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1394
results.
Updated on
23/12/2025 [07:13:00]
Results 250 to 275 of 1394
Absstract of: WO2025258993A1
The technical idea of the present invention comprises: a base frame; a first cell assembly provided on the main surface of the base frame and including a plurality of first battery cells stacked in the vertical direction perpendicular to the main surface of the base frame and a first sidewall attached to the plurality of first battery cells; and a second cell assembly provided on the main surface of the base frame and including a plurality of second battery cells stacked in the vertical direction, wherein the first sidewall includes a venting adjustment portion configured to adjust a venting direction of gas discharged from the plurality of second battery cells, and the venting adjustment portion includes inclined surfaces provided on a surface of the first sidewall facing the plurality of second battery cells and inclined with respect to the vertical direction.
Absstract of: WO2025258981A1
The present invention relates to: a gel polymer electrolyte-separator composite for an electrochemical device; and an electrochemical device comprising same. According to the present invention, provided are: a gel polymer electrolyte-separator composite for an electrochemical device, the gel polymer electrolyte-separator composite being capable of preventing the occurrence of internal short circuits caused by the growth of lithium dendrites; and an electrochemical device comprising same.
Absstract of: WO2025258913A1
The technical idea of the present invention provides a coating apparatus comprising: a coating die including a manifold accommodating a first coating solution and a die lip having a discharge port for discharging the first coating solution; and a coating shim disposed in the coating die, wherein the coating shim includes: a body shim including a center body and a first side body, the center body being spaced apart from the die lip with the manifold therebetween, and the first side body extending from the center body toward the die lip and not overlapping the manifold; and a first spacer shim extending between the center body and the die lip, the first spacer shim including an inner portion overlapping the manifold and an outer portion disposed between the manifold and the first side body.
Absstract of: US2025385338A1
A prismatic battery cell comprising a prismatic can defining a chamber, a first terminal and a second terminal each coupled to the prismatic can, a vent coupled to the prismatic can and in fluid communication with the chamber, and battery internals arranged in the chamber comprising at least one jelly roll. The prismatic battery cell further comprising a thermal runaway propagation management system comprising a bladder arranged in the chamber with respect to the at least one jelly roll, a port coupled to the prismatic can and in fluid communication with the bladder, and a fluid at least partially filling the bladder.
Absstract of: US2025385324A1
A battery energy storage system is provided and comprises a battery module comprising a plurality of batteries and a plurality of microinverters including wiring that is grouped in a branch cable that connects to a trunk cable for connecting the wiring to a wiring box.
Absstract of: US2025385353A1
A casing assembly, a battery cell, a battery, and an electric apparatus are disclosed. The casing assembly includes a casing and a sealing assembly. The casing has a through hole, and the sealing assembly seals the through hole. The sealing assembly includes an insulating member that covers a conductive member. The conductive member includes a first contact portion and a second contact portion. A connecting member with a hollow inner cavity is connected to the casing, and the insulating member fills the inner cavity. The first contact portion is located on the inner side of the casing, and the second contact portion is located on the outer side. This structure allows the sealing assembly to block the through hole and helps prevent electrolyte leakage, thereby enhancing the sealing performance of the casing.
Absstract of: US2025385382A1
A battery includes: a battery cell with a pressure relief mechanism provided at a first wall thereof; a support component configured to support the battery cell and including first and second support components that are connected and located on the same side of the battery cell, the first support component being located between the first wall and the second support component and attached to the first wall, the first support component being provided with a first through hole corresponding to the pressure relief mechanism, and the second support component being provided with a second through hole corresponding to the pressure relief mechanism; and a first protective component configured to close the second through hole and to be destroyed when the pressure relief mechanism is actuated, so as to allow an emission from the battery cell to pass through the second support component.
