battery

CN121149636BActive Publication Date: 2026-10-09NIO TECH ANHUI CO LTD
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Patent Information

Application Number
CN202410772545.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-06-14
Publication Date
2026-10-09
Estimated Expiration
2044-06-14

AI Technical Summary

Technical Problem

[0005]本发明旨在解决上述技术问题,即,解决现有的支撑框与电芯在壳体内晃动导致影响电池使用安全的问题

Benefits of technology

[0005] The present invention aims to solve the above-mentioned technical problems, namely, to solve the problem that the existing support frame and battery cell sway within the casing, which affects the safety of battery use.

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Abstract

The present application relates to the technical field of new energy, and particularly provides a battery, which aims to solve the problem that the existing support frame shakes in the shell to affect the safety of the battery in use. To this end, the present application provides a battery, which comprises a shell, a battery cell accommodated in the shell, and an insulation assembly, the insulation assembly comprising a support frame for accommodating the battery cell and an insulation piece fixed in the shell, and the support frame is fixedly connected with the insulation piece. The insulation piece is fixed in the shell, and the support frame is fixedly connected with the insulation piece, so that the support frame is stably fixed in the shell to prevent shaking in the shell, reduce damage to the battery cell, and ensure the structural stability and safety of the battery in use.
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Description

Technical Field

[0001] This invention relates to the field of new energy technology, specifically providing a battery. Background Technology

[0002] With the improvement of people's living standards and the development of science and technology, the scale of the new energy industry is expanding rapidly and is accelerating the replacement of traditional energy sources, including batteries.

[0003] Traditional batteries consist of a casing, battery cells housed within the casing, and a support frame. The battery cells are housed within the support frame to provide support and prevent deformation. However, batteries often shake during manufacturing and use, causing the support frame and battery cells to move within the casing, leading to damage to both and potentially affecting battery safety.

[0004] Therefore, a new technical solution is needed in this field to solve the above problems. Summary of the Invention

[0005] The present invention aims to solve the above-mentioned technical problems, namely, to solve the problem that the existing support frame and battery cell sway within the casing, which affects the safety of battery use.

[0006] In a first aspect, the present invention provides a battery including a housing, a battery cell housed within the housing, and an insulating assembly, the insulating assembly including a support frame housing the battery cell and an insulating member fixed within the housing, the support frame being fixedly connected to the insulating member.

[0007] By adopting the above technical solution, the support frame and the battery cell are fixedly fixed inside the housing by the insulating component and the support frame is fixedly connected to the insulating component, thereby preventing shaking inside the housing, reducing damage to the support frame and the battery cell, and ensuring the structural stability and safe use of the battery.

[0008] In the preferred embodiment of the battery described above, the support frame is snapped together with the insulating component.

[0009] In the preferred embodiment of the battery described above, the battery further includes a hook and a slot, wherein the hook is connected to the slot, and the hook is fixed to the support frame, and the slot is disposed on the insulating member; or, the hook is fixed to the insulating member, and the slot is disposed on the support frame.

[0010] In the preferred embodiment of the above-mentioned battery, the housing includes a first outer shell, a separator, and a second outer shell. Two cells are provided and are respectively located between the first outer shell and the separator and between the second outer shell and the separator. The separator is provided with a conductive element, and the tabs of the two cells are respectively connected to the conductive element.

[0011] In the preferred embodiment of the battery described above, two insulating components are provided, one between the first outer shell and the other between the second outer shell and the third outer shell.

[0012] In the preferred embodiment of the battery described above, the insulating component is fixed between the conductive component and the separator.

[0013] In the preferred embodiment of the battery described above, the support frame includes a bracket, which is located at one end of the length direction of the battery cell, and the bracket is snap-fitted to the insulating component.

[0014] In the preferred embodiment of the battery described above, the support has a channel through which the tabs of the battery cell pass.

[0015] In the preferred embodiment of the battery described above, the support frame further includes a connecting plate located at one end of the width direction of the battery cell, and the connecting plate is snap-fitted to the bracket.

[0016] In the preferred embodiment of the battery described above, the connecting plate is fixedly connected to the battery cell. Attached Figure Description

[0017] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

[0018] Figure 1 This is an exploded view of one embodiment of the battery of the present invention;

[0019] Figure 2 This is an exploded view of one embodiment of the battery cell and support frame of the present invention;

[0020] Figure 3 This is an exploded view of one embodiment of the support frame of the present invention;

[0021] Figure 4 This is a perspective view of one embodiment of the partition and insulating component of the present invention;

[0022] Figure 5 yes Figure 4 A magnified view of part A shown;

[0023] Figure 6 This is a perspective view of one embodiment of the battery cell, support frame, separator, and insulating component of the present invention;

[0024] Figure 7 yes Figure 6 A magnified view of part B shown.

