A negative electrode active material and a preparation method therefor, a negative electrode sheet, a lithium-ion battery, and an electric device. The lithium-ion battery comprises one or more battery cells (5), the battery cell (5) comprises a negative electrode sheet, the negative electrode sheet comprises a negative electrode current collector and a negative electrode film layer located on at least one surface of the negative electrode current collector, and the negative electrode film layer comprises a negative electrode active material. The negative electrode active material comprises an inner core and a coating layer located on at least part of the surface of the inner core, wherein the inner core comprises graphite, and the coating layer comprises amorphous carbon; and in the cumulative distribution curve of the R value of the negative electrode active material obtained in the area scanning mode of a laser microscopic confocal Raman spectrometer, the concentration degree of the R value is less than or equal to 2.0.
A negative electrode active material and a preparation method therefor, a negative electrode sheet, a lithium-ion battery, and an electric device. The lithium-ion battery comprises one or more battery cells (5), the battery cell (5) comprises a negative electrode sheet, the negative electrode sheet comprises a negative electrode current collector and a negative electrode film layer located on at least one surface of the negative electrode current collector, and the negative electrode film layer comprises a negative electrode active material. The negative electrode active material comprises an inner core and a coating layer located on at least part of the surface of the inner core, wherein the inner core comprises graphite, and the coating layer comprises hard carbon; and in the cumulative distribution curve of the R value of the negative electrode active material obtained in the area scanning mode of a laser microscopic confocal Raman spectrometer, from the lower limit, the R value of R50 having a cumulative distribution of 50% is 0.15-0.40. The negative electrode active material can make the battery have both a high energy density, and good dynamic performance and cycle performance.
The present application relates to a battery pack and an electrical apparatus. The battery pack comprises a battery box and a first battery cell and a second battery cell disposed in the battery box, wherein a heat dissipation capability at a position where the first battery cell is located is greater than a heat dissipation capability at a position where the second battery cell is located, an addition amount W1 of a lithium replenishing agent in the first battery cell is greater than an addition amount W2 of the lithium replenishing agent in the second battery cell, W1 > 0, and W2 ≥ 0.
The present application provides a negative electrode plate, comprising: a current collector; a first active material layer arranged on at least one surface of the current collector; and a second active material layer arranged on a surface of the first active material layer away from the current collector; wherein the first active material layer comprises a first active material, the second active material layer comprises a second active material, and the second active material has a lithiation potential and a delithiation potential higher than those of the first active material. The negative electrode plate according to the present application is capable of improving the safety and cycling performance of the secondary battery.
H01M 4/133 - Électrodes à base de matériau carboné, p. ex. composés d'intercalation du graphite ou CFx
H01M 4/1393 - Procédés de fabrication d’électrodes à base de matériau carboné, p. ex. composés au graphite d'intercalation ou CFx
H01M 4/485 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques d'oxydes ou d'hydroxydes mixtes pour insérer ou intercaler des métaux légers, p. ex. LiTi2O4 ou LiTi2OxFy
H01M 4/583 - Matériau carboné, p. ex. composés au graphite d'intercalation ou CFx
6.
SAFETY REGULATION MECHANISM AND METHOD, BATTERY SYSTEM AND ELECTRICAL APPARATUS
The present application provides a safety regulation mechanism and method, a battery system and an electrical apparatus, which can improve the safety performance of a battery. The safety regulation mechanism is configured to perform a safety regulation on a battery. The safety regulation mechanism comprises: a variable voltage generation module and a safety member. The variable voltage generation module is configured to establish a target voltage difference between the safety member and the battery, the target voltage difference causing the safety member to perform the safety regulation on the battery when an abnormality of the battery occurs. Through this solution, the variable voltage generation module in the safety regulation mechanism can actively establish a target voltage difference between the safety member and the battery, and the actively established target voltage difference can be flexibly adjusted according to actual requirements to adapt to different abnormal conditions of the battery. When an abnormality of the battery occurs, the controllable and accurate target voltage difference can cause the safety member to perform the safety regulation on the battery in a timely manner, so as to improve the safety performance of the battery.
