Embodiments of the present application provide a cap assembly, a cap assembly assembling method, and a battery. The cap assembly assembling method comprises: providing a cover plate and a cap, and forming passivation protective films on the surfaces of the cover plate and the surfaces of the cap; coating with a heating curing adhesive the surfaces of the cover plate where the passivation protective films are formed and/or the surfaces of the cap where the passivation protective films are formed, and performing primary heating treatment on the heating curing adhesive to dry the surface thereof; aligning the cover plate with the cap and performing primary pressing on the cover plate and the cap to form an initial assembly form, wherein the primary pressing temperature is greater than the primary heating temperature; and performing secondary pressing on the initial assembly form to form a cap assembly, wherein the secondary pressing temperature is greater than the primary pressing temperature, and the secondary pressing pressure is greater than the primary pressing pressure.
Disclosed are an energy storing apparatus and an electronic device. The energy storing apparatus comprises: a housing having a first opening through which a cavity of the housing communicates with the outside; an end cover connected to the housing, covering the first opening, and provided with a second opening; a metal part provided on an inner side of the end cover and having a first boss which protrudes via the second opening to an outer side of the end cover; and an insulating seal provided between the metal part and the end cover. (FIG. 1)
H01M 50/188 - Éléments de scellement caractérisés par la position des éléments de scellement les éléments de scellement étant arrangés entre le couvercle et la borne
H01M 50/184 - Éléments de scellement caractérisés par leur forme ou leur structure
The present application discloses a button cell and an electronic device. The button cell comprises: a shell, wherein the shell comprises a top wall and a bottom wall opposite to the top wall, and a cavity is formed in the shell; a cell, wherein the cell is fixed in the cavity, the cell comprises a separator, a positive electrode sheet, and a negative electrode sheet, and the separator is located between the positive electrode sheet and the negative electrode sheet; and a tab, wherein the tab comprises a first connecting part and a second connecting part which are connected together, the first connecting part is connected to the positive electrode sheet or the negative electrode sheet, the second connecting part is connected to the shell, the second connecting part comprises at least one circular sheet, and the at least one circular sheet is soldered to the top wall or the bottom wall. (FIG. 4 is the drawing of the abstract)
Disclosed are an energy storage device and a cell thereof. The energy storage device includes: an anode sheet, a cathode sheet, and two diaphragms, one of the anode sheet and the cathode sheet being located between the two diaphragms, and the other one being located on an outer side of either of the two diaphragms, together the anode sheet, the cathode sheet, and the two diaphragms forming a spiral winding structure; at least one diaphragm has an extension exceeding beyond an end of the anode sheet and an end of the cathode sheet; the two diaphragms are of dimensions greater than that of the cathode sheet along an axial direction of the winding structure, an exceeding portion of the at least one diaphragm beyond the dimension of the cathode sheet forming a first protrusion from at least one end of the winding structure, and the first protrusion being tilted to cover the anode sheet and the cathode sheet at the end where the first protrusion is located. A technical effect of the present disclosure is that it is possible to simplify the structure of the cell and to improve the safety thereof by covering the end of the winding structure with the protrusion of the diaphragm to form the insulating layer.
A button-type battery including a package assembly and a cell assembly is provided. In actual application, as part of a sealing wall is recessed inwards in a direction to a battery reservoir so as to form a locking boss, as such, when a battery cover is being assembled, the locking boss is pressed against part of a sealing plastic ring so that the part of the sealing plastic ring is in tight contact with a sealing edge, and a battery cup can be locked to the battery cover by means of the locking boss, thereby preventing easy detachment of the battery cover from the battery cup to cause exposure of a rolled cell. The battery cover is applied with a strong locking force from the battery cup, greatly improving the safety of the button-type battery.
