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932
resultados
Última actualización
08/02/2026 [07:30:00]
Resultados 175 a 200 de 932
Resumen de: AU2025205135A1
SUPPRESSANT MANAGEMENT Disclosed is an electrical power storage system comprising an electrical power source enclosure and a suppressant collector. The enclosure is arranged to seal an electrical power source therein and comprises a 5 first venting aperture arranged to allow venting of gas generated by the electrical power source when undergoing an over-heating event to outside of the enclosure. The first venting aperture is provided through an enclosure side wall of the enclosure. The suppressant collector is arranged outside of the enclosure and to collect a part of a volume of liquid suppressant when released into the enclosure, the part of the volume of suppressant leaving the enclosure via the first venting aperture. The suppressant collector comprises an exit 10 aperture providing an exit from the suppressant collector, where the exit aperture is at a higher level than the first venting aperture. Figure 4. SUPPRESSANT MANAGEMENT Disclosed is an electrical power storage system comprising an electrical power source enclosure and a 5 suppressant collector. The enclosure is arranged to seal an electrical power source therein and comprises a first venting aperture arranged to allow venting of gas generated by the electrical power source when undergoing an over-heating event to outside of the enclosure. The first venting aperture is provided through an enclosure side wall of the enclosure. The suppressant collector is arranged outside of the enclosure and to collect a part of
Resumen de: WO2026025767A1
The present application relates to the technical field of energy storage. Specifically disclosed are an energy storage system and a control method therefor. The energy storage system comprises a plurality of branches. The control method for the energy storage system comprises: acquiring a power-on request; in response to the power-on request, acquiring state information of all battery clusters on each branch, wherein the state information at least comprises an internal sampling voltage; and for any branch, on the basis of the state information of all the battery clusters on the branch, sending a power-on instruction to one of the battery clusters on the branch or to a plurality of voltage-equalized battery clusters on the branch, wherein the power-on instruction is used for instructing the corresponding battery cluster to execute a power-on operation. By means of the control method of the present invention, there is one battery cluster or a plurality of voltage-equalized battery clusters on each branch to implement a power-on process, such that all the branches can be powered on. Compared with the relevant art in which some branches cannot be powered on, the control method can increase the external discharge capacity of the energy storage system. Moreover, the possibility of the battery clusters on the branches being damaged due to the generation of a circulating current on the branches can be reduced.
Resumen de: WO2026025712A1
The present application provides a thermal management apparatus, a battery module, and an electric device. The thermal management apparatus comprises: a heat conductor, applied to fill a gap among a plurality of batteries; and a heater, comprising a heating portion, wherein the heating portion is embedded into the heat conductor.
Resumen de: WO2026026326A1
Provided are a battery cell (100), an electrode assembly (20), a winding needle (2), a battery (1000), and an electrical device. The battery cell (100) comprises a housing (10) and the electrode assembly (20). The electrode assembly (20) is disposed within the housing (10), and the electrode assembly (20) comprises a wound electrode sheet (21). The electrode sheet (21) comprises a first main body section (201) and a second main body section (202) connected along the winding direction. The second main body section (202) is arranged around the first main body section (201). The first main body section (201) is provided with a protrusion-recess structure (2011). The battery cell (100) has improved reliability.
Resumen de: WO2026026317A1
A positive electrode active material comprises a substrate and a coating layer provided on the surface of the substrate. The chemical formula of the substrate is Ax1M1y1N1z1O2, wherein the element A comprises at least one of Na and Li, the element M1 comprises at least one transition metal element, the element N1 comprises at least one non-transition metal element, 0.5≤x1≤1, 0≤y1≤1, and 0≤z1≤1. The chemical formula of the coating layer is Ax2M2y2N2z2O2, wherein the element M2 comprises at least one transition metal element, the element N2 comprises at least one non-transition metal element, 0.5≤x2≤1, 0≤y2≤1, and 0≤z2≤1. The greater bond energy among the bond energies between the element M1 and oxygen and between the element N1 and oxygen is the first bond energy; the greater bond energy among the bond energies between the element M2 and oxygen and between the element N2 and oxygen is the second bond energy; and the second bond energy is greater than the first bond energy. The binding force of the metal to oxygen in the coating layer is stronger, such that the reaction between an electrolyte and the coating layer can be effectively reduced, thereby improving the cycle life of a battery.
