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RACK ASSEMBLY, BATTERY FRAME, AND ENERGY STORAGE CONTAINER

Resumen de: WO2025161201A1

A rack assembly, a battery frame (10), and an energy storage container. First frames (20) in the rack assembly are used for supporting battery packs (50). Multiple first frames (20) are distributed in multiple layers of battery storage areas (110), and, multiple first frames (20) in the same battery storage area (110) are arranged into multiple columns and multiple rows. Two adjacent first frames (20) in the same row are staggeredly arranged, so that two adjacent battery packs (50) in the same row are staggeredly arranged, thus not requiring modification to the structure of the battery packs (50), and facilitating adaptation to a standard container.

INFLATION AND SUCTION PUMP WITH BUILT-IN LITHIUM BATTERY

Resumen de: WO2025161059A1

An inflation and suction pump with a built-in lithium battery, the pump comprising an air pump housing (1), with a brushless electric motor module (2), a one-way valve (3), a battery module (4) and a valve jacking device (5) being provided inside the air pump housing (1), and the air pump housing (1) being provided with a first air hole (11) and a second air hole (12), wherein the brushless electric motor module (2) is arranged in an air duct; the battery module (4) is connected to the brushless electric motor module (2); during inflation, the brushless electric motor module (2) rotates forward, such that air enters from the first air hole (11) and is discharged from the second air hole (12); and during exhaust, the brushless electric motor module (2) rotates backward, such that air enters from the second air hole (12) and is discharged from the first air hole (11). The inflation and suction pump can achieve the functions of inflation and exhaust, without needing to switch the air duct.

BATTERY AND ELECTRICAL DEVICE

Resumen de: WO2025160762A1

Embodiments of the present application provide a battery and an electrical device. The battery comprises: a battery cell, the battery cell being a wound core and comprising a positive electrode plate, a negative electrode plate, and a separator, which are stacked together, and the battery cell being provided with a first surface and a second surface opposite to each other in the direction of thickness; a reference electrode, comprising a third current collector and an electrode material layer arranged on a side surface of the third current collector, the reference electrode being arranged on the first surface or the second surface of the battery cell, and the reference electrode being used to form a test loop together with the positive electrode plate and/or the negative electrode plate to test electrical parameters of the battery; and an isolator arranged between the battery cell and the reference electrode. In the battery, the reference electrode is arranged on a surface of the battery cell, such that the reaction states of the positive and negative electrode plates inside the battery can be monitored in real time with high accuracy, prolonging the service life of the battery and improving the safety performance of the battery. The reference electrode will not affect the original capacity and charging and discharging performance of the battery, and the preparation process of the battery is simple and highly compatible with existing commercial production processes and equipm

NON-AQUEOUS ELECTROLYTIC SOLUTION AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

Resumen de: WO2025164422A1

A non-aqueous electrolytic solution according to the present disclosure includes a non-aqueous solvent, a phosphorus-containing compound, and two or more electrolyte salts dissolved in the non-aqueous solvent. The two or more electrolyte salts include a second lithium salt and a first lithium salt having an oxalate structure. The first lithium salt may include at least one selected from the group consisting of LiFOB, LiBOB, LiTFOP, and LiDOBFP.

BATTERY

Resumen de: WO2025164423A1

According to the present invention, a positive electrode 23 has an antifluorite crystal structure and contains lithium oxide in which a transition metal is solid-solved, and an electrolyte solution 29 contains an additive. The additive includes at least one substance that is selected from the group consisting of a phosphoric acid ester, a sulfonic acid ester, a cyclic carbonic acid ester, a benzene derivative, and a radical scavenger. The concentration of the additive in the electrolyte solution is, for example, 0.01 mol/liter to 2.0 mol/liter inclusive.

BATTERY MODULE COOLING STRUCTURE

Resumen de: WO2025163801A1

This battery module cooling structure comprises: a battery pack case (20) that has an internal space (20A) in which battery modules (30) are arranged side by side in a first direction, an air feed port (45B) to the internal space (20A), and an air discharge port (46C) to the internal space (20A); and partition parts (90) each of which extends in a horizontal second direction that intersects with the first direction, is disposed between adjacent battery modules (30), and is provided above on an inner bottom surface (51) of the battery pack case (20) in an upright manner so as to partition a lower space (20L). The partition parts (90) have a longer distance from one end on the side closer to the feed port (45B) in the second direction to one end of the internal space (20A) on the side closer to the feed port (45B) in the second direction as the partition parts (90) are disposed closer to the feed port (45B) with respect to the discharge port (46C) in the first direction.

NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

Resumen de: WO2025164401A1

Provided is a nonaqueous electrolyte secondary battery which has a reduced risk of a short circuit. A nonaqueous electrolyte secondary battery according to one embodiment of the present disclosure comprises: an electrode body in which a first electrode and a second electrode, which are strip-shaped and have mutually different polarities, are wound in a longitudinal direction; and an exterior body. On the surfaces of the inside and the outside of the winding of the first electrode, collector exposed parts in which a current collector is exposed are formed in a position overlapping the first electrode in the thickness direction thereof. A first protective tape is disposed on the inside of the winding of the first electrode so as to cover the collector exposed part, and a second protective tape is disposed on the outside of the winding of the first electrode so as to cover the collector exposed part. The first protective tape has a base material layer and an adhesive layer formed on the surface of the base material layer, and the second protective tape has a base material layer but does not have an adhesive layer. The first protective tape and the second protective tape include protruding parts protruding from the current collector in the lateral direction of the first electrode and are bonded to each in the protruding parts.

BATTERY AND ELECTRIC DEVICE

Resumen de: WO2025161687A1

The present application discloses a battery and an electric device. The battery comprises battery cells and a heat exchange assembly, a plurality of battery cells are provided and the plurality of battery cells are arranged in a first direction, and the first direction is the length direction or the width direction of the battery. The heat exchange assembly comprises a heat exchange tube, and the heat exchange tube comprises a first heat exchange section, a second heat exchange section, a connecting section, a liquid inlet, and a liquid outlet. The liquid inlet is communicated with the connecting section by means of the first heat exchange section, the liquid outlet is communicated with the connecting section by means of the second heat exchange section, and the first heat exchange section and the second heat exchange section are arranged in parallel or in an intersecting manner. Each battery cell is separately thermally conductively connected to the first heat exchange section and the second heat exchange section. During use, each battery cell separately exchanges heat with the first heat exchange section and the second heat exchange section, the first heat exchange section is configured to be intersecting or in parallel, and the temperature difference between the first heat exchange section and the second heat exchange section on thermally conductive connection positions of each battery cell is minimized, mitigating the problem of non-uniform temperature distribution among

BATTERY COVER PLATE, BATTERY ENCAPSULATING MEMBER AND BATTERY

Resumen de: WO2025161651A1

A battery cover plate, a battery encapsulating member and a battery. The battery cover plate comprises a first cover plate (1) and a terminal post block (2), wherein the terminal post block (2) is connected to the first cover plate (1). The terminal post block (2) comprises a second cover plate (21), an insulating layer and terminal posts (25), wherein the insulating layer and the second cover plate (21) are stacked; first through holes (211) are provided in the second cover plate (21); the terminal posts (25) are inserted into the first through holes (211); and the insulating layer isolates the terminal posts (25) from the second cover plate (21). The cover plate has a simple structure, few structural members, a simple manufacturing process and relatively low manufacturing costs. By means of splitting a conventional cover plate structure into the first cover plate (1) and the terminal post block (2), when tabs (6) are welded to connecting sheets of the terminal posts (25), the tabs (6) need to extend out by a smaller length, that is, the overall length of the tabs (6) is smaller, and spaces needing to be reserved inside battery cells (5) for bending the tabs (6) are smaller, such that the volume of a jelly roll inside each battery cell (5) can be increased, the battery cells (5) have higher internal-space utilization rates, and the volumetric energy density is improved by 0.5%-5%.