Disclosed is a button battery or cylindrical battery, including: a first shell (1), the first shell (1) comprising a first annular sidewall (11) and a first end cover (12), wherein the first annular sidewall (11) is hermetically provided with the first end cover (12) at one end and is open at the other end; a second shell (2), the second shell (2) comprising a second annular sidewall (21) and a second end cover (22), wherein the second annular sidewall (21) is hermetically provided with the second end cover (22) at one end and is open at the other end; the first shell (1) and the second shell (2) are connected together with their open ends opposite to each other, the first annular sidewall (11) is sleeved outside the second annular sidewall (21), an insulating sleeve (3) is provided between the first annular sidewall (11) and the second annular sidewall (21), a first annular protrusion (23) protruding toward the insulating sleeve (3) is formed in the circumferential direction of the outer surface of the second annular sidewall (21), and the first annular protrusion (23) abuts against the insulating sleeve (3).
H01M 50/186 - Éléments de scellement caractérisés par la position des éléments de scellement
H01M 50/109 - Boîtiers primairesFourreaux ou enveloppes caractérisés par leur forme ou leur structure physique en forme de bouton ou plate
H01M 50/107 - Boîtiers primairesFourreaux ou enveloppes caractérisés par leur forme ou leur structure physique ayant une section transversale courbe, p. ex. ronde ou elliptique
H01M 50/166 - Couvercles caractérisés par le procédé d’assemblage des boîtiers avec des couvercles
H01M 50/538 - Connexions de plusieurs conducteurs ou languettes d’électrodes empilées enroulées ou pliées
H01M 50/46 - Séparateurs, membranes ou diaphragmes caractérisés par leur combinaison avec des électrodes
H01M 50/533 - Connexions d’électrodes dans un boîtier de batterie caractérisées par la forme des conducteurs ou des languettes
The present disclosure relates to a battery apparatus and an electronic device. The battery apparatus comprises a housing, a battery cell and an electrical connector, wherein the battery cell is arranged inside the housing, the battery cell is connected to the housing, the battery cell is of a spiral winding structure, the battery cell comprises a positive plate and a negative plate, and the length of the negative plate is larger than the length of the positive plate, so as to form a redundant length; the housing comprises a positive end face and a negative end face, one end face of the battery cell is opposite the positive end face, and the other end face of the battery cell is opposite the negative end face; and the electrical connector is arranged around the middle of the positive end face and/or the negative end face, the electrical connector has a first end and a second end, the first end and the second end are arranged spaced apart from each other, the first end is connected to the positive end face and/or the negative end face, and the electrical connector is configured to be used for weakening or offsetting a magnetic field generated by the redundant length of the negative plate. (FIG. 1)
Disclosed in the embodiments of the present disclosure are a loudspeaker unit and wireless earphones. The loudspeaker unit comprises a body and a first washer, wherein the first washer is arranged inside the body, a mounting groove is formed in the first washer, a mounting hole is formed in the position of the bottom of the body corresponding to the mounting groove, and the mounting hole is in communication with the mounting groove. A technical effect of the embodiments of the present disclosure lies in that the reduction of the stacking volume of a battery and the loudspeaker unit is facilitated, so that the reduction of the volume of a wireless earphone is facilitated, the stacking structure of the battery and the loudspeaker unit is more stable, and the battery is effectively prevented from falling off from the loudspeaker unit; and the stability of the whole structure of the wireless earphone is improved.
An energy storage apparatus and an electronic device. The energy storage apparatus comprises: a housing, wherein the housing has a first opening, and a cavity of the housing communicates with the outside by means of the first opening; an end cover, which is connected to the housing, covers the first opening, and is provided with a second opening; a metal member, which is arranged at the inner side of the end cover, and which has a first boss, the first boss extending from the second opening to the outer side of the end cover; and an insulating sealing member, which is disposed between the metal member and the end cover.