Some embodiments of this application provide a battery, an electrical device, and a method and equipment for manufacturing a battery. The battery includes: a battery cell, including a pressure relief mechanism, where the pressure relief mechanism is disposed on a first wall of the battery cell, and the pressure relief mechanism is configured to be actuated to relieve an internal pressure when the internal pressure or an internal temperature of the battery cell reaches a threshold; an attachment component, where a first surface of the attachment component is attached to the first wall, a first through-hole located corresponding to the pressure relief mechanism is created in the attachment component, and the first through-hole is configured to make emissions from the battery cell pass through the attachment component upon actuation of the pressure relief mechanism; and an insulation component, where at least a part of the insulation component abuts and covers an inner wall of the first through-hole to dielectrically protect the inner wall of the first through-hole. The foregoing technical solution enhances the battery safety.
H01M 50/209 - Bâtis, modules ou blocs de multiples batteries ou de multiples cellules caractérisés par leur forme adaptés aux cellules prismatiques ou rectangulaires
The present application provides a battery module, a battery, and an electrical apparatus, and belongs to the technical field of batteries. Herein, the battery module comprises a first guard and a plurality of battery cells. The plurality of battery cells are arranged along a first direction, one end of the battery cell in a second direction is provided with a pressure relief mechanism, wherein the second direction is perpendicular to the first direction; and the pressure relief mechanism is configured to release the internal pressure of the battery cell when the internal pressure or temperature of the battery cell reaches a threshold value. The first guard comprises a first guarding portion covering the end of the plurality of battery cells provided with the pressure relief mechanism, a plurality of venting ports are provided on the first guarding portion, and the venting port and the pressure relief mechanism are provided in a staggered way in the second direction. In a battery with such a battery module, the phenomenon that the hot gas rushing out of the pressure relief mechanism directly impacts the box body when the battery cell is in thermal runaway can be reduced through the first guard, so that the possibility of melting or spontaneous combustion of the box body of the battery can be alleviated, which is in favor of reducing the use risk of the battery.
H01M 50/244 - Boîtiers secondairesBâtisDispositifs de suspensionDispositifs de manutentionSupports caractérisés par leur procédé de montage
H01M 50/249 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports spécialement adaptés aux aéronefs ou aux véhicules, p. ex. aux automobiles ou aux trains
H01M 50/30 - Aménagements pour faciliter l’échappement des gaz
9.
A/M/X CRYSTALLINE MATERIAL, PHOTOVOLTAIC DEVICE, AND PREPARATION METHODS THEREOF
This application provides an A/M/X crystalline material, a photovoltaic device, and preparation methods thereof. The photovoltaic device includes a photoactive crystalline material layer. The photoactive crystalline material layer includes a penetrating crystal, where the penetrating crystal is a crystal penetrating through the photoactive crystalline material layer, and a percentage p of a quantity of penetrating crystals in a total quantity of crystals of the photoactive crystalline material layer is ≥80%. The photoactive crystalline material layer includes a backlight side and a backlight crystal, where the backlight crystal is a crystal exposed to the backlight side and has a backlight crystal face exposed to the backlight side. At least one region of the backlight side has an average flatness index Ravg being ≤75.
H10K 30/15 - Dispositifs à semi-conducteurs sensibilisés à large bande interdite, p. ex. TiO2sensibilisé aux colorants
H10K 30/40 - Dispositifs organiques sensibles au rayonnement infrarouge, à la lumière, au rayonnement électromagnétique de plus courte longueur d'onde ou au rayonnement corpusculaire comprenant une structure p-i-n, ayant p. ex. un absorbeur pérovskite entre des couches de transport de charge de type p et de type n
Embodiments of the present application provide a battery and an electrical device. The battery comprises: a battery cell, a first wall of the battery cell being provided with a first pressure relief mechanism; a thermal management component for regulating the temperature of the battery cell, wherein the thermal management component is attached to a second wall of the battery cell, the second wall being different from the first wall and the area of the second wall being greater than or equal to that of the first wall; and a discharge pathway configured to be capable of getting in communication with the interior of the battery cell via the first pressure relief mechanism when the first pressure relief mechanism is actuated, so that emissions of the battery cell are discharged to the discharge pathway. The battery and the electrical device of embodiments of the present application can improve the safety of the battery.
