Battery and electric device

Abstract

The application discloses a battery and an electric device. The battery comprises a battery cell module, a first support, a coating film and a first adhesive substance. The battery cell module comprises a plurality of battery cells. The battery cell comprises a battery cell shell and an electrode terminal. The battery cell shell comprises a main body part and a sealing part. The main body part comprises a first end and a second end along a first direction. The electrode terminal extends from the sealing part. The first support is arranged at the first end and arranged along the first direction with the battery cell module. The first support comprises a bottom wall, a first side wall, a second side wall, a third side wall and a fourth side wall. The coating film at least covers part of the battery cell shell. The coating film is connected to the outer side of the first side wall, the outer side of the second side wall, the outer side of the third side wall and the outer side of the fourth side wall. Along the first direction, the coating film comprises a first side and a second side. The first side exceeds the first end. The first adhesive substance is connected to the first end, the first side wall, the second side wall, the third side wall and the fourth side wall.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of batteries, and particularly relates to a battery and an electric device. BACKGROUND

[0002] As a power supply device, a battery is widely used in electric devices. In the prior art, a support is used to accommodate a battery cell module, the battery cell module comprises a plurality of battery cells, and then an adhesive is filled to encapsulate the plurality of battery cells. If the adhesive is insufficient, the protection performance of the battery will be affected, and if the adhesive is excessive, the weight of the battery pack will be large, and the energy density of the battery will be reduced. SUMMARY

[0003] The battery and the electric device provided by the embodiments of the application are beneficial to reduce the amount of adhesive and improve the energy density of the battery.

[0004] In one aspect, the battery provided by the embodiments of the application comprises a battery cell module, a first support, a coating film and a first adhesive, the battery cell module comprises a plurality of battery cells, the battery cell comprises a battery cell shell and an electrode terminal, the battery cell shell comprises a main body part and a sealing part, the main body part comprises a first end and a second end along a first direction, the electrode terminal extends from the sealing part, the first support is arranged at the first end, the first support and the battery cell module are arranged along the first direction, the first support comprises a bottom wall, a first side wall, a second side wall, a third side wall and a fourth side wall, the first side wall and the third side wall are connected with the bottom wall along the first direction, the second side wall connects the first side wall and the third side wall, the fourth side wall connects the first side wall and the third side wall, the first side wall and the third side wall are arranged in a spaced manner along a second direction, the second side wall and the fourth side wall are arranged in a spaced manner along a third direction, the first direction, the second direction and the third direction are perpendicular to each other, the coating film at least covers part of the battery cell shell, the coating film connects the outer side of the first side wall, the outer side of the second side wall, the outer side of the third side wall and the outer side of the fourth side wall, along the first direction, the coating film comprises a first side and a second side, and the first side exceeds the first end, and the first adhesive connects the first end, the first side wall, the second side wall, the third side wall and the fourth side wall.

[0005] According to the embodiments of the first aspect of the application, the coating film is connected with the first support to form a containing space, and the battery cell module is arranged in the containing space.

[0006] According to any one of the foregoing embodiments of the first aspect of the application, the bottom wall comprises a first surface and a second surface arranged opposite to each other along the first direction, and a first through hole communicating the first surface and the second surface, the first support further comprises a first protrusion arranged on the second surface, and the first through hole penetrates the first protrusion; the battery further comprises a circuit board, and the electrode terminal is connected to the circuit board, the circuit board comprises a first end surface and a second end surface arranged opposite to each other along the first direction, the first end surface faces away from the bottom wall, the second end surface is provided with electronic components, and the circuit board comprises a second through hole communicating the first end surface and the second end surface, and the first protrusion passes through the second through hole.

[0007] According to any one of the foregoing embodiments of the first aspect of the application, at least part of the first end surface is separated from the first adhesive substance.

[0008] According to any one of the foregoing embodiments of the first aspect of the application, the first support further comprises a fifth side wall connected to the bottom wall along the first direction, the fifth side wall connects the first side wall and the third side wall, the fifth side wall and the second side wall are arranged spaced apart along the third direction to form a first opening, and projections of the fifth side wall and the second side wall on the third direction overlap.

