CN218274957U - Battery and electric device - Google Patents

Abstract

The application provides a battery and electric device, the battery includes: the battery pack comprises a plurality of battery units arranged side by side along a first direction; the side plate is formed by extending along the first direction and is arranged on one side of the battery pack in the second direction; keep off gluey portion, set up between group battery and curb plate, keep off gluey portion and include first fender adhesive tape, first fender adhesive tape extends the shaping along the third direction, and first fender adhesive tape correspondence sets up between at least a set of two adjacent battery monomers, and second direction, third direction and first direction are crossing. In this application, first fender glue strip can prevent at least part glue the material and get into between two adjacent battery monomers, and then alleviates the influence of excessive gluey problem to battery security performance.

Description

Battery and electric device

Technical Field

The application relates to the field of batteries, in particular to a battery and an electric device.

Background

Energy conservation and emission reduction are the key points of sustainable development of the automobile industry, and the electric vehicle becomes an important component of the sustainable development of the automobile industry due to the advantages of energy conservation and environmental protection. For electric vehicles, battery technology is an important factor in their development.

In the existing battery manufacturing process, a single battery is fixed in a box body through an adhesive, and the glue overflow phenomenon often occurs. The overflow glue can affect the safety performance of the battery in the using process and can also reduce the energy density of the battery. Therefore, how to reduce the glue overflow phenomenon during the assembly process of the battery becomes a problem to be solved urgently.

Disclosure of Invention

In view of the above problems, the present application provides a battery and an electric device, which can alleviate the influence of the glue overflow problem on the safety performance of the battery.

In a first aspect, the present application provides a battery comprising: the battery pack comprises a plurality of battery units arranged side by side along a first direction; the side plate extends and forms along the first direction and is arranged on one side of the battery pack in the second direction; keep off gluey portion, set up between group battery and curb plate, keep off gluey portion and include that first fender adhesive tape, first fender adhesive tape extends the shaping along the third direction, and first fender adhesive tape correspondence sets up between at least a set of two adjacent battery monomers, two liang of crossings in second direction, third direction and first direction.

In the technical scheme of this application embodiment, the battery includes group battery, curb plate and keeps off gluey portion. The side plate is formed by extending along the first direction and is arranged on one side of the battery pack, so that the side plate is arranged corresponding to a plurality of battery units arranged side by side. When using gluey material to bond the curb plate in group battery, gluey material probably gets into between two adjacent battery monomer, and then overflows to the top between two adjacent battery monomer, influences the security performance of battery. In this application embodiment, through set up between curb plate and group battery and keep off gluey portion, keep off gluey portion including corresponding to the first adhesive tape that keeps off that sets up between at least a set of two adjacent battery monomer for first adhesive tape that keeps off can prevent at least part to glue the material and get into between two adjacent battery monomer, and then alleviates the influence of excessive gluey problem to battery security performance.

In some embodiments, two adjacent battery cells respectively include a first side surface and a second side surface, the first side surface and the second side surface are adjacently disposed and are located on the same side of the battery cell in the second direction, the first glue blocking strip is at least partially disposed between the first side surface and the side plate, and/or the first glue blocking strip is at least partially disposed between the second side surface and the side plate.

In these embodiments, two adjacent battery monomers include a first side and a second side, and the first side and the second side are located on the same side of the battery pack, and when the first glue blocking strip is at least partially disposed between the first side and the side plate, and/or the first glue blocking strip is at least partially disposed between the second side and the side plate, the glue material for bonding the side plate can be better prevented from flowing between the two battery monomers, and then the influence of the glue overflow problem on the safety performance of the battery can be better alleviated.

In some embodiments, two adjacent battery cells respectively include a third side and a fourth side, the third side and the fourth side are perpendicular to the first direction and are adjacently disposed, and the first glue blocking strip is at least partially disposed between the third side and the fourth side.

In these embodiments, the third side and the fourth side of two adjacent battery cells are opposite to each other, and when the first glue blocking strip is at least partially disposed between the third side and the fourth side, the glue material can be better prevented from overflowing between the two adjacent battery cells, and the influence of the glue overflowing problem on the safety performance of the battery can be alleviated.

In some embodiments, at least one of the first side and the second side includes a planar portion and a transition portion, the transition portion is located on both sides of the planar portion in the first direction, and at least a portion of the first glue-blocking strip is attached to the planar portion and/or the transition portion. First shelves strip laminating can prevent in plane portion or transition portion homoenergetic that the gluey material from spilling over to between two adjacent battery monomer, can alleviate the influence of excessive gluey problem to battery security performance.

In some embodiments, the first glue stop strip completely covers the transition. Guarantee that first fender adhesive tape and first side and/or second side have sufficient area of contact, can prevent better that the gluey material from spilling over to between two adjacent battery monomer, alleviate the influence of excessive gluey problem to battery security performance better.

In some embodiments, the number of the first glue retaining strips is two or more, the two or more first glue retaining strips are arranged at intervals along the first direction, and each first glue retaining strip is correspondingly arranged between two adjacent battery cells. Through a plurality of first fender adhesive tapes, and a plurality of first fender adhesive tapes homoenergetic prevent to glue the material and spill over to arbitrary adjacent between two battery monomer, can alleviate the influence of excessive gluey problem to battery security performance better.

