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BATTERY PACK CONFIGURED TO BE CAPABLE OF SUPPLYING POWER TO A POWER TOOL

Resumen de: US2025132591A1

A battery pack configured to be capable of supplying power to a power tool. The battery pack includes a housing assembly; multiple cells disposed in the housing assembly; a first interface configured to be connectable to a first charging device and configured to be capable of supplying power to the power tool; a second interface configured to be connectable to a second charging device; and a power control module configured to be connected to the second interface. The power control module is used for changing the charge power and/or discharge power of the second interface according to the temperature of the battery pack.

TEMPERATURE SENSING MEMBER, BATTERY MODULE AND BATTERY PACK INCLUDING THE SAME

Resumen de: US2025132408A1

A temperature sensing member is located between two adjacent battery cells, and includes a main body part arranged in parallel to one surface of the battery cell, and a temperature measuring unit mounted on the main body part and measuring the temperature of the battery cell. The main body part has a plate shape. The temperature measuring unit is inserted into one side of the main body part.

BATTERY PACK WITH DOUBLE COVER

Resumen de: US2025132456A1

A battery pack with a double cover includes a plurality of battery modules; and a case accommodating the battery modules, the case includes the double cover disposed at an upper portion of the case, and the double cover includes a first lid disposed above the battery module and having a through hole; and a second lid above the first lid and spaced apart from the first lid.

TEST DEVICE AND METHOD FOR TESTING SEGMENTS FOR THE ENERGY CELL-PRODUCING INDUSTRY

Resumen de: US2025132407A1

Testing device for testing segments that are suitable for forming a cell stack for the energy cell producing industry, wherein:a conveying apparatus with a plurality of receiving portions is provided for receiving and transporting a segment in each case, whereinthe receiving portions are movable relative to a stationary part of the testing device by a movement of the conveying apparatus, characterized in thatthe receiving portions each comprise at least two contact surfaces for contacting, electrically and/or by signal, a segment received in the respective receiving portion, whereinat least two of the contact surfaces of one of the receiving portions can be connected to at least one measuring device by means of a switching matrix.

ELECTRICITY STORAGE PACK

Resumen de: US2025132451A1

A power storage pack includes: at least one power storage block including at least one power storage device including an exhaust valve; pack case accommodating the at least one power storage block and including an exhaust port; hollow member interposed between pack case and the at least one power storage block, a part of the hollow member facing the exhaust valve of the at least one power storage device; and a resin filler interposed between the at least one power storage device and hollow member. Hollow member includes opening and an outer surface any of which is connected to exhaust port of pack case.

ELECTROLYTE FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Resumen de: US2025132388A1

An electrolyte for a lithium secondary battery and a lithium secondary battery are disclosed. The electrolyte for a lithium secondary battery includes: a lithium salt; an organic solvent; and an additive, wherein the additive includes a compound represented by Formula 1.

SOLID-STATE ELECTROCHEMICAL CELL COMPONENTS AND RELATED SYSTEMS AND METHODS

Resumen de: US2025132395A1

An electrochemical cell comprises a first layer comprising a first plurality of particles, a second layer adjacent to the first layer comprising a second plurality of particles and an interface between the first layer and the second layer, wherein the interface comprises a gradient of the first plurality of particles and the second plurality of particles, and wherein the gradient lowers the interfacial resistance between the two layers.

SECONDARY BATTERY AND APPLICATION THEREOF

Resumen de: US2025132391A1

The present application belongs to the technical field of batteries, and particularly relates to a secondary battery. The secondary battery provided by the present application comprises a positive electrode plate, a negative electrode plate and electrolyte, wherein the electrolyte comprises an organic solvent, and the organic solvent comprises a cyclic ester solvent and a chain ester solvent; the secondary battery parameter satisfies Formula (1). The secondary battery has good dynamic performance at low temperature, and has good capacity retention rate and lower impedance under the low temperature condition by adjusting the electrolyte and the negative electrode plate and the combined action of the electrolyte and the negative electrode plate.

