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METHOD FOR PREPARING BISFLUOROSULFONYLIMIDE AMMONIUM SALT

Resumen de: EP4729474A1

Disclosed is a method for preparing a bisfluorosulfonylimide ammonium salt. According to an embodiment of the present invention, the method for preparing a bisfluorosulfonylimide ammonium salt comprises the steps of: introducing ammonium fluoride (NH4F), fluorinated alkali metal or cesium halide, and a reaction solvent into a reaction vessel and then cooling to a first temperature range; adding bischlorosulfonylimide (HCSI) dropwise to the reaction vessel, raising the temperature to a second temperature range when the exothermic reaction is completed, and then reacting during a first time range; and, when the reaction is completed, filtering to remove impurities and introducing a non-polar solvent into a filtrate to obtain a bisfluorosulfonylimide ammonium salt through a recrystallization process. The present invention can provide a method for preparing a bisfluorosulfonylimide ammonium salt, which is capable of improving the yield of the bisfluorosulfonylimide ammonium salt.

ELECTRODE ACTIVE MATERIAL, ELECTRODE, AND LITHIUM ION SECONDARY BATTERY

Resumen de: EP4730437A1

It is an object of the present invention to improve charge and discharge capacity and a capacity retention rate of an electrode active material constituting an electrode of a lithium-ion secondary battery. Provided is an electrode active material of particles comprising an organic sulfur compound, wherein Ao and As satisfy the following inequalities:(1) AO>9.0(2) AS>45.0(3) AO×AS>550 where Ao represents an oxygen content, in % by mass, in the electrode active material, and A_S represents a sulfur content, in % by mass, in the electrode active material.

ELECTRODE ACTIVE MATERIAL, ELECTRODE, AND LITHIUM ION SECONDARY BATTERY AND METHOD FOR MANUFACTURING SAME

Resumen de: EP4730424A1

0001 It is an object of the present invention to improve charge and discharge capacity and a capacity retention rate of an active material constituting an electrode of a lithium-ion secondary battery. Provided is an electrode active material of particles comprising an organic sulfur compound and a carbon material.

ELECTROLYTES AND ELECTROLYTE COMPONENTS, ADDITIVES, PRECURSORS THEREOF, AND METHODS OF MANUFACTURE

Resumen de: WO2024256865A1

Provided herein are compositions and methods of manufacturing compositions useful in producing battery electrolyte precursors and battery electrolytes.

LITHIUM-ALLOY ANODES FOR LITHIUM-SULFUR BATTERIES

Resumen de: WO2024259126A2

Lithium-magnesium alloy anodes and fluorinated ether electrolytes for lithium-sulfur batteries. The lithium-magnesium alloy anodes include about 90 wt% lithium and 10 wt% magnesium. The lithium-magnesium alloy anodes include at least one anode protective coating. The electrolyte includes about 0.4M LiTFSi and about 2 wt% LiNO3 in fluorinated ether solvents.

METHOD OF MANUFACTURE OF AN ELECTROLYTE PRECURSOR

Resumen de: WO2024256864A2

Provided herein are compositions and methods of manufacturing compositions useful in producing battery electrolyte precursors and battery electrolytes.

MODULAR ATTACHMENT OF TABBED BATTERY CELLS

Resumen de: WO2024258607A1

Battery protection circuit configurations are discussed which are detachable from the corresponding battery when the battery is scrapped or discarded. An apparatus includes a circuit substrate having interface elements configured to couple to tab terminals of a battery cell and output terminals configured to carry electrical current for the battery cell with respect to an external circuit. Each of the interface elements comprise an electrical contact that conductively contacts a mating tab terminal of the battery cell, and a releasable mechanism configured to hold the mating tab terminal against the electrical contact based at least on being placed in a locked state, and allow release the mating tab terminal based at least on being placed in an unlocked state.