Resumen de: WO2026025584A1
Disclosed in the present application is a rechargeable battery, comprising: a lithium battery, which comprises a casing, a jelly roll, a first circuit board, a protective cover and a positive electrode body, the first circuit board having an element side and a polarity side which are arranged opposite to each other, the casing having an accommodation recess, and the element side facing the jelly roll; and a charging sleeve, which comprises a sleeve body, the sleeve body being provided with a mounting recess, a charging port and a second circuit board. When the lithium battery needs to be charged, one end of the lithium battery is clamped into the mounting recess, such that a positive electrode member is connected to the positive electrode body of the lithium battery, a negative electrode member is connected to the casing of the lithium battery, and an external power supply is plugged to the charging port so as to charge the lithium battery by means of the cooperation of the second circuit board, the positive electrode member, the negative electrode member, the positive electrode body and the first circuit board; and after the charging is completed, the lithium battery can be taken out from the mounting recess. Thus, the present application satisfies the charging demand of lithium batteries without increasing the size of lithium batteries, thus solving the problem that lithium batteries cannot be provided with charging ports due to insufficient space, and being applicable to m
Resumen de: WO2026025597A1
A silicon composite negative electrode material, a negative electrode sheet, and a battery. The silicon composite negative electrode material comprises an inner core (1), an intermediate layer (2), and an outer shell (3) in sequence, wherein the inner core (1) is silicon particles; the intermediate layer (2) is a fluorine-doped carbon layer; the outer shell (3) is a conductive polymer layer; and the mass proportion of fluorine in the silicon composite negative electrode material is 0.4-1.5%. Coating the surfaces of the silicon particles with the fluorine-doped carbon layer can effectively alleviate mechanical stress generated by volume expansion accompanying the intercalation of lithium into silicon particles, thereby improving the structural stability of the silicon composite negative electrode material. Moreover, fluorine doped in the carbon layer can form LiF with lithium ions, resulting in the formation of a stable SEI film rich in LiF on the negative electrode side. Further coating the surface of the fluorine-doped carbon layer with the conductive polymer layer can further optimize the conductivity and structural stability of the silicon composite negative electrode material, thereby ensuring that a battery containing the silicon composite negative electrode material has good cycling performance and high-rate fast charging performance.
Resumen de: WO2026025599A1
The present application provides a silicon-based negative electrode material, a negative electrode sheet, and a battery. The silicon-based negative electrode material comprises a core and a shell covering the core, the core comprises non-metal-doped silicon, and the shell comprises a conductive metal carbon layer; in the non-metal-doped silicon, the non-metal comprises B; and in the conductive metal carbon layer, the conductive metal carbon comprises at least one of Ti3C2(OH)2 and Ti3AlC2.
Resumen de: WO2026025598A1
The present application provides a silicon negative electrode material, a negative electrode, and a battery. The silicon negative electrode material comprises an inner core and an outer shell covering the inner core, wherein the inner core comprises metal-doped silicon, and the outer shell comprises a conductive polymer; the mass proportion of a metal element in the silicon negative electrode material is 0.3-1%; and the metal element comprises at least one of germanium and tin.