Disclosed is an energy storage device, including a device body, an electric connector and an insulating member. The device body has a positive electrode region and a negative electrode region which are insulated from each other, a part of the electric connector is connected with the positive electrode region or the negative electrode region and another part of the electric connector protrudes outward from the device body, and the insulating member is provided on the electric connector and/or the device body and configured to prevent the device from shorting. (FIG. 1)
H01M 50/588 - Moyens pour empêcher un usage ou une décharge indésirables pour empêcher les contacts incorrects à l’intérieur ou à l’extérieur des batteries à l’extérieur des batteries, p. ex. les contacts incorrects des bornes ou des barres omnibus
H01M 50/296 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports caractérisés par les bornes des blocs de batterie
H01M 50/526 - Interconnecteurs pour connecter les bornes des batteries adjacentesInterconnecteurs pour connecter les cellules en dehors d'un boîtier de batterie caractérisées par le matériau ayant une structure en couches
Disclosed in the present disclosure are a battery and an electronic device. The battery comprises a packaging housing, a battery cell assembly, and at least two insulating pads; the packaging housing comprises a housing and a cap assembly; the housing is provided with an opening end and an accommodating cavity; the cap assembly is provided in the opening end; the battery cell assembly is provided in the accommodating cavity and comprises a battery cell body; the battery cell body is provided with a first end surface and a second end surface that are arranged opposite to each other along an axial direction, the first end surface is arranged close to the cap assembly, and the second end surface is arranged close to the bottom wall of the housing; one of the insulating pads is provided on the first end surface of the battery cell body, and the other one of the insulating pads is provided on the second end surface of the battery cell body; the insulating pads comprise a synthetic resin layer; and the synthetic resin layer can adsorb the electrolyte of the battery. When the battery of the present disclosure shakes, vibrates, or falls, the battery cell assembly can be avoided from moving in the packaging housing along a longitudinal direction to pull the tabs, and thus, the condition that the tabs are broken due to stress can be avoided.
H01M 50/107 - Boîtiers primairesFourreaux ou enveloppes caractérisés par leur forme ou leur structure physique ayant une section transversale courbe, p. ex. ronde ou elliptique
Disclosed is a manufacturing method of a pouch battery. The pouch battery includes a shell and an energy conversion element, the energy conversion element being provided with an electrical connector protruding outward therefrom, the shell forming a closed cavity therein and being provided with a through hole; and the pouch battery further includes a terminal connected to the through hole in a sealed manner; the manufacturing method includes: placing the energy conversion element into the cavity; connecting the electrical connector to the terminal by welding; injecting electrolyte into the cavity and sealing the cavity; and activating the pouch battery.
H01M 50/178 - Dispositions pour introduire des connecteurs électriques dans ou à travers des boîtiers adaptées à la forme des cellules pour des cellules en forme de poches ou de sacs souples
B23K 31/02 - Procédés relevant de la présente sous-classe, spécialement adaptés à des objets ou des buts particuliers, mais non couverts par un seul des groupes principaux relatifs au brasage ou au soudage
13.
CELL, ENERGY STORAGE DEVICE AND ELECTRONIC APPARATUS
The present invention relates to a cell, an energy storage device and an electronic apparatus. The cell comprises a positive electrode sheet, a negative electrode sheet and two isolation films, wherein one of the positive electrode sheet and the negative electrode sheet is located between the two isolation films, and the other is located on an outer side of one of the isolation films; the positive electrode sheet, the negative electrode sheet and the two isolation films form a spiral wound structure; the positive electrode sheet and/or the negative electrode sheet are/is provided with a tab; and the cell further comprises an insulating layer that covers the tab, and a part of the positive electrode sheet and/or the negative electrode sheet connected to the tab. (FIG. 2)
H01M 50/531 - Connexions d’électrodes dans un boîtier de batterie
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
14.
ELECTRODE PAD FOR BATTERY ROLL CORE, AND CYLINDRICAL OR BUTTON BATTERY
Disclosed are an electrode sheet for a battery roll core, and a cylindrical or button battery. The electrode sheet includes a tab, a sheet-like current collector, and two electrode active materials attached to two surfaces of the sheet-like current collector respectively, wherein an edge of the electrode active material located on an inner side of a winding is indented at beginning and/or end of the winding relative to an edge of the other electrode active material so as to form a foil-free region, and one end of the tab is connected to the sheet-like current collector.