[0009] According to any one of the foregoing embodiments of the first aspect of the application, in the third direction, the second side wall is provided with a plurality of grooves arranged in sequence on a side close to the battery cell module, and the grooves accommodate parts of the battery cell shell.

[0010] According to any one of the foregoing embodiments of the first aspect of the application, along the first direction, the second side wall comprises a third end surface close to the bottom wall, and a distance between the third end surface and the bottom wall is greater than a distance between the first end surface and the bottom wall; and the fourth side wall comprises a fourth end surface close to the bottom wall, and a distance between the fourth end surface and the bottom wall is greater than the distance between the first end surface and the bottom wall.

[0011] According to any one of the foregoing embodiments of the first aspect of the application, the battery further comprises a second support arranged on the second end, the second support is arranged along the first direction with the battery cell module; the cladding film at least covers part of the second end, and a surface of the second support and the cladding film away from the battery cell module is connected.

[0012] According to any one of the foregoing embodiments of the first aspect of the application, the battery further comprises a second adhesive substance, the second adhesive substance connects the fifth side wall and the second side wall, and / or the second adhesive substance connects the battery cell module and the second support.

[0013] In a second aspect, the embodiments of the application provide a power-using device, which comprises the battery of any one of the foregoing first aspect, and the battery provides electric energy for the power-using device.

[0014] The battery and the electric device of the embodiment of the application, the battery comprises a battery cell module, a first support, a cladding film and a first adhesive substance, the battery cell module comprises a plurality of battery cells, the battery cell comprises a battery cell shell and an electrode terminal, the battery cell shell comprises a main body part and a sealing part, the main body part comprises a first end and a second end along a first direction, the electrode terminal extends from the sealing part, the first support is arranged at the first end, the cladding film at least clads part of the battery cell shell, and a first side of the cladding film exceeds the first end, and the first adhesive substance connects the first end and a side wall of the first support. By arranging the cladding film, the cladding film is attached to the battery cell shell, when the first adhesive substance is poured, the first adhesive substance flows between the cladding film and the battery cell, the first adhesive substance is hindered by the cladding film and the battery cell shell after flowing a certain distance from the first end to the second end, the first adhesive substance is arranged at the first end, local sealing of the battery cell module is realized, the protection capability of the electrode terminal and the waterproof capability of the battery cell are improved, and compared with complete packaging, the amount of the first adhesive substance is reduced, and the energy density of the battery is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the application, the drawings needed to be used in the embodiments of the application will be briefly introduced as follows, and other drawings can be obtained by those of ordinary skill in the art without creative labor on the premise that the drawings are not attached.

[0016] Figure 1 A cross-sectional perspective structure schematic diagram of a battery according to the first aspect of the application;

[0017] Figure 2 A cross-sectional structure schematic diagram of a battery according to the first aspect of the application;

[0018] Figure 3 A partial structure schematic diagram of a battery according to the first aspect of the application;

[0019] Figure 4 A structure schematic diagram of a first support of a battery according to the first aspect of the application;

[0020] Figure 5 A structure schematic diagram of a battery cell in a battery according to the first aspect of the application;

[0021] Figure 6 An exploded view of a battery cell in a battery according to the first aspect of the application;

[0022] Figure 7 A perspective structure schematic diagram of a battery according to the first aspect of the application;

[0023] Figure 8 A perspective structure schematic diagram of a battery according to the first aspect of the application;

[0024] Figure 9 FIG. 1 is a schematic view of a cross-sectional structure of a first support of a battery according to an embodiment of the first aspect of the present application;

[0025] Figure 10 FIG. 2 is a schematic view of a partial structure of a battery according to an embodiment of the first aspect of the present application;

[0026] Figure 11 FIG. 3 is a schematic view of a cross-sectional structure of a first support of a battery according to an embodiment of the first aspect of the present application;

[0027] Figure 12 FIG. 4 is a bottom view of a battery according to an embodiment of the first aspect of the present application;

[0028] Figure 13 FIG. 5 is a schematic view of a partial structure of a battery according to an embodiment of the first aspect of the present application;

[0029] Figure 14 FIG. 6 is a schematic view of a structure of an electrical equipment according to an embodiment of the second aspect of the present application.