PITCH-BASED COMPOSITE POWDERS CONTAINING SILICON AND METHODS FOR PRODUCTION AND USE THEREOF

Resumen de: WO2024259167A2

Composite powders may be formed by blending silicon particles with petroleum pitch under grinding conditions. The composite powders may comprise up to about 50 wt.% silicon particles, based on total mass of the composite powder, and about 15 wt.% to about 95 wt.% petroleum pitch, based on total mass of the composite powder, and, optionally, up to 80 wt.% graphite particles. The silicon particles are dispersed in a matrix comprising the petroleum pitch and the petroleum pitch comprises a plurality of pitch particles. The composite powders may be subsequently converted to a carbon matrix comprising amorphous carbon by heating the petroleum pitch at a temperature of about 700°C to about 1800°C in an environment comprising about 0.1 mol% oxygen or below.

CLOUD COMPUTING AND INTERNET OF THINGS-BASED MONITORING TECHNIQUES USING CUSTOM DEVICES

Resumen de: WO2024259182A1

An Internet-of-Things battery shunt device includes a shunt member and an outer housing the outer housing comprising a circuit board. An loT gateway device includes a circuit board comprising a microcontroller; an I2C interface and a memory. A computing system includes a remote computing device; an electronic network; an loT gateway device; and an loT battery shunt device coupled to the loT gateway device and a vehicle battery; the loT gateway device includes instructions for causing the loT gateway device to receive physical data from the loT battery shunt device; process the physical data; and transmit the physical data to the remote computing device. A computing system includes a remote gateway device configured to read sensor data; an electronic database; a processors; a memory configured to receive data; process the data; and cause the processed data to be stored.

SYSTEMS AND METHODS FOR MANUFACTURING A FUEL CELL INTERCONNECT

Resumen de: WO2024258722A2

The present disclosure generally relates to systems and methods comprising a bipolar plate interconnect. The bipolar plate interconnect includes a porous membrane metallurgically attached to a first side of a first stainless steel structure, and a nickel-phosphorous layer of non-uniform thickness positioned between the porous membrane and the stainless steel structure.

ELECTROLYTES AND ELECTROLYTE COMPONENTS, ADDITIVES, PRECURSORS THEREOF, AND METHODS OF MANUFACTURE

Resumen de: WO2024256863A1

Provided herein are compositions and methods of manufacturing compositions useful in producing battery electrolyte components or additives and battery electrolytes.

ELECTRODE

Resumen de: EP4730415A1

0001 The present disclosure can provide an electrode that prevents wrinkles and swelling and exhibits excellent capacity retention and energy density. Furthermore, the present disclosure can provide a battery cell, a battery module, and a battery pack comprising the electrode, and an electrical device comprising at least one of the battery cells, battery module, and battery pack.

BATTERY CLIP

Resumen de: WO2024256335A1

A battery clip (110) for retaining at least one battery (162) to at least one battery contact pad (152) of a circuit carrier (150) is disclosed. The battery clip (110) comprises at least one housing (112). The housing (112) comprises at least one receptacle (114) for at least partially receiving the circuit carrier (150) and the battery (162). The receptacle (114) comprises at least one opening (116) through which the battery (162) and the circuit carrier (150) are at least partially insertable. The housing (112) comprises or is at least partially formed by at least one first contact spring element (166) and by at least one second contact spring element (118). The first contact spring element (166) and the second contact spring element (118) are configured for retaining the battery (162) to the battery contact pad (152) of the circuit carrier (150). The first contact spring element (166) is configured for contacting the battery (162) being arranged on a first side (168) of the circuit carrier (150) being inserted into the receptacle (114). The second contact spring element (118) is configured for contacting a second side (170) of the circuit carrier (150) being inserted into the receptacle (114), the second side (170) opposing the first side (168).

