mode; in the second mode, the battery and the power electronic device both perform heat exchange in the liquid-cooled heat exchange mode; and in the third mode, the power electronic device and/or an electric heater perform heat exchange with the battery. The present invention can select different heat exchange modes for the battery and the power electronic device according to different operating modes, so as to meet the heat dissipation requirements of the battery and the power electronic device.
Absstract of: WO2024174475A1
Provided are a layered sodium ion battery positive electrode material and a preparation method therefor and a use thereof. The chemical formula of the layered sodium ion battery positive electrode material is NaaMgbCuxFeyMnzO2, wherein a+2x+3y+4z+2b=4, and 0.85≤a≤0.95, 0.05≤b≤0.1, x>0, y>0, z>0, and the valence of Mn is +4. The sodium ion positive electrode material is doped with a proper amount of magnesium, so that trivalent manganese in the material can be completely oxidized into tetravalent manganese, and the reduction of Mn4+ at low potential can be inhibited.
Absstract of: WO2024174470A1
Disclosed in the present invention is an air-cooled circulation energy storage system. The air-cooled circulation energy storage system comprises: an energy storage cabinet, which comprises a housing and a battery compartment arranged in the housing, wherein an air conveying channel is provided between the battery compartment and a side wall of the housing; a plurality of battery modules, which are sequentially arranged in the battery compartment, wherein each battery module comprises a battery and an air-cooled box for containing the battery, and a cold air inlet and a hot air outlet are provided in the air-cooled box; and an air conditioning system, which comprises an internal-circulation air duct and an external-circulation air duct, wherein the internal-circulation air duct comprises an air conditioner and air discharge plates, the air discharge plates comprise a first air discharge plate and a second air discharge plate, the first air exhaust plate and the second air exhaust plate fit with each other to form a cold air channel, the cold air channel is in communication with the cold air inlet, the external-circulation air duct comprises a circulation fan, a transverse partition plate and a longitudinal partition plate, a hot air channel is formed between the transverse partition plate and the longitudinal partition plate and is in communication with a hot air port, and the circulation fan is in communication with the hot air channel and conveys hot air in the hot air chan
Absstract of: US2024285062A1
A wearable pouch operable to hold at least one portable battery pack and other power or communications equipment. The wearable pouch includes a main body with a front side, a back side opposite the front side, at least one scalable opening, and at least one opening for at least one lead from the at least one portable battery pack secured within the wearable pouch.
Absstract of: US2024288486A1
A device for compressing a portion of an energy storage cell includes a first shell element having a first receiving portion designed to receive the portion of the energy storage cell, and a second shell element, movable relative to the first shell element between an open position and a closed position. When the second shell element is in the open position, the portion of the energy storage cell can be inserted into the device such that the portion of the energy storage cell is received into the first receiving portion. When the second shell element is in the closed position, the first and second shell elements jointly define a cavity containing the first receiving portion and being designed to clampingly hold the portion of the energy storage cell substantially elastically compressed. A system and method for compressing the portion of the energy storage cell are also provided.
Absstract of: US2024288506A1
A portable power bank including a rechargeable battery and/or a remote server may detect loss of capacity in the power bank battery. The power bank and/or remote server determines a nominal capacity of the power bank, and an actual capacity of the power bank, the actual capacity being less than the nominal capacity. The power bank and/or remote server compares the actual capacity to the nominal capacity to determine a health value of the power bank battery. When the power bank battery health value is at or below a threshold value, the power bank and/or remote server transmits an indication of the health value.
Absstract of: US2024288509A1
A battery system includes a battery pack including a plurality of battery cells, a first main relay including a first end connected to a positive electrode of the battery pack, a second main relay including a first end connected to a negative electrode of the battery pack, a first link line connected to a second end of the first main relay, a second link line connected to a second end of the second main relay, and a battery management system is configured to close the first main relay, measure a positive electrode voltage of the battery pack and a negative link voltage of the second link line, and determine occurrence of an external short circuit in response to a voltage difference between the positive electrode voltage of the battery pack and the negative link voltage being less than a predetermined reference voltage.
Absstract of: US2024288501A1
A system for monitoring the state of a battery comprising cell groups includes cell monitoring devices (CMDs) associated with corresponding cell groups and a battery management system (BMS). Each CMD measures properties of cells in the respective cell group using its sensor system and evaluates the measurements to detect faults at the monitored cells. When CMD detects a fault, CMD stores a fault indicator, indicating that the respective cell group experienced a fault, and fault data related to the detected fault, including a timestamp indicating when CMD detected the fault, for subsequent transmission to BMS. Upon waking, BMS receives and processes fault indicators and fault data shared by CMDs to determine action(s) responsive to the fault(s) detected by CMDs.
