1599results about "Large-sized cells cases/jackets" patented technology

Method for producing a degassing channel from a battery cell to a degassing opening of a battery module housing (1). The method comprises providing a sealing sleeve (5) and a sealing plug (6), wherein the sealing sleeve (5) is made of an elastically deformable material, the sealing sleeve (5) having a first end, a second end opposite the first end in an axial direction (Z), and a passage extending from the first end to the second end, wherein a circumferential wall of the sealing sleeve (5) circumferentially delimits the passage of the sealing sleeve (5), wherein the sealing plug (6) has a cover section for closing the passage of the sealing sleeve (5) and a circumferential wall extending from the cover section, wherein the sealing plug (6) is slid into the sealing sleeve (5) along the axial direction (Z) until a clamping position is reached.wherein in the clamping position an outer circumferential surface of the circumferential wall of the sealing plug (6) rests against an inner circumferential surface of the wall of the sealing sleeve (5) and thereby supports the wall of the sealing sleeve (5) radially inwards, wherein the sealing sleeve (5) and the sealing plug (6) are first pre-assembled, then inserted into the degassing opening and then moved into the clamping position by pressing the sealing plug (6) forward.

Battery external visual inspection device (100) comprising: a frame (10); a lighting mechanism (20) comprising a first adjustment structure (21) and a light source (22), wherein the first adjustment structure (21) is attached to the frame (10) and connected to the light source (22) to adjust the orientation and / or height of the light source (22) relative to the battery (200); an imaging mechanism (30) comprising a second adjustment structure (31) and a camera (32), wherein the second adjustment structure (31) is attached to the frame (10) and connected to the camera (32) to adjust the orientation and / or height of the camera (32) relative to the battery (200); a rotary drive mechanism (40) attached to the frame (10) for clamping and rotating the battery (200).

The invention relates to the field of battery shell machining, in particular to a new energy automobile battery shell machining device which comprises a machining table, and a first fixing mechanism and a second fixing mechanism which are distributed left and right are installed at the top of the machining table. The machining table is further provided with a moving mechanism for driving the first fixing mechanism and the second fixing mechanism to move oppositely and a multi-dimensional welding machine for welding the U-shaped tailor-welded part and the L-shaped tailor-welded part. Two horizontal sections of the U-shaped tailor-welded part are limited, outwards supported and straightened at the same time through linkage matching of the first outer clamping assembly and the first inner straightening assembly, the two parallel sections of the U-shaped tailor-welded part are kept perpendicular to the middle section, and the first outer clamping assembly abutting against the U-shaped tailor-welded part and the first positioning assembly are connected and locked through the first positioning assembly. The horizontal section of the L-shaped tailor-welded part is limited and straightened through mutual cooperation of the second outer clamping assembly, the second inner straightening assembly and the front-back alignment assembly.

The invention provides a battery. The battery comprises a shell, a cover body, a battery cell, a pole assembly and an insulating glue layer, the cover body is buckled on the shell; the battery cell is located in a cavity defined by the shell and the cover body, and a first tab of the battery cell is conductively connected with the shell; a pole assembly arranged on the shell in a penetrating manner is connected with a second tab of the battery cell; the pole assembly comprises a connecting sheet and a pole; the insulating rubber layer is arranged between the connecting sheet and the side wall of the shell; a first hole is formed in the side wall of the shell, a second hole is formed in the insulating glue layer, the pole penetrates through the overlapping area of the first hole and the second hole, at least part of the connecting piece is exposed in the overlapping area of the first hole and the second hole, and the connecting piece exposed in the overlapping area is connected with the second tab through a first welding mark. The projection of the first welding mark does not coincide with the projection of the pole. Through the mode, compared with a riveting mode, the welding connection mode is low in cost, and the problem of poor air tightness or short circuit of the battery caused by riveting can be avoided.