In some embodiments, the glue blocking portion further comprises a second glue blocking strip, the second glue blocking strip extends and forms along the first direction, and the second glue blocking strip is located on at least one side of the first glue blocking strip in the third direction. Through setting up the second and keeping off the adhesive tape, on the one hand when the number of first fender adhesive tape is a plurality of, be convenient for keep off the adhesive tape through the second and even as an organic whole with a plurality of first fender adhesive tapes. On the other hand, the second keeps off the adhesive tape and can prevent to glue the material and spill over to the free top of battery between curb plate and the second side, can alleviate the influence of excessive gluey problem to battery security performance better.

In some embodiments, the number of the second adhesive tape retaining pieces is two, and two second adhesive tape retaining pieces are respectively disposed on two sides of the first adhesive tape retaining piece in the second direction. Through setting up two second fender adhesive tapes, not only can prevent to glue the material and spill over to battery monomer top between curb plate and the battery monomer, can also prevent to glue the material and spill over to battery monomer bottom from between curb plate and the battery monomer, can alleviate the influence of excessive gluey problem to battery security performance better.

In some embodiments, the end face of the battery pack facing the side plate includes a first edge and a second edge, both perpendicular to the first direction, and the second glue retaining strip extends from the first edge to the second edge. The size of the second stop adhesive tape is long enough, at least one part of each battery can be covered by the second stop adhesive tape, and the influence of the glue overflow problem on the safety performance of the battery is better relieved.

In some embodiments, the thickness of the first dam bar is less than the thickness of the second dam bar. One side of the first glue blocking strip, which is far away from the battery pack, can be provided with a part of glue materials, so that on one hand, the use amount of the glue materials can be increased, and the stability of the relative position between the side plate and the battery pack is improved; on the other hand can make first fender glue strip bond in the curb plate through gluing the material, improves the stability of keeping off relative position between gluey portion and the curb plate.

In some embodiments, the glue blocking portion further comprises a third glue blocking strip located at least one end of the second glue blocking strip in the first direction, and the third glue blocking strip is connected with the second glue blocking strip. Through setting up third fender adhesive tape, can improve the gluey material and spill over to the free first side of battery from the tip that the second kept off the adhesive tape.

In some embodiments, the number of the third glue retaining strips is two, and two third glue retaining strips are respectively arranged at two ends of the second glue retaining strip in the first direction. Through setting up two third fender adhesive tapes, can block that the gluey material overflows to the free first side of battery from the both ends of second fender adhesive tape.

In some embodiments, the material of the second bead of material includes at least one of melamine foam, silicon foam, polyvinyl chloride foam, polyurethane foam, and ethylene propylene diene monomer foam. Make the second keep off the adhesive tape and have certain elasticity, utilize gluing the material to bond in the group battery when the curb plate, the curb plate can keep off the thickness that the adhesive tape rationally controlled to the adhesive tape through the extrusion second.

In some embodiments, the material of the first dam bar comprises at least one of polyethylene terephthalate, polycarbonate, polyvinyl chloride, resin, polyethylene, polypropylene, biaxially oriented polypropylene film, and a composite film. Make first glue blocking strip have suitable structural strength, can prevent better that the gluey material from getting into between two adjacent battery monomer.

In a second aspect, an embodiment of the present application further provides an electric device, including the battery of any of the above embodiments, where the battery is used to provide electric energy.

The above description is only an overview of the technical solutions of the present application, and the present application may be implemented in accordance with the content of the description so as to make the technical means of the present application more clearly understood, and the detailed description of the present application will be given below in order to make the above and other objects, features, and advantages of the present application more clearly understood.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

FIG. 1 is a schematic structural diagram of a vehicle provided in an embodiment of the present application;

fig. 2 is a schematic structural diagram of a battery provided in an embodiment of the present application;

FIG. 3 is a schematic diagram of the exploded structure of FIG. 2;

fig. 4 is a schematic structural view illustrating a glue blocking portion of a battery disposed in a battery pack according to an embodiment of the present disclosure;

FIG. 5 is a top view of FIG. 4;

FIG. 6 is an enlarged, fragmentary, schematic view of FIG. 5 at I in one example;

fig. 7 is a schematic view of a part of an enlarged structure at I in fig. 5 in another example.

The reference numerals in the detailed description are as follows:

1 vehicle, 10 battery, 11 controller, 12 motor;

20 battery packs, 21 battery cells, 211 first side, 212 second side, 21a planar portion, 21b transition portion,

30 side plates, 31 are attached to the surface,

40 glue blocking parts, 41 first glue blocking strips, 42 second glue blocking strips, 43 third glue blocking strips and 44 accommodating spaces,

50 the end plate is arranged on the upper surface of the shell,

x first direction, Y second direction, Z third direction.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present application more clearly, and therefore are only used as examples, and the protection scope of the present application is not limited thereby.

It should be noted that technical terms or scientific terms used in the embodiments of the present application should be understood as having a common meaning as understood by those skilled in the art to which the embodiments of the present application belong, unless otherwise specified.