BATTERY AND ELECTRIC DEVICE

Resumen de: WO2025161454A1

The present application is applicable in the technical field of batteries (100). Provided are a battery (100) and an electric device. The battery (100) comprises battery cells (10), a case (20), and a thermal management assembly (30). The case (20) is provided with a first wall (211), and the first wall (211) comprises a first sub-wall (2111) and a second sub-wall (2112). The thermal management assembly (30) comprises a first part (30a) and a second part (30b), wherein the first part (30a) is provided with a first flow channel (301a); the second part (30b) is provided with a second flow channel (301b); and the distance between the battery cells (10) and the side of the first flow channel (301a) close to the battery cells (10) is less than the distance between the battery cells (10) and the side of the second flow channel (301b) close to the battery cells (10), and/or the cross-sectional area of the first flow channel (301a) is greater than the cross-sectional area of the second flow channel (301b). In this way, the battery cells (10) at different positions can be subjected to partitioned thermal management, such that the battery (100) has a balanced temperature.

METHOD AND APPARATUS FOR MANUFACTURING BATTERY, AND CONTROL SYSTEM

Resumen de: WO2025160909A1

Provided in the embodiments of the present application are a method and apparatus for manufacturing a battery, and a control system. The method comprises: performing formation treatment on a battery cell; performing a self-discharge rate (K-value) test and/or an aging test on the battery cell which has undergone the formation treatment, such that the voltage of the battery cell is stable; performing a direct-current resistance test and a capacity test on the battery cell which has undergone the self-discharge rate (K-value) test and/or the aging test; performing a capacity test on the battery cell which has undergone the direct-current resistance test; and performing grading on the battery cell on the basis of a result of the direct-current resistance test and/or a result of the capacity test. The method and apparatus, and the control system in the embodiments of the present application can prolong the service life of a product.

ELECTROLYTE ADDITIVE FOR HIGH PERFORMANCE IODINE OR BROMINE BASED ELECTROCHEMICAL DEVICE

Resumen de: WO2025160627A1

The disclosure relates to an ionic liquid additive that is useful in an electrolyte solution for an electrochemical device. The ionic liquid additive is capable of interacting with polyiodide and/or polybromide species to mitigate shuttle effect for the electrochemical device and stabilise the positive electrode and the negative electrode of the electrochemical device.

METHODS FOR PRODUCING ELECTROLYTIC SOLUTIONS FOR ENERGY ACCUMULATORS

Resumen de: WO2025160641A1

The present invention generally pertains to the technological field of industrial chemistry and more specifically relates to a set of methods for the industrial production of electrolytes for fuel cells, cells, batteries, capacitors and accumulators or any energy storage components that supply electrical current produced chemically by means of ionisation. This electrolytic method will replace the salt bridges in chemical energy accumulators, which connect ions and electrons between the negative anode and positive cathode, improving performance and efficiency. In addition, it can be made from 100% organic materials, such as fruit or acetic acids and calcium carbonate, extracted from foods. A 100% organic and biodegradable battery can be produced.

LITHIUM-ION BATTERY

Resumen de: WO2025160825A1

A lithium-ion battery. The lithium-ion battery comprises a positive electrode sheet and an electrolyte solution, wherein the positive electrode sheet comprises a positive electrode current collector, a positive electrode active material layer located on one side or two sides of the positive electrode current collector, and a primer layer located between the positive electrode current collector and the positive electrode active material layer, the primer layer having a weight loss rate of X% at 25-800°C; the electrolyte solution comprises propylene carbonate and propyl propionate, and based on the total weight of the electrolyte solution, the weight content of propylene carbonate is B wt%, and the weight content of propyl propionate is C wt%; and the lithium-ion battery satisfies: 5≤(B+C)/X≤30. The lithium-ion battery has the advantages of both high safety performance and good cycle performance.

AUTOMATIC CUTTING AND SHEET-PLACING DEVICE

Resumen de: WO2025161100A1

The present application relates to the technical field of sheet-placing devices for lithium battery winding machines. Disclosed is an automatic cutting and sheet-placing device, comprising material roll conveying mechanisms and material loading and positioning mechanisms (43), wherein a material storage mechanism (38), a material brushing mechanism (39), a material pulling traction mechanism (40), a material cutting mechanism (41) and a sheet suction mechanism (42) are disposed in sequence between each material roll conveying mechanism and material loading and positioning mechanism (43). The material pulling traction mechanism (40) is used for traction pulling of a material roll; specifically, by starting a pressing roller cylinder (16), a pressing block (14) is driven to descend until same presses against a traction pulling wheel (33), so as to pull the material roll, thus releasing the material; the material passes through the material storage mechanism (38), and then through the material brushing mechanism (39), where bristles perform a powder brushing treatment on the material; then the material passes through the material cutting mechanism (41), and a driving cylinder (18) drives a cutter (20) to descend until the material is cut off; a suction cup (25) is driven by a linear module and a lifting module to hold the material by suction and place the material on a supporting plate (35); and a material pushing cylinder drives a material pushing block (36) to push and displac

