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1000
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Updated on
16/07/2026 [07:55:00]
Results 450 to 475 of 1000
Absstract of: WO2026145176A1
Disclosed in the present application are a secondary battery, a battery pack and an electric device. The secondary battery comprises a case, an electrode assembly and a top cover assembly, wherein the case has an accommodating cavity; the electrode assembly is arranged in the accommodating cavity; the top cover assembly comprises a top cover plate and a lower insulating member; the top cover plate is connected to the case and covers and seals the accommodating cavity, and the top cover plate has a first liquid injection hole; the lower insulating member is connected to the side of the top cover plate facing the electrode assembly, and the lower insulating member comprises a body, a side plate and a barrier plate; the body is connected to the top cover plate, and the body is provided with a second liquid injection hole in communication with the first liquid injection hole; the side plate is connected to the side of the body away from the top cover plate; the barrier plate is connected to the side plate and is spaced between the second liquid injection hole and the electrode assembly; the side plate has a liquid outlet, and the liquid outlet is in communication with the second liquid injection hole; and the overflow area of the liquid outlet is S1, the outer surface area of the side plate is S2, and the overflow area and the outer surface area satisfy 0.06≤S1/S2≤2. The present application can prevent a separator from folding over and improve the electrolyte injection effici
Absstract of: WO2026144227A1
Disclosed in the present application are a cell stack cooling device and a battery module. The cell stack cooling device comprises a box, and an upper air guide member and a lower air guide member which are arranged opposite each other inside the box, wherein an accommodating space is formed inside the box, and the accommodating space is configured to hold cells; the upper air guide member is arranged in the accommodating space, an upper air duct is formed between the upper air guide member and the box, the upper air guide member is provided with an upper air opening, and the upper air duct, the upper air opening and the accommodating space are sequentially in communication with each other; and the lower air guide member is arranged on the side of the accommodating space opposite the upper air guide member, a lower air duct is formed between the lower air guide member and the box, the lower air guide member is provided with a lower air opening, the lower air duct, the lower air opening and the accommodating space are sequentially in communication with each other, an air inlet and an air outlet in communication with the outside are respectively formed at two opposite ends of the accommodating space, and the upper air duct and the lower air duct are both in communication with the air inlet.
Absstract of: WO2026143748A1
The present application relates to the technical field of batteries and discloses a cell structure and a battery. The cell structure comprises an anode sheet and a cathode sheet. The anode sheet comprises an anode foil and a plurality of anode tabs. The anode tabs are integrally connected to the anode foil, and the anode tabs are stacked in the direction of thickness of the cell structure. The cathode sheet comprises a cathode foil, a cathode tab and a coating layer. The cathode tab is welded to the cathode foil, the coating layer is disposed on at least one side of the cathode foil in the direction of thickness, and the width of the coating layer is equal to the width of the cathode foil. With the cell structure of the present application, most of the fast-charging performance of a battery can be retained, while the energy density of the battery is improved and the occupation of the internal space of the battery by tabs is reduced.
Absstract of: WO2026145787A1
The present application relates to a charging control circuit, system and device. The charging control circuit includes a current detection module, a comparator module and a main control module, wherein a charging current is detected by means of the current detection module, and a detection signal is output to the comparator module, so as to process the detection signal by means of the comparator module to output, to the main control module, a control signal corresponding to the charging current, and then the control signal is detected by means of the main control module, so as to determine, on the basis of a detection result, whether to enable a delay function; and if the delay function is enabled, when a delay duration reaches a preset duration threshold, a control operation corresponding to a re-detected control signal is determined, and in response to the control operation, the work of a heat dissipation apparatus is controlled on the basis of the control operation after a delay for a certain period of time, thereby realizing the intelligent control over charging heat dissipation, and realizing the automated control over charging heat dissipation, such that the power consumption of a charging product can be effectively reduced, and the user experience is improved.