[0030] Reference Signs:

[0031] 100, electrical equipment; 10, battery; 1, battery cell module; 11, battery cell; 111, battery cell housing; 111a, main body portion; 111b, sealing portion; 1111, first housing; 1112, second housing; 1113, first extension portion; 1114, second extension portion; 1115, first sealing portion; 1116, second sealing portion; 112, first end; 113, second end; 114, electrode terminal; 115, electrode assembly; 2, first support; 21, bottom wall; 211, first surface; 212, second surface; 213, first through hole; 22, first side wall; 23, second side wall; 231, groove; 232, third end surface; 24, third side wall; 25, fourth side wall; 251, fourth end surface; 26, first protrusion; 27, fifth side wall; 28, first opening; 29, sixth side wall; 2a, second protrusion; 2b, base portion; 3, covering film; 31, first side; 32, second side; 4, first adhesive substance; 5, accommodation space; 6, circuit board; 61, first end surface; 62, second end surface; 63, electronic component; 64, second through hole; 7, second support; 8, second adhesive substance; 9, metal piece; X, first direction; Y, second direction; Z, third direction. DETAILED DESCRIPTION

[0032] The features and exemplary embodiments of the various aspects of the present application will be described in detail below with reference to the drawings. For the purpose of clarity, the description is divided into the following sections: technical field, brief description of the drawings, detailed description of the embodiments, and conclusion. It should be noted that the specific embodiments described herein are intended to explain the principles of the present application and are not intended to limit the present application to these specific embodiments. The present application can be implemented without some of the specific details of the embodiments described below. The description of the embodiments is merely provided to give a better understanding of the present application through the examples of the present application.

[0033] It should be noted that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can be present. When an element is referred to as being "positioned on" another element, it can be directly positioned on the other element or intervening elements can be present. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0034] In the description of the embodiments of the present application, the terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between the entities or operations. Also, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that processes, methods, articles or devices including a series of elements not only include those elements, but also include other elements not explicitly listed or inherent to such processes, methods, articles or devices. Without more limitations, the elements defined by the phrase "comprise" do not exclude the presence of additional identical elements in the processes, methods, articles or devices that include the elements.

[0035] Batteries are widely used in electronic devices as power supply devices. In the prior art, a support is used to accommodate a battery cell module, the battery cell module includes a plurality of battery cells, and then an adhesive substance is filled to encapsulate the plurality of battery cells. If the adhesive substance is too little, the adhesion is insufficient, which will affect the waterproof performance of the battery, and if the adhesive substance is too much, the battery pack will be heavy, which reduces the energy density of the battery.

[0036] To solve the problems in the prior art, the embodiments of the present application provide a battery and a power consumption device. The battery and the power consumption device provided by the embodiments of the present application will be described below with reference to the accompanying drawings.

[0037] Please refer to Figures 1 to 6In a first aspect, an embodiment of the present application provides a battery 10, comprising a battery cell module 1, a first support 2, a coating film 3, and a first adhesive 4. The battery cell module 1 comprises a plurality of battery cells 11. The battery cell 11 comprises a battery cell shell 111 and an electrode terminal 114. The battery cell shell 111 comprises a main body part 111a and a sealing part 111b. The main body part 111a comprises a first end 112 and a second end 113 along a first direction X. The electrode terminal 114 extends from the sealing part 111b. The first support 2 is arranged at the first end 112. The first support 2 and the battery cell module 1 are arranged along the first direction X. The first support 2 comprises a bottom wall 21, a first side wall 22, a second side wall 23, a third side wall 24, and a fourth side wall 25. The first side wall 22 and the third side wall 24 are connected to the bottom wall 21 along the first direction X. The second side wall 23 connects the first side wall 22 and the third side wall 24. The fourth side wall 25 connects the first side wall 22 and the third side wall 24. The first side wall 22 and the third side wall 24 are arranged at intervals along a second direction Y. The second side wall 23 and the fourth side wall 25 are arranged at intervals along a third direction Z. The first direction X, the second direction Y, and the third direction Z are perpendicular to each other. The coating film 3 at least covers part of the battery cell shell 111. The coating film 3 connects the outer side of the first side wall 22, the outer side of the second side wall 23, the outer side of the third side wall 24, and the outer side of the fourth side wall 25. Along the first direction X, the coating film 3 comprises a first side 31 and a second side 32. The first side 31 exceeds the first end 112. The first adhesive 4 connects the first end 112, the first side wall 22, the second side wall 23, the third side wall 24, and the fourth side wall 25.

