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1238
results.
Updated on
22/07/2025 [07:13:00]
Results 225 to 250 of 1238
Absstract of: US2025233261A1
A battery module includes a battery cell stack in which a plurality of battery cells are stacked; a module frame that houses the battery cell stack; and end plates that cover the front and rear surfaces of the battery cell stack exposed from the module frame. The end plate includes a front end plate and a rear end plate, and further includes a first venting hole and a second venting hole formed in the front end plate and the rear end plate, a venting plate formed on the rear end plate so as to be connected to the second venting hole, and a duct member formed on the upper part of the module frame so as to be connected to the venting plate. The duct member extends in a longitudinal direction of an upper part of the module frame and is connected to the front end plate.
Absstract of: US2025233286A1
A secondary battery having higher reliability is provided. The secondary battery includes a first electrode current collector plate, a second electrode current collector plate, and an electrode wound body. The electrode wound body is disposed between the first electrode current collector plate and the second electrode current collector plate, and has a through hole extending in a height direction. The electrode wound body includes a stacked body that includes a first electrode, a second electrode, and a separator and is wound. The first electrode includes a first electrode current collector and a first electrode active material layer. The first electrode includes a first electrode covered region and a first electrode exposed region. At least a portion of the first electrode exposed region is coupled to the first electrode current collector plate. The second electrode includes a second electrode current collector and a second electrode active material layer. The second electrode includes a second electrode covered region and a second electrode exposed region. At least a portion of the second electrode exposed region is coupled to the second electrode current collector plate. The second electrode current collector plate includes a facing part and a band-shaped part. The band-shaped part includes a projection region including multiple projections, and a flat region. The flat region is positioned at a leading end part, of the band-shaped part, on an opposite side of the projectio
Absstract of: US2025233242A1
This application discloses a box assembly, a battery, and an electric apparatus. The box assembly includes a frame, where the frame includes a bottom plate and side plates arranged around the bottom plate, and the bottom plate and the side plates jointly enclose an accommodating cavity; and at least one heat exchange beam, where the heat exchange beam is disposed in the accommodating cavity to divide the accommodating cavity into a plurality of accommodating sub-cavities, and a heat exchange passage is provided in the heat exchange beam for circulating a heat exchange medium. The heat exchange beam can improve the overall rigidity of the frame. In addition, the heat exchange passage is provided in the heat exchange beam for circulating the heat exchange medium, so that the heat exchange beam is integrated with the heat exchange function.
Absstract of: US2025233285A1
A battery cell, a battery, and an electrical device are disclosed. The battery cell includes: a shell, an electrode assembly, an electrode terminal, and a current collecting component. The shell is configured to accommodate the electrode assembly. The electrode assembly includes a tab. The electrode terminal is disposed on the shell. The current collecting component includes a tab connecting portion and a terminal connecting portion. The tab connecting portion is configured to be connected to the tab. The terminal connecting portion is configured to be connected to the electrode terminal. The terminal connecting portion includes a plurality of terminal connecting sub-portions stacked in layers. Each terminal connecting sub-portion includes a riveting sub-portion. Any two adjacent riveting sub-portions are fixed together by riveting.
Absstract of: US2025233293A1
A battery and an electric apparatus are disclosed. The battery includes a plurality of battery cells and a connecting piece, where the battery cells are sequentially stacked, the connecting piece extends in a stacking direction of the battery cells, and the connecting piece is bonded to the plurality of battery cells. The electric apparatus includes the battery described above.