Absstract of: WO2026145347A1
The embodiments of the present application relate to the technical field of batteries. Specifically disclosed are a battery cell and a battery pack. The battery cell comprises: a casing provided with an accommodating cavity; an electrode assembly arranged in the accommodating cavity; a top cover connected to one side of the casing in a first direction and covering and sealing the accommodating cavity, wherein the top cover is provided with a liquid injection hole; and an insulating member, the insulating member comprising an insulating main body and a plurality of insulating main body blocking portions, wherein the insulating main body is connected to the side of the top cover that is close to the electrode assembly, the insulating main body is provided with a through hole, the through hole has a hole wall, the through hole is in communication with the liquid injection hole, the plurality of blocking portions are all connected to the hole wall, and in a radial direction, the blocking portions extend along the hole wall in a direction towards the center of the through hole. According to the present application, a short circuit of the battery cell caused by a tab of the electrode assembly extending into the through hole and coming into contact with the top cover is avoided, thereby reducing the risk of a short circuit between the electrode assembly and the top cover, and ensuring the safety performance of the battery cell.
Absstract of: WO2026144821A1
Disclosed in the present application are a battery cell sampling assembly, an integrated busbar, and a battery pack. The battery cell sampling assembly comprises a flexible printed circuit, and a temperature collection module and a voltage collection module that are integrated on the flexible printed circuit. The flexible printed circuit comprises a series circuit and an antenna module, wherein the series circuit is electrically connected to the temperature collection module and the voltage collection module; and the antenna module is spaced apart from the series circuit, is in communication connection with the temperature collection module and the voltage collection module, and is configured to transmit sampling signals. That is, in the present application, the temperature collection module, the voltage collection module, and the antenna module are integrally mounted on the flexible printed circuit, so that integration is achieved, and the number of components and the complexity of circuits can be reduced, thereby reducing material costs and assembly costs, and also helping reduce space occupation, and further reducing overall costs.
Absstract of: WO2026144195A1
The present application relates to a connection structure for a battery and a circuit board, comprising a control circuit board and a battery, the battery being electrically connected to the control circuit board. A positive electrode conductive portion and a negative electrode conductive portion are provided on a board surface on one side of the control circuit board; a conductive spring extending vertically upwards is connected to the negative electrode conductive portion, the conductive spring comprising a connection end, a spring end, and a vertical rod located between the connection end and the spring end, and the connection end being connected to the negative electrode conductive portion; a positive electrode of the battery abuts against the positive electrode conductive portion, and a negative electrode of the battery abuts against the spring end; the battery is vertically arranged between the positive electrode conductive portion and the spring end. In the present application, by providing the conductive spring extending vertically upwards, the conductive positive electrode and the conductive negative electrode of the control circuit board are arranged at the same end; using the same-end battery arrangement mode can reduce the occupation of an internal structure, eliminates cumbersome wire connection, and reduces the overall volume; in addition, when a battery is mounted, it is easier to distinguish a positive electrode and a negative electrode, thereby facilitating t
Absstract of: WO2026144620A1
The present application discloses a battery pack and an electrical device. The battery pack has a first direction and a second direction intersecting each other, and comprises a case, a plurality of electrode assemblies, and an adapter circuit board; the case is provided with an accommodating cavity; the plurality of electrode assemblies are arranged in the first direction and are arranged in the accommodating cavity; the electrode assemblies comprise battery cells and tabs that are conductively connected, and the tabs of the plurality of electrode assemblies are arranged in the first direction; the adapter circuit board comprises a board body and a plurality of first pads arranged at intervals in the first direction, the board body is provided with a plurality of first channels, and the first channels pass through the board body in the second direction; the first pads are arranged on the side of the board body away from the battery cells in the second direction and are connected to the board body; the plurality of first pads and the plurality of first channels are alternately arranged in the first direction; and at least two adjacent tabs pass through one first channel and are conductively connected to one first pad. The present application helps to simplify the structure of battery packs, improve the degree of integration, and reduce the risk of short circuits.
Absstract of: WO2026144837A1
The present application relates to the technical field of batteries, and discloses a battery cell and a battery pack. An insulating member of said battery cell has at least two protruding flow guide ribs protruding from the side facing away from a top cover plate. The protruding flow guide ribs are spaced apart along the outer periphery of a second liquid injection hole. The protruding flow guide ribs can improve the structural strength of the area around the second liquid injection hole and reduce the risk of deformation of the insulating member. Furthermore, in the radial direction of the second liquid injection hole, the protruding flow guide ribs are recessed in a direction away from the second liquid injection hole. A flow guide channel in communication with the second liquid injection hole is formed between each two adjacent protruding flow guide ribs. The flow guide channel can have the effect of guiding an electrolyte during injection of the electrolyte from the second liquid injection hole, thereby ensuring liquid injection efficiency. In addition, the protruding guide ribs are spaced apart from the second injection hole in the radial direction of the second liquid injection hole, which can reduce the risk of contact between an electrode assembly and the top cover plate, that is, the risk of a short circuit between the electrode assembly and the top cover plate can be reduced.