The invention relates to the technical field of batteries, and particularly provides a battery shell and a battery comprising the same. The battery shell comprises a shell body, the shell body comprises at least two oppositely-arranged first side faces and at least two oppositely-arranged second side faces, and the area of the first side faces is larger than that of the second side faces; the first side surface and the second side surface surround to form an accommodating cavity and form an upper opening part and a lower opening part, the first side surface or the second side surface forms an interface end, and the interface end is welded to form a first welding wire; the adjacent first side face and second side face are connected through a transition part, the transition part and the surface where the first welding line is located form a boundary line, the first welding line deviates from a first center line, perpendicular to the direction of the opening part, of the surface where the first welding line is located, and the distance a between the first welding line and the nearest boundary line is larger than or equal to 1 mm and smaller than or equal to 50 mm. The transition part is located in the edge corner area, the structure is stable, the welding wire is close to the transition part, the strength is high, deformation of the battery shell cannot be caused during welding, and the forming yield of the battery shell is increased.

The invention relates to the technical field of welding, in particular to a battery shell laser welding process method and device.The battery shell laser welding process method comprises the steps that a battery shell joint face is subjected to laser fine tuning treatment, and image data are obtained; obtaining a lattice structure data set of the micro lattices, adjusting the arrangement direction and the grain boundary position of the micro lattices to optimize the lattice structure data set, and obtaining an optimized grain distribution data set; microtopography data in the surface state of the joint face are recognized to obtain surface roughness data, thermal stress simulation analysis is conducted, region division processing is conducted on the thermal stress distribution situation to obtain a thermal stress gradient data set, and the thermal conductivity difference of the joint face is analyzed based on the thermal stress gradient data set to obtain a thermal transfer data set; and the heat transfer data set and the grain distribution data set are combined, optimal laser welding parameters are obtained, and a welding robot is controlled to conduct welding. Welding defects caused by uneven thermal stress in the battery shell welding process are reduced, and the consistency of welding quality is improved.

The utility model discloses a battery cover plate assembly, a battery shell and a battery. The battery cover plate assembly comprises a cover plate body. The cover plate body is a metal piece, the cover plate body is provided with a thinned area and a non-thinned area, the thickness of the thinned area is smaller than that of the non-thinned area, the non-thinned area comprises a first non-thinned area, and the first non-thinned area surrounds the peripheral side of the thinned area and is suitable for being connected with a shell of the battery shell. According to the battery cover plate assembly disclosed by the embodiment of the utility model, the thinning area is arranged and the thickness of the thinning area is smaller than that of the non-thinning area, so that the overall weight of the cover plate body can be reduced, and the light weight of the battery cover plate assembly is facilitated; therefore, the capacity ratio of unit weight of the battery can be improved, and the loading capacity of the battery under the same weight can be improved; moreover, the first non-thinned area surrounds the peripheral side of the thinned area and is suitable for being connected with the shell of the battery shell, and the thickness of the first non-thinned area is relatively large, so that the connection strength of the cover plate body and the shell can be ensured.

The utility model discloses a shell, cell and battery pack, the shell comprises: a shell assembly, the shell assembly comprises a shell body and cover plates, the two ends of the shell body in the length direction are both provided with the cover plates and connected, and the shell body is provided with an explosion-proof valve; and the insulating assembly comprises a first insulating film and a second insulating film, the first insulating film wraps the peripheral wall of the shell body, a first avoiding hole is formed in the first insulating film, the second insulating film is located in the first avoiding hole, and a second avoiding hole for avoiding the explosion-proof valve is formed in the second insulating film. According to the shell disclosed by the utility model, gas-electricity separation of the battery cell can be realized, a good insulation effect is ensured, and the explosion-proof valve is reliably opened.

The utility model relates to the technical field of batteries, and provides a battery and a battery device, and the battery comprises a battery shell which comprises a cover plate and a shell part; the pole assembly is arranged on the cover plate, and at least part of the pole assembly is located on the outer side of the cover plate; the insulation sleeve covers the outer surface of the pole assembly, and at least part of the insulation sleeve is located on the outer side of the cover plate; the insulating coating covers at least part of the cover plate, and the insulating coating is located on the outer side of the cover plate; wherein the insulation sleeve covers at least part of the insulation coating, the coincident area of the orthographic projection of the insulation sleeve on the cover plate and the insulation coating is S1, the area enclosed by the circumferential outer edge of the cover plate is S2, and S1 / S2 is 0.2%-10%, so that reliable insulation protection of the insulation sleeve on the pole assembly can be ensured, and the coincident area of the insulation sleeve and the insulation coating can be ensured not to be too large; therefore, the overall heat dissipation performance of the battery shell is ensured, and the safe use performance of the battery device can be effectively improved.