In the description of the embodiments of the present application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations and positional relationships that are based on the orientations and positional relationships shown in the drawings, and are used only for convenience in describing the embodiments of the present application and for simplicity in description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the embodiments of the present application.

Furthermore, the technical terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically defined otherwise.

In the description of the embodiments of the present application, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; mechanical connection or electrical connection is also possible; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.

In the description of the embodiments of the present application, unless otherwise explicitly specified or limited, a first feature "on" or "under" a second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

At present, the application of the power battery is more and more extensive from the development of market situation. The power battery is not only applied to energy storage power supply systems such as hydraulic power, firepower, wind power and solar power stations, but also widely applied to electric vehicles such as electric bicycles, electric motorcycles and electric automobiles, and a plurality of fields such as military equipment and aerospace. With the continuous expansion of the application field of the power battery, the market demand is also continuously expanded.

In this application, the battery cell may include a lithium ion secondary battery cell, a lithium ion primary battery cell, a lithium sulfur battery cell, a sodium lithium ion battery cell, a sodium ion battery cell, or a magnesium ion battery cell, and the embodiment of the present application is not limited thereto. The battery cell may be a cylinder, a flat body, a rectangular parallelepiped, or other shapes, which is not limited in the embodiments of the present application.

Reference to a battery in embodiments of the present application refers to a single physical module that includes one or more battery cells to provide higher voltage and capacity. For example, the battery referred to in the present application may include a battery pack or a battery pack, etc. Batteries generally include a case for enclosing one or more battery cells. The box can avoid liquid or other foreign matters to influence the charging or discharging of battery monomer.

The battery cell comprises an electrode assembly and electrolyte, wherein the electrode assembly comprises a positive electrode piece, a negative electrode piece and a separator. The battery cell mainly depends on metal ions to move between the positive pole piece and the negative pole piece to work. The positive pole piece comprises a positive current collector and a positive active substance layer, and the positive active substance layer is coated on the surface of the positive current collector; the positive electrode current collector comprises a positive electrode current collecting part and a positive electrode lug connected to the positive electrode current collecting part, wherein the positive electrode current collecting part is coated with a positive electrode active substance layer, and the positive electrode lug is not coated with the positive electrode active substance layer. Taking a lithium ion battery as an example, the material of the positive electrode current collector may be aluminum, the positive electrode active material layer includes a positive electrode active material, and the positive electrode active material may be lithium cobaltate, lithium iron phosphate, ternary lithium, lithium manganate, or the like. The negative pole piece comprises a negative pole current collector and a negative pole active substance layer, and the negative pole active substance layer is coated on the surface of the negative pole current collector; the negative current collector comprises a negative current collecting part and a negative electrode lug connected to the negative current collecting part, wherein the negative current collecting part is coated with a negative active material layer, and the negative electrode lug is not coated with the negative active material layer. The material of the negative electrode current collector may be copper, the negative electrode active material layer includes a negative electrode active material, and the negative electrode active material may be carbon, silicon, or the like. The material of the spacer may be PP (polypropylene) or PE (polyethylene).

The present inventors have noted that, in the assembly process of the battery, a plurality of battery cells are first arranged side by side to form a battery pack, and then a side plate is bonded to one side of the battery pack with a rubber material. There is the gap between a plurality of battery monomers that set up side by side, when utilizing gluey material to bond in the group battery with the curb plate, gluey material probably overflows the gap between two adjacent battery monomers to spill over to battery monomer's top or bottom by the gap between two adjacent battery monomers. And the free top of battery or bottom are provided with electric connection part usually, and gluey material can influence electric connection part's performance, and then lead to the battery to appear safety problem.

In order to alleviate the influence of the glue overflow problem on the safety performance of the battery, the applicant researches and discovers that the glue material can be prevented from overflowing to the position between two adjacent battery monomers by shielding the gap between the two adjacent battery monomers, and then the influence of the glue overflow problem on the safety performance of the battery can be alleviated.

Based on the above consideration, in order to solve the influence of the glue overflowing prevention problem on the safety performance of the battery, the inventors have conducted intensive research and designed a battery and an electric device.

In such battery, set up between curb plate and group battery and keep off gluey portion, keep off the at least part of gluey portion and shelter from between two adjacent free gaps of battery, keep off gluey portion and can block that gluey material overflows to between two adjacent free batteries, and then alleviate the influence of excessive gluey problem to battery security performance.

The technical scheme described in the embodiment of the application is suitable for the battery and the electric device using the battery.

The electric device can be a vehicle, a mobile phone, a portable device, a notebook computer, a ship, a spacecraft, an electric toy, an electric tool and the like. The vehicle can be a fuel oil vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle can be a pure electric vehicle, a hybrid electric vehicle or a range extending vehicle and the like; spacecraft include aircraft, rockets, space shuttles, and spacecraft, among others; the electric toys include stationary or mobile electric toys, such as game machines, electric car toys, electric ship toys, electric airplane toys, and the like; the electric power tools include metal cutting electric power tools, grinding electric power tools, assembly electric power tools, and electric power tools for railways, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, electric impact drills, concrete vibrators, and electric planers. The embodiment of the present application does not specifically limit the above power utilization device.