CATHODE MATERIAL AND METHOD OF FORMING IT

Resumen de: WO2025166013A2

A composite powder is useful for making cathodes and is comprised of cathode material particles coated by carbon and a stabilizer such as carboxymethylcellulose or salt thereof. The composite powder may be made by a milling a slurry comprised of a polar solvent (e.g., water) having therein cathode material particles, carbon particles and a stabilizer to form a milled mixture, the cathode material particle's specific surface area in m2/g being at least an order magnitude less than the carbon particles' specific surface area in m2/g, and removing the solvent to form a dried mixture comprised of secondary particles of milled disordered rocksalt particles coated with milled carbon particles and stabilizer.

ELECTROCHEMICAL EXTRACTION OF LITHIUM

Resumen de: WO2025165823A1

Disclosed herein is an apparatus for separating lithium ions from solution. The apparatus includes a first lithium selective reactor. The first lithium selective reactor includes a lithium selective electrode configured to absorb lithium ions from the solution, a separator, and a counter electrode. The apparatus further includes a lithium rejective reactor. The lithium rejective reactor includes a lithium rejective electrode, a separator, and a counter electrode.

HALIDE-BASED SOLID ELECTROLYTES AND BATTERIES, AND METHODS OF MAKING AND USE THEREOF

Resumen de: WO2025165715A1

Disclosed herein are halide-based solid electrolytes with high ionic conductivity for all-solid-state sodium ion batteries. For example, disclosed herein are solid electrolytes comprising: ABCλ-2x-zDx+y, wherein: A is chosen from Li, Na, K, Mg, Ca, Zn, Al, In, Fe, and combinations thereof; B is chosen from Ca, Mg, Zn, In, V, Nb, Ta, Mn, Ti, Zr, Hf, Fe, Co, Ni, Al, Ga, and combinations thereof; C is chosen from F, Cl, Br, I, and combinations thereof; D is chosen from O, S, Se, Te, and combinations thereof; λ is an integer chosen from 4, 5, and 6, such that the solid electrolyte is charge neutral; 0 < x < 1; 0 < z < 2; and 0 < y < 1.

BATTERY MOUNTING STRUCTURE

Resumen de: WO2025163795A1

A battery mounting structure comprises: a center module (15) which is among a plurality of battery modules (30) that are disposed side by side in the vehicle width direction of a vehicle in an internal space (20A) of a battery pack case (20) mounted in the vehicle and that are of equal length in the vertical direction of the vehicle, and which is disposed in a center part in the vehicle width direction; and side modules (16) which are among the plurality of battery modules (30), which are respectively disposed at both ends in the vehicle width direction, and which are disposed so as to protrude upward with respect to the center module (15).

CYLINDRICAL SECONDARY BATTERY

Resumen de: WO2025164364A1

A positive electrode (11) has one or more positive-electrode core exposed parts which are each adjacent to a positive electrode mixture layer in the positive electrode width direction and, in each of which, a positive electrode core is exposed. Positive electrode tabs (20) are joined to the positive-electrode core exposed parts one by one. At least a portion of a negative-electrode core body exposed part (43) comes into contact with the inner circumferential surface of an exterior can. A tape is attached to the outermost circumferential surface of an electrode body (14) so as to extend across at least a portion of a winding outer end (12a) of a negative electrode (12). The winding outer end (12a) of the negative electrode (12) is positioned outside a winding outer end (11a) of the positive electrode (11) by a length exceeding one turn.

