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1111
results.
Updated on
02/09/2024 [07:41:00]
Results 325 to 350 of 1111
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: 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: 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: 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: 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.
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.
Absstract of: WO2024177328A1
A doctor blade, according to an embodiment of the present invention, comprises: a first blade having a first tip comprising an inclined flat surface; and a second blade having a second tip comprising a curved surface, wherein the first blade and the second blade are in contact with each other, can integrally move toward a traveling electrode on which an active material has been provided on a current collector, or can move in the opposite direction, or can individually move.
Absstract of: WO2024177327A1
A method for forming patterns on a traveling electrode by providing an active material on a current collector, according to an embodiment of the present invention, comprises the steps of: (A) moving a doctor blade to a traveling electrode so that the tip of the doctor blade faces a current collector; (B) maintaining a state in which the doctor blade has been moved to the traveling electrode for a first predetermined period; and (C) moving the doctor blade in the opposite direction from the electrode.
Absstract of: WO2024174466A1
A battery box cooling, explosion prevention and battery swapping system consisting of annular batteries and a chiller. An annular battery cell and coolant exchanger combination provided in an electric vehicle battery box is characterized by explosion prevention, cooling and heat dissipation and easy replacement. A thermal expansion and cold contraction prevention exhaust port is provided in the top of a battery casing of an annular battery cell; a third nut is provided above the thermal expansion and cold contraction prevention exhaust port and a pressure relief air cylinder is screwed onto the third nut, so that an annular battery cell explosion prevention device is formed. The annular battery cell and coolant exchanger combination enables heat dissipation for a hollow part of the annular battery cell. The system can rapidly cool and heat battery packs, and can quickly disassemble batteries inside the battery packs without the need to completely discard the entire battery packs, thereby greatly reducing electric vehicle battery costs.
Absstract of: WO2024174057A1
The present application relates to a non-aqueous electrolyte, comprising at least one additive of general formula I and Na and/or K ions. Use of the non-aqueous electrolyte in the preparation of a lithium secondary battery can prolong the cycle life of the lithium secondary battery at a high temperature and reduce the battery volume expansion rate of the lithium secondary battery after long-term storage at a high temperature, so as to increase the capacity retention rate of the lithium secondary battery after long-term storage at a high temperature. The present application further relates to a lithium secondary battery comprising the non-aqueous electrolyte and an electrical device comprising the lithium secondary battery.
Absstract of: WO2024174552A1
Provided in the present application are a liquid cooling system and a battery pack. The liquid cooling system comprises a plurality of combined liquid cooling modules, a liquid intake pipeline assembly and a liquid output pipeline assembly, wherein each combined liquid cooling module comprises a plurality of liquid cooling units which are arranged in a stacked manner; the liquid intake pipeline assembly comprises a plurality of liquid intake pipe main lines which are connected in series, and the plurality of liquid cooling units are respectively in communication with the corresponding liquid intake pipe main lines; and the liquid output pipeline assembly comprises a plurality of liquid output pipe main lines which are connected in series, and the plurality of liquid cooling units are respectively in communication with the corresponding liquid output pipe main lines.
Absstract of: WO2024174093A1
The present application provides a separator, a preparation method therefor, and a secondary battery and a powered device related thereto. The separator comprises a porous substrate and a coating arranged on at least one surface of the porous substrate, the coating comprises a three-dimensional framework structure and organosilicon particles, and the three-dimensional framework structure is filled with at least a part of the organosilicon particles.
Absstract of: WO2024177333A1
The objective of the present invention is to provide: a sulfide-based solid electrolyte having improved ionic conductivity; a method for preparing the sulfide-based solid electrolyte; and an all-solid-state battery including the sulfide-based solid electrolyte. The present invention provides a sulfide-based solid electrolyte containing a Group 13 element and having an argyrodite-type crystal structure, the sulfide-based solid electrolyte being represented by chemical formula Li7-x-2yMyPS6-xHax, where M is at least one element selected from the Group 13 elements, Ha is at least one element selected from the halogen elements and comprises Br, 0＜x＜2.5, and 0＜y＜0.2.
Absstract of: WO2024177351A1
The present invention relates to a lithium metal secondary battery comprising an electrolyte-swellable polymer thin film that inhibits the high reactivity of lithium metal, the formation of lithium dendrites and dead lithium by forming a special polymer film capable of swelling in a liquid electrolyte, to increase the cycle life of lithium metal symmetrical batteries and secondary batteries.
Absstract of: WO2024177344A1
The present invention relates to a battery pack comprising a pack frame, and a plurality of battery modules arranged to be spaced apart from each other in the width direction inside the pack frame, wherein the pack frame includes: a bottom plate; a side plate; a cavity part which is provided inside the bottom plate and in which a coolant is filled and stored without empty space; and an outlet by which the inside of the cavity part communicates with the outside of the pack frame.
Nº publicación: WO2024177133A1 29/08/2024
Applicant:
NATIONAL UNIV CORPORATION HOKKAIDO UNIV [JP]
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Absstract of: WO2024177133A1
The present invention relates to manganese dioxide suitable as a raw material of an electrode material for a polyvalent metal ion secondary battery. The manganese dioxide according to the present invention has an α-type crystal structure. Ammonium ions are incorporated in the α-type crystal structure. The manganese dioxide according to the present invention has an average crystallite size of at most 5.0 nm, as measured using the Halder-Wagner method based on X-ray diffraction, and a BET specific surface area of at least 100 m2/g.
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