It should be understood that the technical solutions described in the embodiments of the present application are not limited to be applied to the above described batteries and electric devices, but may be applied to all batteries including a box and electric devices using batteries.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a vehicle 1 according to some embodiments of the present disclosure. The vehicle 1 can be a fuel automobile, a gas automobile or a new energy automobile, and the new energy automobile can be a pure electric automobile, a hybrid electric automobile or a range-extended automobile and the like. The interior of the vehicle 1 is provided with a battery 10, and the battery 10 may be provided at the bottom or at the head or tail of the vehicle 1. The battery 10 may be used for power supply of the vehicle 1, and for example, the battery 10 may serve as an operation power source of the vehicle 1. The vehicle 1 may further include a controller 11 and a motor 12, the controller 11 being configured to control the battery 10 to power the motor 12, for example, for start-up, navigation, and operational power requirements while the vehicle 1 is traveling.

In some embodiments of the present application, the battery 10 may be used not only as an operating power source of the vehicle 1, but also as a driving power source of the vehicle 1, instead of or in part of fuel or natural gas, to provide driving power for the vehicle 1.

To meet different power requirements, the battery 10 may include a plurality of battery cells, which are the smallest units that make up a battery pack or battery. A plurality of battery cells may be connected in series and/or in parallel via electrode terminals to be applied to various applications. Reference herein to a battery includes a battery pack or a battery pack. The plurality of battery cells can be connected in series or in parallel or in series-parallel, and the series-parallel refers to the mixture of series connection and parallel connection. A plurality of battery monomers in the embodiment of the application can directly form the battery, also can form the group battery earlier, and the group battery forms the battery again.

Fig. 2 shows a schematic structural diagram of the battery 10 according to an embodiment of the present application. Fig. 3 is a schematic view of the exploded structure of fig. 2.

As shown in fig. 2 and 3, the battery 10 of the embodiment of the present application includes a battery pack 20, a side plate 30, and a dam 40. The battery pack 20 includes a plurality of battery cells 21 arranged side by side in the first direction X; the side plate 30 is formed to extend in the first direction X and is provided on one side of the battery pack 20 in the second direction Z; keep off gluey portion 40 and set up between curb plate 30 and curb plate 30, keep off gluey portion 40 and include first fender adhesive tape 41, first fender adhesive tape 41 extends the shaping along the third direction Y of battery 10, and at least part first fender adhesive tape 41 corresponds and is located between two battery monomer 21 adjacent of at least a set of, and second direction Z, third direction Y and first direction X are two liang crossing.

Optionally, the second direction Z, the third direction Y, and the first direction X intersect perpendicularly in pairs. Alternatively, the second direction Z is a height direction of the battery pack 20.

In the technical solution of the embodiment of the present application, the battery 10 includes a battery pack 20, a side plate 30, and a glue blocking portion 40. The side plate 30 is formed to extend in the first direction X and is disposed at one side of the battery pack 20, and thus the side plate 30 is disposed to correspond to a plurality of battery cells 21 disposed side by side. When the side plate 30 is bonded to the battery pack 20 by using the adhesive material, the adhesive material may enter between two adjacent battery cells 21 and overflow from between the two adjacent battery cells 21 to the top, which affects the safety performance of the battery 10. In this application embodiment, through set up between curb plate 30 and group battery 20 and keep off gluey portion 40, keep off gluey portion 40 and include the first glue strip 41 that keeps off that sets up between corresponding to at least a set of two adjacent battery monomer 21 for first glue strip 41 that keeps off can prevent at least part glue the material and get into between two adjacent battery monomer 21, and then alleviate the influence of excessive gluey problem to battery 10 security performance.

In the preparation process of the battery 10 provided in the embodiment of the present application, the plurality of battery cells 21 may be arranged side by side to form the battery pack 20, then the glue blocking portion 40 is attached to one side of the battery pack 20 in the second direction Z, and then the side plate 30 is bonded to the battery pack 20. Alternatively, the side plate 30 with the glue stopper 40 may be bonded to the battery pack 20 after the glue stopper 40 is provided on the side plate 30 and the glue material is provided on the side plate 30.

Optionally, the battery 10 may further include an end plate 50, and the side plate 30 and the end plate 50 enclose to form a lower case having an opening. The battery 10 may further include an upper case (not shown) covering the opening of the lower case. The upper box body can also be regarded as a cover body of the box body, and the cover body covers the opening of the lower box body. In order to improve the sealing property of the upper box body after being connected with the lower box body, a sealing element, such as a sealant, a sealing ring and the like, can be arranged between the upper box body and the lower box body.

Optionally, the side plate 30 includes a fitting surface 31 for fitting with the battery pack 21, and the glue stopper 40 is disposed between the fitting surface 31 and the battery pack 20. Optionally, the conforming surface 31 is parallel to a plane defined by the first direction X and the third direction Y.

Alternatively, the side plate 30 may extend in the first direction X by a dimension greater than or equal to the dimension of the battery pack 20 in the first direction X, so that the side plate 30 may cover the plurality of battery cells 21 in the battery pack 20 at one side of the battery pack 20.