Absstract of: US2025385355A1
The present invention, in order to improve stability by directing a venting direction, provides a battery cell and a battery module comprising same, comprising: an electrode assembly; a case for accommodating the electrode assembly; an electrode terminal electrically connected to the electrode assembly; and a sealing portion to which an edge of the case is joined, wherein the sealing portion comprises a first sealing portion in which the electrode terminal is embedded and a second sealing portion in which the electrode terminal is not embedded, a folding portion is formed on at least a part of the second sealing portion, and a holding member coupled to the folding portion is included.
Absstract of: WO2025255997A1
A secondary battery and an electric device. The secondary battery comprises a positive electrode sheet; the positive electrode sheet comprises a positive electrode current collector and a positive electrode active material layer provided on at least one side of the positive electrode current collector; the positive electrode active material layer comprises a positive electrode active material; the positive electrode active material comprises a lithium-containing transition metal oxide; a particle of the lithium-containing transition metal oxide comprises an inner region and a surface layer region at least partially surrounding the inner region; the surface layer region comprises a first surface layer region and a second surface layer region; the second surface layer region is located between the first surface layer region and the inner region; the first surface layer region and the second surface layer region each comprise a first phase structure and a second phase structure; the first phase structure comprises a layered phase structure; the second phase structure comprises at least one of a spinel phase structure and a rock salt phase structure; the first surface layer region comprises a rock salt phase structure and a layered phase structure; and the second surface layer region comprises a spinel phase structure and a layered phase structure. The secondary battery has excellent cycle performance.
Absstract of: WO2025256122A1
The present application provides a battery thermal management system and method, an electronic device, and a storage medium. The system comprises an air conditioning refrigeration loop, a battery liquid cooling loop, and an external pipe. The battery liquid cooling loop comprises a battery pack, a heat exchanger, and a control valve; the control valve is configured to control the battery liquid cooling loop to be connected to or disconnected from the air conditioning refrigeration loop or the external pipe; and the heat exchanger is configured to implement heat energy exchange between the battery liquid cooling loop and the air conditioning refrigeration loop when the battery liquid cooling loop is connected to the air conditioning refrigeration loop. The external pipe is connected to an external device, wherein when the battery liquid cooling loop is connected to the external pipe, the external device is configured to cool the battery pack. In the present application, the external device can be directly used to cool the battery pack, enhancing the heat dissipation performance of batteries in super charging and fast charging situations.
Absstract of: WO2025256120A1
An electrolyte and a battery comprising same. The electrolyte comprises a solvent, an electrolyte, and an additive. The additive comprises a film-forming additive and a polyether-modified polysiloxane. The polyether modified polysiloxane has a structure represented by formula I. In formula I, R1, R2 and R3 are each independently selected from C1-C6 hydrocarbyl or C6-C10 aryl, 1<m<4, 0<n<4, and 0<k<4. In the electrolyte, the film-forming additive and the polyether-modified polysiloxane are used in combination, which helps to form a thinner and denser high-quality SEI film with good flexibility while effectively improving the wettability of the electrolyte; therefore, the internal impedance of a battery can be effectively reduced, and the battery is allowed to have good cycling performance and storage performance under high-temperature conditions.
Absstract of: WO2025258448A1
The present disclosure provides: an adhesive for a power storage device packaging material, the adhesive exhibiting, even at a low coating amount, high impact resistance after molding and after a wet heat resistance test that is harsher than in the past; a packaging material for a power storage device, the packaging exhibiting excellent impact resistance; a container for a power storage device; and a power storage device. The adhesive for a power storage device packaging material according to the present disclosure is constituted from at least a polyester polyol (A) and a polyisocyanate (B). The polyester polyol (A) contains 10-60 mol% of constituent units derived from a polyhydric alcohol (a1) having a melting point of 10-50ºC. In a cured product, the storage elastic modulus at 25°C (Er25 MPa) and the storage elastic modulus at 60°C (Er60 MPa) satisfy conditions (i) and (ii). Condition (i): Er60 is 50-1000 MPa. Condition (ii): Er25 and Er60 satisfy the relationship 1≤(Er25-Er60)/Er60≤7.
