battery

Abstract

The utility model provides a kind of battery, battery includes shell, electric core group and insulating component, electric core group includes at least one electric core being arranged along the width direction of shell, electric core group and insulating component are set to inside of shell, insulating component includes first part and second part, first part and second part all include the bottom plate section and side plate section of bending arrangement, the side plate section of first part is set between one of the big face of electric core group along the width direction of shell and the inside surface of shell, the side plate section of second part is set between the other big face of electric core group and the inside surface of shell, the bottom plate section of first part and second part is stacked along the height direction of shell, and it is set between the bottom surface of electric core group and the bottom surface of shell.The insulating component of application adopts the structure setting of sectional type, can solve the problem that the structure of insulating component in the prior art and electric core assembly enter shell when there is prone to scratch between shell and the problem of not being conducive to cost control.

Description

Technical Field

[0001] This utility model relates to the field of battery-related technology, and more specifically, to a battery. Background Technology

[0002] Currently, battery cell insulation sheets typically employ a fully enclosed structure, meaning the insulation sheet covers both the bottom and sides of the cell. The insulation sheet is folded over the smallest surface area of ​​the cell to form a stacked portion, achieving full coverage for optimal insulation. While this insulation sheet design plays a crucial role in the early stages of battery manufacturing, during cell assembly, especially when the insulated cells (i.e., the cell assembly) are being loaded into the battery casing, the stacked portion of the insulation sheet is prone to deformation or warping as it enters the casing, causing scratch damage and potentially leading to insulation failure. Furthermore, the heat-fused connection between the insulation sheet and the base plate forms the insulation assembly. While this heat-fused connection enhances the stability of the insulation assembly, it also increases the battery's manufacturing cost and weight, negatively impacting its lightweight and economic viability.

[0003] Existing insulating components face two main challenges in practical applications: firstly, scratch damage caused by the warping of the insulating sheet during cell assembly reduces its insulation performance; secondly, while the thermoforming connection between the insulating sheet and the base plate improves the stability of the insulating component, it increases unnecessary manufacturing costs and battery weight, hindering battery lightweighting and cost control. These two problems not only limit the optimization of battery manufacturing processes but also negatively impact battery product quality and market competitiveness.

[0004] As can be seen from the above, the structure of the insulating components in the existing technology has the problems of easy scratching between the components and the housing after the battery cell is assembled and is not conducive to cost control. Utility Model Content

[0005] The main objective of this invention is to provide a battery that solves the problems of easy scratching between the insulating components and the casing when the battery cell is assembled and installed in the casing, as well as the disadvantages of cost control in the prior art.

[0006] To achieve the above objectives, according to one aspect of the present invention, a battery is provided. The battery includes a casing, a cell assembly, and an insulating component. The cell assembly includes at least one cell disposed along the width direction of the casing and is located inside the casing. The insulating component is located inside the casing and includes a first part and a second part. Both the first part and the second part include a bent bottom plate segment and a side plate segment. The side plate segment of the first part is disposed between one of the large surfaces of the cell assembly along the width direction of the casing and the inner surface of the casing. The side plate segment of the second part is disposed between the other large surface of the cell assembly and the inner surface of the casing. The bottom plate segments of the first part and the second part are stacked along the height direction of the casing and are disposed between the bottom surface of the cell assembly and the bottom surface of the casing.

[0007] Furthermore, the two bottom plate segments have the same extension length along the width direction of the shell; and / or the extension length of the bottom plate segment along the width direction of the shell is equal to or less than the distance between the two side plate segments, and greater than half of the distance between the two side plate segments.

[0008] Furthermore, the side plate section abuts between the inner side of the casing and the side of the battery cell assembly.

[0009] Furthermore, the two apex corners of the side plate segment of the first part and / or the side plate segment of the second part along the length direction of the shell are rounded.

[0010] Furthermore, the radius of the fillet should be 0.1mm ≤ R ≤ 20mm.

[0011] Furthermore, the thickness of the first part and / or the second part is 0.01 mm to 5 mm.

[0012] Furthermore, the casing has a top opening, and the battery also includes a top cover plate disposed on the top surface of the cell assembly and sealing the top opening.

[0013] Furthermore, along the length of the casing, the first part and the second part cooperate to form an installation space with openings on both sides. The battery also includes an adhesive tape disposed on the outer periphery of the installation space. The adhesive tape has connecting portions that connect to the side plate segments of the first part and the second part respectively. The adhesive tape also has covering portions for covering the openings on both sides of the installation space.

[0014] Furthermore, the tape is a ring-shaped structure fitted around the outer periphery of the installation space, and the tape has two shielding portions symmetrically arranged about the battery cell assembly; or the tapes are arranged in pairs, with the two tapes symmetrically arranged about the battery cell assembly along the length direction of the housing, each tape including a first section, a second section, and a third section arranged in sequence, the first section and the third section being symmetrically arranged on both sides of the second section along the width direction of the housing, the second section being bonded to the side of the battery cell assembly, the first section being bonded to the side plate section of the first part, the third section being bonded to the side plate section of the second part, the second section forming a shielding portion that shields one of the openings on both sides, and the first section and the third section forming a connecting portion.