An energy storage device and an electronic apparatus. The energy storage device comprises a positive electrode sheet (1), a negative electrode sheet (2) and two isolation films (3), wherein one of the positive electrode sheet (1) and the negative electrode sheet (2) is located between the two isolation films (3), and the other is located on an outer side of one of the isolation films (3); the positive electrode sheet (1), the negative electrode sheet (2) and the two isolation films (3) form a spiral wound structure (6), and a through hole (60) is formed in the middle of the wound structure (6); and at the starting end of the wound structure (6), at least one of the isolation films (3) extends into the through hole (60).
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
Provided are a battery and a preparation method for the battery. A battery cover plate (1) comprises: a cover plate (11), a first through hole (111) running through the cover plate (11) in a thickness direction of the cover plate (11); a base (121), at least a part of the base (121) being located in the first through hole (111), and an insulating member (13) being provided between the base (121) and the cover plate (11); a second through hole (123) running through the base (121) in a thickness direction of the base (121); and a cap (122), at least a part of the cap (122) being located in the second through hole (123) and detachably connected to the base (121), and the cap (122) and the base (121) are in a separated state, the second through hole (123) serving as a liquid injection hole.
Provided are a battery cover plate (1) and a battery. The battery cover plate (1) comprises: a first cover plate (11), a second cover plate (12) and a cover cap (13), wherein a first through hole (111) is formed by passing through the first cover plate (11) in the thickness direction of the first cover plate, and the first cover plate (11) is used for connecting to a battery housing (2); the second cover plate (12) is covered over the first through hole (111), the second cover plate (12) is connected to the first cover plate (11), and an insulating member (14) is arranged between the first cover plate (11) and the second cover plate (12); a second through hole (121) is formed by passing through the second cover plate (12) in the thickness direction of the second cover plate, and the second through hole (121) serves as a liquid injection hole; and when liquid injection is completed by means of the second through hole (121), the cover cap (13) is covered over the second through hole (121), and the cover cap (13) is connected to the second cover plate (12).
Disclosed are a button battery and an electronic device. The battery includes: a battery cell; at least one tab with one end thereof connected to one collector of the battery cell; and a shell including a first housing and a second housing hermetically connected onto each other to enclose and form a cavity in which the battery cell and the tab are positioned, wherein the at least one tab is connected with the other end thereof to an inner wall of the first housing or to an inner wall of the second housing before the first housing and the second housing are hermetically connected.
H01M 50/533 - Connexions d’électrodes dans un boîtier de batterie caractérisées par la forme des conducteurs ou des languettes
H01M 50/109 - Boîtiers primairesFourreaux ou enveloppes caractérisés par leur forme ou leur structure physique en forme de bouton ou plate
H01M 50/184 - Éléments de scellement caractérisés par leur forme ou leur structure
H01M 50/186 - Éléments de scellement caractérisés par la position des éléments de scellement
H01M 50/536 - Connexions d’électrodes dans un boîtier de batterie caractérisées par le procédé de fixation des conducteurs aux électrodes, p. ex. soudage
An energy storage device, comprising a positive electrode sheet, a negative electrode sheet, a gel polymer electrolyte membrane and an ether-based electrolyte. The gel polymer electrolyte membrane is arranged between the positive electrode sheet and the negative electrode sheet. The ether-based electrolyte is filled between the positive electrode sheet, the negative electrode sheet and the gel polymer electrolyte membrane. The components of the ether-based electrolyte comprise: lithium bis(trifluoromethanesulfonyl)imide, 1,2-dimethoxyethane and 1,1,2,2-tetrafluoroethyl 2,2,3,3-tetrafluoro propane ether.