[0038] The battery cell 11 can be a chromium-nickel battery cell, a hydrogen-nickel battery cell, a lithium-ion battery cell, a secondary alkaline zinc-manganese battery cell, or the like. The plurality of battery cells 11 can be arranged in sequence. The first support 2 is arranged at the first end 112 of the main body part 111a to fix the plurality of battery cells 11. Optionally, the coating film 3 is a heat-shrinkable film. The heat-shrinkable film can shrink when heated, such as a PVC (polyvinyl chloride) heat-shrinkable film, an anti-static PVC heat-shrinkable film, a POF (polyolefin) heat-shrinkable film, a PE (polyethylene) heat-shrinkable film, a PET (polyethylene terephthalate) heat-shrinkable film, or the like. The heat-shrinkable film is wrapped outside the plurality of battery cells 11. When heated, the heat-shrinkable film is curled and deformed and shrinks, and the shrunk heat-shrinkable film tightly wraps the plurality of battery cells 11.

[0039] The outer side of the first side wall 22 is the side of the first side wall 22 away from the battery cell 11 in the Y direction. The outer side of the second side wall 23 is the side of the second side wall 23 away from the battery cell 11 in the Z direction. The outer side of the third side wall 24 is the side of the third side wall 24 away from the battery cell 11 in the Y direction. The outer side of the fourth side wall 25 is the side of the fourth side wall 25 away from the battery cell 11 in the Z direction.

[0040] After the first support 2, the cell module 1 and the coating film 3 are installed, the first adhesive 4 needs to be injected. The first adhesive 4 is a flowable liquid before curing, and can play the roles of waterproof, moisture-proof, dust-proof, corrosion-proof and shock-proof for the battery 10 after curing. Optionally, the first adhesive 4 is one of epoxy resin, silicone resin and polyurethane. The first adhesive 4 is made of insulating material to prevent short circuit of the battery 10, and can be made of material with good heat conductivity to improve heat dissipation efficiency.

[0041] The battery 10 of the embodiment of the application includes the cell module 1, the first support 2, the coating film 3 and the first adhesive 4. The first support 2 is arranged at the first end 112 of the main body part 111a of the cell shell 111. The coating film 3 at least covers part of the cell shell 111, and the first side 31 of the coating film 3 exceeds the first end 112. The first adhesive 4 is arranged at the first end 112, and connects the first end 112, the first side wall 22, the second side wall 23, the third side wall 24 and the fourth side wall 25. By arranging the coating film 3, the coating film 3 is attached to the cell shell 111. When the first adhesive 4 is injected, the first adhesive 4 flows between the coating film 3 and the cell 11, and is hindered by the coating film 3 and the cell shell 111 after flowing a certain distance from the first end 112 to the second end 113. The first adhesive 4 is arranged at the first end 112 and connected to the first side wall 22, the second side wall 23, the third side wall 24 and the fourth side wall 25 of the first support 2, to realize local sealing of the cell module 1, improve the protection ability of the electrode terminal 114 and the waterproof ability of the cell 11, reduce the amount of the first adhesive 4 compared to complete packaging, and improve the energy density of the battery 10.

[0042] In some optional embodiments, the cell 11 includes a cell shell 111, an electrode assembly 115 arranged in the cell shell 111 and an electrode terminal 114 connected to the electrode assembly 115 and extending from the cell shell 111. The cell shell 111 includes a main body part 111a and a sealing part 111b. The main body part 111a accommodates the electrode assembly 115, and the sealing part 111b is connected to the main body part 111a. The electrode terminal 114 extends from the sealing part 111b.