The embodiment of the utility model provides an insulating part for coating a battery cell, an electrode assembly, a battery monomer, a battery and a power utilization device, and the insulating part comprises a middle folding sheet which is provided with a positioning hole; the first folding sheet is connected with the middle folding sheet at a first folding line, and the first folding sheet comprises a first main folding sheet and a side folding sheet connected with the first main folding sheet at a third folding line; the extension sheet is connected to one end, close to the middle folding sheet, of the side folding sheet at the fourth folding line; the second folding sheet is connected with the middle folding sheet at a second folding line; wherein the middle folding sheet is configured to cover the bottom of the battery cell, the first folding sheet and the second folding sheet are configured to cover the circumferential side part of the battery cell after being folded, and the extension sheet is configured to completely cover the positioning hole. The insulating part can prevent the battery cell from being in contact with the shell and can receive active substances falling from the pole piece of the battery cell, so that electrochemical corrosion of the shell is avoided.

The present invention relates to a high-stability magnetic storage battery, comprising a battery inner cavity shell (9), a positive electrode current collector (8), a negative electrode current collector (12), a battery separator (6), and an outer shell cover plate (5). The battery inner cavity shell (9) is filled with an electrolyte (10), the positive electrode current collector (8) and the negative electrode current collector (12) are arranged on the inner wall of the battery inner cavity shell (9) relative to each other, the outer wall of the battery inner cavity shell (9) is provided with one or more magnets, and the electrolyte (10) contains a negative electrode active material (11A) and a positive electrode active material (11B). Compared with the prior art, the battery of the present invention has the advantages of improving the structural stability of the electrode material, improving the performance of the electrode and the electrolyte, and extending the service life of the storage battery.

The invention provides a single battery, a battery device and a power utilization device, the single battery comprises an electrode assembly, the total width of a positive pole lug part accounts for 50%-100% of the total size of a pole lug connecting edge along the extension direction of the pole lug connecting edge of a positive pole main body part, and the total width of a negative pole lug part accounts for 50%-100% of the total size of the pole lug connecting edge along the extension direction of the pole lug connecting edge of a negative pole main body part; wherein the coating weight of the single negative electrode active material layer is 0.1 g / 1540.25 mm < 2 >-0.145 g / 1540.25 mm < 2 >, the electrolyte comprises at least one of dimethyl carbonate and linear carboxylic ester, the structural formula of the linear carboxylic ester meets R1-COO-R2, and R1 and R2 are independently selected from C1-C5 alkyl or halogenated alkyl respectively; based on the total mass of the organic solvent, the mass fraction of the first solvent is 4-72%.

Disclosed in the present application are a battery case and a battery module. The battery case comprises a top cover assembly, a bottom plate and side plates connected to the bottom plate, wherein an installation cavity is enclosed by the bottom plate and the side plates and is sealed by the top cover assembly; and at least one of the bottom plate and the side plates comprises a vapor chamber structure. The battery case and the battery module provided in the present application have good heat dissipation performance.

The utility model provides a battery monomer, a battery device and a power utilization device, and belongs to the technical field of batteries. The battery monomer comprises a shell, an electrode assembly, an electrode terminal, a fixing piece and a first insulating piece, the electrode assembly is housed within the housing. The electrode terminal is disposed on a wall portion of the housing and is electrically connected to the electrode assembly. The fixing piece is arranged on the peripheral side of the electrode terminal, the fixing piece comprises a base part and a limiting part, the base part is connected to the wall part, the limiting part is connected to the base part and extends in the direction close to the electrode terminal, and the limiting part is configured to limit the electrode terminal to move in the direction away from the electrode assembly in the thickness direction of the wall part. And at least part of the first insulating part is arranged between the electrode terminal and the limiting part. The thickness of the limiting part is smaller than that of the base part. Therefore, the space for accommodating the first insulating part between the limiting part and the electrode terminal can be enlarged while the connection strength requirement of the base part and the wall part of the fixing part is met, so that the creepage distance between the limiting part and the electrode terminal can be increased.