H01M 10/0564 - Accumulateurs à électrolyte non aqueux caractérisés par les matériaux utilisés comme électrolytes, p. ex. électrolytes mixtes inorganiques/organiques l'électrolyte étant constitué uniquement de matériaux organiques
H01M 10/0565 - Matériaux polymères, p. ex. du type gel ou du type solide
A battery and an electronic device. The battery comprises: a first housing (1) and a second housing (2); part of the second housing (2) is provided on the inner side of the first housing (1), and a first sealing portion (3a) is provided between the first housing (1) and the part of the second housing (2); the outer side wall of the second housing (2) is provided with a second sealing portion (3b), a gap (10) is formed between the second sealing portion (3b) and the first sealing portion (3a), a conductive portion is provided on the gap (10), and the conductive portion is electrically connected to the second housing (2) positioned at the gap (10); the first housing (1) is provided with a curling edge portion (11), when the battery is in a first state, an end portion of at least part of the curling edge portion (11) abuts against the second sealing portion (3b), and when the battery is in a second state, the curling edge portion (11) is configured to be electrically connected to the conductive portion.
An energy storage device, comprising a housing and a first pole piece. The housing comprises a first end face (31), a second end face (32) and a side wall (33), wherein the first end face (31) is connected to one end of the side wall (33), and the second end face (32) is connected to the other end of the side wall (33). The first pole piece comprises a first supporting part (11), a second supporting part (12), and a first electric connecting part (10), which is respectively connected to the first supporting part (11) and the second supporting part (12), wherein the first supporting part (11) and the second supporting part (12) are both electrically connected to the side wall (33), and the first electric connecting part (10) and the side wall (33) are arranged at an interval.
H01M 50/298 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports caractérisés par le câblage des blocs de batterie
Embodiments of the present application disclose a battery coating method and a battery. The method comprises: providing a battery body, which comprises a first electric connection portion and a second electric connection portion, and a separator film arranged on the first electric connection portion and the second electric connection portion; pre-heating the battery body having the separator film to evaporate moisture on the outer surface of the battery body; forming a film layer on the outer surface of the pre-heated battery body by means of chemical vapor deposition; and removing the separator film from the battery body to expose the first electric connection portion and the second electric connection portion.
H01M 50/124 - Boîtiers primairesFourreaux ou enveloppes caractérisés par le matériau ayant une structure en couches
H01M 50/145 - Boîtiers primairesFourreaux ou enveloppes pour protéger contre les dommages causés par des facteurs externes pour protéger contre la corrosion
H01M 50/141 - Boîtiers primairesFourreaux ou enveloppes pour protéger contre les dommages causés par des facteurs externes pour protéger contre l’humidité
A solid-state button battery, the solid-state button battery comprising a housing (1) and a cell (2). The housing (1) comprises a first housing (11), a second housing (12) and an insulating member (3), wherein at least one of the first housing (11) and the second housing (12) is formed with a slot structure, and the first housing (11) is fastened to the second housing (12) to form an inner cavity (10); and the insulating member (3) is arranged between the first housing (11) and the second housing (12). The cell (2) is arranged in the inner cavity (10). The cell (2) comprises positive plates (22) and negative plates (21), which are alternately arranged in a stacked manner, wherein isolation layers (23) are arranged between the positive plates (22) and the negative plates (21), which are adjacent to each other; and surfaces of the positive plates (22) and the negative plates (21) are all provided with solid-state electrolyte layers. The negative plates (21) are provided with first conductors (211), and the positive plates (22) are provided with second conductors (221), wherein the first conductors (211) are electrically connected to the first housing (11), and the second conductors (221) are electrically connected to the second housing (12). The solid-state button battery has a simple structure and high safety.