[0043] For example, the cell shell 111 includes a first shell 1111 and a second shell 1112, the first shell 1111 is connected to the second shell 1112, and the first shell 1111 and the second shell 1112 can be folded along the connection position so that the first shell 1111 and the second shell 1112 coincide to form a main body part 111a to cover the electrode assembly 115. The periphery of the first shell 1111 extends outward to form a plurality of first extension parts 1113, and the periphery of the second shell 1112 extends outward to form a plurality of second extension parts 1114. After the first shell 1111 and the second shell 1112 are folded along the connection position, the first extension parts 1113 and the second extension parts 1114 coincide and are sealed and connected to form a sealing part 111b. The sealing part 111b includes a first sealing part 1115 and a second sealing part 1116, the first sealing part 1115 is arranged opposite to the connection position, and the electrode terminal 114 extends out of the main body part 111a from the first sealing part 1115. Optionally, the sealing part 111b includes two second sealing parts 1116, and the two second sealing parts 1116 are arranged opposite along the third direction Z. Optionally, the sealing part 111b includes one first sealing part 1115, and the cell 11 includes two electrode terminals 114, and the two electrode terminals 114 extend out of the cell shell 111 from the first sealing part 1115. In other embodiments, the first shell 1111 and the second shell 1112 are separated, the sealing part 111b includes two first sealing parts 1115, the two first sealing parts 1115 are arranged opposite along the first direction X, and the cell 11 includes two electrode terminals 114, one of which extends out of the cell shell 111 from one of the first sealing parts 1115, and the other of which extends out of the cell shell 111 from the other of the first sealing parts 1115, and the two electrode terminals 114 are arranged opposite along the first direction X.

[0044] In some embodiments, the electrode assembly 115 includes a winding structure formed by winding the positive electrode sheet, the negative electrode sheet, and the separator film. In other embodiments, the electrode assembly 115 can also be a stacking structure, that is, the positive electrode sheet, the separator film, and the negative electrode sheet are sequentially stacked to form an electrode unit, and a plurality of electrode units are stacked to form the electrode assembly 115. Optionally, the cell shell 111 includes an aluminum plastic film. Optionally, the cell 11 includes a soft package cell.

[0045] Please refer to Figure 7 and Figure 8 In some optional embodiments, the covering film 3 is connected to the first support 2 to form a containing space 5, and the cell module 1 is arranged in the containing space 5.

[0046] In these optional embodiments, the covering film 3 and the first support 2 enclose a containing space 5, and the cell module 1 is fixed by the covering film 3 and the first support 2, and the protection capability of the cell module 1 is improved by pouring the first adhesive substance 4 in the containing space 5.

[0047] Please refer to Figure 2 、 Figures 9 to 11 In some optional embodiments, the bottom wall 21 comprises a first surface 211 and a second surface 212 oppositely arranged along the first direction X, and a first through hole 213 communicating the first surface 211 and the second surface 212, the first support 2 further comprises a first protrusion 26 arranged on the second surface 212, and the first through hole 213 penetrates the first protrusion 26. The battery 10 further comprises a circuit board 6, the electrode terminal 114 is connected with the circuit board 6, the circuit board 6 comprises a first end surface 61 and a second end surface 62 oppositely arranged along the first direction X, the first end surface 61 faces away from the bottom wall 21, and the second end surface 62 is provided with electronic components 63, the circuit board 6 comprises a second through hole 64 communicating the first end surface 61 and the second end surface 62, and the first protrusion 26 passes through the second through hole 64.

[0048] The first through hole 213 penetrates the bottom wall 21 of the first support 2, so that the first adhesive 4 can be injected from one side of the bottom wall 21 to the other side of the bottom wall 21 through the first through hole 213, and the first through hole 213 penetrates the first protrusion 26, so that the first adhesive 4 can be injected to the surface of the battery cell 11 under the flow guiding effect of the first protrusion 26.

[0049] The circuit board 6 can be an adapter board, the electrode terminal 114 is bent after passing through the circuit board 6, the electrode terminals 114 of two adjacent battery cells 11 are bent towards each other after passing through the circuit board 6, and the circuit board 6 is electrically connected with the metal piece 9, the metal piece 9 is used for collecting electrical signal information of the battery cell 11, and the electrical signal information includes voltage, resistance, temperature and the like of the battery cell 11. The circuit board 6 can be electrically connected with each battery cell 11 in the battery cell module 1 to control the charging and discharging of each battery cell 11.