LITHIUM-ION SECONDARY BATTERY

Resumen de: US2025132392A1

A lithium-ion secondary battery having improved coulombic efficiency. A lithium ion secondary battery comprises, a negative electrode active material layer, a separator layer, and a positive electrode active material layer in the order mentioned, wherein the negative electrode active material layer comprises a silicon-based negative electrode active material, and wherein the negative electrode active material layer, the separator layer, and the positive electrode active material layer are impregnated with an electrolyte solution, wherein the electrolyte solution comprises an ionic liquid and a lithium ion, wherein the ionic liquid comprises a phosphonium ion and a bis(fluorosulfonyl)imide ion.

LOW CONCENTRATION ADDITIVES FOR IRON NEGATIVE ELECTRODES

Resumen de: US2025132320A1

According to an aspect, an electrochemical cell may include an electrolyte and an anode in the electrolyte, the anode including an iron-containing active material, at least one of the anode and the electrolyte including an additive reactive to inhibit hydrogen evolution in a charge state and in a resting state of the electrochemical cell, and the additive in a concentration greater than about 10 and less than about 10,000 atoms of additive per million atoms iron of the iron-containing active material.

BOX, BATTERY, AND ELECTRIC APPARATUS

Resumen de: US2025132442A1

A box, a battery, and an electric apparatus are provided. The box has an accommodating cavity for accommodating a battery cell, and a top surface facing away from the accommodating cavity; a first region, a second region, and a sealing region located in between are formed on the top surface (of the box. The sealing region surrounds the first region, the sealing region is used for mounting a sealing member, and the second region is constructed with multiple mounting portions, the battery being mounted on an external apparatus through the mounting portions to make the sealing member in contact with the external apparatus. A shortest distance between a geometric center of an orthographic projection of the mounting portion in the second region and an outer edge of the sealing region is 30 mm-200 mm.

WELDING SYSTEM

Resumen de: US2025132440A1

A battery casing includes a first portion including a first planar portion and a bottom portion and a second portion having a second planar portion, a first side portion, and a second side portion, the first portion and the second portion configured to be welded together at (i) a first butt joint extending along the first side portion to join the first side portion to the first planar portion and to the bottom portion at the first side portion, (ii) a second butt joint extending along the second planar portion to join the second planar portion to the bottom portion at the second planar portion, and (iii) a third butt joint extending along the second side portion to join the second side portion to the first planar portion and to the bottom portion at the second side portion.

MODULAR SHAREABLE BATTERY SYSTEM

Resumen de: US2025132443A1

Examples relate to vehicle battery systems comprising a base unit connectable to a vehicle's electrical system, a removable modular replaceable battery, and a secondary battery within the base unit. The base unit is configured to interchangeably use modular replaceable batteries of different chemistries. Control circuits optimize charging and discharging parameters based on battery chemistries. The secondary battery provides power when the modular battery is removed. The system includes thermal management, compatibility with lead-acid charging systems, and mobile base unit functionality. The modular battery can power external devices and can foreseeably store energy up to and beyond 1 kWh. The system operates at various voltages suitable for different vehicle types.

Composite Separator, Electrochemical Apparatus, and Terminal Device

Resumen de: US2025132461A1

A composite separator includes a base separator and a film covering a surface of the base separator, where the film is a porous film. The film includes a first material region, a second material region, and a third material region, and the second material region and the third material region are respectively disposed on two sides of the first material region, and both are connected to the first material region. A material of the first material region includes a polymer. Both a material of the second material region and a material of the third material region include inorganic particles, where a mass percentage of the inorganic particles in the second material region is 90% or more, and/or a mass percentage of the inorganic particles in the third material region is 90% or more.