Absstract of: AU2024278393A1
A high voltage box includes: a box, a cover plate, and electrical elements received in a receiving space inside the box. A top of the box defines an opening, and the cover plate covers the opening of the box. The box includes a first side panel and a second side panel opposite to the first side panel; the receiving space is defined between the first side panel and the second side panel; the electrical elements include a battery management system, a positive-electrode fuse arranged on a positive-electrode circuit and/or a negative-electrode fuse arranged on a negative-electrode circuit. The battery management system is located on a side of the receiving space near the first side panel; the positive-electrode fuse and/or the negative-electrode fuse is located on another side of the receiving space near the second side panel. A high voltage box includes: a box, a cover plate, and electrical elements received in a receiving space inside the box. A top of the box defines an opening, and the cover plate covers the opening of the box. The box includes a first side panel and a second side panel opposite to the first side panel; the receiving space is defined between the first side panel and the second side panel; the electrical elements include a battery management system, a positive-electrode fuse arranged on a positive-electrode circuit and/or a negative-electrode fuse arranged on a negative-electrode circuit. The battery management system is located on a side of the receiving spac
Absstract of: AU2024278494A1
A battery pack and a vehicle are disclosed. A battery compartment defined between a first housing and a second housing is configured to accommodate a cell assembly and the cell assembly is effectively protected by the housings. The first connecting portion and the second housing are connected to each other such that the first housing and the second housing are assembled together. A first bending portion extends toward the battery compartment, which enables a sealing member to be closer to the battery compartment. As a result, an enclosure structure is formed at the first connecting portion and a sealing structure is formed at the first bending portion. The sealing member is disposed around a periphery of the battery compartment to seal the periphery of the battery compartment and a connection gap between the first housing and the second housing, reducing an intrusion of external substances into the battery compartment. A battery pack and a vehicle are disclosed. A battery compartment defined between a first housing and a second housing is configured to accommodate a cell assembly and the cell assembly is effectively protected by the housings. The first connecting portion and the second housing are connected to each other such that the first housing and the second housing are assembled together. A first bending portion extends toward the battery compartment, which enables a sealing member to be closer to the battery compartment. As a result, an enclosure structure is formed at
Absstract of: AU2024246892A1
An olivine cathode active material for a lithium secondary battery according to an embodiment of the present invention comprises: a core portion containing a lithium metal phosphate; and a carbon coating layer disposed on the surface of the core portion, and can satisfy the following relational expression 2. Relational expression 2: 0.20 ≤ D50*Dc^2*C/1000 ≤ 0.50 (In relational expression 2, D50 is the average particle size (µm) of the olivine cathode active material, Dc is the grain size (nm) in the olivine cathode active material, and C is the weight percentage (%) of carbon in the olivine cathode active material.)
Absstract of: WO2025148555A1
The present application is applicable to the technical field of batteries, and provides a battery cell, a battery, and an electrical apparatus. The battery cell comprises a positive electrode sheet, a negative electrode sheet, and a separator; the positive electrode sheet, the negative electrode sheet, and the separator are arranged layer by layer on the basis of a preset sequence and are wound to form a wound body; the positive electrode sheet, the negative electrode sheet, and the separator respectively comprises a plurality of straight portions and a plurality of bent portions that are alternately connected; at least one surface of at least one bent portion is coated with a non-continuously distributed coating. According to the battery cell, the battery, and the electrical apparatus provided by the present application, the risk of phenomena such as electrode sheet breakage and lithium precipitation at a corner can be reduced to a certain extent.
Absstract of: WO2025148461A1
The present application relates to the technical field of batteries, and provides a positive electrode sheet and a preparation method therefor, a binder, a battery, and an electric device. The positive electrode sheet comprises a positive electrode current collector and a positive electrode film layer located on at least one surface of the positive electrode current collector, the positive electrode film layer comprises a binder, and the binder comprises a copolymer.
Absstract of: WO2025148501A1
A battery cell (12), a battery (100), and an electrical device. The battery cell (12) comprises a casing (121), pressure relief mechanisms (123), and an electrode assembly (122). The casing (121) has a first end wall (1211) and a side wall (1212), and the side wall (1212) surrounds the first end wall (1211); the first end wall (1211) comprises a body (12111) and protruding portions (12112), and the protruding portions (12112) protrude from the inner surface of the body (12111); the pressure relief mechanisms (123) are arranged on the body (12111); the electrode assembly (122) is accommodated in the casing (121); the electrode assembly (122) comprises a main body (1221) and a first tab (1222), and the first tab (1222) is arranged on one end of the main body (1221); a first gap (124) is formed between the outer peripheral surface of the main body (1221) and the inner surface of the side wall (1212); the first current collector (125) is located between the first end wall (1211) and the electrode assembly (122), the protruding portions (12112) are connected to the first current collector (125), a second gap (126) is formed between the body (12111) and the first current collector (125) in the thickness direction of the first end wall (1211), and the first gap (124) is in communication with the second gap (126). The pressure relief mechanisms (123) can maintain an unobstructed connection with the first gap (124), such that when the battery cell (12) undergoes thermal runaway, the g
Absstract of: US2025233251A1
This disclosure describes a battery tower design using pouch cell or blade cell batteries to build modular towers and assemble battery units to fit within electrified heavy-duty equipment. The battery units are modular to enable expansion of the battery units horizontally and/or vertically to fit within irregular-shaped compartments originally intended for non-electric powertrain components. The battery towers are modular units with frames for holding battery cells with their width in a vertical direction and stacking the cells vertically along a length of a frame that includes passive and active cooling components.
