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1450
results.
Updated on
18/07/2025 [07:37:00]
Results 750 to 775 of 1450
Absstract of: EP4583185A1
An object of the present invention is to provide a positive electrode capable of achieving both a high energy density and a long life of a lithium ion secondary battery. The positive electrode for the lithium ion secondary battery of the present invention includes a positive electrode current collector; and a positive electrode active material layer laminated on the positive electrode current collector, in which the positive electrode active material layer includes a positive electrode first active material layer laminated on the positive electrode current collector, and a positive electrode second active material layer laminated on the positive electrode first active material layer, the positive electrode first active material layer includes a positive electrode first active material containing a lithium-containing composite oxide containing Li and Ni as a main component, the positive electrode second active material layer includes a positive electrode second active material containing a lithium-containing composite oxide containing Li and Ni as a main component, and a molar fraction of Ni in the positive electrode second active material of the positive electrode second active material layer is smaller than the molar fraction of Ni in the positive electrode first active material of the positive electrode first active material layer.
Absstract of: EP4583179A1
An object of the present invention is to provide a negative electrode for a lithium ion secondary battery capable of achieving an improvement in a charging performance and long life of the battery. The negative electrode for a lithium ion secondary battery of the present invention includes a negative electrode current collector, a negative electrode active material layer laminated on the negative electrode current collector, in which the negative electrode active material layer includes a negative electrode first active material layer laminated on the negative electrode current collector and a negative electrode second active material layer laminated on the negative electrode first active material layer, in which the negative electrode first active material layer includes a negative electrode first active material, and the negative electrode second active material layer includes a negative electrode second active material, and in which a BET specific surface area of the negative electrode second active material is larger than the BET specific surface area of the negative electrode first active material.
Absstract of: CN119698697A
The invention relates to a polymer comprising or consisting essentially of monomeric units derived from 1, 3-butadiene, acrylonitrile and optionally methacrylic acid, the weight content of monomeric units derived from 1, 3-butadiene being at most 65 wt.-% relative to the total weight of the polymer. The polymer can be used to make cathodes for battery cells. The invention further relates to a cathode of a battery cell comprising the polymer and to a composition comprising the polymer and gamma-valerolactone.
Absstract of: AU2023332289A1
The present invention relates to a method for recovering lithium from a stream containing lithium, the method comprising contacting the stream, or a pre-treated solution obtained from said stream, with an aluminium-containing material to form a precipitate comprising lithium aluminate, at an alkaline pH; and recovering a slurry of said lithium aluminate.
Absstract of: WO2024047036A1
A heat storage unit and heat exchanger has a first fluid line, a second fluid line, a heat exchanger and a storage container. The heat exchanger is designed to transfer heat between the first fluid line and the second fluid line. The storage container is designed to receive a thermal storage medium. At least a portion of the heat exchanger is arranged in the storage container in order to allow heat transfer between the heat exchanger and the thermal storage medium.
Absstract of: WO2024046889A1
The present invention relates to a method for reconditioning lithium-containing energy accumulators, the method comprising at least the following method steps: i) possibly pretreating the lithium-containing energy accumulator, with the pretreatment comprising at least one of the following: thermal, mechanical and electrical pretreatment; ii) pyrolyzing the possibly pretreated lithium-containing energy accumulator, with the release of carbon dioxide, and with at least partial carbonation, under a carbon-dioxide atmosphere, of the lithium contained; iii) separating lithium in a separating step; and iv) hydrometallurgically reconditioning the mixture obtained in method step iii), with further carbonation of the lithium contained and with separation of lithium in a further separating step, with v) carbon dioxide released in method step ii) being returned in at least one of method steps ii) and iii).
Absstract of: WO2024046830A1
The invention relates to a monocell stack for a battery cell, having a number of monocells (M) stacked one above the other in the stacking direction, each of which monocells (MS) is assembled from, in alternation in the stacking direction, an electrode sheet (K), a separator sheet (S1), a mating electrode sheet (A) and a further separator sheet (S2). According to the invention, the two separator sheets (S1, S2) are components of a double sheet layer (D), which are folded around the electrode sheet (K) in a U-fold along a folding edge (11). The mating electrode sheet (A) is arranged on the outer side of one of the separator sheets (S1, S2).