A battery housing and a power battery. The battery housing comprises cover plates and a casing (4). The casing (4) is of a hollow structure having openings, the cover plates are provided with connecting bosses (3), and the connecting bosses (3) are inserted into the openings of the casing (4), so that the cover plates close the casing (4) to form an accommodating cavity (8). A weld seam (9) is formed at the junction of the casing (4) and each cover plate, the weld seam (9) has a weld width n, the thickness of the area of the cover plate in which the connecting boss (3) is provided is a, and a weld width ratio is X=n / a, with a range of 0.16≤X≤1.

The invention discloses a battery cell and a power utilization device, the battery cell comprises a shell and an electrode assembly, the shell forms a containing cavity filled with electrolyte, the electrode assembly is arranged in the containing cavity, the surface of an active substance layer of the electrode assembly is recessed inwards to form a groove, and the groove extends to the edge of a pole piece; the thickness of the active material layer is M, and the thickness of the isolating membrane in the thickness direction is C; the isolating membrane is laminated with the first pole piece along the thickness direction, and the porosity of the isolating membrane is F; the interval between every two adjacent grooves in the second direction is H, the sectional area of each groove in the section perpendicular to the extending direction is G, and 0.03 M * H < = (G + (0.1 C * F * H)). Through reasonable arrangement of the isolating membrane and the groove, the isolating membrane and the groove can transmit sufficient electrolyte to the active substance layer to infiltrate the interior of the electrode assembly and meet the requirement of the electrode assembly for electrolyte consumption, so that the electrolyte in the electrode assembly can be supplemented in time in the circulation process, and the cycle life of the battery cell can be prolonged.

The utility model relates to the technical field of batteries, and discloses a battery and a battery pack. The shell is internally provided with a hollow cavity, the pole group is arranged corresponding to the hollow cavity, a first opening is formed in the first end, in the height direction, of the shell, two opposite first inner walls, in the length direction, of the shell protrude inwards to form first limiting parts, and the first limiting parts and the end face of the pole group are oppositely arranged in a spaced mode in the height direction; the top cover assembly is arranged corresponding to the first opening, the top cover assembly comprises an anti-explosion valve, and the top cover assembly abuts against the end face of the pole group. When the pole group loses the limiting effect of the top cover assembly, if the pole group moves towards the anti-explosion valve, the pole group is limited by the first limiting part along the two sides of the length direction, so that the end surface of the pole group is prevented from being in contact with the anti-explosion valve to cause blockage of the anti-explosion valve, gas in the battery is smoothly discharged from the anti-explosion valve, and the safety of the battery is improved.

The utility model provides a cylindrical battery monomer, a battery and a power utilization device. The cylindrical battery monomer comprises a shell, an electrode assembly and a binding piece, the electrode assembly is contained in the shell and comprises an electrode body and a tab, and the tab is led out from the end of the electrode body. The binding piece is arranged between the shell and the electrode assembly, the binding piece is arranged around the peripheral side of the electrode body in the circumferential direction of the electrode body, the binding piece is provided with a first end and a second end which are arranged in the circumferential direction, and the first end and the second end are arranged at an interval. The cylindrical battery monomer provided by the embodiment of the utility model is beneficial to improving the reliability of the cylindrical battery monomer.

The utility model relates to a battery shell assembly, a lithium battery and a battery pack, in the battery shell assembly, a partition plate is arranged in a shell to divide an accommodating cavity into a first accommodating sub-cavity and a second accommodating sub-cavity; a battery cell main body is arranged in the first accommodating sub-cavity, and a fire-fighting agent is stored in the second accommodating sub-cavity; mounting holes are formed in the partition plates; the battery cell main body comprises an electrode connecting piece; the valve body is arranged in the mounting hole; the valve body is opened when the battery cell main body is subjected to thermal runaway so as to spray a fire extinguishing agent to the battery cell main body; the first end of the cutting part is arranged in the second accommodating sub-cavity; when the valve body is opened, the second end of the cut-off piece extends out of the valve body to cut off the electrode connecting piece, so that when the battery cell main body is subjected to thermal runaway, fire-fighting measures with quick isolation, quick response, accurate control and small influence range are carried out on the single battery cell subjected to thermal runaway; thermal runaway diffusion of the whole battery pack caused by thermal runaway of the single battery cells and damage to other electrical parts caused by failure of the single battery cells are avoided.