[0025] List of reference numerals in the attached diagram:

[0026] 100. Battery; 1. First casing; 2. Separator; 3. Second casing; 4. Cell; 41. Tab; 42. Adhesive; 5. Insulating component; 51. Hook; 6. Support frame; 61. Bracket; 611. Support rod; 612. Slot; 613. Channel; 62. Connecting plate; 7. Conductive component. Detailed Implementation

[0027] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0028] It should be noted that in the description of this invention, terms such as "inner," "outer," "upper," "lower," "top," "bottom," "left," "right," "front," and "rear," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "set," "connect," and "install" should be interpreted broadly, for example, referring to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0030] Specifically, first refer to Figures 1 to 7 , Figure 1 This is an exploded view of one embodiment of the battery of the present invention. Figure 2 This is an exploded view of one embodiment of the battery cell and support frame of the present invention. Figure 3 This is an exploded view of one embodiment of the support frame of the present invention. Figure 4 This is a perspective view of one embodiment of the partition and insulating component of the present invention. Figure 5 yes Figure 4 The enlarged view of part A shown below. Figure 6 This is a perspective view of one embodiment of the battery cell, support frame, separator, and insulating component of the present invention. Figure 7 yes Figure 6 A magnified view of part B shown.

[0031] In one embodiment, such as Figures 1 to 7 As shown, the battery 100 provided by the present invention includes a casing and a battery cell 4 housed within the casing.

[0032] Preferably, the shell can be made of materials such as aluminum, aluminum-plastic film, or steel. The material of the shell can be selected as needed and is not specifically limited here. Furthermore, the shell can be a cuboid, cylinder, or polygonal pyramid, and the user can choose according to their needs. In this embodiment, the shell is an aluminum shell and is a cuboid.

[0033] More preferably, the battery cell 4 includes a positive electrode plate, a negative electrode plate, and a separator located between the positive and negative electrode plates. The separator is used to insulate the positive and negative electrode plates and prevent them from contacting each other and causing a short circuit. Furthermore, the battery cell 4 can be manufactured using processes such as winding and stacking. Users can choose the settings according to their needs, and no specific limitations are made here.

[0034] More preferably, the battery cell 4 includes at least two tabs 41, which are positive and negative tabs respectively. The two tabs 41 can be located at both ends of the battery cell 4, such as at opposite ends or adjacent ends of the battery cell 41, or at one end of the battery cell 4, etc. The user can choose to set them according to their needs, and no specific limitation is made here.

[0035] In one embodiment, the battery 100 also includes an insulating component.

[0036] Preferably, the insulating component is housed within the housing and serves to fix and insulate the battery cell 4, preventing the battery cell 4 from contacting other metal structures such as the housing, while also preventing damage to the battery cell 4 from shaking, thus protecting the battery cell 4 and ensuring its safety and service life.

[0037] In one embodiment, the insulating assembly includes a support frame 6 for housing the battery cell 4 and an insulating member 5 fixed within the housing, wherein the support frame 6 and the insulating member 5 are fixedly connected.

[0038] Preferably, the support frame 6 is housed within the housing, and the support frame 6 covers the battery cell 4. The side of the battery cell 4 is attached to the inner surface of the support frame 6. By covering the battery cell 4 with the support frame 6, the battery cell 4 is fixed and insulated. On the one hand, this prevents the battery cell 4 from impacting the inner surface of the housing and causing damage to the battery cell 4. On the other hand, it achieves insulation between the battery cell 4 and the housing, ensuring the safety of the battery cell 4.

[0039] More preferably, the shape of the support frame 6 is adapted to the shape of the battery cell 4. In this embodiment, the battery cell 4 is a cuboid and the support frame 6 is also a cuboid, so that the support frame 6 can fully and tightly cover the battery cell 4, enhancing the fixing and insulation effect of the battery cell 4.

[0040] More preferably, the insulating component 5 is fixedly connected to the inner surface of the housing, such as by bonding the insulating component 5 to the inner surface of the housing, or by injection molding or nano-injection molding the insulating component 5 onto the inner surface of the housing, thereby achieving a stable connection between the insulating component 5 and the housing. In other embodiments, the insulating component 5 and the inner surface of the housing may also adopt other fixed connection methods, which are not specifically limited here.