Absstract of: EP4583214A1
The present invention relates to an apparatus for heating an electrode sheet, the apparatus including: a heating part provided to heat a bottom surface of a predetermined area of the electrode sheet fed in a predetermined feeding direction, wherein the electrode sheet is wound to be manufactured as each of wound type electrodes of a jelly-roll-type electrode assembly, wherein the predetermined area includes one area of the electrode sheet which corresponds to an end area disposed on an outermost end of the wound type electrode of the jelly-roll-type electrode assembly, or when a stepped portion is generated between outer ends of the wound type electrodes due to a length difference between the wound type electrodes of the jelly-roll-type electrode assembly, the predetermined area includes one area of the electrode sheet which corresponds to an area, on which the stepped portion is generated, of one of the wound type electrodes.
Absstract of: EP4583276A1
The present disclosure includes a battery pack and a device including the same. The battery pack according to an embodiment of the present disclosure includes a first pack case for mounting a plurality of battery modules that house a battery cell stack; a second pack case disposed while covering the plurality of battery modules; and an inflow port provided at an upper end of the second pack case, wherein the inflow port is connected to a flow path that transmits a fire extinguishing liquid injected from the outside.
Absstract of: EP4583301A1
This application discloses a battery and an electrical device. The battery includes an electrode plate and tab. The electrode plate includes a current collector and an active material layer disposed on the current collector. The tab is connected to the current collector. The tab protrudes beyond the electrode plate along a width direction of the electrode plate. Along the width direction of the electrode plate, the tab includes a first region and a second region. The first region is located between the second region and the active material layer, a thickness of the first region is t1, and a thickness of the second region is t2, satisfying: 0.5% ≤ (t1 - t2)/t1 ≤ 5%.
Absstract of: WO2024047598A1
The present disclosure relates to a system (100) for manufacturing spheroidized graphite powder, the system includes a feeder (104) adapted to convey primarily crushed particles to a grinding section (106). A first classifier (108) is located at the top portion of the chamber and is configured to receive the milled particles and adapted to separate the milled particles into a first particle and a second particle. A controller (112) operatively coupled to the one or more motors (110), the controller configured to operate the one or more motors at progressively varying RPM, at higher RPM it cuts the rough edges of the particle to form the first fine graphite particle and second shaped graphite particle and when the it RPM decreased to lower level, the surface smoothening of shaped particle process occurs, which results smooth surfaced spherical graphite.
Absstract of: AU2025200934A1
- 78 Lead-acid batteries or cells, electrodes and bipolar plates for the same, and methods of 5 manufacturing the same are provided. The lead-acid batteries comprise a positive and/or negative electrode having a specific pore size diameter distribution. The pore size diameter distribution may comprise: a ratio of a volume of pores having a pore size diameter greater than 20 m to a total pore volume of at least 15%; or a volume of pores having a pore size diameter greater than 20 m of at least 0.020 ml/g.
Absstract of: EP4583251A1
A battery heating device comprises a controller, a power battery, a target winding and a target bridge arm. The power battery comprises a first battery module and a second battery module. A first end of the target winding is connected to a negative electrode of the first battery module and a positive electrode of the second battery module, and a second end of the target winding is connected to the midpoint of the target bridge arm. A first end of the target bridge arm is connected to a positive electrode of the first battery module, and a second end of the target bridge arm is connected to a negative electrode of the second battery module. The controller is connected to the target bridge arm, and is configured to: control, in a parking heating mode, the target bridge arm to cause the first battery module and the second battery module to charge and discharge alternately, thereby heating the power battery.