Absstract of: WO2024177450A1
The present invention relates: to a hydroxy group-based polymeric binder for a sulfur battery that can effectively suppress the elution of polysulfides, generated by the reduction of sulfur during a discharge process, into an electrolyte, thereby solving the problem of poor life characteristics of a sulfur battery as a result; and to a sulfur battery positive electrode and a sulfur battery comprising same. The polymeric binder for a sulfur battery according to one embodiment of the invention is characterized by being prepared through a chemical reaction between a water-soluble polymer and a hydroxyl group-based crosslinker represented by the formula M(OH)n, wherein M is a metal or metalloid, and n is an integer from 1 to 5. In addition, the present invention relates: to a carboxylic acid-based polymeric binder for a sulfur battery that can effectively suppress the elution of polysulfides, generated by the reduction of sulfur during a discharge process, into an electrolyte, thereby solving the problem of poor life characteristics of a sulfur battery as a result; and to a sulfur battery positive electrode and a sulfur battery comprising same. The polymeric binder for a sulfur battery according to one embodiment of the invention is a crosslinked water-soluble polymeric binder characterized by being prepared through a chemical reaction between a water-soluble polymer and a carboxylic acid-based crosslinking agent.
Absstract of: WO2024177390A1
The present invention relates to a method for preparing a precursor for a lithium secondary battery, the method comprising the steps of: preparing metal raw materials; and forming a reaction solution including the metal raw materials to co-precipitate a metal hydroxide precursor, wherein the reaction solution further includes an additive, and the additive includes a colloidal coagulant.
Absstract of: WO2024177414A1
The present invention relates to a carbon nanotube dispersion having low viscosity and comprising a small size of particles, the carbon nanotube dispersion comprising carbon nanotubes, a dispersant, and a dispersion medium, wherein the dispersant includes a first dispersant and a second dispersant in a weight ratio of 100:10-100:90, the first dispersant is a dispersant containing a cyclic amide group, the second dispersant is a polymer compound containing both a sulfone group and styrene, and the weight ratio of the carbon nanotubes to the dispersant is 100:50-100:500.
Absstract of: WO2024178161A1
The present invention discloses methods and materials to add a polymer material to a liquified gas electrolyte solution for use in an electrochemical energy storage device such as a lithium-ion battery or related technology to further improve the battery cell' s safety properties. An example device includes an ionically conducting electrolyte comprised of a liquefied gas solvent, a salt, and a polymer. The liquefied gas solvent has a vapor pressure above 100 kPa at a temperature of 293.15 K, and the polymer is at low enough concentration that it is fully dissolved in the liquefied gas solvent. The device may include an anode, a cathode, and a separator layer in contact with the ionically conducting electrolyte. A housing may enclose the ionically conducting electrolyte, the anode, the cathode and the separator layer.
Absstract of: WO2024174510A1
An electrode assembly (10), a manufacturing method for an electrode assembly (10), a battery (1), and an electrical apparatus. The electrode assembly (10) comprises separators (11) and electrode sheets (12); each electrode sheet (12) comprises an active material portion (121) and a tab (122); the tab (122) comprises a weakening mark (1221), a first connecting portion (1222), and a second connecting portion (1223); the weakening mark (1221) is connected between the first connecting portion (1222) and the second connecting portion (1223); the weakening mark (1221) is used for guiding the first connecting portion (1222) to be bent, so that the first connecting portion (1222) and a winding axis (L) are arranged at a preset angle (α). On this basis, the roll-like electrode assembly (10) can prevent particles from falling into the electrode assembly by means of the bent first connecting portion (1222), thereby improving the yield of the electrode assembly (10).
Absstract of: WO2024174513A1
Provided is an electrical device, comprising a secondary battery. The secondary battery comprises a positive electrode sheet, the positive electrode sheet comprising a positive electrode composite material. The positive electrode composite material comprises a first active material and a second active material. The first active material and the second active material satisfy Equation 1, wherein r1 is the primary-particle average particle size of the first active material, r2 is the primary-particle average particle size of the second active material, r1 and r2 being calculated in a same unit, D1 is the active-ion diffusion coefficient of the first active material, D2 is the active-ion diffusion coefficient of the second active material, D1 and D2 being calculated in a same unit, r1 and r2 are unequal, and/or D1 and D2 are unequal.
Absstract of: WO2024174482A1
A battery and a battery pack. The battery comprises a cover plate, a shell and an explosion-proof valve, wherein the cover plate covers the shell; the explosion-proof valve is arranged on the cover plate; the shell is provided with an extension wall, and the extension wall is arranged on the end of the shell close to the cover plate and extends towards the inner side of the shell; and the extension wall is welded to the cover plate, and is spaced apart from the explosion-proof valve. The dimension of the cover plate in a first direction is L1, the dimension of the explosion-proof valve in the first direction is L2, and the dimension of contact between the extension wall and the cover plate in the first direction is L3, wherein L1 ＞ L2 + L3, and 0.1 ≤ L3/L1 ≤ 0.5. As the shell is provided with an extension wall welded to the cover plate, a non-welded area of the shell is not easily damaged and deformed during welding due to isolation and protection by the extension wall; and when 0.1 ≤ L3/L1 ≤ 0.5, the welding between the extension wall and the cover plate can be further facilitated, and the dimension settings of the explosion-proof valve in the first direction are also further facilitated, such that the valve ejection pressure is relatively moderate.