The utility model belongs to the technical field of batteries, and discloses a battery shell and a battery, the battery shell comprises a shell body, a cover plate module, a composite cover plate, a composite pole and a protective end plate, the cover plate module comprises a first cover plate body and a connecting pole penetrating through the first cover plate body, the composite cover plate is provided with a penetrating structure for the pole lug to extend out, the composite pole column is arranged on one side, deviating from the cover plate module, of the composite cover plate, the pole lug extending out of the accommodating cavity realizes current conduction through the composite pole column, and the protective end plate is provided with an avoiding through hole for the pole lug to penetrate through. The tab on one side and the composite pole located on the outer side of the containing cavity achieve current conduction through the penetrating structure, the space occupied by the composite pole and the space for connecting the bent tab and the composite pole are saved, the space utilization rate is increased, space is provided for increasing the size of the pole set, the energy density is increased, and the service life of the pole set is prolonged. And the pole lug is prevented from skewing during passing through the protection end plate, so that the reliability of the structure is improved.

The invention relates to a high-voltage battery (1) as a traction battery for a motor vehicle, comprising a plurality of individual battery cells (2) whose battery terminals (8, 10) are arranged on a first side of a cell housing (4) and connected to current collectors (13, 14), wherein each of the individual battery cells (2) has a pressure relief element (12) which opens the cell housing (4) when a predetermined pressure is reached. The high-voltage battery according to the invention is characterized in that the The overpressure relief element (12) is arranged together with the battery terminals (8, 10) of the battery cell (2) on a first side of the cell housing (4), wherein the battery terminals (8, 10) connected to the current collectors (13, 14) and the overpressure relief element (12) are covered with an electrically insulating, chemically, mechanically and temperature-resistant potting compound (20), which is designed such that it bursts open in the area of ​​the affected battery cell (2) in the event of an activation of the overpressure relief element (12).

A battery includes a box body, a battery group, and a position-limiting member. The battery group is arranged in the box body. The battery group includes two or more battery cells arranged in a first direction. The battery cell includes a first side wall and a second side wall connected together. The first side wall is a wall having the largest area among all outer walls of the battery cell. The second side walls of two adjacent battery cells are arranged opposite to each other in the first direction. The position-limiting member is fixedly connected to the box body and abuts against the first side wall of the battery cell. The position-limiting member is used for limiting deformation of the battery cell in a second direction, and the second direction is perpendicular to the first side wall.

The utility model provides a battery monomer, a battery and a power utilization device, the battery monomer comprises an electrode assembly, a shell and a coating, the electrode assembly is accommodated in the shell, the shell is provided with a welding part, the welding part is electrically connected to a tab of the battery monomer, and the coating is arranged on the outer side of the shell and covers the welding part. The welding part is covered with the coating, so that the welding part is protected, the possibility of corrosion of the welding part is reduced, and the reliability of the single battery is improved.

A battery cell, a battery and an electric device. The battery cell (100) comprises a casing (110), an electrode assembly (120), an isolating structure (170), and an insulating piece (160), wherein the casing (110) is provided with an inner cavity and a first wall (111); the electrode assembly (120) is arranged in the inner cavity, the isolating structure (170) is at least partially located between the first wall (111) and the electrode assembly (120), and the isolating structure (170) is provided with a first through hole (150); and the insulating piece (160) comprises a first portion (161), and the first portion (161) covers the first through hole (150). In the battery cell (100), the first portion (161) of the insulating piece (160) covers the first through hole (150), such that the probability of powder on one side of the electrode assembly (120) moving to one side of the first wall (111) through the first through hole (150) is reduced to a certain extent, thereby improving the reliability of the battery cell (100).

Flexible electronic devices may be provided. A flexible electronic device may include a flexible display, a flexible housing and one or more flexible internal components configured to allow the flexible electronic device to be deformed. Flexible displays may include flexible display layers, flexible touch-sensitive layers, and flexible display cover layers. The flexible housing may be a multi-stable flexible housing having one or more stable positions. The flexible housing may include a configurable support structure that, when engaged, provides a rigid support structure for the flexible housing. The flexible internal components may include flexible batteries, flexible printed circuits or other flexible components. A flexible battery may include flexible and rigid portions or may include a lubricious separator layer that provides flexibility for the flexible battery. A flexible printed circuit may include flexible and rigid portions or openings that allow some rigid portions to flex with respect to other rigid portions.