ELECTROLYTIC SOLUTION FOR MAGNESIUM BATTERIES, METHOD FOR PREPARING THE SAME, AND MAGNESIUM BATTERIES

Resumen de: US2025132390A1

The present application provides an electrolytic solution for magnesium batteries, a method for preparing the same, and a magnesium battery, comprising a non-aqueous solvent and an electrolyte salt, wherein the non-aqueous solvent is selected from one or more of imidazole ionic liquids, pyrrole ionic liquids, piperidine ionic liquids, ether compounds, ester compounds, pyridine compounds, nitrile compounds, sulfone compounds, or ketone compounds; the electrolyte salt has a chemical formula MgmLinXo(HMDS)2m+m−oRp·Mq. The electrolytic solution for magnesium batteries provided by the present application is endowed with good stability, strong water resistance and impurity resistance, and excellent electrochemical performance under the mutual synergistic effect among the components, and excellent electrochemical performance under the mutual synergistic effect among the components, and at the same time, the electrolytic solution can promote reversible deposition-dissolution of magnesium, reduce the over-potential, inhibit formation of a passivation layer of magnesium salts on the surface of the anode, and increase the charging-discharging specific capacity and cycling stability of the magnesium battery.

SILICON COMPOSITE ANODE MATERIAL WITH CONTROLLED PARTICLE SIZE DISTRIBUTION, MANUFACTURING METHOD THEREOF, AND LITHIUM ION BATTERY CONTAINING THE SAME

Resumen de: US2025132321A1

The present invention relates to a silicon composite anode material with controlled particle size distribution, a manufacturing method thereof, and a lithium-ion battery containing the same. More specifically, the present invention relates to a silicon composite anode material with controlled particle size distribution, which exhibits stress relaxation of each particle through distribution of various particle sizes and thus prevents mechanical destruction even under a high-pressure condition during a calendering process, a manufacturing method thereof, and a lithium-ion battery containing the same. The silicon composite anode material comprises a graphite mixture; a silicon nanolayer coated on the graphite mixture; and a carbon coating layer coated on the silicon nanolayer.

AQUEOUS IODINE-BASED BATTERY BASED ON MULTI-ELECTRON TRANSFER

Resumen de: US2025132398A1

An aqueous iodine-based battery based on multi-electron transfer includes a positive electrode, a negative electrode, a current collector, an electrolyte, and a separator. A porous carbon felt is used as the electrode material on both sides of the positive and negative electrodes, and a polymer film is used as the membrane material. Both the positive and negative electrolytes are stored in the porous carbon felt electrodes. Both the positive and negative electrolytes are acidic mixed solutions containing I− and Cd−; during charging, I− at the positive electrode is charged to Cd(IO3)2, which realizes a electrochemical reaction of six-electron transfer, and the negative electrode involves the deposition of Cd− as a Cd metal; and the process is reversed during discharging. In order to improve the kinetics and reversibility of the multi-electron transfer process, additional additives are added to the solution to improve the electrochemical reversibility of the overall reaction.

Coating of Electrode Materials for Energy Storage Devices

Resumen de: US2025132318A1

Cathode materials, batteries, and methods of forming one or more electrodes for batteries are disclosed. In some embodiments, a coated lithium battery cathode material includes coated single crystalline primary particles, the coated single crystalline primary particles including single crystalline primary particles of a lithium transition metal oxide, a first sub-nanoscale lithium metal oxide coating on the single crystalline primary particles wherein the first sub-nanoscale lithium metal oxide is less than 1 nm thick, and a carbon coating disposed on the first sub-nanoscale lithium metal oxide coating to form coated single crystalline primary particles.

BATTERY MODULE AND METHOD FOR MANUFACTURING THE SAME

Resumen de: US2025132432A1

Provided is a battery module including a battery cell assembly (100) that comprises a reference plate (110) which has a predetermined thickness in a third direction, and a first stack (120) and a second stack (130) which are respectively coupled to a first side surface and a second side surface of the reference plate (110) in the third direction and respectively comprise a plurality of battery cells (C) stacked and coupled to each other in the third direction; and a frame (200) with an inner space (S) in which the battery cell assembly (100) is inserted and accommodated (100). The inner space (S) comprises a predetermined portion (P1) accommodating the reference plate (110), and one side portion (P2) and the other side portion (P3) respectively corresponding to spaces at one side and the other side of the predetermined portion (P1) in the third direction with respect to the predetermined portion (P1) and respectively accommodating the first stack (120) and the second stack (130). A position of the predetermined portion (P1) is determined based on lengths of the first stack (120) and the second stack (130) in the third direction. Thus, the battery module (10) that has a simple configuration and ensures improvement in safety and reliability can be manufactured readily and rapidly without incurring large costs.