Absstract of: EP4583195A1
Embodiments of the present disclosure disclose a low-cost alkaline secondary battery positive electrode material and a preparation method and application thereof, which belongs to the technical field of alkaline secondary battery. The key points of the technical solution of the present disclosure is one of positive electrode active material of a low-cost alkaline secondary battery and s a composite positive electrode material including manganese dioxide and partially oxidized layered hydroxide, a composite positive electrode material including manganese dioxide and layered hydroxide, or a composite positive electrode material including manganese dioxide, conductive material, and one of layered hydroxide, partially oxidized layered hydroxide, or layered hydroxide. A method for preparing a zinc negative electrode material for the low-cost alkaline secondary battery and a zinc nickel secondary battery using the negative electrode material are provided. The composite positive electrode material prepared by the present disclosure has the advantage of a high discharge platform, high capacity, and good cycling stability, or the like, with respect to a conventional manganese electrode, which significantly improves the cycling stability and reversibility of the zinc-manganese alkaline secondary battery and improves the cycling life.
Absstract of: CN119790529A
The invention relates to a cover assembly for a cell housing of an energy storage cell wherein the cover assembly is arranged in an installed state to be able to fill the cell housing with an electrolyte wherein the cover assembly comprises: (i) an end plate having a fixing assembly comprising an opening, (ii) wherein the end plate further comprises a circumferential groove; (iii) a first closing element, which is arranged to close the opening before filling the cell housing and is penetrated by a filling element, by means of which an electrolyte can be filled into the cell housing, in order to fill the cell housing; (iv) a second closure element arranged to close the opening after filling the cell housing; (v) wherein the circumferential recess is arranged such that, when a specific overvoltage is reached or exceeded in the cell housing, the end plate can be split in the region of the recess such that the electrolyte can be discharged at least partially through the split region.
Absstract of: CN119547259A
A rechargeable battery as an energy supply for a power tool has at least a first energy storage element and a second energy storage element. Comprising at least a first retention device for receiving and retaining at least a first energy storage element and at least a second retention device for receiving and retaining at least a second energy storage element, at least a sub-region of the outer surface of at least the first retention device and/or the second retention device is configured such that at least one gap for a cooling fluid is provided between adjacent retention devices. A power tool having at least one rechargeable battery.
Absstract of: EP4583357A1
According to an embodiment, an electronic device may comprise: a charging circuit for charging a battery; a motion sensor; a memory; and a processor operatively connected to the charging circuit, the motion sensor, and the memory. The processor may control the charging circuit to perform a charging function for the battery on the basis of a first charging frequency. The processor may change the first charging frequency to a second charging frequency in response to an execution when at least one of a function related to the motion sensor, an instruction related to the motion sensor, and an application including the instruction is executed. The processor may control the charging circuit to perform a charging function for the battery on the basis of the second charging frequency. Various other embodiments may be possible.
Absstract of: EP4583304A1
A manufacturing device 41 includes a fluid injection nozzle 43 that is pressed against a periphery of an opening 31A of a communication hole 31 on a side surface 23s of a sealing body 3 and injects a fluid F into each of a plurality of internal spaces S via the communication hole 31, a first restraining member 44 that restrains a first region F1 provided with the plurality of communication holes 31 in the sealing body 3, and a second restraining member 45 that is provided independently of the first restraining member 44 and restrains a second region F2 including the internal space S in a stacking direction.
Absstract of: EP4583206A1
A manganese-based solid solution positive-electrode material, wherein the manganese-based solid solution positive-electrode material has a layered structure, and a chemical formula of the manganese-based solid solution positive-electrode material is aNa2MnxRi1-xO3-(1-a)LiMnγM1-γO2, where 0.05 ≤ a < 1, 0 < x ≤ 1, 0.1 ≤ y ≤ 1, and each of the R and the M in the chemical formula independently comprises any one or combination of at least two of: alkali metal elements, alkaline earth metal elements, and transition metal elements.