The utility model discloses a battery which comprises a battery cell main body, a bottom adhesive layer and a head adhesive layer, the battery cell main body comprises a top surface and a bottom surface, and a first side surface, a second side surface, a third side surface and a fourth side surface which are positioned between the top surface and the bottom surface and are sequentially connected end to end along the circumferential direction, the step face comprises a first side face area, a vertical face area and a second side face area which are sequentially connected, and the second side face area protrudes outwards relative to the first side face area. The bottom adhesive layer is positioned at the bottom of the battery cell main body, and a first notch is formed in a position close to or corresponding to the vertical surface area; the head adhesive layer is positioned at the top of the battery cell main body, and a second notch is formed in a position close to or corresponding to the vertical surface area. The battery can be matched with a battery compartment structure with a local bulge through the stepped surface, so that the space utilization rate of a complete machine end is improved, and the battery capacity is improved.

The utility model provides a battery monomer, a battery and electric equipment. The battery monomer comprises a shell and a protection piece, the shell comprises a first wall part, the first wall part is provided with a first surface, the first surface is provided with a pressure relief groove, and the first wall part is configured to be capable of cracking along the pressure relief groove when the battery monomer is subjected to pressure relief. The protection piece is arranged on the first surface and shields the pressure relief groove, and the protection piece and a groove opening of the pressure relief groove are arranged in a clearance mode in the thickness direction of the first wall part. The first wall part of the battery monomer is provided with the protection piece, and the protection piece can resist external force interference, protect the pressure relief groove, limit the deformation of the first wall part, and reduce the risk that the first wall part cracks in advance along the pressure relief groove due to the change of the pressure in the battery monomer on the pressure relief groove. According to the battery, the protection piece and the notch gap of the pressure relief groove are arranged, so that the protection piece is not easy to prevent the first wall part from cracking along the pressure relief groove when the battery monomer is subjected to pressure relief, the pressure relief groove can be quickly cracked for pressure relief when the battery monomer is subjected to pressure relief, and the reliability of the battery monomer is favorably improved.

An etching machine is disclosed. The etching machine according to an embodiment of the present disclosure includes a laser source; a scanner configured to deflect light from the laser source to an electrode current collector coated with an electrode active material; and a processor configured to control at least one of the laser source or the scanner to keep a pulse distance of the light incident on the electrode current collector constant.

The utility model relates to the technical field of batteries, in particular to a battery. The battery core coating film comprises a film body which is provided with two film bodies opposite to the two side surfaces of a battery core in the thickness direction respectively; the supporting assembly is arranged on the surface, facing the battery cell, of the membrane body, the supporting assembly comprises a supporting piece and an elastic telescopic piece, the supporting piece comprises a central area and an edge area surrounding the central area, the central area is connected with the membrane body, and a gap is formed between the edge area and the membrane body; the elastic telescopic piece is arranged in a gap between the edge area and the membrane body, and the two ends of the elastic telescopic piece are connected with the membrane body and the supporting piece respectively. According to the battery disclosed by the utility model, the positive plate and the negative plate of the battery cell are stably attached through the supporting assembly, so that the service life of the battery is prolonged, and the satisfaction degree of a user is improved.

The utility model provides a battery and electric equipment, and relates to the technical field of batteries. The battery comprises a shell, a battery cell, a pole and an insulating coating, the shell is provided with a containing cavity, and the battery cell is arranged in the containing cavity; the shell is provided with a through hole, and the pole is mounted in the through hole; the insulating coating is at least partially sprayed on the inner surface of the shell and at least partially covers the inner wall of the accommodating cavity; the through holes are located in the shell wall, where the insulating coating is sprayed, of the shell, so that the insulating coating is sprayed on the inner wall of the shell to form the insulating layer, independent injection molding is not needed, independent positioning and assembling procedures are not needed, the production and manufacturing cost is reduced, the thickness of the insulating coating formed in the spraying mode can be adjusted and controlled, and the production efficiency is improved. Therefore, the pole and the shell have a good insulation effect, the thickness of the insulation coating is reduced, and the capacity of the battery is improved.