Resumen de: AU2026200341A1
Abstract Materials, designs, and methods of fabrication for iron-manganese oxide electrochemical cells are disclosed. In various embodiments, the negative electrode is comprised of pelletized, briquetted, or pressed iron-bearing components, including metallic iron or iron-based compounds (oxides, hydroxides, sulfides, or combinations thereof), collectively called “iron negative electrode.” In various embodiments, the positive electrode is comprised of pelletized, briquetted, or pressed manganese-bearing components, including manganese (IV) oxide (MnO2), manganese (III) oxide (Mn2O3), manganese (III) oxyhydroxide (MnOOH), manganese (II) oxide (MnO), manganese (II) hydroxide (Mn(OH)2), or combinations thereof, collectively called “manganese oxide positive electrode.” In various embodiments, electrolyte is comprised of aqueous alkali metal hydroxide including lithium hydroxide (LiOH), sodium hydroxide (NaOH), potassium hydroxide (KOH), cesium hydroxide (CsOH), or combinations thereof. In various embodiments, battery components are assembled in prismatic configuration or cylindrical configuration. Abstract an b s t r a c t a n
Resumen de: WO2026026651A1
Disclosed is an electric device, comprising a battery pack, the battery pack comprising a battery pack sealing plate or a battery pack tray, which comprises the battery pack sealing plate. Further disclosed is a manufacturing method for the battery pack sealing plate. The battery pack sealing plate comprises: a first protective layer and a second protective layer, which are stacked on one another; and a first reinforcing layer and a second reinforcing layer, which are arranged between the first protective layer and the second protective layer, wherein the second reinforcing layer extends in the circumferential direction of the first reinforcing layer, and the strength of the first reinforcing layer is different from that of the second reinforcing layer.
Resumen de: WO2026030312A1
A battery cell configured for buoyancy-induced electrolyte circulation includes battery cell components including a first electrode on a first current collector, a second electrode on a second current collector, the first electrode facing the second electrode, and a separator between the first electrode and the second electrode. The battery cell also includes an electrolyte. A hydraulic permeability of one or more of the components is sufficient for flow of the electrolyte through the respective component(s). Also or alternatively, one or more of the components includes in-plane channels, out-of-plane channels, and/or perforations configured to promote formation of electrolyte circulation loops within the battery cell during charging or discharging. A method of preventing thermal runaway of a battery cell is also described.
Resumen de: WO2026029515A1
According to some embodiments, a battery management system (BMS) manufacturing system comprises: a coating device configured to apply a coating material to a BMS circuit including circuit components mounted on a circuit board; a curing device configured to irradiate the surface of the BMS circuit with curing light to cure the coating material; and a test device configured to perform a functional test of the BMS circuit to cause the BMS circuit to generate heat in order to thermally treat a portion of the coating material that is not exposed to the curing light.
Resumen de: WO2026026568A1
The present application provides a positive electrode sheet and a battery. The positive electrode sheet comprises a positive electrode current collector and a positive electrode coating located on the surface of one side of the positive electrode current collector, the positive electrode coating containing a positive electrode active material; the positive electrode coating comprises a first coating and a second coating located between the first coating and the positive electrode current collector; the positive electrode active material in the first coating comprises secondary particles, and the positive electrode active material in the second coating comprises primary particles; the particle diameters D90, D50, and D10 of the positive electrode active material in the first coating satisfy 1.6≤(D90-D10)/D50≤1.95; and the particle sizes D60 and D10 of the positive electrode active material in the second coating satisfy 3.7≤D60/D10≤4.2. The present application can both reduce battery impedance and improve battery capacity and other performance.
Resumen de: WO2026026545A1
A sodium-ion battery positive electrode material and a preparation method therefor, a manganese-containing oxide, a sodium-ion battery, and an electric device. When an XRD pattern of the sodium-ion battery positive electrode material comprises a first diffraction peak α at a diffraction angle 2θ of 15.5°-16.5°, a second diffraction peak β at a diffraction angle 2θ of 32.0°-33.0°, and a third diffraction peak ω at a diffraction angle 2θ of 37°-38.5°, the sodium-ion battery positive electrode material has higher initial efficiency, cycle and rate properties than a sodium-ion battery positive electrode material that does not comprise the three characteristic peaks.
Resumen de: WO2026026277A1
Disclosed are a current collector and a preparation method therefor, an electrode sheet, a secondary battery, and an electric device. The current collector comprises an electroplated copper foil. Under test conditions of a temperature of 10-30°C, a sample length × width of (50±0.25 mm)×(15±0.25 mm), and a stretching speed of 50±0.5 mm/min, the yield-strength ratio of the copper foil is 0.55-0.75, and the elongation at break thereof is 5.5-7.5%. The current collector comprises the electroplated copper foil, which has good tensile and elongation properties, and thus, the bending resistance of the copper foil is significantly improved, such that copper foil fractures during the winding process of the electrode sheet can be reduced or avoided, thereby reducing the potential safety hazard of a secondary battery.