Absstract of: WO2026145175A1
The present application discloses a secondary battery, a battery pack, and an electrical apparatus. The secondary battery has a first direction and a second direction intersecting each other, and comprises a top cover assembly. The top cover assembly comprises a top cover plate and a lower insulating member. The top cover plate is provided with a first liquid injection hole. The lower insulating member comprises a body, a side plate, a baffle, and a partition portion. The body is connected to the top cover plate. The body is provided with a second liquid injection hole in communication with the first liquid injection hole, and the first liquid injection hole and a part of the top cover plate are exposed from the second liquid injection hole. A side plate is provided with a liquid outlet in communication with the second liquid injection hole. The partition portion is connected to the body and arranged opposite to the liquid outlet. The baffle is connected to the side plate and spaced between the top cover plate and an electrode assembly. The orthographic projection of the baffle on the top cover plate covers the first liquid injection hole. The partition portion is spaced between the top cover plate and the electrode assembly. In the first direction, the size of the baffle is a, and the size of the partition portion is b, satisfying: 0.05≤b/a≤11. The present application can prevent a separator from folding and prevent short circuits caused by contact between a tab and the
Absstract of: WO2026145947A1
The present application discloses an on-board charger housing, an on-board charger, and a new energy vehicle. The on-board charger housing includes a body (100), a fluid channel (210, 220), and an encapsulation assembly (300). The fluid channel (210, 220) is formed on the body (100) and includes a first channel (210) and a second channel (220) that are communicated with each other. The first channel (210) is of a rotary structure and is disposed at a middle location along a height direction of the body (100). One end of the second channel (220) is communicated with the first channel (210), and the other end of the second channel (220) is communicated with an external environment of the body (100). The encapsulation assembly (300) is disposed in the second channel (220), and a distance between the end of the encapsulation assembly (300) facing the first channel and the first channel (210) is less than a preset threshold. In a scheme of the present application, by disposing the encapsulation assembly (300) as including a first encapsulation member (310) and a sealing member (320), firstly the sealing member (310) is sleeved on the first encapsulation member (310), then the first encapsulation member (310) is inserted into the second channel (220), and the sealing member (320) is compressed with the first encapsulation member (310) and the second channel (220) to achieve sealing and prevent leakage.
Absstract of: WO2026145836A1
Provided are a housing assembly, a power storage apparatus, and an electric device. The housing assembly comprises a housing and an electrical connector that are fixedly connected to each other. The electrical connector comprises a first portion, a second portion, and a third portion that are sequentially arranged in the length direction thereof. At least part of the first portion is located in an external space of the housing, and at least part of the third portion is located in an internal space of the housing. A wall of the housing is provided with a channel extending from the internal space to the external space. The second portion is embedded within the channel, and an inner surface of the channel covers an outer surface of the second portion. A bonding body is disposed between the outer surface of the second portion and the inner surface of the channel; the bonding body is bonded to the outer surface of the second portion and the inner surface of the channel. The bonding body bonded to the outer surface of the second portion and the inner surface of the channel utilizes its own elastic deformation to compensate for a difference in degree of deformation between the electrical connector and the housing, preventing the formation of micro gaps, and thereby preventing the formation of leakage paths, improving the sealing performance of the power storage apparatus.
Absstract of: WO2026145049A1
A cover plate assembly, a battery, and a battery module. The cover plate assembly comprises a terminal, a cover plate, and a busbar disc. The busbar disc comprises a top wall and a bottom wall. The top wall comprises a first portion and a second portion connected to each other. The bottom wall comprises a third portion and a fourth portion connected to each other. The third portion and a battery cell are spaced apart. The first portion is connected to the cover plate.
