Resumen de: US2023170463A1

Proposed is a transport device for transporting a carrier in the form of a foil for producing electrodes for energy accumulators, in particular electrodes for lithium-ion batteries, having at least two rollers on which the carrier is able to be borne, and of which at least one roller is provided with a drive so as to transport the carrier from roller to roller. Provided for reducing creasing is a drive device for generating an additional force that facilitates transport, wherein the drive device for generating an alternating magnetic field has an alternating field generator which generates a temporally alternating magnetic field, the magnetic field being oriented such that, in addition to the effect of force in the transport direction, an effect of force perpendicular to the transport direction is initiated in the plane of the carrier.

Resumen de: US2023170524A1

A solid ion conductor compound represented by Formula 1, an electrochemical cell including the same, and a method of preparing the solid ion conductor compound. The solid ion conductor is a compound of Formula 1LiaMbZrcXdTe  Formula 1wherein in Formula 1, 1

Resumen de: US2023170520A1

A herein disclosed manufacturing method of a secondary battery is a manufacturing method of a secondary battery that includes a wound electrode assembly and a battery case. The herein disclosed manufacturing method of the secondary battery comprising: an arranging step for arranging the plural wound electrode assemblies inside the battery case; a peeling step for peeling off at least one, among the positive electrode and the negative electrode, and the separator; and a liquid injection step for performing a liquid injection of the electrolyte solution into the battery case. At the peeling step, at least one, among the positive electrode and the negative electrode of each wound electrode assembly, and the separator are peeled off to make a state where a peeled area is formed on each of the plural wound electrode assemblies.

Resumen de: US2023170519A1

A technology for obtaining a battery including a wound electrode body with high productivity is provided. In a preferred aspect of the battery disclosed herein, an average value of the shortest distances of the positive electrode tabs in the first region from one end to the tips in the protruding direction of the positive electrode tabs is equal to or less than an average value of the shortest distances of the positive electrode tabs in the second region. Further, a difference between the average value of the shortest distances of the positive electrode tabs in the first region and the average value of the shortest distances of the positive electrode tabs in the second region is smaller than the thickness of the electrode body.

Resumen de: US2023170477A1

A blended lithium-ion electrode for an electric vehicle and methods of manufacturing the electrode are disclosed. The blended lithium-ion electrode includes a first mixture of a lithium metal oxide comprised of LiXO2, wherein X is selected from the group consisting of nickel, cobalt, manganese, aluminum, iron, or mixtures thereof; and a second mixture of a lithium iron phosphate comprised of LiYPO4, wherein Y is selected from the group consisting of iron, manganese, cobalt, nickel, aluminum, titanate, or mixtures thereof. In further embodiments, the blended lithium-ion electrode includes graphene sheets to provide structure, electrochemical stabilizer, and electronic conductivity enhancer.

Resumen de: US2023170518A1

A support apparatus for the production of electric energy storage devices comprising a support element, which is linearly movable along a feeding plane, an actuator system, which is configured to drive the support element in an intermittent manner, a first roller, which is configured to be caused to rotate at a variable speed, and a second roller, which is opposite the first roller. A further actuator system is configured to control the speed of the first roller compensating for the intermittent movement of the support element.

Resumen de: US2023170464A1

A lead alloy is described that is capable of manufacturing a positive electrode for a lead storage battery less likely to cause corrosion penetrating through a lead layer for the positive electrode in the thickness direction. The lead alloy contains 0.4% by mass or more and 2% by mass less of tin and 0.004% by mass or less of bismuth, with the balance being lead and inevitable impurities. When image analysis of a crystal orientation distribution map created by analyzing the surface of the lead alloy by an electron backscatter diffraction method is performed, intersection points of misorientation boundaries between crystal grains with a crystal misorientation of 5° or more and a straight line extending in one specific direction are extracted. The distances between two adjacent intersection points among the extracted intersection points are measured, and the average value of the distances is 50 μm or less.

Resumen de: US2023170461A1

The herein disclosed nonaqueous electrolyte secondary battery includes an electrode assembly in which a positive electrode including positive electrode active layers, a negative electrode including negative electrode active layers, and a separator are provided. The negative electrode active material layer includes a first area between an end side and a position 5 mm away from the end side in the width direction. An end part of the positive electrode is opposed to at least a part of the first area. A thickness T1 at a central part of the positive electrode and a thickness T2 at the end part of the positive electrode satisfy 0.95

Resumen de: US2023170468A1

The present invention relates to a method of forming a cured conductive binder material, to a method of forming a curable binder formulation, to a curable binder formulation, to a cured conductive binder material and to an electrochemical cell. In one embodiment, the method of forming a cured conductive binder material includes the steps of: (i) providing a liquid formulation comprising a liquid carrier, at least one active material, at least one polymeric binder and at least one modified metal coordination complex; and (ii) curing the liquid formulation of step (i), to thereby form a cured conductive binder material.