[0050] In these optional embodiments, the first protrusion 26 passes through the second through hole 64 on the circuit board 6, and when the first adhesive 4 is injected, the first adhesive 4 directly flows to the side of the circuit board 6 away from the bottom wall 21 under the flow guiding effect of the first protrusion 26, reducing the possibility of corrosion and damage to the circuit board 6, the circuit and the electronic components 63 on the circuit board 6 caused by the contact between the first adhesive 4 and the circuit board 6.

[0051] In some optional embodiments, at least part of the first end surface 61 is away from the first adhesive 4. When the first adhesive 4 is injected, the flow speed of the first adhesive 4 is controlled to reduce the possibility of the first adhesive 4 splashing onto the first end surface 61, and the damage to the circuit board 6, the circuit on the circuit board 6 and the electronic components 63 on the circuit board 6 caused by the first adhesive 4.

[0052] In some optional embodiments, the first support 2 further comprises a fifth side wall 27 connected with the bottom wall 21 along the first direction X, the fifth side wall 27 connects the first side wall 22 and the third side wall 24, and the fifth side wall 27 and the second side wall 23 are spaced apart along the third direction Z to form a first opening 28.

[0053] The size of the first opening 28 is defined by the spacing distance between the fifth side wall 27 and the second side wall 23. Optionally, the first support 2 further comprises a sixth side wall 29 connected with the first side wall 22 and the third side wall 24, and the sixth side wall 29 and the fourth side wall 25 are spaced apart along the third direction Z to form the first opening 28. That is, there are two first openings 28, and the two first openings 28 are spaced apart along the third direction Z.

[0054] In these optional embodiments, during the process of filling the first adhesive 4, the height of the first adhesive 4 can be observed through the first opening 28, reducing the possibility of overflow of the first adhesive 4. The first adhesive 4 covers the first sealing part 1115 of the battery cell 11, which is beneficial to improve the bending resistance of the electrode terminal 114 and also improves the waterproof performance of the battery 10.

[0055] In some optional embodiments, the projection of the fifth side wall 27 and the second side wall 23 on the third direction Z overlaps. A certain accommodating space is formed between the fifth side wall 27 and the second side wall 23, and the opening direction of the first opening 28 is towards the first direction X. When filling the first adhesive 4, a certain amount of the first adhesive 4 can be accommodated between the fifth side wall 27 and the second side wall 23, which is beneficial to provide protection for the battery cell 11, reduce direct contact between the battery cell 11 and the outside world, and reduce damage to the battery cell 11.

[0056] In some optional embodiments, on the third direction Z, the second side wall 23 is provided with a plurality of grooves 231 arranged in sequence on the side close to the battery cell module 1, and the grooves 231 accommodate part of the battery cell shell 111. The inner wall surface of the groove 231 is adapted to the outer contour of the battery cell shell 111. The battery cell shell 111 has a certain shape structure, and a plurality of grooves 231 adapted to the battery cell shell 111 are arranged, so that after a plurality of battery cells 11 are arranged in sequence, each battery cell 11 is partially arranged in the groove 231, and the groove 231 can limit the battery cell 11. The shape and number of the grooves 231 are determined according to the shape and number of the battery cell shell 111. Optionally, the inner wall surface of the groove 231 is a circular arc surface.

[0057] In some optional embodiments, along the first direction X, the second side wall 23 comprises a third end surface 232 close to the bottom wall 21, the distance L1 from the third end surface 232 to the bottom wall 21 is greater than the distance L2 from the first end surface 61 to the bottom wall 21; the fourth side wall 25 comprises a fourth end surface 251 close to the bottom wall 21, the distance L3 from the fourth end surface 251 to the bottom wall 21 is greater than the distance L2 from the first end surface 61 to the bottom wall 21. Optionally, L1 is equal to L3.