Absstract of: WO2026144424A1
The present application relates to the technical field of dry-process electrode manufacturing, and in particular to a feeding device and a dry-process electrode sheet preparation mechanism. A feeding device, configured to convey materials to a film-pressing device. The feeding device comprises a carrying member and a vibration assembly, wherein the carrying member is configured to receive the materials, and the carrying member is provided with a feed port and a discharge port; and the vibration assembly is connected to the carrying member, and the vibration assembly is capable of driving the carrying member to vibrate, so that the materials on the carrying member are uniformly dispersed under the action of a vibration force and move forward at a constant speed, and are conveyed from the feed port to the discharge port and fall into the film-pressing device, thereby ensuring continuous and uniform material supply, enabling the materials to enter the film-pressing device more uniformly, and as such ensuring the uniformity of the thickness of an electrode sheet, and facilitating improving the stability of a dry-process electrode sheet preparation process and improving the product quality.
Absstract of: WO2026146732A1
This positive electrode active material for a lithium secondary battery may have a nickel (Ni) content of greater than 80 mol% among components other than lithium (Li) and oxygen (O), and may satisfy formula 1 below according to thermogravimetric analysis (TGA): Formula 1 0.25 (%) < △W200(%)·200(K)/Tonset (K) < 0.75 (%), where Tonset (K) is an onset temperature, kelvin (K), in a first-stage decomposition section of the positive electrode active material; △W200(%) = Wonset(%) - Wonset+200K(%); Wonset (%) is a weight (%) at Tonset (K); and Wonset+200K (%) is a weight (%) at Tonset (K) +200 (K).
Absstract of: US20260196508A1
0000 An electrode assembly, a preparation method therefor, a battery, and an electrical apparatus are disclosed. The electrode assembly includes an electrode plate comprising a current collector, an active layer, and a tab. The active layer is disposed on at least one side of the current collector in its thickness direction, and the tab is arranged on one side of the current collector in its height direction. In a direction from the tab side toward the opposite side and from the current collector toward the outward side, the liquid absorption capacity of the active layer gradually decreases. Such gradient structure enables the active layer to exhibit different electrolyte absorption capacities in a specified direction, improving electrolyte wettability. The configuration further reduces electrolyte loss caused by electrode plate expansion or contraction during charge and discharge, thereby enhancing overall wettability of the electrode assembly.
Absstract of: WO2026145846A1
A lithium-ion secondary battery and a charging method thereof, and an electric device. The lithium-ion secondary battery comprises a positive electrode sheet and an electrolyte, wherein the positive electrode sheet comprises a positive electrode active material. The positive electrode active material comprises a first positive electrode active material and a second positive electrode active material, wherein the first positive electrode active material comprises a lithium-containing transition metal oxide, and the second positive electrode active material comprises a lithium-containing transition metal phosphate. The average particle size D1 of primary particles of the first positive electrode active material satisfies: 1.6 μm≤D1≤2.6 μm; and the average particle size D2 of primary particles of the second positive electrode active material satisfies: 40 nm≤D2≤250 nm. The electrolyte comprises a solvent, an additive and a lithium salt, with the additive comprising a cyclic sulfate compound. The lithium-ion secondary battery has a good power density and good high-temperature storage performance.
Absstract of: AU2025216193A1
A negative electrode active material and a preparation method therefor, a negative electrode sheet, a lithium-ion battery, and an electric device. The lithium-ion battery comprises one or more battery cells (5), the battery cell (5) comprises a negative electrode sheet, the negative electrode sheet comprises a negative electrode current collector and a negative electrode film layer located on at least one surface of the negative electrode current collector, and the negative electrode film layer comprises a negative electrode active material. The negative electrode active material comprises an inner core and a coating layer located on at least part of the surface of the inner core, wherein the inner core comprises graphite, and the coating layer comprises amorphous carbon; and in the cumulative distribution curve of the R value of the negative electrode active material obtained in the area scanning mode of a laser microscopic confocal Raman spectrometer, the concentration degree of the R value is less than or equal to 2.0.
Absstract of: WO2026144308A1
The present application provides a cylindrical secondary battery and an electronic device. The cylindrical secondary battery comprises an electrode assembly, the electrode assembly comprises electrode sheets, and each electrode sheet comprises a first current collector and a first material layer located on a surface of the first current collector. Starting from the tail end of the electrode sheet, in the length direction of the unfolded electrode sheet, the first material layer comprises a first section and a second section which are connected in sequence. On the basis of the length of the first material layer, the length proportion of the first section is K, wherein 1%≤K≤10%, and the surface of the first section is provided with a plurality of protrusions. By means of the described arrangement, the safety performance and cycle performance of the cylindrical secondary battery are improved while actual production requirements are taken into account.
