Battery and battery pack with same

Abstract

The utility model discloses a battery and a battery pack with the same. The battery comprises a protection plate; the first conductive connecting piece is arranged on the protection plate and electrically connected with the protection plate, and the first conductive connecting piece is provided with a first conductive surface; a battery cell body; the second conductive connecting piece is electrically connected with the tab of the battery cell body, and the second conductive connecting piece is provided with a second conductive surface; wherein at least part of the first conductive surface is attached to at least part of the second conductive surface, so that the battery cell body is detachably connected with the protection plate. The problem that the battery cell cannot be recycled due to the fact that the battery cell cannot be replaced and maintained in the prior art is solved.

Description

Technical Field

[0001] The present application relates to the technical field of battery design, and in particular to a battery and a battery having the same. Background Art

[0002] Lithium-ion batteries are widely used in the field of new energy because of their many advantages such as high energy density, excellent power performance and long cycle life.

[0003] At present, soft-pack lithium battery packs generally have non-replaceable battery cells, which is particularly prominent in mobile phones, laptops and digital products. Taking laptops as an example, laptop batteries all have built-in battery cells, and the battery cell tabs and protection boards are mainly connected by spot welding, which cannot be removed and replaced with new ones. If the battery cell is damaged, the entire laptop must be replaced, which not only brings economic losses to consumers, but also the battery cell cannot be repaired, which is not conducive to the secondary recycling of the battery cell. Utility Model Content

[0004] The main purpose of the present application is to provide a battery and a battery pack having the same, so as to solve the problem in the prior art that the battery cells cannot be replaced and repaired and thus cannot be recycled.

[0005] According to one aspect of the present application, a battery is provided, comprising: a protective plate; a first conductive connector, arranged on the protective plate and electrically connected to the protective plate, the first conductive connector having a first conductive surface; a battery cell body; a second conductive connector, electrically connected to a tab of the battery cell body, the second conductive connector having a second conductive surface; wherein at least a portion of the first conductive surface is in contact with at least a portion of the second conductive surface, so that the battery cell body and the protective plate are detachably connected.

[0006] Further, a first bump is disposed on the first conductive surface, and at least a portion of the first bump is in contact with the second conductive surface; and / or a second bump is disposed on the second conductive surface, and at least a portion of the second bump is in contact with the first conductive surface.

[0007] Furthermore, the first conductive connector includes: a first conductive body, connected to the protective plate; a second conductive body, arranged at an end of the first conductive body away from the protective plate, the second conductive body includes a connecting end and a free end arranged opposite to each other, the connecting end is connected to the first conductive body, and the free end extends toward the side of the first conductive body; wherein, there is an angle between the extension direction of the second conductive body and the extension direction of the first conductive body to form a buffer space between the second conductive body and the first conductive body, and the first conductive surface is arranged on the side of the second conductive body away from the first conductive body.

[0008] Furthermore, a positioning surface is provided on the protection plate, and the first conductive body includes: a first conductive segment, which is provided on the positioning surface and connected to the positioning surface; a second conductive segment, which is provided at an end of the first conductive segment away from the protection plate, and the second conductive segment is connected to the first conductive segment through a connecting segment, and a step structure is formed between the first conductive segment and the second conductive segment; wherein the connecting end of the second conductive body is connected to the second conductive segment.

[0009] Furthermore, a first protrusion is provided on the first conductive surface, the first protrusion protrudes relative to the first conductive surface toward the second conductive surface, and at least a portion of the first protrusion is in contact with the second conductive surface; and / or the first conductive body and the second conductive body are an integrally formed structure.

[0010] Furthermore, the battery also includes: a tab, the tab includes a first tab body and a second tab body, the first end of the first tab body is connected to the battery cell body, the second end of the first tab body is connected to the second tab body, the second tab body is located above the first tab body, and a through gap is provided between the second tab body and the first tab body; wherein at least a portion of the second conductive connector is provided in the through gap and is in contact with the first tab body and / or the second tab body.

[0011] Furthermore, the second conductive connecting member includes: a third conductive body, the second conductive surface is arranged on the third conductive body; a fourth conductive body, the fourth conductive body is arranged at the end of the third conductive body and connected to the third conductive body; at least a portion of the fourth conductive body is passed through the gap and is fitted with the first pole ear body and / or the second pole ear body.