H01M 10/60 - Chauffage ou refroidissementCommande de la température
H01M 50/249 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports spécialement adaptés aux aéronefs ou aux véhicules, p. ex. aux automobiles ou aux trains
Embodiments of the present application provide a battery and an electrical device. The battery comprises: a box body (11) including an electrical cavity (11a); a battery cell (20) accommodated in the electrical cavity (11a) and provided with a pressure relief mechanism (213) on a first wall (21a) of the battery cell (20); a first passage (15) and a second passage (16), the first passage (15) and the second passage (16) being configured to be able to communicate with the inside of the battery cell (20) through the pressure relief mechanism (213) when the pressure relief mechanism (213) is actuated, wherein the first passage (15) is used to discharge the emissions discharged from the pressure relief mechanism (213) into the electrical cavity (11a), and the second passage (16) is used to discharge the emissions discharged from the pressure relief mechanism (213) out of the electrical cavity (11a). The battery and the electrical device of the embodiments of the present application can improve the safety of batteries.
H01M 50/209 - Bâtis, modules ou blocs de multiples batteries ou de multiples cellules caractérisés par leur forme adaptés aux cellules prismatiques ou rectangulaires
Provided in the embodiments of the present application is a battery. The battery comprises: a case, wherein the case comprises an electrical cavity; a battery cell accommodated in the electrical cavity, wherein a first wall of the battery cell is provided with a pressure relief mechanism; a first passage and a second passage, wherein the first passage and the second passage are configured to communicate with the interior of the battery cell via the pressure relief mechanism when the pressure relief mechanism is actuated, the first passage is configured to discharge emissions discharged by the pressure relief mechanism into the electrical cavity, and the second passage is configured to discharge the emissions discharged from the pressure relief mechanism out of the electrical cavity; a first balance valve configured to discharge the emissions passing through the first passage out of the case; and a second balance valve configured to discharge the emissions passing through the second passage out of the case. The battery and the power consuming apparatus provided by the embodiments of the present application can improve the safety performance of the battery.
Embodiments of the present application provide a safety control mechanism and method, a battery system, and an electrical apparatus, which are capable of improving the safety performance of a battery. The safety control mechanism is used for performing safety control on a battery. The safety control mechanism includes: a voltage generation module and a safety member; the voltage generation module is used for establishing a voltage difference between the safety member and the battery, and when the battery is abnormal, the voltage difference causing the safety member to perform safety control. Through the technical solution, in addition to the safety member, the safety control mechanism may further include the voltage generation module, which may be used for actively establishing the voltage difference between the safety member and the battery, and the actively established voltage difference is capable of being generated based on actual needs, and causing the safety member to perform safety control on the battery in time, so as to eliminate or prevent potential safety hazards in the battery, thereby performing timely and effective safety control on the battery to improve the safety performance of the battery.
A62C 3/16 - Prévention, limitation ou extinction des incendies spécialement adaptées pour des objets ou des endroits particuliers dans les installations électriques, p. ex. chemins de câbles
H01M 10/48 - Accumulateurs combinés à des dispositions pour mesurer, tester ou indiquer l'état des éléments, p. ex. le niveau ou la densité de l'électrolyte
H01M 50/383 - Moyens pare-flammes ou moyens de prévention de l’allumage
Embodiments of the present application provide a battery and an electrical device. The battery includes: a battery cell, a first wall of the battery cell being provided with a pressure relief mechanism; a thermal management component configured to regulate the temperature of the battery cell, the thermal management component being attached to a second wall of the battery cell, and the second wall being different from the first wall; and a bus component configured to be electrically connected to an electrode terminal of the battery cell, the electrode terminal being arranged on a third wall of the battery cell, and the third wall being different from the first wall. Therefore, by arranging the bus component and the thermal management component on a different side from the pressure relief mechanism, not only can emissions from the battery cell be kept away from the bus component when the pressure relief mechanism is actuated, preventing the battery from short-circuiting, but the emissions from the battery cell can also be prevented from damaging the thermal management component, so that the thermal management component can continuously and normally regulate the temperature of the battery cell, improving the safety of the battery.
Embodiments of the present application provide a battery and an electrical apparatus. The battery includes: a battery cell, a first wall of the battery cell being provided with a pressure relief mechanism; a thermal management component configured to regulate the temperature of the battery cell, the thermal management component being attached to a second wall of the battery cell, and the second wall being different from the first wall; and a box body, the box body including an electrical cavity and a collection cavity, wherein the electrical cavity is configured to accommodate the battery cell and the thermal management component, and the collection cavity is configured to collect emissions from the battery cell when the pressure relief mechanism is actuated. The battery and the electrical apparatus of the embodiments of the present application can improve the safety of the battery.