At least a part of the first adhesive retaining strip 41 is correspondingly arranged between at least one group of two adjacent battery cells 21, which means that: the first rubber blocking strip 41 is located between the side plate 30 and the battery pack 20, and at least part of the first rubber blocking strip 41 can be blocked between at least one group of two adjacent battery cells 21, so that the first rubber blocking strip 41 can block rubber materials from entering between two adjacent battery cells 21.

Referring to fig. 3 and 4, fig. 4 is a schematic structural view of the battery 10 according to the embodiment of the present disclosure, wherein the first adhesive blocking strip 41 is disposed on the battery pack 20.

In some embodiments, as shown in fig. 3 and 4, two adjacent battery cells 21 respectively include a first side surface 211 and a second side surface 212, the first side surface 211 and the second side surface 212 are adjacently disposed and are located on the same side of the battery cell 21 in the second direction Z, the first adhesive blocking strip 41 is at least partially disposed between the first side surface and the side plate 30, and/or the first adhesive blocking strip 41 is at least partially disposed between the second side surface and the side plate 30.

In these embodiments, two adjacent battery cells 21 include the first side surface 211 and the second side surface 212, and the first side surface 211 and the second side surface 212 are located on the same side of the battery pack 20, when the first glue blocking strip 41 is at least partially disposed between the first side surface 211 and the side plate 30, and/or the first glue blocking strip 41 is at least partially disposed between the second side surface 212 and the side plate 30, the glue material for adhering the side plate 30 can be better prevented from flowing between the two battery cells 21, and the influence of the glue overflow problem on the battery safety performance can be better alleviated.

Alternatively, the first side surface 211 and the second side surface 212 are illustrated in fig. 3 and 4 by taking a group of two adjacent battery cells 21 as an example. In another group of adjacent battery cells 21, the positions of the first side 211 and the second side 212 thereof may be changed.

Optionally, at least a portion of the first adhesive retaining strip 41 is attached to the first side surface 211, and another portion is attached to the second side surface 212. The second glue blocking strip 42 may be attached to the first side surface 211 or the second side surface 212 by a glue material such as a double-sided tape, or the second glue blocking strip 42 may be abutted to the first side surface or the second side surface, and the second glue blocking strip 42 is in contact connection with the first side surface or the second side surface.

In some embodiments, as shown in fig. 3 and 4, two adjacent battery cells 21 respectively include a third side 213 and a fourth side 214, the third side 213 and the fourth side 214 are both perpendicular to the first direction X and are disposed adjacent to each other, and the first adhesive blocking strip 41 is at least partially disposed between the third side 213 and the fourth side 214.

In these embodiments, the third side 213 and the fourth side 213 of two adjacent battery cells 21 are opposite, and when the first glue retaining strip 21 is at least partially disposed between the third side 213 and the fourth side 214, the glue material can be better prevented from overflowing between two adjacent battery cells 21, and the influence of the glue overflow problem on the safety performance of the battery 10 can be alleviated.

The first side 211 and the second side 212 may be disposed in various shapes, and the first side 211 and the second side 212 may be flat, for example, the first side 211 and the third side 213 are located on the same battery cell 21, and the first side 211 and the third side 213 intersect and are connected to each other. The second side 212 and the fourth side 214 are located on the same battery cell 21, and the second side 212 and the fourth side 213 intersect and are connected to each other, so that the first glue blocking strip 41 can be attached to the first side 211 and the second side 212 to prevent the glue material from entering between the adjacent two third sides 213 and fourth sides 214.

Referring to fig. 5 to 7, fig. 5 is a top view of fig. 4, and fig. 6 is a schematic diagram illustrating an enlarged partial structure at I in fig. 5. Fig. 7 is a partially enlarged schematic view at I in fig. 5 in another example.

In other alternative embodiments, as shown in fig. 5 to 7, at least one of the first side surface 211 and the second side surface 212 includes a flat portion 21a extending along the first direction X and a transition portion 21b connected to both sides of the flat portion 21a in the first direction X. The transition portion 21b may be formed in various shapes, and the transition portion 21b may have an arc-shaped curved surface or the transition portion 21b may have an inclined plane. In these alternative embodiments, a concave space is formed between the transition portions 21b of two adjacent battery cells 21.

Optionally, at least a portion of the first adhesive stop strip 41 abuts the planar portion 21a and/or the transition portion 21b.

In these embodiments, at least one of the first side surface 211 and the second side surface 212 includes a planar portion 21a and a transition portion 21b, and the first adhesive blocking strip 41 can prevent the adhesive material from overflowing between two adjacent battery cells 21 when being attached to the planar portion 21 a; the first glue retaining strip 41 can prevent the glue material from overflowing to the space between two adjacent single batteries 21 when being attached to the transition part 21b, and can alleviate the influence of the glue overflowing problem on the safety performance of the battery 10.

In some embodiments, the first glue stop strip 41 completely covers the transition 21b. The first glue retaining strip 41 and the first side surface 211 and/or the second side surface 212 are ensured to have sufficient contact area, so that the glue material can be better prevented from overflowing to between two adjacent single batteries, and the influence of the glue overflowing problem on the safety performance of the battery 10 can be better alleviated.

Optionally, at least a portion of the first adhesive blocking strip 41 is attached to the planar portion 21a, and the first adhesive blocking strip 41 completely covers the transition portion 21b, so that the first adhesive blocking strip 41 has a sufficient size to better block the adhesive material from entering between two adjacent battery cells 21.