[0012] Furthermore, the third conductive body includes: a third conductive segment, a fourth conductive segment, a fifth conductive segment and a sixth conductive segment connected in sequence, the third conductive segment is connected to the battery cell body, the fifth conductive segment is opposite to the third conductive segment, and the sixth conductive segment extends in a direction close to the third conductive segment at one end away from the fifth conductive segment; wherein the second conductive surface is arranged on the fifth conductive segment, and a filling space is arranged between the third conductive segment, the fourth conductive segment, the fifth conductive segment and the sixth conductive segment.

[0013] Furthermore, the second conductive connecting member also includes: a fifth conductive body, two ends of the fourth conductive body are respectively connected to the third conductive body and the fifth conductive body, the fifth conductive body is foldable relative to the fourth conductive body, and the fifth conductive body is located on the first side of the second pole ear body; at least part of the surface of the fifth conductive body is the second conductive surface; a third protrusion is arranged on the second conductive surface, and at least part of the third protrusion is in contact with the second pole ear body.

[0014] Furthermore, the second conductive connector also includes: a sixth conductive body, which is connected to an end of the fifth conductive body away from the fourth conductive body, and the sixth conductive body is foldable relative to the fifth conductive body, and the sixth conductive body is located on the second side of the first pole ear body; wherein the second side is arranged opposite to the first side.

[0015] On the other hand, the present application also provides a battery pack, including multiple batteries and a shell, the multiple batteries are respectively arranged in the shell, and the batteries are the above-mentioned batteries.

[0016] Furthermore, the shell includes: a lower cover, in which each battery is installed respectively; and an upper cover, which is buckled on the lower cover, and at least a part of the upper cover abuts against the surface of the battery cell body.

[0017] Compared with the prior art, the technical solution of this application has at least the following technical effects:

[0018] The battery in the present application is provided with a first conductive connector and a second conductive connector, a first conductive surface is provided on the first conductive connector, and a second conductive surface is provided on the second conductive connector, and at least a portion of the first conductive surface is bonded to the second conductive surface to achieve electrical connection between the first conductive surface and the second conductive surface, thereby achieving a detachable connection between the battery cell body and the protective plate; utilizing the bonding between the first conductive surface and the second conductive surface, there is no need for spot welding, thereby avoiding problems such as cold welding, desoldering, biased welding or spattering. When a battery fails, it is only necessary to disassemble the faulty battery cell body and replace it with a good battery cell body, without replacing the protective plate, thereby achieving the recovery and reuse of the battery cell body and solving the problem that the battery cell cannot be replaced, is disposable and cannot be recycled. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0020] Figure 1 It is a structural schematic diagram of the first embodiment of the battery disclosed in this application;

[0021] Figure 2 A schematic diagram of the coordination of the first conductive connector and the second conductive connector in the battery disclosed in the present application;

[0022] Figure 3 A schematic diagram of the cooperation between the protection plate and the first conductive connector in the battery disclosed in this application;

[0023] Figure 4 It is a schematic structural diagram of the first conductive connecting member in the battery disclosed in this application;

[0024] Figure 5 A schematic diagram of the cooperation between the battery cell body and the second conductive connector in the battery disclosed in this application;

[0025] Figure 6 A side view of the cooperation between the battery cell body and the second conductive connector in the battery disclosed in the present application;

[0026] Figure 7 This is a schematic structural diagram of the second conductive connector in the battery disclosed in this application;

[0027] Figure 8 This is a schematic diagram of the assembly of the battery and the housing in the battery pack disclosed in this application;

[0028] Fig. 9 A schematic diagram of the structure of the battery pack disclosed in this application;

[0029] Fig.10 It is a structural explosion diagram of the first embodiment of the battery pack disclosed in this application;

[0030] Fig.11 A schematic diagram of the cooperation between the first conductive connector and the electrode tab in the second embodiment of the battery disclosed in the present application;

[0031] Fig.12 A cross-sectional view of the cooperation between the first conductive connector and the electrode tab in the second embodiment of the battery disclosed in the present application;

[0032] Fig.13 It is a structural explosion diagram of the second embodiment of the battery pack disclosed in this application.