Embodiments of the present application provide a box of a battery, a battery, a power consumption apparatus, and a method and apparatus for producing a battery. The box includes: an electrical chamber configured to accommodate a battery cell, a pressure relief mechanism being disposed on a first wall of the battery cell, and the pressure relief mechanism being configured to be actuated when an internal pressure or temperature of the battery cell reaches a threshold, to relieve the internal pressure; a collecting chamber configured to collect emissions from the battery cell when the pressure relief mechanism is actuated, the collecting chamber being isolated from the electrical chamber; and a first thermal management component configured to accommodate a fluid to adjust a temperature of the battery cell, the first thermal management component being attached to a second wall of the battery cell, and the second wall being different from the first wall. According to technical solutions of the embodiments of the present application, safety of the battery could be enhanced.
H01M 50/209 - Bâtis, modules ou blocs de multiples batteries ou de multiples cellules caractérisés par leur forme adaptés aux cellules prismatiques ou rectangulaires
A battery (10), an electrical apparatus, a method (600) for preparing a battery (10), and an apparatus (700) for preparing a battery (10). The battery (10) comprises: a plurality of battery cells (20), which comprise a first battery cell (20a) and a second battery cell (20b), pressure relief mechanisms (213) being provided on a first wall (201a) of the first battery cell (20a) and a second wall (202b) of the second battery cell (20b); a thermal management component (30), which is used for containing a fluid so as to regulate the temperature of the plurality of battery cells (20), the thermal management component (30) being attached to the first wall (201a) of the first battery cell (20a) and a first wall (201b) of the second battery cell (20b), and the thermal management component (30) being provided with a pressure relief area (301) at a position corresponding to the pressure relief mechanism (213) of the first battery cell (20a) and being used to discharge the emission of the first battery cell (20a) when the pressure relief mechanism (213) of the first battery cell (20a) is actuated.
Provided in the embodiments of the present application are a battery box, a battery, an electric apparatus, and a method and apparatus for preparing a battery. The battery box comprises: an electrical cavity for accommodating a plurality of battery cells, wherein a first wall of each battery cell is provided with a pressure relief mechanism; a collecting cavity for collecting emissions from the battery cells when the pressure relief mechanisms are actuated; an isolating component for isolating the electrical cavity from the collecting cavity, wherein the isolating component is provided with a pressure relief area corresponding to the pressure relief mechanisms, and the pressure relief area is used for discharging the emissions out of the electrical cavity when the pressure relief mechanisms are actuated; and a first insulating layer for sealing the pressure relief area, so as to isolate the pressure relief mechanisms from the collecting cavity, wherein the first insulating layer is configured to be destroyed when the pressure relief mechanisms are actuated, so that the emissions are discharged out of the electrical cavity via the pressure relief area. By means of the battery box, the battery, the electric apparatus, and the method and apparatus for preparing a battery, which are provided in the embodiments of the present application, the safety of a battery can be enhanced.
H01M 50/249 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports spécialement adaptés aux aéronefs ou aux véhicules, p. ex. aux automobiles ou aux trains
A pressure relief apparatus, a battery cell, a battery, and an electrical device are provided in embodiments of the present application, which belong to the field of battery technologies. The pressure relief apparatus includes a pressure relief body and a score groove. The pressure relief body includes a pressure relief portion, the pressure relief portion is configured to be opened to relieve a pressure inside the battery cell when an internal pressure or temperature of the battery cell reaches a threshold, the pressure relief portion is provided with a first opening side on one side in a first direction, the pressure relief portion is provided with a second opening side and a third opening side respectively on both sides in a second direction, and the first direction is perpendicular to the second direction. The score groove is arranged on the pressure relief body, the score groove defines the pressure relief portion, the score groove includes a first arc-shaped groove and a second arc-shaped groove, the first arc-shaped groove extends from the first opening side to the second opening side, and the second arc-shaped groove extends from the first opening side to the third opening side. The arc-shaped design of the first arc-shaped groove and the second arc-shaped groove makes it less likely that the pressure relief portion cannot be opened in a large area, thereby improving the safety of the battery cell.