Absstract of: EP4583186A1
The present specification discloses an electrode and a use thereof. The electrode comprises a polymer layer showing a PCT (positive temperature coefficient) effect and an oxidation potential, which are controlled according to objectives. Such an electrode cannot affect or can rather improve, in a normal state, performance and operation of a secondary battery by exhibiting excellent electrical properties such as low resistance, and can ensure, in an abnormal state, stability. The present specification also discloses a use of the electrode.
Absstract of: EP4583260A1
A battery shell, a battery cell and a large-capacity battery, which mainly solve the problem of poor performance of existing large-capacity batteries. The battery shell is provided with a first through hole and is also provided with a pipeline covering the first through hole and extending along a thickness direction of the battery shell, the pipeline is provided with a second through hole on a pipe body, and the first through hole communicates with the second through hole. An electrolyte sharing channel of a large-capacity battery is formed through the pipeline, and battery cells in the large-capacity battery may be in a unified electrolyte environment, thereby improving the performance of the large-capacity battery.
Absstract of: EP4583291A1
Provided are a battery pack thermal runaway flue gas treatment system and a battery pack, which mainly solve the problem of the high cost of an existing battery thermal runaway flue gas treatment method. The battery pack thermal runaway flue gas treatment system comprises a thermal runaway flue gas treatment assembly, wherein the thermal runaway flue gas treatment assembly comprises a pressure relief pipe and an exhaust pipe; one end of the pressure relief pipe communicates with an explosion vent of a battery, and the other end of the pressure relief pipe is connected with the exhaust pipe; one end of the exhaust pipe that is disposed within a box body is connected with the pressure relief pipe, and the other end of the exhaust pipe is disposed at a top end of the box body by passing through the box body; and a height of the exhaust pipe disposed outside the box body is H. Each component of the system has a simple structure, and the cost of the system is very low. Furthermore, the exhaust pipe is disposed at the top end of the box body by passing through the box body, such that a safe distance is formed between battery thermal runaway flue gas and the battery, causing the discharged thermal runaway flue gas to not affect the battery.
Absstract of: EP4582306A1
A battery self-heating system, the system comprising: a power battery pack (21), a first heating module (22), a second heating module (23) and a controller (24), wherein the power battery pack (21) comprises a first battery group (E1) and a second battery group (E2), which are connected in series; the first heating module (22) comprises a first heating sub-module (221) and a second heating sub-module (222); the second heating module (23) comprises a third heating sub-module (231) and a fourth heating sub-module (232); and the controller (24) is configured to: control the first heating module (22) and the first battery group (E1) to alternately charge and discharge, control the second heating module (23) and the second battery group (E2) to alternately charge and discharge, and control, when one of the first battery group (E1) and the second battery group (E2) is in a discharged state, the other of the first battery group (E1) and the second battery group (E2) to be in a charged state.
Absstract of: EP4582149A1
A fire-fighting foam foaming apparatus, system and method, relating to the technical field of compressed air foam fire suppression, and used for improving the foaming effect. The fire-fighting foam foaming apparatus comprises: an air nozzle assembly, comprising a liquid inlet hole, an air inlet hole, a first air outlet hole, and a flow guiding portion; the liquid inlet hole being in fluid communication with a first flow path, and the liquid inlet hole being located downstream of the first flow path; the air inlet hole being in fluid communication with a second flow path; and a foam mixing chamber, located downstream of the first flow path and the second flow path and in fluid communication with both the first flow path and the second flow path; both the first air outlet hole and the flow guiding portion extending into the foam mixing chamber. The foaming effect is improved.
Nº publicación: EP4580789A1 09/07/2025
Applicant:
OXYPHEN GMBH [DE]
Oxyphen GmbH
Absstract of: CN119630472A
The present invention provides a gas-tight film for use as a rupture film, in particular for emergency venting in connection with batteries, such as for automobiles, electric bicycles, handheld devices, electronic cigarettes, energy storage devices or heavy tools. The film comprises a base film having an indentation obtained by an incomplete track etch treatment applied to the base film. In addition, the present invention provides a method of preparing a hermetic film by applying an incomplete track etching treatment to both sides of a base film.
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