[0033] The above drawings include the following reference numerals:

[0034] 100, battery; 200, housing; 202, upper cover; 203, lower cover; 204, support column; 1, protection plate; 10, positioning surface; 2, first conductive connector; 20, first conductive surface; 201, first bump; 21, first conductive body; 210, first conductive segment; 211, second conductive segment; 212, connecting segment; 22, second conductive body; 23, buffer space; 24, seventh conductive body; 25, eighth conductive body; 26, connecting column; 3, battery cell body; 4, second conductive connector ; 40, second conductive surface; 41, third conductive body; 42, filling space; 410, third conductive segment; 411, fourth conductive segment; 412, fifth conductive segment; 413, sixth conductive segment; 43, fourth conductive body; 44, fifth conductive body; 401, third bump; 45, sixth conductive body; 5, pole ear; 51, first pole ear body; 52, second pole ear body; 53, through the gap; 54, first surface; 55, second surface; 56, avoidance gap; 6, filling component; 7, fastener. DETAILED DESCRIPTION

[0035] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0036] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0037] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0038] As mentioned in the background technology, in the battery of the prior art, the battery cell body and the protection plate are welded through the pole ear or the connecting piece, and the battery cell body cannot be removed from the battery separately after welding. Therefore, when one of the multiple battery cell bodies in the battery is damaged, the entire battery will be scrapped, which wastes resources, and the battery cell body cannot be repaired, which is not conducive to the secondary recycling of the battery cell. Therefore, in response to the above technical problems, the present application provides a battery, including a protection plate 1 and a battery body 3, wherein a first conductive connector 2 is provided on the protection plate 1, and a second conductive connector 4 is provided on the battery body 3, wherein a first conductive surface 20 is provided on the first conductive connector 2, and a second conductive surface 40 is provided on the second conductive connector 4, and at least a portion of the first conductive surface 20 is bonded to the second conductive surface 40 to achieve electrical connection between the first conductive surface 20 and the second conductive surface 40, so that the battery body 3 and the protection plate 1 are detachably connected, and no additional connecting components are required between the first conductive surface 20 and the second conductive surface 40, and no welding is required. As long as the two are bonded, current transmission can be achieved. When the battery body 3 needs to be replaced or repaired, the battery body 3 can be directly taken out without replacing the entire battery, thereby realizing the recycling of the battery body 3 and solving the problem that the traditional battery is scrapped as a whole due to a failure, thereby greatly reducing the user's usage cost.

[0039] See also Figures 1 to 7 As shown, the present application provides a battery, including a protection plate 1; a first conductive connector 2, which is arranged on the protection plate 1 and electrically connected to the protection plate 1, and the first conductive connector 2 has a first conductive surface 20; a battery cell body 3; a second conductive connector 4, which is electrically connected to the pole ear 5 of the battery cell body 3, and the second conductive connector 4 has a second conductive surface 40; wherein at least a portion of the first conductive surface 20 is in contact with at least a portion of the second conductive surface 40, so that the battery cell body 3 and the protection plate 1 can be detachably connected.

[0040] The battery provided by the present application includes a protection plate 1, a first conductive connector 2, a cell body 3, and a second conductive connector 4. The first conductive connector 2 is arranged on the protection plate 1 and electrically connected to the protection plate 1. The second conductive connector 4 is arranged on the cell body 3 and electrically connected to the pole ear 5 of the cell body 3. The first conductive connector 2 is provided with a first conductive surface 20, and the second conductive connector 4 is provided with a second conductive surface 40. At least part of the first conductive surface 20 is in contact with at least part of the second conductive surface 40, so that the cell body 3 is detachably connected to the protection plate 1. By providing the first conductive connector 2 and the second conductive connector 4, and by using the way that at least part of the first conductive surface 20 is in contact with the second conductive surface 40, the current transmission between the cell body 3 and the protection plate 1 is realized. No additional connection and fixing components need to be arranged between the first conductive connector 2 and the second conductive connector 4. When the cell body 3 needs to be dismantled, the cell body 3 can be directly taken out for repair or replacement. The operation is simple and convenient, which is conducive to the recycling of the cell body 3.

[0041] In the present application, the first conductive connection member 2 and the second conductive connection member 4 are preferably nickel sheets.

[0042] Specifically, a first bump 201 is provided on the first conductive surface 20, and at least a portion of the first bump 201 is in contact with the second conductive surface 40; or, a second bump is provided on the second conductive surface 40, and at least a portion of the second bump is in contact with the first conductive surface 20. By providing the first bump 201 on the first conductive surface 20, or providing the second bump on the second conductive surface 40, when the first conductive surface 20 contacts the second conductive surface 40, the first bump 201 or the second bump is used to make the first conductive connector 2 and the second conductive connector 4 more closely in contact, thereby avoiding overcurrent failure.