Embodiments of the present application provide a battery, a power consumption apparatus, and a method and apparatus for producing a battery. The battery (100) includes: a battery cell (20), provided with a pressure relief mechanism (213), the pressure relief mechanism (213) being configured to be actuated when an internal pressure or temperature of the battery cell (20) reaches a threshold, to relieve the internal pressure; a bus component (12), configured to be electrically connected to the battery cell (20); an electrical cavity (11a), configured to accommodate the battery cell (20) and the bus component (12); a collecting cavity (11b), configured to collect emissions from the battery cell (20) when the pressure relief mechanism (213) is actuated; and a sealing structure (215), disposed in an airflow path formed between the pressure relief mechanism (213) and a wall of the electrical cavity (11a) and configured to prevent the emissions from reaching the bus component (12) when the pressure relief mechanism (213) is actuated. The battery, the power consumption apparatus, and the method and apparatus for producing the battery according to the embodiments of the present application can enhance safety of the battery.
H01M 50/186 - Éléments de scellement caractérisés par la position des éléments de scellement
H01M 50/209 - Bâtis, modules ou blocs de multiples batteries ou de multiples cellules caractérisés par leur forme adaptés aux cellules prismatiques ou rectangulaires
21.
PRESSURE RELIEF APPARATUS, BATTERY CELL, BATTERY, AND ELECTRICAL DEVICE
A pressure relief apparatus, a battery cell, a battery, and an electrical device are provided in embodiments of the present application, which belong to the field of battery technologies. The pressure relief apparatus includes a pressure relief body and a plurality of score grooves. The pressure relief body includes a pressure relief portion, and the pressure relief portion has a first surface and a second surface opposite to each other in a thickness direction thereof. A plurality of score grooves are sequentially arranged at the pressure relief portion in a direction from the first surface to the second surface, wherein in two adjacent score grooves in the thickness direction, a maximum width of a score groove far away from the first surface is less than a minimum width of a score groove close to the first surface. The pressure relief apparatus in such a structure adopts a multi-level score groove structure, which can reduce a forming force received by the pressure relief portion when forming each level of score groove, reduce the risk of generating cracks of the pressure relief portion. The pressure relief apparatus is less likely to fail due to the generation of cracks in a position of the pressure relief portion where the score groove is provided, and the long-term reliability of the pressure relief apparatus is improved.
B60L 50/72 - Détails de construction des piles à combustible spécialement adaptées aux véhicules électriques
B60L 58/24 - Procédés ou agencements de circuits pour surveiller ou commander des batteries ou des piles à combustible, spécialement adaptés pour des véhicules électriques pour la surveillance et la commande des batteries pour la commande de la température des batteries
H01M 50/249 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports spécialement adaptés aux aéronefs ou aux véhicules, p. ex. aux automobiles ou aux trains
Embodiments of the present application provide a case of a battery, a battery, a power consumption device, a method for manufacturing a battery, and a device for manufacturing a battery. The case of the battery includes: an electrical chamber configured to accommodate a plurality of battery cells of which at least one battery cell includes a pressure relief mechanism; a thermal management component configured to accommodate a fluid to adjust the temperature of the plurality of battery cells; and a collection chamber configured to collect emissions from the battery cell provided with the pressure relief mechanism when the pressure relief mechanism is actuated, wherein the thermal management component is configured to isolate the electrical chamber from the collection chamber, and a support member is provided in the collection chamber, the support member being configured to increase the compressive strength of collection chamber.
The present application provides an electrode assembly and a processing method and apparatus therefor, a battery cell, a battery, and a power consuming apparatus. The electrode assembly includes: a cathode plate, an anode plate, and a separator, where the separator is configured to separate the cathode plate from the anode plate, a closed-pore portion is provided in part of the region of the separator, and the closed-pore portion is configured to block at least some ions de-intercalated from the cathode plate located on one side of the closed-pore portion from being intercalated into the anode plate located on the other side of the closed-pore portion. Heating the separator to form the closed-pore portion can reduce the occurrence of lithium precipitation.
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p. ex. batteries à insertion ou intercalation de lithium dans les deux électrodesBatteries à l'ion lithium
24.
ELECTRODE ASSEMBLY AND PROCESSING METHOD AND APPARATUS THEREFOR, BATTERY CELL, BATTERY, AND POWER CONSUMING DEVICE
The present application provides an electrode assembly and a processing method and apparatus therefor, a battery cell, a battery, and a power consuming device. The processing method includes: applying an adhesive on a preset part of a surface of a member to be coated, the adhesive forming a barrier layer; and winding the cathode plate, the anode plate, and the separator to form an electrode assembly, where the barrier layer is located between the cathode active material layer and the anode active material layer adjacent to each other after the winding, and the barrier layer is configured to block at least some ions de-intercalated from the cathode active material layer located on one side of the barrier layer from being intercalated into the anode active material layer located on the other side of the barrier layer.