Resumen de: US2023170480A1

A positive electrode and a lithium secondary battery including the same are disclosed herein. In some embodiments, a positive electrode for a lithium secondary battery includes a positive electrode current collector, a primer coating layer formed on the positive electrode current collector, and a positive electrode active material layer formed on the primer coating layer, wherein the primer coating layer comprises lithium iron phosphate, a binder, a conductive material, and a dispersant, wherein the lithium iron phosphate is represented by the following Chemical Formula 1, wherein the dispersant is a hydrogenated nitrile butadiene rubber (HNBR), and wherein the hydrogenated nitrile butadiene rubber is contained in an amount of 0.4 to 2.0 wt % based on the weight of lithium iron phosphateLi1+aFe1−sMs(PO4−b)Xb  [Chemical Formula 1]wherein,M is at least one element selected from Co, Ni, Al, Mg, Ti and V,X is F, S, or N, and0≤s≤0.5; −0.5≤a≤+0.5; 0≤b≤0.1.

Resumen de: US2023170526A1

Provided are an additive represented by Chemical Formula 1, an electrolyte for a lithium secondary battery including same, and a lithium secondary battery. The details of Chemical Formula 1 are as described in the specification.

Resumen de: US2023170525A1

A dextrin-DADMAC based double network polymer gel electrolyte is disclosed. The gel electrolyte includes: a first polymer network having a network structure in which linear main chains including diallydimethylammonium chloride (DADMAC) monomers are crosslinked with each other via N,N-methylenebisacrylamide; a second polymer network including a dextrin polymer chain, and entangled with the first polymer network to form a double network composed of the first and second polymer networks; and a liquid electrolyte supported inside the double network composed of the first and second polymer networks. In addition, mechanical properties of the polymer gel electrolyte are improved via an ionexchange reaction between the polymer gel electrolyte and a salt.

Resumen de: US2023170528A1

A non-aqueous electrolyte secondary battery includes a positive electrode including a positive electrode active material, a separator, a negative electrode facing the positive electrode with the separator interposed therebetween, and a non-aqueous liquid electrolyte, wherein the non-aqueous liquid electrolyte includes a non-aqueous solvent, and 6-alkylthio-1,3,5-triazine-2,4-dithiol; at least a portion of the 6-alkylthio-1,3,5-triazine-2,4-dithiol is dissolved in the non-aqueous solvent; and the alkylthio group at a 6th position preferably has an alkyl group with 1 to 8 carbon atoms.

Resumen de: US2023170492A1

According to an embodiment of the present invention, a current collector for an electrode comprises a polymer film, and a conductive material provided on at least one surface of an upper surface or a lower surface of the polymer film, wherein the conductive material may include a relatively small thickness portion and a relatively large thickness portion.

Resumen de: US2023170489A1

The electrical resistance of active cathodic and anodic films may be significantly reduced by the addition of small fractions of conductive additives within a battery system. The decrease in resistance in the cathode and/or anode leads to easier electron transport through the battery, resulting in increases in power, capacity and rates while decreasing joules heating losses.

Resumen de: US2023170521A1

A system and a method for forming a composite electrolyte structure are provided. An exemplary composite electrolyte structure includes, at least in part, polymer electrolyte preforms that are bonded into the composite electrolyte structure.

Resumen de: US2023170523A1

The invention is a nonwoven fabric characterized by satisfying 0.25≤(L2/V)≤10, when an average fiber diameter of all fibers is L (μm) and a volume per m2 is V (cm3). The nonwoven fabric leads to a solid electrolyte-carrying sheet in which solid electrolyte particles are carried between fibers and which can achieve a good balance among thickness reduction, powder falling property of the solid electrolyte particles, and electrical conductivity.

Resumen de: US2023170486A1

The electrical resistance of active cathodic and anodic films may be significantly reduced by the addition of small fractions of conductive additives within a battery system. The decrease in resistance in the cathode and/or anode leads to easier electron transport through the battery, resulting in increases in power, capacity and rates while decreasing joules heating losses.