The present invention relates to a battery cell of an energy storage device and the energy storage device. The energy storage device comprises: a positive plate, a negative plate, and two separators; one of the positive plate and the negative plate is located between the two separators, and the other is located outside one of the separators; the positive plate, the negative plate, and the two separators form a coiled winding structure; at least one separator has an extension part which protrudes out of the tail end of the positive plate and the tail end of the negative plate; in the axial direction of the winding structure, the size of the two separators is greater than that of the negative plate, a portion of at least one separator larger than the negative plate forms a first protrusion part on at least one end portion of the winding structure, and the first protrusion part is bent to cover the positive plate and the negative plate on the end portion. One of the technical effects of the present invention is that end portions of the winding structure are covered by the protrusion parts of the separators to form insulation layers, the structure of the battery cell is simplified, and the safety of the battery cell is improved.
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
A button cell or a cylindrical cell, comprising a first case (1), comprising a first annular side wall (11) and a first end cover (12), wherein the first end cover (12) is sealably provided on one side of the first annular side wall (11), and the other end of the first annular side wall (11) is open; and a second case (2), comprising a second annular side wall (21) and a second end cover (22), wherein the second end cover (22) is sealably provided on one side of the second annular side wall (21), and the other end of the second annular side wall (21) is open. The first case (1) is connected to the second case (2) in a manner that open ends thereof are opposite to each other; the first annular side wall (11) is sleeved outside the second annular side wall (21); an insulating sleeve (3) is provided between the first annular side wall (11) and the second annular side wall (21); a first annular protrusion (23) protruding in the direction of the insulating sleeve (3) is formed in the circumferential direction of an outer surface of the second annular side wall (21); the first annular protrusion (23) is abutted against the insulating sleeve (3).
Disclosed are a manufacturing method for a cell of an energy storage apparatus and a cell, the method comprising: sandwiching one of either a positive electrode plate or a negative electrode plate between two isolation membranes; arranging the other of the positive electrode plate or the negative electrode plate on the outer side of one of the isolation membranes; starting winding from the same end of the positive electrode plate, the negative electrode plate and the two isolation membranes and onto a winding spindle to form a spiral-shaped winding structure; at least one of the isolation membranes has an extension portion that protrudes from an end of the positive electrode plate and an end of the negative electrode plate, the extension portion being fixed on the side wall of the winding structure; and retracting the spindle from the winding structure so as to form a through hole in the middle part of the winding structure. In an embodiment of the present invention, an electric connecting part is welded to a housing body in the space inside the through hole. An excessively long electric connecting part is not required, avoiding the problem of a bent electric connecting part affecting the safety of the energy storage apparatus.
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 10/0587 - 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
A battery apparatus and an electronic device. The battery apparatus comprises a first half housing (11) and a second half housing (12). The first half housing (11) comprises a first cylindrical side wall and a top cover provided at one end of the first cylindrical side wall; the second half housing (12) comprises a second cylindrical side wall and a bottom cover provided at one end of the second cylindrical side wall; the first half housing (11) and the second half housing (12) are connected together in an inserted manner in which opening ends of the first half housing and the second half housing are opposite, and the second cylindrical side wall at least partially wraps the outer side of the first cylindrical side wall. An insulating rubber ring (2) is provided between the first cylindrical side wall and the second cylindrical side wall, and an annular protrusion (21) is provided on the surface, facing the second cylindrical side wall, of the insulating rubber ring (2). The present invention can effectively improve the sealing performance of the battery apparatus.
Disclosed are a battery apparatus and an electronic device. The battery apparatus includes: a first shell including a first tubular side wall and a top cap; and a second shell including a second tubular side wall and a bottom cap, wherein a recessed structure is formed in at least part of a connection region between the second tubular side wall and the bottom cap; the first tubular side wall sleeves the second tubular side wall; an insulation sealing piece is arranged between the first tubular side wall and the second tubular side wall; a portion of the first tubular side wall close to its open end is bent towards the recessed structure along part of a circumference of the open end to form a partial crimped edge; and the partial crimped edge is clamped to the recessed structure.
