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1394
results.
Updated on
23/12/2025 [07:13:00]
Results 200 to 225 of 1394
Absstract of: US2025385327A1
A battery test apparatus includes an enclosed battery holder which detachably holds a secondary battery, a thermostatic oven in which the battery holder is held, and a charge and discharge test device which charges and discharges the secondary battery held in the battery holder to test the secondary battery. The battery holder is constituted of a fireproof and pressure resistant container capable of withstanding ignition of the secondary battery. Since an exhaust port is connected to an exhaust pipe which discharges gas in the battery holder when the secondary battery ignites, the exhaust port discharges the gas to the outside of the thermostatic oven to release its pressure.
Absstract of: US2025385328A1
A wiper system for an electrode in an electrochemical cell utilizes a wiper blade in contact with a surface of the electrode, a blade support having a blade mount on which the wiper blade is mounted, the blade support biasing the wiper blade toward the surface of the electrode to provide a uniformly distributed contact force between a surface of the wiper blade and the surface of the electrode, a translatable carriage on which the blade support is mounted, a carriage drive on which the carriage is mounted to translate the carriage through space, and a chassis on which the carriage drive is mounted, the chassis permitting the wiper blade to contact the electrode during operation of the wiper system.
Absstract of: US2025385312A1
An electrochemical apparatus including a cell, the cell including a positive electrode, a negative electrode, an electrolyte, and a separator, where an outermost electrode of the cell has a curved portion and a straight portion, a length of the straight portion is L mm, a radius of the curved portion is D mm, and 5≤L/D≤10; and the electrolyte includes propylene carbonate, and based on a mass of the electrolyte, a percentage of the propylene carbonate is A %, and 5≤A≤15.
Absstract of: US2025385335A1
A dynamically pressurized pouch battery system. One or more pouch batteries are placed in a fixed volume enclosure, which also contains coolant in direct contact with the pouch battery(s). A pump pumps the coolant into and out of the enclosure, thereby varying the pressure exerted by the coolant upon the exterior of the pouch batteries. The pump may cause the coolant to provide more or less pressure depending on battery cell conditions, such as voltage, state-of-charge, age, state-of-health, or temperature.
Absstract of: US2025385318A1
A secondary battery cell includes a battery cell enclosure, an electrolyte, and an electrode assembly. The electrode assembly includes a cathode with a cathode area, an anode, a separator (i) with an anode-facing side and a cathode-facing side, (ii) with a bonding area on the cathode-facing side and completely outside the cathode area, and (iii) configured to physically separate the cathode and the anode, and an adhesive strip applied solely on the cathode-facing side of the separator. The cathode is either partially enclosed or completely enclosed by the separator. The adhesive strip is completely in the bonding area. Two segments of the adhesive strip on opposing sides of the cathode are bonded to each other.
Absstract of: US2025385313A1
An electrochemical device including a cell, where the cell includes a positive electrode, a negative electrode, an electrolyte, and a separator, an outermost electrode of the cell has a curved portion and a straight portion, a length of the straight portion is L mm, a radius of the curved portion is D mm, and 5≤L/D≤10; and the electrolyte includes a dinitrile compound, and based on a mass of the electrolyte, a percentage of the dinitrile compound is A %, and 4≤A≤10.
Absstract of: WO2025255945A1
A battery production line comprises a machine mating structure. The machine mating structure comprises a duct (10) and at least one group of mounting assemblies (40). Each group of mounting assemblies (40) comprises a first flange (41), a second flange (42), an air pump, and a sensor. The first flange (41) is connected to the duct (10), and the second flange (42) is connected to an external device. The first flange (41) and the second flange (42) are in plug-in fit, and a detection cavity (47) is formed between plug-in sections of the first flange (41) and the second flange (42). Two detection holes (46) are formed in at least one of the first flange (41) and the second flange (42), and each detection hole (46) is communicated with the detection cavity (47). One detection hole (46) is connected to the air pump, and the other detection hole (46) is connected to the sensor.