H01M 10/0587 - Structure ou fabrication d'accumulateurs ayant uniquement des éléments de structure enroulés, c.-à-d. des électrodes positives enroulées, des électrodes négatives enroulées et des séparateurs enroulés
H01M 50/474 - Éléments d'espacement à l'intérieur des cellules autres que les séparateurs, les membranes ou les diaphragmesLeurs procédés de fabrication caractérisés par leur position dans les cellules
The present application provides a battery cell and a manufacturing method and system therefor, a battery, and an electric device. The battery cell of the embodiments of the present application comprises: a housing, having an opening and provided with a pressure relief mechanism, the pressure relief mechanism being used for being actuated when the internal pressure or temperature of the battery cell reaches a threshold, so as to relieve the internal pressure or temperature; an electrode assembly, accommodated in the housing, the electrode assembly comprising a main body portion and a tab portion protruding out of the main body portion; and a cover assembly, used for covering the opening, wherein the cover assembly abuts against the main body portion, a first concave portion is formed on the side of the cover assembly facing the electrode assembly, and the first concave portion is used for accommodating at least part of the tab portion. The cover assembly is provided with at least one first channel, the first channel is used for communicating a space between the electrode assembly and the housing with the first convex portion, so as to introduce gas in the first convex portion into the space between the electrode assembly and the housing, and act on the pressure relief mechanism. The first channel can reduce the gas accumulated between the electrode assembly and the cover assembly, such that safety risk is reduced.
Embodiments of the present application provide a battery cell, a battery, a power consumption apparatus, a method for producing a battery cell and an apparatus for producing a battery cell. The battery cell includes: a pressure relief mechanism, the pressure relief mechanism being disposed on at least one wall of the battery cell, and the pressure relief mechanism being configured to be actuated when an internal pressure or temperature of the battery cell reaches a threshold, to relieve the internal pressure; and a protective film enclosing an outer surface of the at least one wall, the protective film being configured to provide insulation protection for the at least one wall; where the protective film includes a first portion, and the first portion at least covers the pressure relief mechanism. Through technical solutions of the embodiments of the present application, insulation performance of a battery cell could be improved; meanwhile, deformation of a pressure relief mechanism could be suppressed, creep of the pressure relief mechanism could be reduced, and the service life of the pressure relief mechanism could be increased.
Embodiments of the present application provide a battery, a power consumption device, a method and a device for producing the battery that enhances its safety. The battery includes: a battery cell, including a pressure relief mechanism disposed on a first wall of the battery cell; a thermal management component provided with a pressure relief hole opposite to the pressure relief mechanism, wherein a first surface of the thermal management component is attached to the first wall; and a baffle configured to cover a part of the pressure relief hole, so that when the pressure relief mechanism is actuated, a discharge direction of the emissions entering the pressure relief hole is changed. The battery, the power consumption device, the method and the device for producing the battery provided in the embodiments of the present application can enhance the safety of batteries.
An embodiment of the present application is provided with a battery box, a battery, a power consumption device, and a method for producing a battery and an apparatus for producing a battery. The box of the battery includes: an electrical chamber, configured to accommodate a battery cell group; a collection chamber, configured to collect emissions of the battery cell provided with the pressure relief mechanism when the pressure relief mechanism is actuated; an isolation component for isolating the electrical chamber and the collection chamber, such that the electrical chamber and the collection chamber are arranged on both sides of the isolation component; wherein a surface of the isolation component that is close to the battery cell group is provided with an avoidance opening, the avoidance opening extends along the first direction, and the plurality of pressure relief mechanisms of the battery cell group face the avoidance opening. A technical solution of an embodiment of the present application can enhance the safety of the battery, and at the same time, can be compatible with the size of the battery cell group, and the installation process is more convenient and faster.
H01M 50/204 - Bâtis, modules ou blocs de multiples batteries ou de multiples cellules
H01M 50/289 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports caractérisés par des éléments d’espacement ou des moyens de positionnement dans les racks, les cadres ou les blocs
H01M 50/30 - Aménagements pour faciliter l’échappement des gaz
H01M 50/375 - Moyens d’évent sensibles à la température
29.