Absstract of: US2024288500A1
A method and apparatus for battery charge/discharge profile analysis is provided. The method includes training a machine learning model using a plurality of training charge/discharge profiles as a training dataset, where each training charge/discharge profile includes training section classification information, and the training section classification information is a dataset in which an identification number of any one of a plurality of charge/discharge control sections performed in a sequential order in an activation process is allocated to each time index; inputting a target charge/discharge profile acquired through the activation process of a battery cell to the machine learning model; and acquiring target section classification information for the input target charge/discharge profile from the machine learning model. The target section classification information is a dataset in which the identification number of any one of the plurality of charge/discharge control sections is allocated to each time index of the target charge/discharge profile.
Absstract of: US2024288498A1
The storage battery diagnosis device includes: a data point sequence generation unit which generates, on the basis of a current of a storage battery detected by a current detection device and a voltage detected by a voltage detection device, a data point sequence including a Zth-order derivative/integral curve expressed with a Zth-order derivative/integral voltage or a Zth-order derivative/integral capacity where Z represents a real number; a reference data provision unit which provides, as a reference, a reference data point sequence of the storage battery or an electrode; a point set registration unit which performs point set registration between the reference data point sequence and the data point sequence generated by the data point sequence generation unit; and a diagnosis unit which estimates a parameter indicating a state of degradation of the storage battery or the electrode on the basis of a result from the point set registration unit.
Absstract of: US2024288503A1
A correction device that corrects a measured value of a current of an energy storage cell or an assembled battery is configured to calculate a correction value of the measured value of the current based on an SOC difference between a first SOC of the energy storage cell or the assembled battery estimated based on an integrated value of the measured values of the current and a second SOC of the energy storage cell or the assembled battery estimated based on a voltage of the energy storage cell or the assembled battery and is configured to correct the measured value of the current based on the calculated correction value.
Absstract of: US2024288364A1
An example system, method, and computer program product for detecting thermal runaway in a battery cell is provided. The example system includes a light source configured to emit light across a spectrum of wavelengths toward a sensing fiber having a first end and a second end. The sensing fiber may be positioned to receive the light emitted by the light source at the first end. The sensing fiber may further contain a filtering mechanism configured to reflect a portion of the spectrum of wavelengths of the light. In addition, the sensing fiber may be optically coupled to a photodiode at the second end, such that a portion of the light is reflected as the light travels through the sensing fiber. The gas may be detected based at least in part on an intensity of the light received at the photodiode indicating the onset of thermal runaway.
Absstract of: WO2024177383A1
A server according to one embodiment disclosed in the present document comprises: a communication unit that receives first data including first identification information and physical property information of a battery cell from a first device included in a first process during a manufacturing process of a battery cell, and receives second data including second identification information of the battery cell from a second device included in a second process different from the first process; and a controller that identifies the first data corresponding to the second data on the basis of the first identification information and the second identification information, and transmits the first data to the second device.
Absstract of: WO2024177421A1
A method for analyzing a structure of a solid-state electrolyte film is provided, the method comprising a step of dissolving a solid-state electrolyte in a polar solvent which selectively dissolves only a solid-state electrolyte in a solid-state electrolyte film comprising the solid electrolyte and a binder. The method for analyzing the structure of the solid-state electrolyte film according to an embodiment of the present invention enables to analyze the structure of the solid-state electrolyte film by effectively removing only the solid-state electrolyte while maintaining the structure of the solid-state electrolyte film , which comprises the solid electrolyte and the binder, as it is.
Nº publicación: WO2024177427A1 29/08/2024
Applicant:
LG ENERGY SOLUTION LTD [KR]
\uC8FC\uC2DD\uD68C\uC0AC \uC5D8\uC9C0\uC5D0\uB108\uC9C0\uC194\uB8E8\uC158
Absstract of: WO2024177427A1
The present invention relates to a method for manufacturing a lithium secondary battery, the method comprising the steps of: preparing a battery cell comprising a positive electrode, a negative electrode, and an electrolyte, the positive electrode including a lithium-rich manganese-based oxide wherein the content of manganese among all metals excluding lithium exceeds 50 mol%, and a ratio (Li/Me) of the number of moles of lithium to the number of moles of the all metals excluding lithium exceeds 1; and activating the battery cell by charging and discharging at least once, wherein the activating step includes a step of terminating the charging when a ratio (Y/X) of the charge capacity (mAh/g) (Y) of a secondary battery to the estimated capacity (mAh/g) (X) of a positive electrode active material at a point at which all lithium ions contained in the lithium-rich manganese-based oxide form a Li/Li dumbbell structure satisfies 1.10 < Y/X ≤ 1.13.
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