Absstract of: WO2025255950A1
A battery (100) and an electrical device. The battery (100) comprises a plurality of battery cells (20) and heat exchange assemblies (30), wherein the plurality of battery cells (20) are arranged in columns, and the columns of battery cells (20) are arranged in the direction of length or direction of width of the battery (100); each heat exchange assembly (30) is arranged between two adjacent columns of battery cells (20); the heat exchange assembly (30) comprises a support member (31) and two cooling plates (33) arranged on the support member (31), the two cooling plates (33) being attached to a corresponding one of columns of battery cells (20), and the two cooling plates (33) being in communication with each other; the heat exchange assembly (30) comprises a connecting tubing (35), and the two cooling plates (33) in the heat exchange assembly (30) are in communication by means of the connecting tubing (35); and the connecting tubing (35) comprises a first joint (351) and a second joint (352) which are respectively arranged on the two cooling plates (33), the first joint (351) being connected to the second joint (352).
Absstract of: WO2025255869A1
Disclosed in the present utility model is a battery module featuring pressure detection. The battery module comprises: a battery cell assembly, comprising a plurality of battery cells and end plates, the plurality of battery cells being sequentially stacked in an arrangement direction, and each end plate covering the outside of an outermost battery cell in the arrangement direction; a partition plate, the partition plate being provided between two adjacent battery cells in the arrangement direction; and a pressure detector, the pressure detector being used for detecting the pressure of the battery cells. The battery module featuring pressure detection of the present utility model is provided with a pressure detector configured to detect pressure changes when battery cells undergo deformation, thereby monitoring the expansion of the battery cells of the battery module.
Absstract of: WO2025256008A1
Provided in the present application are a cylindrical battery cell, a battery, and an electrical device. The cylindrical battery cell comprises a casing, an electrode assembly, and a binding member. The electrode assembly is accommodated inside the casing and comprises an electrode body and a tab, and the tab is led out from an end portion of the electrode body. The binding member is arranged between the casing and the electrode assembly. The binding member is disposed around an outer peripheral side of the electrode body in the circumferential direction of the electrode body. The binding member has a first end and a second end arranged in the circumferential direction, and the first end and the second end are spaced apart from each other. The cylindrical battery cell provided in the embodiments of the present application helps to improve the reliability performance of cylindrical battery cells.
Absstract of: WO2025256651A1
The present invention relates to the technical field of battery heat dissipation. Provided are a battery system and an electric device. The battery system comprises a case body, a first cold plate, a second cold plate, and a plurality of battery cell modules, wherein the first cold plate and the second cold plate are oppositely arranged on two sides of the case body, and an accommodating cavity is formed among the first cold plate, the second cold plate and the case body; the plurality of battery cell modules are arranged in the accommodating cavity, and a third cold plate is provided in each battery cell module, and is perpendicular to the first cold plate; a cooling channel is formed inside each of the first cold plate, the second cold plate and the third cold plates; and the cooling channels in the third cold plates in the plurality of battery cell modules are in communication with each other. The battery system of the present invention comprises three cold plates, which can increase the heat exchange area and improve the thermal management performance of the battery system.
Absstract of: WO2025256662A1
Provided in the present application are a tab glue, a negative electrode sheet and a lithium-ion battery. The tab glue is an emulsion. The surface tension of the emulsion is 45-60 mN/m, and the viscosity thereof is 2000 mPa·s or more. The tab glue is favorable for reducing the capacity loss of a lithium-ion battery.
Absstract of: WO2025256622A1
An electrode assembly and a battery cell. The electrode assembly comprises: a plurality of positive electrode plates (1) and a plurality of negative electrode plates (2), wherein the positive and negative electrode plates are alternately stacked; and separators (3), wherein the separators are each arranged between a positive electrode plate (1) and a negative electrode plate (2) which are adjacent to each other. Each positive electrode plate (1) comprises a main body and a positive tab (101) arranged on one side of the main body; each negative electrode plate (2) has a negative tab (201) spaced apart from the positive tab (101); each main body has a conductive region (100) and an insulating region (200); the insulating region (200) is arranged at the edge of the side of the conductive region (100) having the positive tab (101), and the insulating region (200) protrudes from the negative electrode plate (2); and a clearance recess (102) is provided on the insulating region (200), and the clearance recess (102) is configured to provide clearance for the root of the bent negative tab (201). The electrode assembly of the present disclosure not only facilitates bending the negative tab (201), but also facilitates reducing the risk of the positive electrode plate (1) being pressed by the bent negative tab (201), and also facilitates reducing the effect on the capacity of the battery cell.