[0041] Furthermore, the support frame 6 is located on one side of the insulating member 5. Preferably, the insulating member 5 is located between the inner surface of the battery cell 4 and the housing, which facilitates the fixed connection between the support frame 6 and the insulating member 5, so as to achieve a stable connection between the support frame 6 and the housing and prevent the support frame 6 from shaking inside the housing and causing damage to the battery cell 4.

[0042] In one embodiment, such as Figure 7 As shown, the support frame 6 is snapped together with the insulating component 5.

[0043] Preferably, the support frame 6 and the insulating component 5 are connected by a snap-fit, which facilitates the installation and removal of the support frame 6 and the insulating component 5 and reduces the difficulty of the assembly process.

[0044] In one embodiment, the battery 100 further includes a hook and a slot, the hook being connected to the slot, wherein the hook is fixed to the insulating member 5 and the slot is disposed on the support frame 6; or, the hook is fixed to the support frame 6 and the slot is disposed on the insulating member 5.

[0045] In one embodiment, such as Figure 7 As shown, the card slot 612 is disposed on the support frame 6, and the card hook 51 is fixed on the insulating part 5. The card hook 51 is connected to the card slot 612.

[0046] Preferably, the slot 612 is disposed on the surface of the support frame 6 opposite to the insulating member 5, and the slot 612 is recessed inward from the surface of the support frame 6. Furthermore, one or more slots 612 may be provided, and the user may choose to provide them as needed, without specific limitation.

[0047] More preferably, the hook 51 is disposed on the surface of the insulating member 5 facing the support frame 6. The hook 51 protrudes outward from the surface of the insulating member 5 and is inserted into the slot 612 to achieve a snap-fit ​​connection between the hook 51 and the slot 612.

[0048] Preferably, the number of hooks 51 is the same as the number of slots 612 and they correspond one-to-one, so that each hook 51 can be inserted into its corresponding slot 612 to achieve a stable connection between the support frame 6 and the insulating component 5.

[0049] In another embodiment, the hook is fixed to the support frame 6, and the slot is provided on the insulating member 5, with the hook connected to the slot.

[0050] Preferably, in order to connect the support frame 6 and the insulating component 5, the hook can be fixed on the support frame 6 and the slot can be set on the insulating component 5. The hook can be inserted into the slot to achieve the snap-fit ​​connection between the support frame 6 and the insulating component 5.

[0051] In one embodiment, the housing includes a first outer shell 1, a partition 2, and a second outer shell 3. Two battery cells 4 are provided and respectively housed between the first outer shell 1 and the partition 2 and between the second outer shell 3 and the partition 2. The partition 2 is provided with a conductive element 7, and the tabs 41 of the two battery cells 4 are respectively electrically connected to the conductive element 7.

[0052] Preferably, the partition 2 is located between the first outer shell 1 and the second outer shell 3. The partition 2 is fixedly connected to the first outer shell 1 to form a first cavity inside, and the partition 2 is fixedly connected to the second outer shell 3 to form a second cavity inside. At least one battery cell 4 is respectively housed within the first cavity and the second cavity, thereby allowing multiple battery cells to be placed within a single housing, saving space and improving space utilization. The connection between the partition 2 and the first outer shell 1 or the second outer shell 3 can be achieved by welding, bonding, or other connection methods. Users can choose the appropriate method as needed, and no specific limitation is made here.

[0053] More preferably, the partition 2 is provided with a through hole (not shown), the conductive element 7 passes through the through hole, one end of the conductive element 7 is in the first cavity and the other end is in the second cavity, and a sealing ring (not shown) is provided between the conductive element 7 and the partition 2 to achieve a seal between the first cavity and the second cavity.

[0054] More preferably, one tab of the battery cell 4 in the first cavity is fixedly connected to one end of the conductive element 7 within the first cavity, such as by welding, to achieve electrical connection between the battery cell 4 and the conductive element 7 within the first cavity, and the other tab is electrically connected to one of the positive or negative terminals; one tab of the battery cell 4 in the second cavity is fixedly connected to one end of the conductive element 7 within the second cavity, such as by welding, to achieve electrical connection between the battery cell 4 and the conductive element 7 within the second cavity, and the other tab is electrically connected to the other of the positive or negative terminals.