ELECTRODE ASSEMBLY, BATTERY CELL, BATTERY, AND METHOD AND APPARATUS FOR MANUFACTURING ELECTRODE ASSEMBLY
Embodiments of this application disclose an electrode assembly, a battery cell, a battery, and a method and apparatus for manufacturing an electrode assembly. The electrode assembly includes a positive electrode plate and a negative electrode plate, where the positive electrode plate and the negative electrode plate are wound or stacked to form a bend region; and die bend region is provided with a barrier layer, where at least part of the barrier layer is located between the positive electrode plate and the negative electrode plate that are adjacent to each other, and is used to prevent at least part of ions deintercalated from the positive electrode plate from being intercalated into the negative electrode plate in the bend region.
H01M 4/13 - Électrodes pour accumulateurs à électrolyte non aqueux, p. ex. pour accumulateurs au lithiumLeurs procédés de fabrication
H01M 10/0583 - Structure ou fabrication d'accumulateurs à éléments de structure pliés à l'exception des éléments enroulés, c.-à-d. des électrodes positives ou négatives pliées ou des séparateurs pliés, p. ex. à électrodes ou séparateurs en forme de Z
H01M 10/0587 - Structure ou fabrication d'accumulateurs ayant uniquement des éléments de structure enroulés, c.-à-d. des électrodes positives enroulées, des électrodes négatives enroulées et des séparateurs enroulés
30.
ELECTRODE ASSEMBLY OF A BATTERY CELL, BATTERY AND POWER CONSUMING DEVICE, A METHOD FOR PRODUCING AN ELECTRODE ASSEMBLY AND A SYSTEM FOR MANUFACTURING AN ELECTRODE ASSEMBLY
The present application provides an electrode assembly and a processing method and apparatus, a battery cell, a battery, and an electrical apparatus. The electrode assembly comprises: a cathode sheet, an anode sheet, and a separator, the cathode sheet being bent for M times in a bending area to be provided with M bending portions, a first attachment area being formed on the inner surface of an N-th bending portion of the cathode sheet, and a second attachment area being formed on the outer surface of the N-th bending portion; an ion blocking layer at least partially attached to the first attachment area, when charging, the ion blocking layer being used for blocking an ion falling off from the first attachment area to be embedded into the anode sheet adjacent to the first attachment area; and an reinforcement layer at least partially attached to the second attachment area, an ion change channel being provided on the reinforcement layer, and the ion exchange channel being a through hole provided along the thickness direction of the reinforcement layer. In a battery cell having such a structure, the precipitation of lithium can be reduced, and the capacity and safety of the battery cell is improved.
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p. ex. batteries à insertion ou intercalation de lithium dans les deux électrodesBatteries à l'ion lithium
H01M 10/0583 - Structure ou fabrication d'accumulateurs à éléments de structure pliés à l'exception des éléments enroulés, c.-à-d. des électrodes positives ou négatives pliées ou des séparateurs pliés, p. ex. à électrodes ou séparateurs en forme de Z
H01M 10/0587 - Structure ou fabrication d'accumulateurs ayant uniquement des éléments de structure enroulés, c.-à-d. des électrodes positives enroulées, des électrodes négatives enroulées et des séparateurs enroulés
31.
BATTERY, POWER CONSUMPTION DEVICE, METHOD AND DEVICE FOR PREPARING BATTERY
The embodiments of the present application provide a battery, an electric device, and a method and a device for preparing the battery. The battery comprises: a battery cell comprising a pressure relief mechanism, wherein the pressure relief mechanism is arranged on a first wall of the battery cell, and the pressure relief mechanism is actuated to relieve the internal pressure or temperature of the battery cell when the internal pressure or temperature reaches a threshold value; and a thermal management component for containing a fluid to regulate the temperature of the battery cell, wherein a first surface of the thermal management component is attached to the first wall of the battery cell, the thermal management component is configured such that same can be destroyed by emissions discharged from the interior of the battery cell upon actuation of the pressure relief mechanism, so as to enable the emissions to pass through the thermal management component. The technical solutions of the embodiments of the present application can improve the safety of the battery.
Embodiments of the present application provide a battery, an electric device, and a method and device for preparing the battery. The battery comprises: a battery cell comprising a pressure relief mechanism provided on a first wall of the battery cell and used for being actuated when the internal pressure or temperature of the battery cell reaches a threshold so as to release the internal pressure; and a heat management component used for accommodating a fluid so as to adjust the temperature of the battery cell, wherein a first surface of the heat management component is attached to the first wall, and the heat management component is configured to be destroyable when the pressure relief mechanism is actuated, so that the fluid is discharged from the heat management component. The technical solution in the embodiments of the present application can improve the safety of the battery.