Optionally, the first side surface and the second side surface both include a planar portion 21a and a transition portion 21b, and the first glue retaining strip 41 completely covers the transition portions 21b of the first side surface 211 and the second side surface 212, so that the glue material can be better prevented from overflowing to between two adjacent battery cells 21, and the influence of the glue overflowing problem on the safety performance of the battery 10 can be better alleviated.

The number setting mode of first fender adhesive tape 41 has the multiple, and the number of first fender adhesive tape 41 can be one, and a first fender adhesive tape 41 is used for the backstop to glue the material and gets into between a set of two adjacent battery monomer 21.

In other alternative embodiments, as shown in fig. 3 and 4, the number of the first adhesive tape retaining strips 41 is two or more, the two or more first adhesive tape retaining strips 41 are arranged at intervals along the first direction X, and each first adhesive tape retaining strip 41 is correspondingly arranged between two adjacent battery cells 21. Through a plurality of first glue retaining strips 41, and a plurality of first glue retaining strips 41 can prevent the glue material from overflowing to any two adjacent battery cells 21, and the influence of the glue overflowing problem on the safety performance of the battery 10 can be better alleviated.

In some alternative embodiments, as shown in fig. 3 and 4, the glue stop portion 40 further includes a second glue stop strip 42, the second glue stop strip 42 is formed to extend along the first direction X, and the second glue stop strip 42 is located on at least one side of the first glue stop strip 41 in the third direction Y.

In these alternative embodiments, by providing the second glue retaining strip 42, on the one hand, when the number of the first glue retaining strips 41 is multiple, it is convenient to connect multiple first glue retaining strips 41 into a whole through the second glue retaining strip 42. On the other hand, the second glue retaining strip 42 can prevent the glue material from overflowing from the space between the side plate 30 and the second side surface 212 to the top of the battery cell 21, so that the influence of the glue overflowing problem on the safety performance of the battery 10 can be better alleviated.

The first glue retaining strip 41 and the second glue retaining strip 42 may be connected to each other or spaced apart from each other. Optionally, the first glue retaining strip 41 and the second glue retaining strip 42 are connected to each other, so that the problem that the glue material overflows to the top or the bottom of the battery cell 21 from the gap between the first glue retaining strip 41 and the second glue retaining strip 42 can be solved.

The number of the second glue retaining strips 42 can be set in various manners, in some alternative embodiments, the number of the second glue retaining strips 42 can be one, and one second glue retaining strip 42 is arranged at one end of the first glue retaining strip 41 in the first direction X, and is used for stopping the glue material from overflowing from one end of the second glue retaining strip 42 in the first direction X to the top or the bottom of the battery cell 21.

In other alternative embodiments, as shown in fig. 3 and 4, the number of the second rubber retaining strips 42 is two, and two second rubber retaining strips 42 are respectively disposed on two sides of the first rubber retaining strip 41 in the third direction Y.

In these optional embodiments, through setting up two second glue blocking strips 42, not only can prevent to glue the material and spill over to the battery cell 21 top from between curb plate 30 and battery cell 21, can also prevent to glue the material and spill over to the battery cell 21 bottom from between curb plate 30 and battery cell 21, can alleviate the influence of excessive gluey problem to battery 10 security performance better.

In some embodiments, the second glue retaining strip 42 covers at least part of the battery cells 21 at both ends of the battery pack 20 in the first direction X. The extension of the second glue retaining strip 42 in the first direction X is made sufficiently long that at least a portion of each battery cell 21 can be covered by the second glue retaining strip 42.

In some embodiments, the end face of the battery pack 20 facing the side plate 30 comprises a first edge and a second edge, both perpendicular to the first direction X, the second glue flap 42 extending from the first edge to said second edge. The first edge and the second edge are oppositely arranged along the first direction X, and are formed to extend along the second direction Z, and the distance between the first edge and the second edge is the extension dimension of the battery pack 20 in the first direction X. The extension of the second glue retaining strip 42 in the first direction X is made sufficiently long that at least a portion of each battery cell 21 can be covered by the second glue retaining strip 42.

For example, the extension of the second glue retaining strip 42 in the first direction X is equal to the dimension of the battery pack 20 in the first direction X. The glue material between the side plate 30 and the battery pack 20 can be blocked by the second glue strips at different positions in the first direction X, so that the influence of the glue overflow problem on the safety performance of the battery 10 can be better alleviated.

In some embodiments, the extension thickness of the first dam bar 41 in the second direction Z is smaller than the extension thickness of the second dam bar 42 in the second direction Z. A part of adhesive material can be arranged on one side of the first adhesive blocking strip 41 departing from the battery pack 20, so that the use amount of the adhesive material can be increased, and the stability of the relative position between the side plate 30 and the battery pack 20 is improved; on the other hand, the first glue blocking strip 41 can be bonded to the side plate 30 through a glue material, and the stability of the relative position between the glue blocking portion 40 and the side plate 30 is improved.

Optionally, the surface of the first glue retaining strip 41 facing the battery pack 20 and the surface of the second glue retaining strip 42 facing the battery pack 20 are coplanar, so that the surfaces of the first glue retaining strip 41 and the second glue retaining strip 42 facing the battery pack 20 can be attached to the battery pack 20 more smoothly.