Absstract of: US2025233219A1
The present application relates to a battery cell, a battery, and an electric apparatus. The battery cell comprises a housing, an electrode assembly, and a temperature acquisition member. The housing comprises a plurality of walls that define a first chamber, and at least one wall has a second chamber formed therein. The electrode assembly is accommodated in the first chamber. The temperature acquisition member is accommodated in the second chamber. By arranging the temperature acquisition member in the second chamber, the temperature acquired by the temperature acquisition member is more approximate to the actual temperature of the electrode assembly, thereby instantly reflecting the temperature rise of the electrode assembly and reducing the probability of thermal runaway of the battery cell.
Absstract of: US2025233214A1
A solid-state battery includes a positive electrode active material layer, a solid electrolyte layer, and a negative electrode active material layer, in this order, in which: the positive electrode active material layer contains moisture; and the moisture amount of the positive electrode active material layer is 500 ppm to 1200 ppm, the hydroxyl group standard value of the positive electrode active material layer is 0.72 to 0.85, or the moisture amount of the positive electrode active material layer is 500 ppm to 1200 ppm while the hydroxyl group standard value of the positive electrode active material layer is 0.72 to 0.85.
Absstract of: US2025233235A1
Provided are a battery module and a battery pack. The battery pack includes a battery module. The battery module includes a liquid cooling structure and multiple battery cells. The liquid cooling structure includes an upper case plate, a lower case plate, and a support member. The upper case plate and the lower case plate are oppositely arranged to form accommodation spaces, a surface of the upper case plate and a surface of the lower case plate facing each other are cooling surfaces, the cooling surfaces are provided with grooves, and the grooves are adapted to the circumferential side surfaces of the battery cells. The support member extends along the upper case plate and is perpendicularly connected between the upper case plate and the lower case plate.
Absstract of: US2025233290A1
The present application relates to a battery. According to the invention, the battery comprises a housing made of plastic, which has a cavity delimited by an inner wall of the housing, in which a stack of electrodes is arranged and an electrolyte solution is filled. At least one feed-through element protrudes from a surface of the housing through the housing at least partially into the cavity. At least one contact element made of a conductive material is arranged inside the cavity and is conductively connected to the at least one feed-through element. The at least one contact element is arranged in the cavity in such a way that tab elements of like-poled electrodes of the electrode stack are held in a clamping manner between at least a first surface of the at least one contact element and the inner wall.
Absstract of: US2025233243A1
A battery pack that is connectable to and supportable by a power tool (e.g., a hand-held power tool). The battery pack includes a top housing having a support member. The support member of the battery pack top housing is configured or operable to reinforce a support portion of the battery pack that is used to connect the battery pack to the power tool. By reinforcing the support portion of the battery pack, an interface between the battery pack and the power tool is able to withstand greater forces (e.g., from vibrations caused by the power tool).
Absstract of: US2025233237A1
An all-solid-state battery according to present disclosure includes a cell stack including a solid electrolyte layer, and a positive electrode layer and a negative electrode layer with the solid electrolyte layer disposed therebetween, and an outermost layer disposed on one surface or both surfaces of the cell stack in a stacking direction of the positive electrode layer, the solid electrolyte layer, and the negative electrode layer. The outermost layer includes an epoxy resin and glass particles, and the glass particles include a boron (B) oxide, a silicon (Si) oxide, and an aluminum (Al) oxide.
Absstract of: US2025233283A1
The flexible battery comprising multiple power generation elements. Each of the power generation elements comprises a positive electrode, a negative electrode, and a solid electrolyte layer arranged between the positive and negative electrodes. The positive electrode comprises a positive electrode composition layer and a conductive substrate in a form of a sheet arranged on the surface of the positive electrode composition layer. The negative electrode comprises a negative electrode composition layer and a conductive substrate in a form of a sheet arranged on the surface of the negative electrode composition layer. The multiple power generation elements are arranged on a flexible substrate. Each positive electrode is directly connected to a current collector, thereby connecting the positive electrodes to each other via the current collector. Each negative electrode is directly connected to a current collector, thereby directly connecting the negative electrodes to each other via the current collector.