POSITIVE ELECTRODE FOR SECONDARY BATTERY, SECONDARY BATTERY, AND METHOD FOR RECYCLING POSITIVE ELECTRODE FOR SECONDARY BATTERY

Resumen de: EP4730416A1

0001 Provided is a positive electrode for a secondary battery that makes it possible to achieve a superior battery characteristic and a superior recyclability characteristic. The positive electrode for the secondary battery includes a positive electrode active material layer and a positive electrode current collector. The positive electrode active material layer includes a positive electrode active material and a polymer compound. The positive electrode current collector supports the positive electrode active material layer. The positive electrode active material includes a lithium-transition-metal compound. A thermogravimetric loss rate measurable when the polymer compound is fired until a temperature of the polymer compound becomes 400°C in atmospheric air is 60% or higher.

ELECTRODE SHEET INSPECTION CONTROL SYSTEM

Resumen de: EP4729187A1

An electrode sheet inspection control system (100). The electrode sheet inspection control system (100) is applied to an electrode sheet coating system. The electrode sheet coating system comprises an unwinding device (101), a first surface coating device (102), a first surface drying device (103) and a winding device (104) arranged in sequence. The electrode sheet inspection control system (100) comprises a first measurement device (105); the first measurement device (105) is arranged between the unwinding device (101) and the first surface coating device (102), and the first measurement device (105) is used for measuring the size of an area to be coated on a first surface of an electrode sheet substrate output by the unwinding device (101), the first surface being perpendicular to the thickness direction of the electrode sheet substrate.

LITHIUM-MANGANESE-IRON-PHOSPHATE POSITIVE ELECTRODE MATERIAL AND PREPARATION METHOD THEREFOR AND LITHIUM-ION BATTERY

Resumen de: EP4729476A1

The present invention provides a lithium-manganese-iron-phosphate positive electrode material and a preparation method therefor and a lithium-ion battery, relating to the field of secondary batteries. The lithium-manganese-iron-phosphate positive electrode material includes: an inner core and a coating layer located on an outer surface of the inner core, wherein a material for forming the inner core includes lithium manganese iron phosphate, a material for forming the coating layer includes a high-conductivity compound, the high-conductivity compound includes manganese and a non-metallic element, and the non-metallic element includes any one of B, S, P, Si, As, and Se. In the present invention, by forming the coating layer containing the high-conductivity compound on the outer surface of lithium manganese iron phosphate, dissolution of manganese element in the lithium manganese iron phosphate can be inhibited while resistivity of the material is reduced, and cycle performance of the material is improved.

COMPOSITION FOR FORMING ELECTRODE, AND ADDITIVE

Resumen de: EP4730438A1

0001 Provided is a composition for forming an electrode, the composition containing a heterocycle-containing compound, a positive electrode active material, a binder, and a solvent, wherein the heterocycle-containing compound has a 5- or 6-membered heterocycle which contains two or more bonds selected from the group consisting of an amide bond and a sulfide bond. The composition for forming an electrode has improved storage stability by suppressing thickening and gelation through a simple method, and allows for a high concentration of solids.

DETERMINATION SYSTEM AND DETERMINATION METHOD

Resumen de: EP4729961A1

0001 A determination system (100) comprises: a calculating unit (15) for calculating, from each set of time-series data including a DC current value and at least one value of a DC voltage value or an SOC of a secondary battery (210) during charging/discharging, which is at least one of charging and discharging of the secondary battery, spectrum information representing a spectrum in a two-axis coordinate system in which one axis represents a relaxation time and the other axis represents intensity; and a determining unit (16) which uses shape information relating to the shape of the spectrum calculated by the calculating unit (15) to determine a control condition of the secondary battery (210).

ELECTROCHEMICAL CELL

Resumen de: WO2024254649A1

An electrochemical cell comprising a non electrically-conductive structural frame for supporting components of the electrochemical cell and a tensioning element, wherein the structural frame comprises engagement means adapted to engage the tensioning element, wherein the engagement means comprises at least two bosses on the structural frame, each boss adapted to engage with a corresponding aperture on the tensioning element.