[0043] In the specific implementation process, Figure 3 and Figure 4As shown, the first conductive connector 2 includes: a first conductive body 21, connected to the protection plate 1; a second conductive body 22, arranged at one end of the first conductive body 21 away from the protection plate 1, the second conductive body 22 includes a connecting end and a free end arranged oppositely, the connecting end is connected to the first conductive body 21, and the free end extends toward the side of the first conductive body 21; wherein, an angle is formed between the extending direction of the second conductive body 22 and the extending direction of the first conductive body 21, so as to form a buffer space 23 between the second conductive body 22 and the first conductive body 21, and the first conductive surface 20 is arranged on the side of the second conductive body 22 away from the first conductive body 21. By using the buffer space 23, when the second conductive surface 40 is attached to the first conductive surface 20, the second conductive body 22 can withstand a certain pressure, so that the second conductive surface 40 and the first conductive surface 20 are attached more closely. In addition, the first conductive connecting member 2 is a nickel sheet, and the second conductive body 22 has a certain elasticity. When subjected to pressure from the second conductive surface 40, it applies a force toward the second conductive surface 40 under the action of its own elastic restoring force to ensure that the first conductive surface 20 and the second conductive surface 40 are tightly fitted.

[0044] Furthermore, the protection plate 1 is provided with a positioning surface 10, and the first conductive body 21 includes: a first conductive segment 210, which is provided on the positioning surface 10 and connected to the positioning surface 10; a second conductive segment 211, which is provided at one end of the first conductive segment 210 away from the protection plate 1, and the second conductive segment 211 is connected to the first conductive segment 210 through a connecting segment 212, and a step structure is formed between the first conductive segment 210 and the second conductive segment 211; wherein, the connecting end of the second conductive body 22 is connected to the second conductive segment 211. During the assembly process, the first conductive body 21 is positioned by the positioning surface 10 so that it is assembled at a predetermined position of the protection plate 1, and the step structure between the first conductive segment 210 and the second conductive segment 211 is utilized to make the second conductive segment 211 fit with the bottom surface of the shell, and when the second conductive connector 4 is pressed down, the first conductive connector 2 can withstand greater pressure, and at the same time, the connection between the battery cell body 3 and the protection plate 1 is made more compact.

[0045] In the embodiment provided in the present application, a first protrusion 201 is provided on the first conductive surface 20, the first protrusion 201 protrudes relative to the first conductive surface 20 toward the direction close to the second conductive surface 40, and at least a portion of the first protrusion 201 is in contact with the second conductive surface 40; and / or the first conductive body 21 and the second conductive body 22 are an integrally formed structure. Preferably, there are at least two first protrusions 201, and at least two first protrusions 201 are respectively in contact with the second conductive surface 40. In addition, the first conductive body 21 and the second conductive body 22 are arranged as an integrally formed structure, which improves the overall structural strength of the first conductive connector 2.

[0046] In the specific implementation process, the tab 5 includes a first tab body 51 and a second tab body 52, wherein the first end of the first tab body 51 is connected to the cell body 3, the second end of the first tab body 51 is connected to the second tab body 52, the second tab body 52 is located above the first tab body 51, and a through gap 53 is provided between the second tab body 52 and the first tab body 51; wherein at least part of the second conductive connector 4 is provided in the through gap 53, and is fitted with the first tab body 51 and / or the second tab body 52. ​​By providing the through gap 53 on the tab 5, the second conductive connector 4 is conveniently electrically connected to the tab 5, thereby realizing current transmission.

[0047] Specifically, Figures 5 to 7 As shown, the second conductive connector 4 includes: a third conductive body 41, on which the second conductive surface 40 is disposed; a fourth conductive body 43, which is disposed at the end of the third conductive body 41 and connected to the third conductive body 41; at least a portion of the fourth conductive body 43 is disposed through the gap 53 and is bonded to the first tab body 51 and / or the second tab body 52. ​​In this arrangement, the third conductive body 41 is connected to the first conductive connector 2, and the fourth conductive body 43 is connected to the tab 5, so that the current in the cell body 3 is transmitted to the protection plate 1 by using the third conductive body 41 and the fourth conductive body 43.