In some embodiments, as shown in fig. 3 and 4, the first glue stop strip 41 and the second glue stop strip 42 are connected to each other and enclose a receiving space 44, and the receiving space 44 is used for receiving a glue material for bonding the side panel 30 and the battery pack 20.

In these alternative embodiments, by forming the accommodating space 44, a setting position can be provided for the rubber material, and a limit can be provided for the rubber material, so that the phenomenon that the rubber material overflows from the accommodating space 44 can be improved. In addition, through the first thickness that keeps off adhesive tape 41 and the second thickness that keeps off adhesive tape 42 of reasonable setting, can also control the thickness of gluing the material, guarantee that the quantity of gluing the material is suitable.

When the both ends of first fender adhesive tape 41 were provided with two second fender adhesive tapes 42, the second fender adhesive tape 42 can be connected in first fender adhesive tape 41 to improve the problem that the material spills over in by the gap between first fender adhesive tape 41 and the second fender adhesive tape 42.

Optionally, the number of first fender adhesive tape 41 is a plurality of, and the both ends of a plurality of first fender adhesive tapes 41 are all connected in second fender adhesive tape 42 for first fender adhesive tape 41 and second keep off and can enclose between the adhesive tape 42 and close and form comparatively confined accommodation space 44, glue the material and be difficult for overflowing by accommodation space 44.

In some embodiments, as shown in fig. 4, the glue stop portion 40 further includes a third glue stop strip 43 located at least one end of the second glue stop strip 42 in the first direction X, and the third glue stop strip 43 and the second glue stop strip 42 are connected to each other. By providing the third glue retaining strip 43, the overflow of the glue material from the end of the second glue retaining strip 42 to the first side 211 of the battery cell 21 can be improved.

The third glue retaining strip 43 has various shapes and sizes, and optionally, the third glue retaining strip 43 has the same shape and size as the first glue retaining strip 41, so that the structure of the glue retaining part 40 can be simplified, and the preparation of the glue retaining part 40 is facilitated.

The number of the third glue retaining strips 43 is multiple, the number of the third glue retaining strips 43 can be one, and one third glue retaining strip 43 can be arranged at one end of the second glue retaining strip 42 in the first direction X.

In other alternative embodiments, as shown in fig. 4, the number of the third glue retaining strip 43 is two, and two third glue retaining strips 43 are respectively arranged at two ends of the second glue retaining strip 42 in the first direction X. Through setting up two third glue blocking strips 43, can block that the gluing material overflows to the first side 211 of battery monomer 21 from the both ends of second glue blocking strip 42.

Optionally, the extension thickness of the third glue stop strip 43 in the second direction Z is smaller than the extension thickness of the second glue stop strip 42 in the second direction Z. One side of the third glue retaining strip 43, which is away from the battery pack 20, can be provided with a part of glue material, so that on one hand, the use amount of the glue material can be increased, and the stability of the relative position between the side plate 30 and the battery pack 20 is improved; on the other hand, the third glue blocking strip 43 can be bonded to the side plate 30 through a glue material, so that the stability of the relative position between the glue blocking part 40 and the side plate 30 is improved.

Optionally, the surface of the third rubber stopper strip 43 facing the battery pack 20 and the surface of the second rubber stopper strip 42 facing the battery pack 20 are coplanar, so that the surfaces of the third rubber stopper strip 43 and the second rubber stopper strip 42 facing the battery pack 20 can be attached to the battery pack 20 more smoothly.

The second rubber retaining strip 42 is made of various materials, and optionally, the second rubber retaining strip 42 is made of at least one of melamine foam, silicon foam, polyvinyl chloride foam, polyurethane foam and ethylene propylene diene monomer foam. Make second keep off adhesive tape 42 and have certain elasticity, utilize gluey material to bond in group battery 20 at curb plate 30, curb plate 30 can be through the thickness of the reasonable control gluey material of extrusion second fender adhesive tape 42.

The material of the first adhesive retaining strip 41 may be provided in various manners, and optionally, the material of the first adhesive retaining strip 41 includes at least one of polyethylene terephthalate, polycarbonate, polyvinyl chloride, resin, polyethylene, polypropylene, biaxially oriented polypropylene film, and a composite film. The first rubber blocking strip 41 has reasonable structural strength, and can better prevent the rubber material from entering between two adjacent battery cells 21.

The third glue retaining strip 43 is made of various materials, optionally, the third glue retaining strip 43 is made of the same material as the first glue retaining strip 41, so that the preparation of the glue retaining part 40 can be simplified.

According to some embodiments of the present application, there is also provided an electric device, including the battery according to any of the above aspects, and the battery is used for supplying electric energy to the electric device.

The powered device may be any of the aforementioned devices or systems that employ battery 10.