Absstract of: WO2025256616A1
Provided in the present application are a battery-pack cooling system and a battery pack. In the battery-pack cooling system, liquid cooling plates (1) are each provided with a coolant flow channel (11), which is configured for the flow of a coolant; the coolant in the coolant flow channels (11) can exchange heat with battery modules of a battery pack, and the coolant can flow through a liquid intake pipe assembly (2), the coolant flow channels and a liquid output pipe assembly (3) in sequence; and the liquid intake pipe assembly (2) comprises a main liquid intake pipe (21) and a first communication pipe (22), the main liquid intake pipe (21) being configured for the entry of the coolant, and the first communication pipe (22) being connected to the main liquid intake pipe (21) and being configured to divide the coolant into two parts, with one part flowing to one of the liquid cooling plates (1) located in the middle, and the other part flowing to the other liquid cooling plates (1).
Absstract of: US2025385326A1
A battery includes an enclosure having a longitudinal body section and a lateral body section extending from and normal to the longitudinal body section, where an intersection of the longitudinal body section and the lateral body section defines an interior corner. The battery also includes electrodes disposed within the enclosure. The battery also includes a battery management unit (BMU), where at least a portion of the BMU is disposed external to the enclosure and adjacent to the interior corner.
Absstract of: US2025385341A1
The present disclosure relates to an insulation sheet, and is directed to an insulation sheet improving heat propagation when heat propagation occurs within a battery module. The present disclosure provides an insulating sheet including two first layers, and a second layer located between the two first layers and including an insulation material, wherein at least one surface of the insulation sheet is formed with a bending portion.
Absstract of: US2025385340A1
The present disclosure relates to a heat insulating sheet for a rechargeable lithium battery, and a rechargeable lithium battery module including the heat insulating sheet. The heat insulating sheet for a rechargeable lithium battery includes a first base layer, an aerogel-containing layer, and a second base layer that are stacked together. The aerogel-containing layer includes a thermally conductive material-containing region, and a thermally conductive material is dispersed at high density in the thermally conductive material-containing region.
Absstract of: US2025385331A1
A method for recycling a waste lithium-ion secondary battery includes (a) loading an object to be heat-treated into a heat-treatment furnace, the object being at least a part of a waste lithium-ion secondary battery in which lithium iron phosphate powder is a positive electrode material, and including the positive electrode material, (b) increasing the temperature inside the heat-treatment furnace to a range of 200° C. to 400° C., (c) maintaining the increased temperature to heat treat the object to be heat-treated, and (d) discharging first powder produced after the completion of the heat treatment, wherein the first powder includes recycled lithium iron phosphate powder.
Absstract of: US2025385316A1
A positive active material for a nonaqueous electrolyte secondary battery is provided. The positive active material contains a lithium-transition metal composite oxide. The lithium-transition metal composite oxide has an α-NaFeO2-type crystal structure. The lithium-transition metal composite oxide is represented by the general formula Li1+αMe1−αO2 where 0<α, Me is a transition metal element containing Ni and Mn, or containing Ni, Mn, and Co, a molar ratio Mn/Me of Mn to Me meets Mn/Me≥0.45. The positive active material has a ratio a/b of 17≤a/b≤25 between a discharge capacity (a) from 4.35 V (vs. Li/Li+) to 3.0 V (vs. Li/Li+) and a discharge capacity (b) from 3.0 V (vs. Li/Li+) to 2.0 V (vs. Li/Li+).