Disclosed in the present application are a battery and a related apparatus thereof and preparation method and preparation device therefor. The battery comprises a battery cell, a thermal management component, an avoidance cavity and a collecting cavity. The battery cell comprises a pressure relief mechanism; the thermal management component is used for accommodating fluid so as to adjust the temperature of the battery cell; the avoidance cavity is configured to provide a space allowing actuation of the pressure relief mechanism; and the collecting cavity is used for collecting emissions from the battery cell when the pressure relief mechanism is actuated. The thermal management component is configured to enable, when the pressure relief mechanism is actuated, the emissions of the battery cell to pass through the thermal management component and enter the collecting cavity via the avoidance cavity. According to the present application, as the avoidance cavity is provided, the pressure relief mechanism does not need to be arranged at the side of an electrode terminal of the battery cell; due to the provision of the collecting cavity, the emissions discharged by the pressure relief mechanism can be collected and will not spurt or flow to the outside and pollute other components or the environment.
A battery (10) and a related apparatus therefor, a preparation method, and a preparation device. The battery (10) comprises a plurality of battery cells (20), at least one of the plurality of battery cells (20) comprising a pressure relief mechanism (213) used for actuating when the internal pressure of the at least one battery cell (20) reaches a threshold so as to release the internal pressure; and a convergence component (12) used for electrically connecting the plurality of battery cells (20), wherein the pressure relief mechanism (213) and the convergence component (12) are respectively arranged on different sides of the at least one battery cell (20), so that the emissions from the at least one battery cell (20) are discharged along the direction distant from the convergence component (12) when the pressure relief mechanism (213) is actuated. By means of the arrangement mode of the pressure relief mechanism (213) and the convergence component (12), the safety performance of the battery (10) is significantly improved.
Provided are a box body for a battery, a battery, an electric device, and a method and a device for preparing the battery. The box body comprises: an electrical cavity, used for accommodating a plurality of single batteries and a confluence component, wherein the confluence component is used for achieving the electrical connection of the plurality of single batteries, at least one of the plurality of single batteries comprises a pressure relief mechanism, and the pressure relief mechanism is used for being actuated to relieve an internal pressure when the internal pressure or temperature of the single battery provided with the pressure relief mechanism reaches a threshold value; a thermal management component for accommodating a fluid to regulate the temperature of the plurality of single batteries; and a collection cavity, which is used for collecting, when the pressure relief mechanism is actuated, emissions from the single battery provided with the pressure relief mechanism. The thermal management component is used for isolating the electrical cavity from the collection cavity. By means of the technical solutions of the embodiments of the present application, the safety of the battery can be enhanced.
A battery (10), an electric device, and a battery preparation method (300) and device (400). The battery (10) comprises: battery cells (20), each comprising a pressure relief mechanism (213), at least a part of the pressure relief mechanism (213) protruding out of a first wall (21a) of the battery cell (20), and the pressure relief mechanism (213) being used for being actuated to release internal pressure when the internal pressure or temperature of the battery cell (20) reaches a threshold; and a thermal management part (13), used for accommodating a fluid to regulate the temperature of the battery cells (20); wherein a first surface of the thermal management part (13) is attached to the first walls (21a) of the battery cells (20) and is provided with relief cavities (134a), and the relief cavities (134a) are used for accommodating the at least a part of the pressure relief mechanism (213). The present invention can improve the safety of the battery.
The present application discloses a battery and a related apparatus, production method and production device therefor. The battery includes: a battery cell, the battery cell including a pressure relief mechanism configured to be capable of being actuated when an internal pressure or temperature of the battery cell reaches a threshold, to relieve the internal pressure; an attachment component adapted to be attached to the battery cell by an adhesive; and an isolation component configured to be capable of preventing the adhesive from being applied between the attachment component and the pressure relief mechanism. By providing the isolation component, it is possible to prevent the adhesive from being applied between the attachment component and the pressure relief mechanism in an effective manner in a process of battery production.
H01M 10/613 - Refroidissement ou maintien du froid
H01M 50/289 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports caractérisés par des éléments d’espacement ou des moyens de positionnement dans les racks, les cadres ou les blocs
H01M 50/291 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports caractérisés par des éléments d’espacement ou des moyens de positionnement dans les racks, les cadres ou les blocs caractérisés par leur forme
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