Absstract of: WO2025258817A1
A battery module according to one embodiment of the present invention comprises: a battery cell stack formed by stacking a plurality of battery cells; and a bus bar frame which covers at least one surface of the battery cell stack, and on which at least two terminal bus bars electrically connected to the battery cell stack are mounted, wherein the terminal bus bar includes at least one coupling slit for electrical connection with an external component.
Absstract of: WO2025259092A1
The present invention relates to an electrode resistance measurement device. The objective of the present invention is to provide an electrode resistance measurement device comprising: a first terminal unit, which is in direct contact with an exposed surface of an electrode layer so as to be electrically connected thereto; a second terminal unit, which is in direct contact with a current collector so as to be electrically connected thereto; and a resistance measurement unit for measuring the electrical resistance between the first terminal unit and the second terminal unit, wherein the first terminal unit has a surface, which is in contact with the electrode layer and is formed as a microporous layer, and the second terminal unit includes a fixed means fixed to an uncoated part of the current collector, and thus through-plane resistance of the electrode layer formed on one surface of the current collector can be measured.
Absstract of: WO2025259085A1
A non-contact liquid heat dissipation material remixing device and a liquid heat dissipation material remixing method using same according to the present invention can optimize a remixing process by controlling process conditions while suppressing phase separation of a heat dissipation material through the remixing process of the liquid heat dissipation material. In particular, by adjusting the rotation time and rotation direction of the heat dissipation material and the inclination of a container containing the material, the miscibility of a polymer resin and thermally conductive particles can be increased and heat dissipation characteristics can be improved.
Absstract of: US2025385377A1
A power storage device includes: a first power storage stack including a plurality of power storage cells; a second power storage stack including a plurality of power storage cells; and a partition wall separating the first and second power storage stacks from each other. The power storage cells each include a cell main body and an external terminal. The partition wall includes: an upper partition portion located at a higher position than the external terminal; a lower partition portion located at a lower position than the external terminal; and a connecting portion located between a pair of the external terminals adjacent to each other in the second direction, and connecting the upper and lower partition portions to each other. A width of the connecting portion is smaller than a width of the upper partition portion and a width of the lower partition portion.
Absstract of: US2025385346A1
Apparatus, systems, and methods described herein relate to the manufacture and use of single pouch battery cells. In some embodiments, an electrochemical cell includes a first current collector coupled to a first portion of a pouch, the first current collector having a first electrode material disposed thereon, a second current collector coupled to a second portion of the pouch, the second current collector having a second electrode material disposed thereon, and a separator disposed between the first electrode material and the second electrode material. The first portion of the pouch is coupled to the second portion of the pouch to enclose the electrochemical cell.
Absstract of: US2025385393A1
A battery assembly includes: a first binding bar provided to cover a side of each of a plurality of battery cells on which an electrode terminal is disposed; and a plurality of bus bars that each electrically join electrode terminals of battery cells adjacent to each other, wherein each of the bus bars is fixed at a position facing the electrode terminals on an inner surface side of the first binding bar on which the battery cells are located, the bus bar is not fixed to each of the electrode terminals and is in contact with and connected to the electrode terminal, and the bus bar includes a base portion composed of a resin, and a bus bar terminal embedded in the base portion and having a first contact surface and a second contact surface each exposed from the base portion to make contact with the electrode terminal.
Absstract of: US2025385357A1
The invention relates to a composition comprising: —a moisture-crosslinkable polymer, —at least 1% by weight of unexpanded heat-expandable organic particles, and—at least 20% by weight of an inorganic filler, the weight percentages being with respect to the total weight of the composition. The invention also relates to a method for bonding substrates implementing the composition according to the invention. Furthermore, the invention relates to an article comprising the composition according to the invention. The invention further relates to a method for separating substrates implementing the composition according to the invention and comprising a heating step. Finally, the invention relates to the uses of the composition according to the invention.
Absstract of: US2025385374A1
A battery pack includes a battery cell assembly including one or more battery cells, a case in which at least a portion of the battery cell assembly is accommodated, the case including a first groove and a second groove, a cover coupled to the case, and a sealing member between the case and the cover, a portion of the sealing member being located in the first groove and the second groove.