Referring to fig. 2 to 7, an embodiment of the present application provides a battery 10, where the battery 10 includes a battery pack 20, a side plate 30, and a glue blocking portion 40. The battery pack 20 includes a plurality of battery cells 21 arranged side by side in the first direction X; the side plate 30 is formed to extend in the first direction X and is provided on one side of the battery pack 20 in the second direction Z; keep off gluey portion 40 and set up between curb plate 30 and curb plate 30, keep off gluey portion 40 and include first fender adhesive tape 41, first fender adhesive tape 41 extends the shaping along the third direction Y of battery 10, and at least part first fender adhesive tape 41 corresponds and is located between two battery monomer 21 adjacent of at least a set of, and second direction Z, third direction Y and first direction X are crossing. Two adjacent battery monomers 21 respectively include a first side surface 211 and a second side surface 212, and the first side surface 211 and the second side surface 212 are adjacent to each other and are located the same side of the battery monomer 21 in the second direction Z, and at least a part of the first adhesive tape retaining strip 41 is attached to the first side surface 211, and another part is attached to the second side surface 212. The number of the first rubber retaining strips 41 is more than two, the two first rubber retaining strips 41 are arranged at intervals along the first direction X, and each first rubber retaining strip 41 is correspondingly arranged between two adjacent single batteries 21. Keep off gluey portion 40 and still include the second and keep off adhesive tape 42, the second keeps off adhesive tape 42 and extends the shaping along first direction X, and the second keeps off adhesive tape 42 and is located first fender adhesive tape 41 at least one side on third direction Y. The number of the second rubber retaining strips 42 is two, and the two second rubber retaining strips 42 are respectively arranged on two sides of the first rubber retaining strip 41 in the third direction Y. The extension of the second glue retaining strip 42 in the first direction X is equal to the dimension of the battery pack 20 in the first direction X. The extension thickness of the first dam bar 41 in the second direction Z is smaller than the extension thickness of the second dam bar 42 in the second direction Z.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present disclosure, and the present disclosure should be construed as being covered by the claims and the specification. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present application is not intended to be limited to the particular embodiments disclosed herein but is to cover all embodiments that may fall within the scope of the appended claims.

Claims (15)

1. A battery, comprising:

the battery pack comprises a plurality of battery units arranged side by side along a first direction;

the side plate extends and forms along the first direction and is arranged on one side of the battery pack along the second direction;

keep off gluey portion, set up in the group battery with between the curb plate, keep off gluey portion including first fender adhesive tape, first fender adhesive tape extends the shaping along the third direction, just first fender adhesive tape corresponds and sets up in adjacent two between the battery monomer, second direction, third direction with two liang of crossing in first direction.

2. The battery according to claim 1, wherein the two adjacent single batteries respectively include a first side surface and a second side surface, the first side surface and the second side surface are adjacently disposed and are located on the same side of the battery pack in the second direction, the first glue blocking strip is at least partially disposed between the first side surface and the side plate, and/or the first glue blocking strip is at least partially disposed between the second side surface and the side plate.

3. The battery of claim 2, wherein the two adjacent battery cells respectively include a third side and a fourth side, the third side and the fourth side are perpendicular to the first direction and are adjacent to each other, and the first glue blocking strip is at least partially disposed between the third side and the fourth side.

4. The battery of claim 2, wherein at least one of the first side surface and the second side surface comprises a planar portion and a transition portion, the transition portion is located on both sides of the planar portion in the first direction, and at least a portion of the first glue barrier is attached to the planar portion and/or the transition portion.

5. The battery of claim 4, wherein the first glue stop completely covers the transition.

6. The battery according to any one of claims 1-5, wherein the number of the first glue retaining strips is two or more, the two or more first glue retaining strips are arranged at intervals along the first direction, and each first glue retaining strip is correspondingly arranged between two adjacent battery cells.

7. The battery according to any one of claims 1 to 5, wherein the adhesive blocking portion further comprises a second adhesive blocking strip, the second adhesive blocking strip is formed to extend along the first direction, and the second adhesive blocking strip is located on at least one side of the first adhesive blocking strip in the third direction.

8. The battery according to claim 7, wherein the number of the second adhesive tape retaining members is two, and the two second adhesive tape retaining members are respectively provided on both sides of the first adhesive tape retaining member in the third direction.

9. The battery of claim 7, wherein an end surface of the battery pack facing the side plate includes a first edge and a second edge, the first edge and the second edge both being perpendicular to the first direction, the second dam strip extending from the first edge to the second edge.

10. The battery of claim 7, wherein the thickness of the first dam strip is less than the thickness of the second dam strip.

11. The battery of claim 7, wherein the glue blocking portion further comprises a third glue blocking strip located at least one end of the second glue blocking strip in the first direction, the third glue blocking strip being interconnected with the second glue blocking strip.

12. The battery according to claim 11, wherein the number of the third adhesive blocking strips is two, and two of the third adhesive blocking strips are respectively disposed at two ends of the second adhesive blocking strip in the first direction.

13. The battery of claim 7, wherein the second rubber stopper is made of one of melamine foam, silicon foam, polyvinyl chloride foam, polyurethane foam, and ethylene propylene diene monomer foam.

14. The battery of any one of claims 1-5, wherein the material of the first dam strip is one of polyethylene terephthalate, polycarbonate, polyvinyl chloride, resin, polyethylene, polypropylene, biaxially oriented polypropylene film, and a composite film.

15. An electrical device comprising a battery as claimed in any one of claims 1 to 14 for providing electrical energy.

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