Resumen de: US2023170522A1

Provided is a sulfide-based inorganic solid electrolyte material having lithium ionic conductivity, in which the sulfide-based inorganic solid electrolyte material has a particle shape, and when a mode diameter in a number average particle size distribution of the sulfide-based inorganic solid electrolyte material that is obtained from an observed image of a scanning electron microscope (SEM) is represented by Dm [μm] and a particle size corresponding to a cumulative frequency of 90% in the number average particle size distribution is represented by D90 [μm], a value of D90/Dm is 1.6 or more and 8.0 or less.

Resumen de: US2023170516A1

An electrode drying device is disclosed herein. In some embodiments, a device includes a chamber having an entry port for receiving an electrode and an exit port for dispensing the electrode from the chamber, a guide roll, one or more heating rolls that are spaced apart from the guide roll, the guide roll and the one or more heating rolls provide a path between the entry port and the exist port through which the electrode moves during drying; and a heater disposed between the guide roll and the one or more heating rolls and configured to the electrode to a first temperature, wherein the heating roll is configured to heat to a second temperature, and the device is capable of maintaining the temperature of the electrode at a temperature equal to or higher than the first temperature and lower than the second temperature while the electrode is on the path.

Resumen de: US2023170517A1

Embodiments of this application provide an end plate positioning apparatus and battery module assembling equipment. The end plate positioning apparatus includes: a pedestal, a supporting piece, disposed on the pedestal and configured to hold an end plate; at least one first positioning mechanism, including a first positioning piece and a positioning locking piece, where the first positioning piece is rotatably connected to the pedestal, the positioning locking piece includes a guide portion and a slide portion, one of the guide portion or the slide portion is disposed on the first positioning piece, and the other is disposed on the pedestal; the guide portion includes a first position and a second position, and the slide portion is able to move between the first position and the second position to drive the first positioning piece to rotate.

Resumen de: US2023170485A1

A carbon nanotube dispersion paste includes carbon nanotubes (B), and an organic solvent (C), in which a content of the carbon nanotubes (B) is 1% to 10% by mass with respect to a total mass of the carbon nanotube dispersion paste, and, in a Bode plot obtained by impedance measurement, in which a reactance is plotted on a vertical axis and a frequency is plotted on a horizontal axis, a local minimum value of the reactance is in a frequency range of 50 to 250 kHz.

Resumen de: US2023170482A1

An anode active material layer for a lithium battery, the layer comprising multiple anode active material particles and a conductive additive that are protected by (embedded in and bonded by) a matrix resin comprising an ion-conducting elastomer or rubber having a recoverable tensile strain from 5% to 700% when measured without an additive or reinforcement in the polymer and a lithium ion conductivity no less than 10−6 S/cm at room temperature. The amount of conductive additive is preferably sufficient to form a 3D network of electron-conducing pathways that are in electrical contact with the anode material particles. Such an elastomeric or rubbery matrix also acts to maintain the structural integrity of the anode electrode, preventing interruption of the electron- and lithium ion-conducting pathways when the anode active material particles repeatedly expand and shrink in volume during battery cycling.

Resumen de: US2023170484A1

A positive electrode sheet includes a current collector, a resistance layer disposed on the current collector, and a positive electrode active material layer. The current collector includes a coating region and a non-coating region. The resistance layer includes a conductive agent and a first binder. The positive electrode active material layer includes a positive electrode active material, a conductive agent, and a second binder. A resistance of the resistance layer is greater than a resistance of the positive electrode active material layer. In a cross section of the positive electrode sheet, a projection of a part of the positive electrode active material layer on the current collector overlaps with a projection of the resistance layer on the current collector, and a projection of another part of the positive electrode active material layer on the current collector does not overlap with the projection of the resistance layer on the current collector.

Resumen de: US2023170514A1

In order to the aforementioned issue, a unit cell manufacturing apparatus according to an embodiment of the present invention includes: an electrode reel from which an electrode sheet, which is to be a plurality of electrodes, is unwound; a separator reel from which a separator sheet to be stacked with the electrodes is unwound; and in a stack which is formed by stacking the plurality of electrodes with the separator sheet while the plurality of electrodes are spaced apart from each other and disposed in a row in the longitudinal direction of the separator sheet, a sealer which is disposed between the plurality of electrodes and applies heat and pressure to at least one of the corners of the electrodes or the edges of the electrodes.