Absstract of: US2025385375A1
Disclosed is a battery pack in which a fastening recess is provided on a side surface of a vertical frame and a CMU is fastened to the fastening recess, thereby securing rigidity of the vertical frame and maximizing an internal space of the battery pack.
Absstract of: WO2025255935A1
The present invention relates to the technical field of batteries, and in particular relates to a battery cell, a battery, and a preparation method for the battery cell. The battery cell comprises electrode sheets, wherein each electrode sheet comprises a current collector, which comprises a first wall surface; the first wall surface comprises a first coating area, a second coating area and a first non-coating area, the first non-coating area being arranged between the first coating area and the second coating area; and the current collector is bent at the first non-coating area. The battery comprises the battery cell. The preparation method for the battery cell comprises the following steps: providing several first non-coating areas on an electrode sheet; performing die-cutting on the electrode sheet to form several sub-electrode sheets, each sub-electrode sheet comprising a first non-coating area; stacking the sub-electrode sheets in the direction of thickness to form a stacked core, the first non-coating areas on each sub-electrode sheet being arranged opposite each other in the direction of thickness of the stacked core; bending the stacked core at the first non-coating areas; and performing post-processing on the bent stacked core to obtain the battery cell. By means of the battery cell and the battery, the internal space of a battery compartment can be effectively utilized.
Absstract of: WO2025255939A1
Provided in the embodiments of the present disclosure are a battery grouping device, a production line, and a battery grouping method. The battery grouping device comprises a first conveying module, a grouping module, a second conveying module and a pressurizing module. The first conveying module is configured to convey a plurality of battery cells. The grouping module comprises a grouping platform, a pressing mechanism and a feeding mechanism. The feeding mechanism comprises a first driving member and a feeding member. The feeding mechanism pushes the battery cells on the first conveying module to the grouping platform, and the pressing mechanism is capable of selectively pressing the battery cells located on the grouping platform. The feeding mechanism is capable of pushing the battery cells on the grouping platform to the second conveying module to be combined into a battery pack, and small surfaces of adjacent battery cells in the battery pack are in contact with each other. The pressurizing module comprises a pressurizing mechanism. The second conveying module is configured to convey the battery pack to the pressurizing module. The pressurizing mechanism is configured to pressurize the battery pack in a first direction.
Absstract of: WO2025255927A1
The present application provides a battery cell, a battery and an electrical device. The battery cell comprises a casing, an electrode terminal, an electrode assembly, and a current collecting member. The electrode terminal is provided on the casing. The electrode assembly is accommodated in the casing, and the end of the electrode assembly facing the electrode terminal is provided with a first tab. The current collecting member is accommodated in the casing and disposed on the side of the first tab facing the electrode terminal; the current collecting member comprises a first current collecting portion and a second current collecting portion connected to the first current collecting portion; the first current collecting portion is welded to the electrode terminal; the second current collecting portion is connected to the tab; and the thickness of the first current collecting portion is greater than that of the second current collecting portion.
Nº publicación: WO2025258905A1 18/12/2025
Applicant:
UIF UNIV INDUSTRY FOUNDATION YONSEI UNIV [KR]
\uC5F0\uC138\uB300\uD559\uAD50 \uC0B0\uD559\uD611\uB825\uB2E8
Absstract of: WO2025258905A1
The present invention relates to a dry electrode binder composition for a secondary battery, the dry electrode binder composition comprising cellulose functionalized to have an ionic functional group or a polar functional group bonded thereto. Accordingly, the composition makes it possible to manufacture a dry electrode without a fluorine-based binder. Moreover, the composition not only has excellent dispersibility and adhesion compared to a PTFE binder used as a conventional dry electrode binder, but also exhibits excellent electrolyte wettability through the interaction between an electrolyte and cellulose, thus making it possible to form a stable electrode-electrolyte interface. As a result, it is possible to manufacture a high-capacity thick film electrode, achieve a secondary battery having high energy density, and prepare for restrictions on the use of perfluorinated compounds.
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