Absstract of: US2025233278A1
A conductive module includes a bus bar physically and electrically connected to an electrode terminal of one or a pair of battery cells of a battery module in which a plurality of the battery cells is arranged, a first circuit conductor that transmits battery state information of each of the battery cells to a battery monitoring device, a second circuit conductor that is responsible for transmission and reception of a signal between the battery monitoring device and a battery management device that performs battery management control on the battery module, a first connector that is connector-connected to the battery monitoring device to transmit the battery state information from the first circuit conductor to the battery monitoring device, and a second connector that is connector-connected to the battery management device to transmit and receive a signal.
Absstract of: US2025233238A1
A battery cell includes a housing assembly provided with an aperture, an electrode assembly, a conductive strip, and a feed-through assembly including a first gasket, a second gasket, a conductive terminal, and a rivet. The first gasket is disposed on an outer surface of the housing assembly. The second gasket includes an integrally formed second gasket body disposed on an inner surface of the housing assembly and an annular sleeve at least partly located in the aperture. The conductive terminal is disposed on a side of the second gasket facing back from the first gasket. The rivet passes through the first gasket, the aperture, the annular sleeve, the second gasket body, and the conductive terminal, and is electrically connected to the conductive terminal. The rivet abuts against the first gasket and the second gasket to form a seal at the aperture.
Absstract of: WO2025148503A1
Provided are a solution for preparing an electrolyte and a preparation method therefor, an electrolyte and a preparation method therefor, a lithium-ion battery, and an electric device. The solution comprises a non-aqueous solvent and magnesium nitrate, wherein the non-aqueous solvent comprises an ester solvent; and the water content a of the solution satisfies: a<100 ppm. The solution contains magnesium nitrate dissolved therein and has an extremely low water content. An electrolyte prepared from the solution can contain magnesium nitrate and has the advantages of a low water content and a low probability of deterioration; and when being used in a lithium-ion battery, the electrolyte is conducive to improving the cycle life of the lithium-ion battery.
Absstract of: WO2025148494A1
A secondary battery and an electric device. The secondary battery comprises a negative electrode sheet; the negative electrode sheet comprises a negative electrode current collector and a negative electrode film layer formed on at least one surface of the negative electrode current collector; the negative electrode film layer comprises a lower region and an upper region; the lower region contains a first negative electrode active material; the upper region contains a second negative electrode active material; the median of the Raman value ID/IG of the first negative electrode active material is denoted as R150; the median of the Raman value ID/IG of the second negative electrode active material is denoted as R250; R150 is less than R250; and the graphitization degree of the first negative electrode active material is greater than that of the second negative electrode active material. The design is beneficial to improving the fast charging performance and energy density of the secondary battery.
Absstract of: WO2025148416A1
A positive electrode plate, comprising a current collector and a positive electrode active layer, the positive electrode active layer being arranged on at least one surface of the current collector, and the positive electrode active layer comprising a first active layer directly coated on the current collector and a second active layer coated on the surface of the side of the first active layer furthest from the current collector side, wherein the first active layer comprises first lithium iron phosphate particles and the thickness of the first active layer is in the range of 15-60 μm, the second active layer comprises second lithium iron phosphate particles and/or second manganese iron phosphate particles and the thickness of the second active layer is in the range from 60-130 μm, the primary average particle size of the first lithium iron phosphate particles is 500-3000 nm, and that of the second lithium iron phosphate particles and/or the second manganese iron phosphate particles is 150-480 nm.
Nº publicación: US2025233289A1 17/07/2025
Applicant:
CONTEMPORARY AMPEREX TECH HONK KONG LIMITED [CN]
CONTEMPORARY AMPEREX TECHNOLOGY (HONK KONG) LIMITED
Absstract of: US2025233289A1
This application relates to a battery cell, a battery, and an electric device. The battery cell includes an end cover assembly, a tab bracket, a fixing member, a housing, and an electrode assembly. The housing has an opening. The end cover assembly closes the opening of the housing. The electrode assembly is provided in the housing and provided with a tab. The tab bracket is provided on a side of the end cover assembly facing the electrode assembly, where the tab is bent around the tab bracket. The fixing member is configured to fix the tab bracket to the end cover assembly.
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