Resumen de: WO2026025590A1
The present application provides a battery cell and an electrical device. The battery cell comprises: a positive electrode plate, a negative electrode plate, and a separator provided between the positive electrode plate and the negative electrode plate. The positive electrode plate comprises a positive electrode current collector and a positive electrode film layer provided on the surface of at least one side of the positive electrode current collector. The positive electrode film layer comprises a positive electrode active material. The positive electrode active material comprises a lithium-containing phosphate, and the areal density of the positive electrode film layer on a single side is 0.35g/1540.25mm2 to 0.5g/1540.25mm2. The negative electrode plate comprises a negative electrode current collector and a negative electrode film layer provided on the surface of at least one side of the negative electrode current collector. The areal density of the negative electrode film layer on a single side is 0.13g/1540.25mm2 to 0.19g/1540.25mm 2. The negative electrode film layer comprises a negative electrode active material. The negative electrode active material comprises a material containing a silicon element, and the silicon element accounts for 2% to 10% by mass of the negative electrode active material.
Resumen de: WO2026025582A1
A lithium battery, comprises: a casing (101), a jelly roll (102), a circuit board (103), a protective cover (104) and a positive electrode body (105), wherein the circuit board (103) has a component side (1031) and a polarity side (1032) that are arranged opposite each other; the casing (101) has an accommodating cavity (1011); the jelly roll (102) is disposed in the accommodating cavity (1011); the circuit board (103) is disposed at an opening of the accommodating cavity (1011), with the component side (1031) facing the jelly roll (102); the protective cover (104) is disposed on the component side (1031); and the positive electrode body (105) is disposed on the polarity side (1032). Electronic components are concentrated on the component side (1031) of the circuit board (103), the component side (1031) faces the jelly roll (102), and the protective cover (104) protects the component side (1031) and prevents electrolyte infiltration and damage to the electronic components; a positive terminal of the jelly roll (102) is connected to the circuit board (103) by means of the protective cover (104), and is then led out by the positive electrode body (105), which functions as a positive electrode, and the casing (101) is connected to a negative terminal of the jelly roll (102) to serve as a negative electrode; and the component side (1031) of the circuit board (103) is arranged facing inward, so that the space inside the accommodating cavity (1011) can be fully utilized, thereby so
Resumen de: WO2026025546A1
The present application relates to the field of batteries. Provided are a battery pack and an electric device. The battery pack comprises a battery cell (10) and a case (20), wherein the battery cell (10) is provided with a ventilation pipe assembly (11), and first air ducts (111) are formed in an intra-pipe space of the ventilation pipe assembly (11); and the case (20) comprises two end plates (21), the two end plates (21) are respectively provided at two opposite ends of the battery cell (10), and second air ducts (211) in communication with the first air ducts (111) in manner of corresponding thereto on a one-to-one basis run through the end plates (21). With the above-described structure, the heat dissipation performance of the battery pack can be improved, the phenomenon of unbalanced heat in the middle and at the edge of the battery cell (10) can be mitigated, and the phenomenon of local overheating of the battery cell (10) can be reduced, such that the use reliability and use safety of the battery pack and the battery cell (10) thereof can be improved, the service life of the battery pack and the battery cell (10) thereof can be prolonged, and the risk of thermal runaway of the battery pack and the battery cell (10) thereof can be lowered.
Resumen de: WO2026029533A1
The present invention relates to a positive electrode for an all-solid-state battery, a manufacturing method thereof, and an all-solid-state battery comprising same. More specifically, by introducing a positive electrode active material layer manufactured by integrating a first positive electrode active material layer and a second positive electrode active material layer having different compositions into a positive electrode for an all-solid-state battery, it is possible to implement a high-loading positive electrode while reducing a concentration gradient of components in the positive electrode, thereby preventing deterioration of battery performance.