[0055] The conductive component 7 enables electrical connection between the battery cells in the first cavity and the battery cells in the second cavity, such as through series connection, thereby enabling the battery to output the required voltage and improving the battery's capacity and energy density.

[0056] Furthermore, the other tab of the battery cell 4 in the first cavity and the other tab of the battery cell 4 in the second cavity are respectively electrically connected to the positive terminal and the negative terminal, so as to output electrical energy through the positive terminal and the negative terminal.

[0057] In other embodiments, the housing may include only the first outer shell 2 and the partition 2, or the second outer shell 3 and the partition 2, or the first outer shell 2 and the second outer shell 3, etc. The battery cell 4 may be one and only one. Users can choose to set it as needed, and no specific limitation is made here.

[0058] In one embodiment, the insulating components are provided in two and are respectively housed between the first housing 1 and the partition 2 and between the second housing 3 and the partition 2.

[0059] Preferably, an insulating component is provided between the first outer shell 1 and the partition 2, so that the battery cell between the first outer shell 1 and the partition 2 is housed in the support frame 6, so as to fix and insulate the battery cell and prevent the battery cell from contacting the first outer shell 1 or the partition 2.

[0060] More preferably, an insulating component is provided between the second housing 3 and the partition 2, and the battery cell between the second housing 3 and the partition 2 is housed in the support frame 6 so as to fix and insulate the battery cell and prevent the battery cell from contacting the second housing 3 and the partition 2.

[0061] In other embodiments, the insulating component may also be disposed only between the first housing 1 and the partition 2, or between the second housing 3 and the partition 2, etc. The user may choose to set it as needed, and no specific limitation is made here.

[0062] In one embodiment, the insulating element 5 is fixed between the conductive element 7 and the partition 2.

[0063] Preferably, the insulating component 5 is clamped and fixed between the conductive component 7 and the separator 2, or the insulating component 5 is injection molded or nano-injection molded between the conductive component 7 and the separator 2, so that the conductive component 7 and the separator 2 are insulated from each other, preventing the separator 2 from becoming charged due to contact between the conductive component 7 and the separator 2, which would affect the safety of the battery.

[0064] In other embodiments, the connection methods between the insulating element 5 and the conductive element 7 and the partition 2 can be selected and set as needed, and are not specifically limited here.

[0065] More preferably, the insulating member 5 is provided with a through hole, and the conductive member 7 passes through the through hole on the insulating member 5 to realize the electrical connection between the conductive member 7 and the electrode tab of the battery cell 4 and the fixed connection between the conductive member 7 and the insulating member 5.

[0066] In one embodiment, the support frame 6 includes a bracket 61 located at one end of the length direction of the battery cell 4, and the bracket 61 is snap-fitted to the insulating member 5.

[0067] Preferably, a bracket 61 is provided and located at one end of the length direction of the battery cell 4. The bracket 61 is located between the battery cell 4 and the insulating component 5, which facilitates the snap-fit ​​connection between the bracket 61 and the insulating component 5.

[0068] In other embodiments, multiple brackets 61 are provided and are respectively located at both ends of the length direction of the battery cell 4, which insulate the two ends of the battery cell 4 and cover the two end faces of the battery cell 4 in the length direction in order to achieve the function of fixing the battery cell 4.

[0069] More preferably, such as Figure 7 As shown, the slot 612 is provided on the surface of the bracket 61 facing the insulating member 5, and the hook 51 is fixed on the surface of the insulating member 5 facing the bracket 61. The bracket 61 and the insulating member 5 are snapped together by inserting the hook 51 into the slot 612; or, the hook is fixed on the surface of the bracket 61 facing the insulating member 5, and the slot is provided on the surface of the insulating member 5 facing the bracket 61. The bracket 61 and the insulating member 5 are snapped together by inserting the hook into the slot.

[0070] In one embodiment, the bracket 61 has a channel 613 through which the tab 41 of the battery cell 4 passes.

[0071] Preferably, the bracket 61 is located between the battery cell 4 and the insulating member 5. The bracket 61 is provided with a channel 613 that is adapted to the tab 41 of the battery cell 4, so that the tab 41 of the battery cell 4 passes through the channel 613 and is electrically connected to the conductive member 7 on the insulating member 5. The bracket 61 plays a role in positioning and fixing the tab 41.

[0072] More preferably, the bracket 61 includes two support rods 611 arranged in the thickness direction and fixedly connected, preferably by a snap-fit ​​connection, and a channel 613 is disposed between the two support rods 611, such as... Figure 2 , 3 As shown in Figure 7.