[0048] Further, the third conductive body 41 includes: a third conductive segment 410, a fourth conductive segment 411, a fifth conductive segment 412 and a sixth conductive segment 413 connected in sequence, the third conductive segment 410 is connected to the battery cell body 3, the fifth conductive segment 412 is opposite to the third conductive segment 410, and the sixth conductive segment 413 extends from one end of the fifth conductive segment 412 to the direction close to the third conductive segment 410; wherein the second conductive surface 40 is arranged on the fifth conductive segment 412, and a filling space 42 is arranged between the third conductive segment 410, the fourth conductive segment 411, the fifth conductive segment 412 and the sixth conductive segment 413. wherein a filling component 6 is arranged in the filling space 42, and the second conductive connector 4 is fixed and the strength of the second conductive connector 4 is ensured by the filling component 6, that is, when the fifth conductive segment 412 is attached to the first conductive connector 2, the second conductive connector 4 is kept stable, so that the first conductive surface 20 and the second conductive surface 40 are closely attached.

[0049] In the embodiment provided in the present application, the second conductive connector 4 further includes: a fifth conductive body 44, two ends of the fourth conductive body 43 are connected to the third conductive body 41 and the fifth conductive body 44 respectively, the fifth conductive body 44 is foldable relative to the fourth conductive body 43, and the fifth conductive body 44 is located on the first side of the second pole ear body 52; at least part of the surface of the fifth conductive body 44 is the second conductive surface 40; a third protrusion 401 is arranged on the second conductive surface 40, and at least part of the third protrusion 401 is in contact with the second pole ear body 52. ​​The third protrusion 401 makes the second conductive connector 4 and the pole ear 5 more closely in contact, avoiding the problem of poor current flow. Preferably, there are at least two third protrusions 401, and at least two third protrusions 401 are in contact with the second pole ear body 52, so that when the second pole ear body 52 is in contact, it is convenient to buckle and lock with the second pole ear body 52 and apply pressure, so that the second conductive connector 4 and the pole ear 5 are tightly buckled and not easy to loosen or move.

[0050] The second conductive connector 4 further includes: a sixth conductive body 45, which is connected to an end of the fifth conductive body 44 away from the fourth conductive body 43, and is foldable relative to the fifth conductive body 44, and is located on the second side of the first tab body 51; wherein the second side is arranged opposite to the first side. By folding the fifth conductive body 44 and the sixth conductive body 45, they are mutually limited relative to the four sides of the tab 5, thereby preventing the second conductive connector 4 from displacement.

[0051] Preferably, the third conductive body 41, the fourth conductive body 43, the fifth conductive body 44 and the sixth conductive body 45 are an integrally formed structure; wherein the fourth conductive body 43 and the fifth conductive body 44 are connected through a first connecting body, first notches are respectively provided at both ends of the first connecting body, the first notches are recessed toward the middle of the first connecting body, and a first through hole is provided on the first connecting body, so that after the fourth conductive body 43 passes through the gap 53, the fifth conductive body 44 is folded through the first connecting body, and due to the design of the first notch and the first through hole, the stress of the first connecting body is concentrated, so that the fifth conductive body 44 is more easily folded to one side of the second pole ear body 52; in addition, the fifth conductive body 44 and the sixth conductive body 45 are connected through a second connecting body, second notches are provided at both ends of the second connecting body, the second notches are recessed toward the middle of the second connecting body, and a second through hole is provided on the second connecting body, so that after the fifth conductive body 44 is folded, it is convenient to fold the sixth conductive body 45, so that the second conductive connector 4 and the pole ear 5 are tightly connected.

[0052] After the second conductive connector 4 and the tab 5 are assembled, the bent and fastened semi-finished battery is placed into a low-temperature injection molding jig, and the injection area is injected with foam glue from the injection port of the jig through a low-temperature injection molding machine. The injection volume is 1 / 3 of the overall injection space volume. After the foam glue is solidified, the excess material overflowing the injection port is cut off to form a filling component 6, which is the end of the overall assembly and process flow. Among them, the foam low-temperature injection molding material is foam glue, which can produce various irregular cavities and bubbles inside the injection molded part without affecting the appearance, and is lighter than solid injection molded parts.

[0053] The present application also provides a battery, such as Figures 8 to 10 As shown, it includes a plurality of batteries 100 and a shell 200 . The plurality of batteries 100 are respectively arranged in the shell 200 . The batteries 100 are the batteries 100 of the above embodiment.