Disclosed in the present invention is a pouch battery manufacturing method. The pouch battery comprises a housing and an energy conversion element, the energy conversion element is provided with an electrical connector extending outward from the energy conversion element, a closed cavity is formed inside the housing, and a through hole is provided on the housing; the pouch battery further comprises a terminal sealedly connected on the through hole. The manufacturing method comprises: placing the energy conversion element in the cavity; welding the electrical connector to the terminal; injecting an electrolyte into the cavity and sealing the same; and activating the pouch battery. A battery tab is welded before electrolyte injection, and thus, the welding reliability is improved and the problem of electrolyte decomposition due to high temperature during welding is solved. (Fig. 1)
Disclosed are an energy storage device and a method for assembling the energy storage device. The energy storage device comprises an energy conversion element and a housing; the energy conversion element is provided with at least one electrical connection part, which is arranged on a surface of the energy conversion element; the housing comprises a conductor layer and at least one insulating layer, which are compounded together, a cavity is formed inside the housing, the at least one insulating layer is positioned on one side of the cavity, a hollow structure is arranged on the insulating layer positioned on one side of the cavity, the conductor layer is exposed on the hollow structure to form a contact part, and the electrical connection part is connected to the contact part; the housing comprises a first half housing body and a second half housing body, which are connected together in a sealed manner, and at least one of the first half housing body and the second half housing body comprises a concave structure and a surrounding edge part, which is formed by the edge of the concave structure extending outwards; and the hollow structure is arranged on the concave structure. The energy storage device of the present invention has a simple structure, and easily realizes edge sealing and bending.
Disclosed are an energy storage device and a method for assembling the energy storage device. The energy storage device comprises an energy conversion element, a housing and a terminal; the energy conversion element is provided with at least one electrical connection part, which is arranged on a surface of the energy conversion element; a cavity is formed inside the housing, the housing comprises a first half housing body and a second half housing body, which are connected together in a sealed manner, and at least one of the first half housing body and the second half housing body comprises a concave structure and a surrounding edge part, which is formed by the edge of the concave structure extending outwards; the concave structure is provided with a windowed structure; and the terminal is of a sheet-shaped structure, the edge of at least one surface of the terminal is in sealed connection with the windowed structure, and the electrical connection part comes into contact with an inner surface of the terminal. The present invention has the technical effect of realizing an electrical connection between the energy conversion element and the outside by means of the terminal, a battery has the characteristics of both a soft pouch and a steel housing, the process is simple and the safety performance is high, the terminal and the housing are in sealed connection, and when the internal pressure of the housing increases, pressure can be relieved at a joint between the terminal and the housing, such that the safety performance is improved.
The present invention relates to an energy storage device, comprising: a device main body; an electrical connection member; and an insulation component. The device main body has a positive electrode region and a negative electrode region insulated from each other. A portion of the electrical connection member is connected to the positive electrode region or the negative electrode region, and another portion thereof extends outwards from the device main body. The insulation component is provided at the electrical connection member and/or the device main body. The insulation component is configured to prevent occurrence of a short circuit in the device. (FIG. 1)
A button battery and an electronic device. The battery comprises: a battery cell (13); at least one tab (141, 142), one end of the at least one tab (141, 142) being connected to a current collector of the battery cell (13); and a housing, which comprises a first housing (11) and a second housing (12), the first housing (11) and the second housing (12) being sealingly connected for defining a cavity, the battery cell (13) and the tab (141, 142) being positioned in the cavity, and the other end of the at least one tab (141, 142) being connected to the inner wall of the first housing (11) or the inner wall of the second housing (12) before the first housing (11) and the second housing (12) are sealingly connected.