[0058] In these optional embodiments, along the first direction X, the height of the second side wall 23 and the fourth side wall 25 is lower than the height of the circuit board 6, in the process of filling the first adhesive material 4, the first adhesive material 4 is directly guided to the lower part of the circuit board 6 by the first protrusion 26, as the filling amount of the first adhesive material 4 increases, the liquid level of the first adhesive material 4 rises, the first adhesive material 4 can be observed from the first opening 28, reducing the possibility of the first adhesive material 4 contacting the circuit board 6, at the same time, when the amount of the first adhesive material 4 is too large, the first adhesive material 4 will overflow from the first opening 28, reducing the possibility of damaging the circuit board 6, at this time, the first opening 28 serves as both an observation port and an overflow protection port.

[0059] Please refer to Figure 1 and Figure 12 In some optional embodiments, the battery 10 further comprises a second support 7, the second support 7 is arranged at the second end 113, the second support 7 is arranged along the first direction X with the battery cell module 1; the cladding film 3 at least clads part of the second end 113, the surface of the second support 7 and the cladding film 3 away from the battery cell module 1 is connected.

[0060] The first support 2 and the second support 7 act simultaneously to limit the battery cell module 1, improving the structural strength of the battery 10. The cladding film 3 can completely clad the second end 113, or clad part of the second end 113. In the case of arranging the second support 7, the second support 7 can limit and protect the second end 113, and the cladding film 3 can clad part of the second end 113, thereby reducing the amount of the cladding film 3 used.

[0061] For example, during assembly, first arrange the first support 2 and the battery cell module 1, then clad the cladding film 3 to the first side wall 22, the second side wall 23, the third side wall 24 and the fourth side wall 25 of the first support 2 and the battery cell shell 111, the cladding film 3 clads the second end 113 of the battery cell shell 111, the cladding film 3 and the first support 2 completely clad the side and the first end 112 of the battery cell shell 111, finally install the second support 7 to the second end 113 of the battery cell shell 111, the cladding film 3 at the second end 113 is cladded by the second support 7. In these optional embodiments, the first support 2, the second support 7 and the cladding film 3 clad the plurality of battery cells 11, which is conducive to improving the protection performance of the battery cells 11.

[0062] In some optional embodiments, the first bracket 2 comprises a second protruding portion 2a and a base portion 2b, the base portion 2b is arranged at least partially around the second protruding portion 2a, and the second protruding portion 2a protrudes away from the battery module 1 relative to the base portion 2b.

[0063] The second protruding portion 2a can be used to accommodate other components of the battery 10, such as temperature sensors, communication units, and part of the electronic components 63 on the circuit board 6, etc.

[0064] Please refer to Figure 3 and Figure 13 In some optional embodiments, the battery 10 further comprises a second adhesive 8, the second adhesive 8 connects the fifth side wall 27 and the second side wall 23, and / or the second adhesive 8 connects the battery module 1 and the second bracket 7.

[0065] The second adhesive 8 connects the fifth side wall 27 and the second side wall 23, and the second adhesive 8 is arranged in the first opening 28 and closes at least part of the first opening 28, which is conducive to providing protection for the battery cell 11, reducing direct contact between the battery cell 11 and the outside world, reducing damage to the battery cell 11, and at the same time improving the structural strength of the first bracket 2. The second adhesive 8 is used to improve the firmness of the connection between the second bracket 7 and the battery module 1, and improve the structural strength of the battery 10. Optionally, the second adhesive 8 is a structural adhesive, such as high-performance silicone structural adhesive, neutral transparent silicone structural adhesive, polyurethane structural adhesive, and epoxy structural adhesive, etc. Optionally, the shape of the adhesive can be a shape of a hook, a C shape, or a plurality of strips.

[0066] Please refer to Figure 14 The second aspect of the present application provides a kind of electric equipment 100, electric equipment 100 includes the battery 10 of any one of the preceding first aspect, and the battery 10 provides electric energy for electric equipment 100.Electric equipment 100 can be mobile phone, wearable device, notebook computer, electric toy and electric tool etc.Electric toy includes fixed or mobile electric toy, for example, game machine, electric car toy, electric ship toy and electric aircraft toy etc.Electric tool includes metal cutting electric tool, grinding electric tool, assembly electric tool and railway electric tool, for example, electric drill, electric grinder, electric wrench, electric screwdriver, electric hammer, impact drill, concrete vibrator and electric planer etc.