Absstract of: WO2025255921A1
An expansion beam (2), a box assembly (101), a battery (100) and an electric device (1000). The expansion beam (2) comprises a first beam body (21) and a second beam body (22), wherein the first beam body (21) has a first side (21a) and a second side (21b) which are opposite each other; at least one of the first side (21a) and the second side (21b) is adapted to be arranged towards a battery cell (4); the first beam body (21) comprises a first main body portion (211), a first flange portion (212) and a second flange portion (213); the first flange portion (212) extends from the first main body portion (211) in a direction close to the second flange portion (213) so as to close at least part of an open end of a first cavity (211a); the second flange portion (213) extends from the first main body portion (211) in a direction away from the first flange portion (212); the second beam body (22) at least covers at least one of the first side (21a) and the second side (21b) of the first beam body (21), so as to separate the first beam body (21) from the battery cell (4); and thermal insulation and electrical insulation properties of the second beam body (22) are both superior to that of the first beam body (21).
Absstract of: WO2025255964A1
A lithium-ion battery positive electrode material, a preparation method therefor, and a use thereof. The preparation method comprises the following steps: (1) mixing an elemental metal with a phosphoric acid solution and reacting to obtain a metal phosphate solution, wherein the elemental metal comprises elemental iron and/or elemental manganese; (2) mixing the metal phosphate solution, a lithium-containing solution, and a pH regulator solution and thermally reacting to obtain a reaction product; and (3) mixing the reaction product with a carbon source and sintering to obtain the lithium-ion battery positive electrode material. In the preparation method, ferrous dihydrogen phosphate or manganese dihydrogen phosphate generated by inexpensive metal iron or manganese reacting with phosphoric acid is used as a reaction raw material, the reaction raw material reacts with a lithium-containing solution at a low temperature under the action of a pH regulator, and subsequent sintering is performed to obtain a lithium iron (manganese) phosphate positive electrode material having a stable structure and excellent performance. Moreover, the preparation method involves simple operations, has low cost, and is suitable for industrial application.
Absstract of: WO2025255917A1
A battery cell feeding device, a packaging apparatus, and a battery production system. The battery cell feeding device comprises: a transfer platform (100) having a placement portion (110) for placing a battery cell (900) thereon; and a lifting mechanism (200) comprising a plurality of material-receiving members (210) distributed at intervals, wherein all of the material-receiving members (210) can pass through the placement portion (110) and ascend and descend relative to the placement portion (110), so as to bear the battery cell (900) at a preset position and release the battery cell (900) onto the placement portion (110). When ascending to bear the battery cell, the material-receiving members can be offset from a clamping member on the battery cell so as to avoid interfering with the structure of the clamping member; and during the descending and resetting process, the material-receiving members release the battery cell onto the placement portion to complete the feeding of the battery cell, enabling the transfer platform to smoothly transfer the battery cell to a packaging station, thereby improving the positioning accuracy of the feeding of the battery cell, and thus improving the packaging quality and packaging efficiency of the battery cell.
Absstract of: WO2025259696A1
Systems and methods utilizing aqueous-based polymer binders for silicon-based anodes may include an electrode coating layer on a current collector, where the electrode coating layer is formed from a silicon carbon composite or SiOx-based or Si- Carbon-SiOx-based powder and a water soluble polymer and may comprise one or more additional materials. The anode may be in a lithium ion battery.
Absstract of: WO2025259532A1
Wirelessly rechargeable battery systems are described. The wirelessly rechargeable batteries have a standardized consumer form factor, such as AAA, AA, C, D, or the like and can be used in consumer devices designed to operate using such consumer batteries. The wirelessly rechargeable batteries may be wirelessly recharged without removing the batteries from the consumer device by placing the consumer device (containing the batteries) near a wireless recharger.
Nº publicación: WO2025259424A1 18/12/2025
Applicant:
UNIV OF PUERTO RICO [US]
UNIVERSITY OF PUERTO RICO
Absstract of: WO2025259424A1
Disclosed herein is a battery (e.g., a Li-ion battery) comprising: an anode comprising bismuth ferrite and a binder; a cathode; and an electrolyte comprising a lithium compound and a fluoroethylene carbonate (FEC) additive. Batteries with a bismuth ferrite anode having a carboxymethyl cellulose (CMC) binder and a lithium-containing electrolyte with FEC additive, show a capacity of up to 750 mAh/g at 100 mA/g and high capacity retention, with over 400 mAh/g at 500 mA/g after 1,000 cycles.
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