BATTERY ANALYSIS SYSTEM, BATTERY ANALYSIS METHOD, AND BATTERY ANALYSIS PROGRAM

Resumen de: WO2025164179A1

A Q-OCV curve generating unit (112) extracts voltage data that can be regarded as an open circuit voltage (OCV), on the basis of battery data for a fixed period, calculates a capacity Q when the extracted voltage data were measured, and generates a Q-OCV curve. An inflection point extracting unit (113) extracts an inflection point of the Q-OCV curve. A deterioration estimating unit (115) estimates deterioration of a secondary battery on the basis of a plurality of the inflection points extracted respectively from a plurality of the Q-OCV curves generated on the basis of the battery data for each of a plurality of fixed periods.

ELECTRIC CIRCUIT AND PROGRAM FOR BATTERY TEMPERATURE RISE PROCESSING

Resumen de: WO2025164066A1

According to the present invention, battery temperature rise processing is executed in an electric circuit to which electric power is transferred while being stepped down in a specific electric power transfer direction. The electric circuit comprises a first battery, a second battery, a three-phase motor, an inverter circuit, and a control circuit. The battery temperature rise processing includes a voltage difference adjustment process for adjusting a voltage difference that is obtained by subtracting an output voltage of the second battery from an output voltage of the first battery so that the voltage difference becomes equal to or greater than a reference value, and a periodic electric power transfer process for causing the inverter circuit and a converter circuit that is configured from the windings of the three-phase motor to alternately and repeatedly execute a first electric power transfer operation in which electric power is transferred from the second battery to the first battery while being stepped up and a second electric power transfer operation in which electric power is transferred from the first battery to the second battery while being stepped down. The amplitude of the voltage difference in the periodic electric power transfer process is less than the reference value.

NEGATIVE ELECTRODE ACTIVE PARTICLE AND PREPARATION METHOD THEREFOR, NEGATIVE ELECTRODE SHEET AND BATTERY

Resumen de: WO2025161611A1

Provided are a negative electrode active particle and a preparation method therefor, a negative electrode sheet and a battery. Provided in the embodiments is a negative electrode active particle, which has a plurality of pores, wherein the length-diameter ratio α of the pores falls within the following range: 1≤α≤8. When the negative electrode active particle provided by the embodiments is applied to a battery, the battery is enabled to have a relatively high cycling capacity retention rate.

BATTERY AND ELECTRICAL DEVICE

Resumen de: WO2025161313A1

A battery (200) and an electrical device (100), which apply to the technical field of traction batteries. The battery comprises: a housing (300), which is configured to accommodate battery cells (30); at least two fixing beams (71), wherein the at least two fixing beams are spaced apart in the housing, a space for accommodating the battery cells being formed between every two adjacent fixing beams; fixing seats (72) arranged on the fixing beams; and limiting members (73) which are connected to the fixing seats on different fixing beams. Connecting the limiting members to different fixing beams enables deformation of the fixing beams to be suppressed by means of the limiting members, thus enhancing the strength of the fixing beams, and reducing a degree of deformation of the fixing beams along with the expansion of the battery cells. By means of the provision of the fixing seats, the strength at the joints between the limiting members and the fixing beams is enhanced to reduce failures such as breakage at the joints between the limiting members and the fixing beams; thus, the strength of the fixing beams is further enhanced, thereby better suppressing the expansion of the battery cells, improving the performance of the battery, and reducing potential safety hazards.

BATTERY TRAY, BATTERY PACK AND ELECTRIC DEVICE

Nº publicación: WO2025161421A1 07/08/2025

Solicitante:

BYD COMPANY LTD [CN]
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Resumen de: WO2025161421A1

A battery tray (100), a battery pack and an electric device. The battery tray (100) comprises an annular frame (110), a support portion (120) provided at the bottom of the annular frame (110), and a bottom plate (200); a first adhesive tank (121) and a second adhesive tank (122) are formed in the support portion (120); the first adhesive tank (121) is configured to accommodate a first adhesive (300), the second adhesive tank (122) is configured to accommodate a second adhesive (400), and the second adhesive tank (122) is annular and is provided along the contour of the support portion (120); and the bottom plate (200) is connected to the support portion (120) in a sealed manner by means of the first adhesive (300) provided in the first adhesive tank (121) and the second adhesive (400) provided in the second adhesive tank (122). The battery tray (100) can improve the sealing level between the bottom plate (200) and the support portion (120), and meet various working conditions of a battery pack.