Absstract of: US20260196567A1
0000 A high-safety lithium secondary battery electrolyte for high-speed charging, according to the present invention, comprises a linear carbonate solvent and a linear sulfate solvent including fluorine at the end thereof, and thus exhibits non-flammability and is suitable for high-speed charging.
Absstract of: AU2025215476A1
A negative electrode active material and a preparation method therefor, a negative electrode sheet, a lithium-ion battery, and an electric device. The lithium-ion battery comprises one or more battery cells (5), the battery cell (5) comprises a negative electrode sheet, the negative electrode sheet comprises a negative electrode current collector and a negative electrode film layer located on at least one surface of the negative electrode current collector, and the negative electrode film layer comprises a negative electrode active material. The negative electrode active material comprises an inner core and a coating layer located on at least part of the surface of the inner core, wherein the inner core comprises graphite, and the coating layer comprises hard carbon; and in the cumulative distribution curve of the R value of the negative electrode active material obtained in the area scanning mode of a laser microscopic confocal Raman spectrometer, from the lower limit, the R value of R50 having a cumulative distribution of 50% is 0.15-0.40. The negative electrode active material can make the battery have both a high energy density, and good dynamic performance and cycle performance.
Absstract of: US20260196484A1
0000 An anode material contains nitrogen, a carbon matrix and an active substance. The carbon matrix has pores, into which at least part of the active substance is disposed. The anode material has a first region having a depth of less than or equal to 200 nm from an outer surface of the anode material and a second region having a depth of greater than or equal to 1000 nm from the outer surface of the anode material. The first region contains α atomic percent of nitrogen, and the second region contains β atomic percent of nitrogen, where α<β, a deposition parameter of the active substance is defined as γ, and γ≥0.86. In the anode material, a relatively large part of the active substance is distributed in the pores of the carbon matrix, which reduces gas production of the anode material, and facilitates the conductive performance of the carbon matrix.
Absstract of: WO2026144276A1
A negative electrode sheet of a lithium-ion secondary battery comprises: a negative electrode current collector (100); and a negative electrode active material layer, located on at least one side of the negative electrode current collector, wherein the negative electrode active material layer comprises a first negative electrode active material layer (110) and a second negative electrode active material layer (120) which are stacked, and the second negative electrode active material layer (120) is located on the side of the first negative electrode active material layer (110) distant from the negative electrode current collector (100). The first negative electrode active material layer (110) comprises a first negative electrode active material, and the second negative electrode active material layer (120) comprises a second negative electrode active material, wherein the numerical proportion of secondary particles in the first negative electrode active material is greater than the numerical proportion of primary particles in the first negative electrode active material, and the numerical proportion of secondary particles in the second negative electrode active material is greater than the numerical proportion of primary particles in the second negative electrode active material.
Absstract of: WO2026145768A1
Provided in the present application are a battery cluster, an assembly method for the battery cluster, and an electric device. The battery cluster comprises: a first battery pack, a second battery pack, a first cluster frame and a second cluster frame. The first battery pack and the second battery pack are stacked in a first direction. The first direction is the direction of height of the battery cluster. The first cluster frame is connected to the first battery pack, and the first cluster frame is configured to provide structural protection for the first battery pack and the second battery pack. The second cluster frame is connected to the second battery pack, and the second cluster frame is configured to provide structural protection for the first battery pack and the second battery pack. The battery cluster only comprises the first cluster frame and the second cluster frame, thereby reducing the volume of the battery cluster, reducing the weight of the battery cluster, and lowering the production costs and hoisting difficulty of the battery cluster.
Nº publicación: US20260196504A1 09/07/2026
Applicant:
NINGDE AMPEREX TECH LIMITED [CN]
NINGDE AMPEREX TECHNOLOGY LIMITED
Absstract of: US20260196504A1
A positive electrode plate includes a positive electrode current collector, a first coating layer, and a positive electrode material layer. The first coating layer is disposed on a surface of the positive electrode current collector, and the positive electrode material layer is disposed on a surface of the first coating layer facing away from the positive electrode current collector. The first coating layer includes a lithium-containing material and a conductive material. The lithium-containing material has a Dv99 of 500 nm to 1000 nm, and the lithium-containing material has a specific surface area of 5 m2/g to 50 m2/g.
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