[0073] In one embodiment, the support frame 6 further includes a connecting plate 62, which is located at one end of the width direction of the battery cell 4, and the connecting plate 62 is snap-fitted to the bracket 61.

[0074] Preferably, the connecting plate 62 is flat and abuts against one side of the battery cell 4 in the width direction, thereby providing support and fixation for the side of the battery cell 4 in the width direction.

[0075] More preferably, one or more connecting plates 62 can be provided and located at both ends of the width direction of the battery cell 4, thereby providing comprehensive support and fixation for the end face of the battery cell 4 in the width direction.

[0076] Preferably, the connecting plate 62 extends along the length of the battery cell 4 to one end of the bracket 61, and the connecting plate 62 and the bracket 61 are snapped together to achieve a stable connection between the two.

[0077] Specifically, the connecting plate 62 is provided with a locking block, and the bracket 61 is provided with a locking hole. The locking block is inserted into the locking hole to achieve a stable connection between the connecting plate 62 and the bracket 61; or, the connecting plate 62 is provided with a locking hole, and the bracket 61 is provided with a locking block. The locking block is inserted into the locking hole to achieve a stable connection between the connecting plate 62 and the bracket 61.

[0078] In one embodiment, there are two brackets 61 located at both ends of the length direction of the battery cell 4, and two connecting plates 62 located at both ends of the width direction of the battery cell 4. The two connecting plates 62 and the two brackets 61 are staggered and arranged in a rectangular parallelepiped shape. The adjacent connecting plates 62 are snapped together with the brackets 61, thereby fixing the battery cell 4 securely inside and providing insulation between the battery cell 4 and the casing.

[0079] In one embodiment, the connecting plate 62 is fixedly connected to the battery cell 4.

[0080] Preferably, the battery cell 4 is provided with adhesive members 42. Multiple adhesive members 42 are arranged at intervals along the length of the battery cell 4. The adhesive members 42 are respectively bonded and fixed to the battery cell 4 and the connecting plate 62, thereby fixing the connecting plate 62 to the side of the battery cell 4 in the width direction, achieving a stable connection between the connecting plate 62 and the battery cell 4. Figure 7 As shown.

[0081] In other embodiments, the connecting plate 62 is bonded to the side of the battery cell 4, etc. The user can choose the connection method between the connecting plate 62 and the battery cell 4 as needed, and no specific limitation is made here.

[0082] In one embodiment, the present invention also provides a battery pack comprising the battery 100 described above.

[0083] Those skilled in the art will understand that although some embodiments described herein include some features of other embodiments, combinations of features from different embodiments are intended to be within the scope of this application and form different embodiments. For example, any of the claimed embodiments in the claims of this application can be used in any combination.

[0084] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A battery, characterized in that, The device includes a housing, a battery cell housed within the housing, and an insulating assembly. The insulating assembly includes a support frame housing the battery cell and an insulating member fixed within the housing. The support frame is fixedly connected to the insulating member, and the insulating member is fixedly connected to the inner surface of the housing. The housing includes a first outer shell, a partition, and a second outer shell. Two battery cells are provided and are respectively located between the first outer shell and the partition and between the second outer shell and the partition. The partition is provided with a conductive element, and the tabs of the two battery cells are respectively connected to the conductive element. The insulating component is fixed between the conductive component and the partition.

2. The battery according to claim 1, characterized in that, The support frame is snapped together with the insulating component.

3. The battery according to claim 2, characterized in that, The battery further includes a hook and a slot, the hook being connected to the slot, wherein the hook is fixed to the support frame, and the slot is disposed on the insulating component; or, The hook is fixed to the insulating component, and the slot is provided in the support frame.

4. The battery according to claim 1, characterized in that, Two insulating components are provided, one between the first outer shell and the other between the second outer shell and the third.

5. The battery according to any one of claims 1 to 4, characterized in that, The support frame includes a bracket located at one end of the length direction of the battery cell, and the bracket is snap-fitted to the insulating component.

6. The battery according to claim 5, characterized in that, The bracket has a channel through which the electrode of the battery cell passes.

7. The battery according to claim 6, characterized in that, The support frame also includes a connecting plate, which is located at one end of the width direction of the battery cell and is snapped together with the bracket.

8. The battery according to claim 7, characterized in that, The connecting plate is fixedly connected to the battery cell.

Citation Information

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