[0054] Specifically, the shell 200 includes an upper cover 202 and a lower cover 203, and each battery is installed in the lower cover 203 respectively. The upper cover 202 is buckled on the lower cover, and at least a portion of the upper cover 202 abuts against the surface of the battery cell body 3 of the battery 100. In this way, after the battery is assembled, at least a portion of the upper cover 202 fits with the surface of the battery cell body 3, applying a certain pressure to the battery cell body 3, and then while limiting the battery 100, the second conductive connector 4 on the battery cell body 3 is always tightly fitted with the first conductive connector 2, ensuring stable current transmission.

[0055] During the actual assembly process, the first conductive connector 2 and the protective plate 1 are first assembled into a semi-finished product in a patch manner, that is, the first conductive connector 2 is welded to the protective plate 1, and the lower cover 203 of the shell 200 is placed in the assembly jig, and then the semi-finished protective plate is placed in the installation frame of the lower cover 203, and multiple batteries 100 are placed in each battery cell separation groove of the lower cover in turn, so that the second conductive connector 4 and the first conductive connector 2 are correspondingly fitted; secondly, the upper cover 202 of the shell 200 is aligned with the card slot of the lower cover 203 and buckled into it, so that it is completely fitted and pressed with the battery to prevent the battery from loosening, and finally a label is affixed to complete the battery assembly.

[0056] Battery recycling steps: When a cell is damaged or fails in the battery, discharge the battery, then remove the upper cover and label; remove the failed cell from the battery without removing the protection plate, hand the failed cell to the after-sales department and remove the filling component 6, then detect, find the source, and troubleshoot the failed cell, replace the nickel sheet (second conductive connector 4) or refill the filling component 6, so that the failed cell is converted into a good cell and the cell is reused. After eliminating the failed cell or replacing the battery with a good cell, buckle the upper cover into the lower cover slot and attach the label to achieve the recycling of the entire battery pack, reducing rework and after-sales costs.

[0057] In another embodiment provided in the present application, Figures 11 to 13 As shown, different from the above embodiment, in this embodiment, the second conductive connector 4 is not required, and the first conductive connector 2 is directly connected to the pole lug 5. Specifically, the first conductive connector 2 includes a seventh conductive body 24 and an eighth conductive body 25 connected in sequence, the seventh conductive body 24 is connected to the positioning surface 10 on the protection plate 1, and a second step structure is provided between the seventh conductive body 24 and the eighth conductive body 25. The first conductive surface 20 is provided on the eighth conductive body 25, and a connecting column 26 is provided on the side of the eighth conductive body 25 away from the first conductive surface 20, and a threaded hole is provided in the connecting column 26.

[0058] The pole lug 5 includes a first surface 54 and a second surface 55 that are arranged opposite to each other, and at least a portion of the first conductive surface 20 is in contact with the second surface 55. The battery also includes a fastener 7, which passes through the pole lug 5 and is arranged in the threaded hole, and is threadedly connected to the connecting column 26, and at least a portion of the fastener 7 is in contact with the first surface 54, so that the first conductive connector 2 is tightly connected to the pole lug 5.

[0059] Specifically, the tab 5 is provided with an escape notch 56, and at least part of the fastener 7 is arranged in the escape notch 56, so that the fastener 7 is escaped by the escape notch 56. Preferably, the fastener 7 is an M2×2.5 screw, so that the protection plate 1 and the battery body 3 are detachably connected by screwing the fastener 7.

[0060] In this embodiment, a support column 204 is provided on the upper cover 202 of the battery housing 200. The support column 204 is arranged opposite to the fastener 7 and abuts against the fastener 7, which can limit and fix the fastener 7 and effectively prevent the fastener 7 from loosening and causing poor overcurrent.