Resumen de: WO2026029524A1
The present invention relates to a secondary battery and a manufacturing method therefor. A current collecting plate according to the present invention has a predetermined portion of some foil tabs positioned on the upper side of the end in a bending direction, and the predetermined portion corresponds to a range of a blank region. In the foil tabs of which a predetermined portion is positioned on the upper side of the current collecting plate, the predetermined portion and/or a portion positioned on the lower side of the current collecting plate are melted and integrated with, by means of welding, a portion of the current collecting plate. In the present invention, an electrode assembly positioned below the blank region can be prevented from being affected during welding. Therefore, a separator and the like of the electrode assembly are prevented from being damaged during welding.
Resumen de: WO2026029513A1
Disclosed are: a secondary battery in which a current collecting plate and an electrode terminal are joined outside an accommodation can; and a method of manufacturing same. The secondary battery comprises: the accommodation can, which includes a bottom plate having a through hole and a terminal unit which is fixed to the bottom plate so as to be inserted into the through hole and has a terminal hole in a central portion; a cylindrical electrode assembly which is accommodated in the accommodation can and stores electrochemical energy, and in which a core cavity is positioned in a central portion; and the current collecting plate which is joined to one end of the electrode assembly so as to be exposed to the outside of the accommodation can via the terminal hole, and has a chamfered surface along the circumference of the terminal hole, wherein the terminal unit and the current collecting plate are joined by a welding bead that is positioned lower than the terminal unit and inside a welding recess defined by the chamfered surface and the inner surface of the terminal hole.
Resumen de: WO2026029480A1
The present invention relates to a secondary battery and a method for manufacturing same. A current collector plate according to the present invention includes a main body portion having a thickness T1 and a stepped portion formed at the end of the main body portion in a bending direction and having a thickness T2. The thickness T1 of the main body portion and the thickness T2 of the stepped portion are different from each other. The thickness of the stepped portion or the output of a welding device can be adjusted for welding the current collector plate to a foil tab. According to the present invention, it is possible to prevent an electrode assembly located below a blank area from being affected during a welding process. Therefore, it is possible to prevent, for example, a separator of the electrode assembly from being damaged during the welding process.
Resumen de: WO2026026426A1
The present application relates to the technical field of batteries, and discloses a battery, a battery module, and a battery pack. The battery of the present application comprises an encapsulation film and an electrode assembly. A recess is formed on at least one side of the symmetry line of the encapsulation film, the distance between the side of the recess facing the symmetry line and the symmetry line is d, and 0 mm≤d≤10 mm. An appropriate value of d can ensure the integrity and sealing performance of the encapsulation film structure. In addition, after hot-press encapsulation of the encapsulation film, the electrode assembly is surrounded by a range between the symmetry line and the edge of the recess, the encapsulation film in an encapsulation region occupies a certain space, and an appropriate value of d allows for the control of the space occupied by the encapsulation region, thereby effectively ensuring the space utilization of the battery and improving the volumetric energy density of the battery. In the structure, the value of d in the battery is appropriate and matches the thickness of the battery, ensuring the integrity and sealing performance of the encapsulation film structure, and facilitating improvement of the space utilization and volumetric energy density of the battery.
Nº publicación: WO2026026265A1 05/02/2026
Solicitante:
HUIZHOU EVE POWER CO LTD [CN]
EVE POWER CO LTD [CN]
\u60E0\u5DDE\u4EBF\u7EAC\u52A8\u529B\u7535\u6C60\u6709\u9650\u516C\u53F8,
\u6E56\u5317\u4EBF\u7EAC\u52A8\u529B\u6709\u9650\u516C\u53F8
Resumen de: WO2026026265A1
Provided in the present application are a tab structure and a welding tool. The tab structure comprises a plurality of tab units stacked and pre-welded together. The tab structure comprises a first end face and a second end face arranged opposite each other, wherein the first end face is configured to be connected to a welding head; the second end face is connected to a welding platform; the difference value between the highest point and the lowest point of a metallographic section of the first end face in a first direction is H1; and the difference value between the highest point and the lowest point of a metallographic section of the second end face in the first direction is H2, where H1≤H2.
BOPI
Sede Electrónica