The present invention relates to an electrode pad for a battery roll core and a cylindrical or button battery, the electrode pad comprising a lug, a sheet-type current collector, and two electrode active materials respectively attached to two surfaces of the sheet-type current collector, wherein the edge of the electrode active material located at the inner side of a winding is indented at the start end and/or tail end of the winding relative to the edge of the other electrode active material, so as to form a foil-free region, and one end of the lug is connected to the sheet-type current collector. The present invention is used to solve the problem of existing pads fracturing. Since a foil-free region is provided at the start end and/or tail end, the bending stress of the electrode pad at the start end and/or the tail end is reduced during winding, which solves the fracturing problem. In addition, since a connection mode and technical parameters of the lug and electrode pad provided in the embodiments of the present invention are used, the problem of pad fracturing caused by the shear force in the lug soldering area is solved, which achieves the effects of improved production efficiency and improved product quality.
A button-type battery of the present disclosure is provided with a package assembly and a rolled cell. In an actual application process, both a battery cup and a battery cover have a protective function, while a sealing plastic ring has a waterproof function. In addition, when an electrode tab needs welding, position of the electrode tab is determined, and the battery cup and/or the battery cover are subjected to resistance welding. Accordingly, a center welding layer is formed by resistance welding on a contact portion at a central position where the electrode tab of the rolled cell contacts the battery cup and/or the battery cover, and an edge welding layer is formed by resistance welding on a contact portion at an edge position where the electrode tab of the rolled cell contacts the battery cup and/or the battery cover.
A button-type battery including a package assembly and a cell assembly is provided. In actual application, as part of a sealing wall is recessed inwards in a direction to a battery reservoir so as to form a locking boss, as such, when a battery cover is being assembled, the locking boss is pressed against part of a sealing plastic ring so that the part of the sealing plastic ring is in tight contact with a sealing edge, and a battery cup can be locked to the battery cover by means of the locking boss, thereby preventing easy detachment of the battery cover from the battery cup to cause exposure of a rolled cell. The battery cover is applied with a strong locking force from the battery cup, greatly improving the safety of the button-type battery.
The present disclosure discloses a cylindrical or button battery. The battery includes a cap, a shell and a ring seal, wherein the cap and the shell are both of a tubular structure having a cover portion and are fitted together to form a hermetic space for accommodating a battery cell; the ring seal is located between a side wall of the cap and a side wall of the shell and is capable of shrinking or being torn when reaching a set temperature so as to form a slit between the side wall of the cap and the side wall of the shell to release pressure. The ring seal of the battery can shrink or be torn at the set temperature to release pressure, and therefore the battery is characterized by excellent safety.
A battery device and an electronic device. The battery device comprises: a first housing, the first housing comprising a first cylindrical sidewall (11) and a top cover (12); and a second housing, the second housing comprising a second cylindrical sidewall (22) and a bottom cover (13). A recess structure (20) is formed on at least a part of a portion where the second cylindrical sidewall (22) and the bottom cover (13) are connected. The first cylindrical sidewall (11) is sleeved on the outer side of the second cylindrical sidewall (22). An insulating seal member is provided between the first cylindrical sidewall (11) and the second cylindrical sidewall (22). The portion of the first cylindrical sidewall (11) close to an opening end is bent towards the side of the recess structure along a part of the circumference to form a partial edge roll. The partial edge roll forms snap-fitting with the recess structure.
The present application relates to a cap for a battery and a battery. The cap comprises: a first pole guide pillar comprising an upper guide pillar, a middle ring portion and a lower guide pillar sequentially from top to bottom; and a second pole plate and an insulation ring, the insulation ring connecting the middle ring portion and the second pole plate. The end of the lower guide pillar is provided with a slot, the second pole plate is provided with a through hole, and the through hole is provided with a pressure releasing assembly. The cap for the battery provided by the present application enables the battery having the cap to be made lighter and thinner.
Provided are a cap assembly for a battery, and a battery. The cap assembly comprises a first cap body and a second cap body, with the first cap body and the second cap body being attached to each other and in electrical connection. A cavity is formed between the first cap body and the second cap body; the first cap body is provided with a protruding portion protruding in a direction away from the cavity and a vent hole in communication with the cavity; a through hole that is in communication with the cavity is arranged in the second cap body; a sealing member is arranged in the through hole; and the second cap body is configured to be connected to a cell.
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