VENTING DEVICE AND BATTERY PACK WITH THE SAME

Resumen de: US2025132450A1

A venting device includes a cover positioned at one side of a wall, the wall having a vent hole through which a gas is flowable, and the cover covering the vent hole, a connection pin connected to the cover, the connection pin being configured to pass through the wall, and a hook connected to the connection pin, the connection pin being between the hook and the cover, and the hook being configured to pass through the wall to be positioned at the other side of the wall and to anchor the cover and the connection pin to the wall.

BATTERY SYSTEM, COOLER AND METHOD FOR MONITORING A BATTERY SYSTEM

Resumen de: US2025132436A1

A battery system includes: a battery pack including a housing and a plurality of battery cells accommodated within the housing; an underbody protection structure; a cooler connected to and arranged between the battery cells and the underbody protection structure; and a pressure detection device. The cooler includes a cooling channel and a pressure detection channel separated from the cooling channel, and both the cooling channel and the pressure detection channel being arranged inside the cooler. The pressure detection device includes a pressure sensor connected to the pressure detection channel and configured to detect an underbody contact or impact event by monitoring a pressure in the pressure detection channel.

POSITIVE ELECTRODE ACTIVE MATERIAL AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME

Resumen de: US2025132328A1

The present invention relates to a positive electrode active material and a lithium secondary battery including the same, and more particularly, to a bimodal-type positive electrode active material, in which low energy density per unit volume and low stability of an overlithiated lithium manganese-based oxide are improved, and a lithium secondary battery including the same.

POSITIVE ELECTRODE MATERIAL FOR SECONDARY BATTERIES

Resumen de: US2025132327A1

A positive electrode material for a secondary battery includes a secondary particle that is an aggregate of a plurality of primary particles. The primary particles contain a first metal oxide as a positive electrode active material. The primary particles include first primary particles disposed at a surface of the secondary particle, second primary particles disposed inside the secondary particle in contact with the first primary particles, and third primary particles disposed inside the secondary particle not in contact with the first primary particles. The positive electrode material further includes a second metal oxide attached at least to surfaces of the first primary particles and the second primary particles and having a composition different from the first metal oxide. The second metal oxide is not attached to surfaces of the third primary particles, or an amount attached thereto is smaller than an amount attached to the second primary particles.

Ferroelectric Separators for Suppressing Dendrites Growth in Rechargeable Batteries

Resumen de: US2025132399A1

A mesoporous piezoelectric or ferroelectric (FE) Al2O3/P(VDF-TrFE) membrane can actively suppress anode dendrites formation when used as a separator in rechargeable aqueous Zn-ion batteries. When the positive polarization side of the FE separator faces the metal anode during charging, the FE separator can reverse the local energetics for Zn2+ reduction at the protrusion area and deplete incoming Zn2+ ions to the flat region. As a result, the symmetric Zn—Zn cell with this P+ separator can achieve a substantially higher cycling stability.

ADDITIVE FOR LITHIUM RECHARGEABLE BATTERY AND LITHIUM RECHARGEABLE BATTERY INCLUDING THE SAME

Nº publicación: US2025132401A1 24/04/2025

Solicitante:

SAMSUNG SDI CO LTD [KR]
SOGANG UNIV RESEARCH & BUSINESS DEVELOPMENT FOUNDATION [KR]
SAMSUNG SDI CO., LTD,
SOGANG UNIVERSITY RESEARCH & BUSINESS DEVELOPMENT FOUNDATION