[0061] When assembling the battery pack, the first conductive connector 2 and the protection plate 1 are assembled into a semi-finished product in a patch manner. Thereafter, the protection plate 1 is placed in a semi-finished product assembly jig, and the pole ears 5 of all the battery cell bodies 3 are cut to form an avoidance gap 56. Then, each battery cell body 3 is placed in turn into the battery cell slot corresponding to the semi-finished product assembly jig, and the avoidance gap 56 of the pole ear 5 is aligned with the threaded hole of the connecting column 26, and then the fasteners 7 are locked into the threaded holes in turn and locked and fixed; further, the lower cover 203 of the shell 200 is placed in the finished product assembly jig, and the assembled battery cell body 3 and the protection plate 1 are placed in the installation frame of the lower cover 203, and the upper cover 202 is aligned with the slot of the lower cover 203 and buckled in, so that the upper cover 202 and the lower cover 203 are completely fitted and buckled, and the support column abuts against the fastener 7 to prevent the fastener 7 from loosening. Finally, the label is affixed to complete the assembly of the battery pack.

[0062] Recycling steps: When a cell is damaged or fails in the battery pack, the entire battery pack is discharged, and then the upper cover 202 and the label are removed, the fastener 7 corresponding to the faulty cell body 3 is unlocked, and the faulty cell body 3 is taken out without removing the protection plate 1. The faulty cell body 3 is handed over to the after-sales and other relevant departments for detection, source tracing and troubleshooting, and then evaluated for repair or recycling for secondary use; after the faulty cell is eliminated or the good cell is replaced, the upper cover 202 is buckled into the slot of the lower cover 203, and the label and Mylar sheet are affixed to achieve the recycling of the entire battery pack and reduce rework and after-sales costs.

[0063] From the above description, it can be seen that the above embodiments of the present application achieve the following technical effects:

[0064] The battery provided by the present application includes a protection plate 1, a first conductive connector 2, a cell body 3, and a second conductive connector 4. The first conductive connector 2 is arranged on the protection plate 1 and electrically connected to the protection plate 1. The second conductive connector 4 is arranged on the cell body 3 and electrically connected to the pole ear 5 of the cell body 3. The first conductive connector 2 is provided with a first conductive surface 20, and the second conductive connector 4 is provided with a second conductive surface 40. At least part of the first conductive surface 20 is in contact with the second conductive surface 40, so that the cell body 3 is detachably connected to the protection plate 1. By providing the first conductive connector 2 and the second conductive connector 4, and by using the method that at least part of the first conductive surface 20 is in contact with at least part of the second conductive surface 40, the current transmission between the cell body 3 and the protection plate 1 is realized. No additional connection and fixing components need to be arranged between the first conductive connector 2 and the second conductive connector 4. When the cell body 3 needs to be removed, the cell body 3 can be directly taken out. The operation is simple and convenient, which is conducive to the recycling of the cell body 3.

[0065] In addition, the battery cells of the present application can be connected in multiple series or in parallel, meeting the design requirements of multiple series and multiple parallel of the battery pack. When the battery cells in the battery are damaged or faulty, they can be removed and replaced with good battery cells. The battery cell body in the present application is connected in series or in parallel with the protection board through the first conductive connector 2 and the second conductive connector 4 of the protruding filling component 6, so as to charge the battery cell or power the terminal; the battery cell body 3 and the second conductive connector 4 are assembled into an integrated structure, which can flexibly realize the battery design composed of multiple series or multiple parallel, can be infinitely stacked, and can be replaced at any time.

[0066] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0067] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0068] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A battery, characterized in that: include: Protection plate (1); A first conductive connecting member (2), arranged on the protective plate (1) and electrically connected to the protective plate (1), the first conductive connecting member (2) having a first conductive surface (20); Battery cell body (3); A second conductive connecting member (4) electrically connected to the tab (5) of the battery cell body (3), the second conductive connecting member (4) having a second conductive surface (40); At least part of the first conductive surface (20) is in contact with at least part of the second conductive surface (40), so that the battery cell body (3) and the protective plate (1) are detachably connected.

2. The battery according to claim 1, characterized in that A first convex block (201) is provided on the first conductive surface (20), and at least a portion of the first convex block (201) is in contact with the second conductive surface (40); and / or, A second convex block is provided on the second conductive surface (40), and at least a portion of the second convex block is in contact with the first conductive surface (20).

3. The battery according to claim 1, characterized in that The first conductive connecting member (2) comprises: A first conductive body (21) connected to the protection plate (1); a second conductive body (22), arranged at an end of the first conductive body (21) away from the protective plate (1), the second conductive body (22) comprising a connecting end and a free end arranged opposite to each other, the connecting end being connected to the first conductive body (21), and the free end extending toward the side of the first conductive body (21); The extension direction of the second conductive body (22) and the extension direction of the first conductive body (21) form an angle so as to form a buffer space (23) between the second conductive body (22) and the first conductive body (21), and the first conductive surface (20) is arranged on a side of the second conductive body (22) away from the first conductive body (21).