COIN CELL BATTERIES WITH AVERSIVE-AGENT COATING

Resumen de: US2024421388A1

Provided are aversive coatings and electrochemical cells with at least a portion of the exterior surface coated in the aversive coating to deter children from eating the electrochemical cell. Described are compositions and methods for preparing electrochemical cells coated in aversive coatings with ratios of aversive taste agent to water-soluble polymer that adequately adhere the aversive coating to the electrochemical cell.

COMPOSITION FOR ELECTRODE FORMATION AND ADDITIVE

Resumen de: EP4730439A1

0001 The present invention provides a composition for electrode formation that, via a simple method, suppresses thickening and gelation and improves storage stability, and that enables a high concentration of solid content. Provided is a composition for electrode formation comprising a heterocycle-containing compound, a positive electrode active material, a binder, and a solvent, wherein the heterocycle-containing compound has a five-membered ring heterocycle having not less than two N atoms and has at least one group selected from the group consisting of a hydroxy group and a thiol group.

CELL BALANCE ADJUSTMENT METHOD AND CELL BALANCE ADJUSTMENT DEVICE FOR SERIES SECONDARY BATTERY

Resumen de: EP4730598A1

Disclosed is a cell balance adjustment method of equalizing charge states of cells 2 in a secondary battery 3. All of the cells 2 forming the secondary battery 3 are grouped into a plurality of processing target groups 4, and each processing target group shares a part of the cells 2 with an adjacent processing target group 4. The method includes a capacitor charging step of connecting a capacitor 8 to both end portions of the processing target group 4 and charging the capacitor 8, and a capacitor discharging step of connecting the capacitor to a predetermined processing target cell included in the processing target group 4 and discharging an electric charge of the capacitor 8 to charge the processing target cell.

ANODE ACTIVE MATERIAL, LITHIUM SECONDARY BATTERY ANODE COMPRISING SAME, AND LITHIUM SECONDARY BATTERY COMPRISING ANODE

Resumen de: EP4730431A1

The present application relates to a negative electrode active material, a negative electrode for a lithium secondary battery, a method for manufacturing a negative electrode for a lithium secondary battery, and a lithium secondary battery including a negative electrode.

ROLL MAP CREATION SYSTEM

Resumen de: EP4730404A1

0001 A roll map creating system for a series of roll-to-roll processes in which an electrode unwound from an unwinder is wound in a rewinder, the roll map creating system includes a roll map creating device for creating a roll map for each process, the roll map being defined in a coordinate plane including a longitudinal direction axis of the electrode and a width direction axis of the electrode, and a position of the electrode in each process is represented by a coordinate value of the coordinate plane. The roll map creating device includes a roll map matching part for matching a coordinate value of the roll map of each of the processes prior to the final process with a coordinate value of the roll map of the final process, such that the electrode represented by the roll map of the final process is matched with the electrode represented by the roll map of each of the processes prior to the final process in a series of roll-to-roll processes.

ROLL MAP CREATION SYSTEM

Nº publicación: EP4730403A1 22/04/2026

Solicitante:

LG ENERGY SOLUTION LTD [KR]

Resumen de: EP4730403A1

A roll map creating system for a series of roll-to-roll processes in which an electrode unwound from an unwinder is wound in a rewinder, the roll map creating system includes a roll map creating device for creating a roll map for each process, the roll map being defined in a coordinate plane including a longitudinal direction axis of the electrode and a width direction axis of the electrode, and a position of the electrode in each process is represented by a coordinate value of the coordinate plane. The roll map creating device includes a roll map matching part for matching a coordinate value of the roll map of each of the processes prior to the final process with a coordinate value of the roll map of the final process, such that the electrode represented by the roll map of the final process is matched with the electrode represented by the roll map of each of the processes prior to the final process in a series of roll-to-roll processes.