[0067] The electric equipment 100 has the related structure of the battery 10 of the first aspect of the preceding embodiment, and the battery 10 provided by the above embodiments can be referred to, has all the beneficial effects of the battery 10 described above, which will not be repeated here.

[0068] In accordance with the embodiments of the application described above, these embodiments are not meant to be exhaustive or limiting of the application. Many modifications and variations of the described embodiments will be apparent to those of ordinary skill in the art having the benefit of the teachings of this application. It is intended that the scope of the application encompass these and all such modifications and variations.

Claims

1. A battery, characterized in that, include: A battery cell module includes multiple battery cells. Each battery cell includes a battery cell housing and electrode terminals. The battery cell housing includes a main body and a sealing part. The main body includes a first end and a second end along a first direction. The electrode terminals extend from the sealing part. A first bracket is disposed at the first end. The first bracket and the battery cell module are arranged along the first direction. The first bracket includes a bottom wall, a first side wall, a second side wall, a third side wall, and a fourth side wall. The first side wall and the third side wall are connected to the bottom wall along the first direction. The second side wall connects the first side wall and the third side wall. The fourth side wall connects the first side wall and the third side wall. The first side wall and the third side wall are spaced apart along the second direction. The second side wall and the fourth side wall are spaced apart along the third direction. The first direction, the second direction, and the third direction are perpendicular to each other. The bottom wall includes a first surface and a second surface arranged opposite to each other along the first direction, and a first through hole connecting the first surface and the second surface. The second surface faces the battery cell module. The first bracket also includes a first protrusion disposed on the second surface, and the first through hole penetrates the first protrusion. A coating film covers at least a portion of the cell housing. The coating film connects the outer side of the first sidewall, the outer side of the second sidewall, the outer side of the third sidewall, and the outer side of the fourth sidewall. Along the first direction, the coating film includes a first side and a second side, with the first side extending beyond the first end. A first adhesive material connects the first end, the first sidewall, the second sidewall, the third sidewall, and the fourth sidewall; The circuit board, wherein the electrode terminals are connected to the circuit board, the circuit board includes a first end face and a second end face disposed opposite to each other along the first direction, the first end face is away from the bottom wall, the second end face is provided with electronic components, the circuit board includes a second through hole, the second through hole connects the first end face and the second end face, and the first protrusion passes through the second through hole.

2. The battery according to claim 1, characterized in that, The coating film is connected to the first support to form a receiving space, and the battery cell module is disposed in the receiving space.

3. The battery according to claim 1, characterized in that, At least a portion of the first end face is separated from the first adhesive material.

4. The battery according to claim 1, characterized in that, The first support also includes a fifth sidewall, which is connected to the bottom wall along the first direction. The fifth sidewall connects the first sidewall and the third sidewall. The fifth sidewall and the second sidewall are spaced apart along the third direction to form a first opening. The projections of the fifth sidewall and the second sidewall in the third direction overlap.

5. The battery according to claim 4, characterized in that, On the third-party side, the second sidewall near the cell module has a plurality of grooves arranged in sequence, the grooves accommodating a portion of the cell housing.

6. The battery according to claim 5, characterized in that, Along the first direction, the second sidewall includes a third end face near the bottom wall, the distance from the third end face to the bottom wall being greater than the distance from the first end face to the bottom wall; The fourth sidewall includes a fourth end face near the bottom wall, and the distance from the fourth end face to the bottom wall is greater than the distance from the first end face to the bottom wall.

7. The battery according to claim 4, characterized in that, The battery also includes a second bracket, which is disposed at the second end and is arranged with the cell module along the first direction; the coating film covers at least a portion of the second end, and the second bracket is connected to the surface of the coating film away from the cell module.

8. The battery according to claim 7, characterized in that, The battery further includes a second adhesive material that connects the fifth sidewall and the second sidewall, and / or the second adhesive material connects the cell module and the second bracket.

9. An electrical appliance, characterized in that, The electrical device includes the battery according to any one of claims 1 to 8, wherein the battery provides electrical energy to the electrical device.

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