4. The battery according to claim 3, characterized in that The protection plate (1) is provided with a positioning surface (10), and the first conductive body (21) comprises: A first conductive segment (210) is disposed on the positioning surface (10) and connected to the positioning surface (10); a second conductive segment (211), arranged at an end of the first conductive segment (210) away from the protective plate (1), the second conductive segment (211) being connected to the first conductive segment (210) via a connecting segment (212), and a step structure being formed between the first conductive segment (210) and the second conductive segment (211); Wherein, the connection end of the second conductive body (22) is connected to the second conductive segment (211).

5. The battery according to claim 3, characterized in that A first convex block (201) is provided on the first conductive surface (20), the first convex block (201) protrudes relative to the first conductive surface (20) in a direction close to the second conductive surface (40), and at least a part of the first convex block (201) is in contact with the second conductive surface (40); and / or The first conductive body (21) and the second conductive body (22) are an integrally formed structure.

6. The battery according to claim 1, characterized in that The pole lug (5) comprises a first pole lug body (51) and a second pole lug body (52); the first end of the first pole lug body (51) is connected to the battery cell body (3); the second end of the first pole lug body (51) is connected to the second pole lug body (52); the second pole lug body (52) is located above the first pole lug body (51), and a through gap (53) is provided between the second pole lug body (52) and the first pole lug body (51); Wherein, at least a portion of the second conductive connecting member (4) is disposed in the through gap (53) and is in contact with the first pole tab body (51) and / or the second pole tab body (52).

7. The battery according to claim 6, characterized in that The second conductive connecting member (4) comprises: A third conductive body (41), wherein the second conductive surface (40) is arranged on the third conductive body (41); A fourth conductive body (43), wherein the fourth conductive body (43) is arranged at the end of the third conductive body (41) and connected to the third conductive body (41); at least a portion of the fourth conductive body (43) is passed through the through gap (53) and is in contact with the first pole lug body (51) and / or the second pole lug body (52).

8. The battery according to claim 7, characterized in that The third conductive body (41) comprises: a third conductive segment (410), a fourth conductive segment (411), a fifth conductive segment (412) and a sixth conductive segment (413) connected in sequence, the third conductive segment (410) being connected to the battery cell body (3), the fifth conductive segment (412) being opposite to the third conductive segment (410), and the sixth conductive segment (413) extending from one end of the fifth conductive segment (412) toward the direction close to the third conductive segment (410); The second conductive surface (40) is arranged on the fifth conductive segment (412), and a filling space (42) is arranged between the third conductive segment (410), the fourth conductive segment (411), the fifth conductive segment (412) and the sixth conductive segment (413).

9. The battery according to claim 7, characterized in that The second conductive connecting member (4) further comprises: a fifth conductive body (44), wherein two ends of the fourth conductive body (43) are respectively connected to the third conductive body (41) and the fifth conductive body (44), the fifth conductive body (44) is foldably arranged relative to the fourth conductive body (43), and the fifth conductive body (44) is located on a first side of the second tab body (52); At least a portion of the surface of the fifth conductive body (44) is the second conductive surface (40); A third protrusion (401) is provided on the second conductive surface (40), and at least a portion of the third protrusion (401) is in contact with the second tab body (52).

10. The battery according to claim 9, characterized in that The second conductive connecting member (4) further comprises: A sixth conductive body (45), the sixth conductive body (45) is connected to an end of the fifth conductive body (44) away from the fourth conductive body (43), the sixth conductive body (45) is foldably arranged relative to the fifth conductive body (44), and the sixth conductive body (45) is located on the second side of the first pole lug body (51); wherein the second side is arranged opposite to the first side.

11. A battery pack, comprising a plurality of batteries (100) and a housing (200), wherein the plurality of batteries (100) are respectively arranged in the housing (200), characterized in that: The battery (100) is the battery (100) according to any one of claims 1 to 10.

12. The battery pack according to claim 11, characterized in that: The housing (200) comprises: A lower cover (203), wherein each of the batteries (100) is installed in the lower cover (203); The upper cover (202) is buckled on the lower cover (203), and at least a portion of the upper cover (202) abuts against a surface of a cell body (3) of the battery (100).

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