[0015] Furthermore, the length of the overlapping portion of the tape and the side plate section is 0.1 to 1 times the length of the large surface of the battery cell; and / or the height of the tape along the height direction of the casing is not less than half the height of the battery cell; and / or the thickness of the tape is 0.01 mm to 5 mm.

[0016] According to the technical solution of this utility model, the battery includes a casing, a cell assembly, and an insulating component. The cell assembly includes at least one cell disposed along the width direction of the casing. The cell assembly and the insulating component are disposed inside the casing. The insulating component includes a first part and a second part. Both the first part and the second part include a bent bottom plate segment and a side plate segment. The side plate segment of the first part is disposed between one of the large surfaces of the cell assembly along the width direction of the casing and the inner surface of the casing. The side plate segment of the second part is disposed between the other large surface of the cell assembly and the inner surface of the casing. The bottom plate segments of the first part and the second part are stacked along the height direction of the casing and disposed between the bottom surface of the cell assembly and the bottom surface of the casing.

[0017] As can be seen from the above, the insulation assembly of the battery in this application adopts a segmented structure of a first part and a second part, which covers the large and bottom surfaces of the cell assembly. This avoids the formation of overlapping parts on the small side of the cell assembly, effectively preventing the insulation sheet from lifting and breaking during the assembly of the cell assembly and insulation assembly into the casing. This significantly improves the insulation performance between the cell and the casing, reduces the risk of short circuits, and enhances the safety and reliability of the battery. Simultaneously, by stacking the bottom plate segments of the first and second parts, the bottom support plate can be eliminated. The structural design of this application reduces the need for heat-sealing operations and simplifies the overall structure, which helps reduce the overall weight of the battery and lowers costs.

[0018] The first and second parts of the insulating assembly of this application both include a base plate segment and a side plate segment. When assembling with the cell assembly, it can be directly attached to the large and bottom surfaces of the cell assembly, which is simple to operate and helps to improve the assembly efficiency of the battery. The side plate segment provides insulation between the large surface of the cell assembly and the shell, and insulation between the bottom surface of the cell assembly and the bottom surface of the shell. The stacked structure of the two base plate segments further ensures the stability of the cell assembly inside the shell. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0020] Figure 1 A cross-sectional view of the battery provided in this application;

[0021] Figure 2 Exploded view of the battery mounting structure provided in this application;

[0022] Figure 3 This is a schematic diagram of the structure of the insulating component provided in this application;

[0023] Figure 4 This is a schematic diagram of the installation structure of the tape provided in this application.

[0024] The above figures include the following reference numerals:

[0025] 10. Housing; 20. Battery cell; 30. Insulation assembly; 301. Installation space; 310. First section; 320. Second section; 330. Side plate section; 340. Bottom plate section; 40. Top cover plate; 50. Adhesive tape; 510. First section; 520. Second section; 530. Third section. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0028] In this utility model, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0029] In order to solve the problems of easy scratching between the insulation components and the casing after the battery cell is assembled in the prior art, as well as the disadvantage of cost control, this application provides a battery.

[0030] The battery is a secondary battery.

[0031] In this embodiment, the battery is a square battery.

[0032] like Figures 1 to 4 As shown, the battery includes a casing 10, a cell assembly, and an insulation component 30. The cell assembly includes at least one cell 20 disposed along the width direction of the casing 10. When multiple cells 20 are provided, they are stacked along the width direction of the casing 10 to form a cell assembly. When only one cell 20 is provided, that single cell 20 constitutes the cell assembly. The cell assembly is disposed inside the casing 10. The insulation component 30 is disposed inside the casing 10. The insulation component 30 includes a first part 310 and a second part 320. The first part 310 and... The second part 320 includes a bent bottom plate section 340 and a side plate section 330. The side plate section 330 of the first part 310 is disposed between one of the large surfaces of the cell assembly along the width direction of the housing 10 and the inner surface of the housing 10. The side plate section 330 of the second part 320 is disposed between the other large surface of the cell assembly and the inner surface of the housing 10. The bottom plate section 340 of the first part 310 and the second part 320 are stacked along the height direction of the housing 10 and disposed between the bottom surface of the cell assembly and the bottom surface of the housing 10.

[0033] The housing 10 has a square structure and an opening on its top surface for mounting the battery cell assembly and insulation components 30. The length of the housing 10 is... Figure 2 As shown in the X direction, the width direction of the housing 10 is... Figure 2 As shown in the Y direction, the height direction of the shell 10 is... Figure 2 The Z direction is shown. The large surface of the cell assembly is the large surface (the side with the largest area) of cell 20 located at both ends of the stacking direction.

[0034] In this application, the housing 10 is a metal housing, such as an aluminum housing; the insulating component 30 is disposed between the cell 20 and the housing 10 to form an insulating arrangement between the cell 20 and the housing 10, so as to avoid short circuits and other phenomena, and to ensure the stability and safety of battery use.

[0035] The insulating component 30 of the battery in this application can be made of polycarbonate PC, polyethylene terephthalate PET, polyimide PI, polypropylene PP, etc.

[0036] In this embodiment, the insulating component 30 of the battery adopts a segmented structure of a first part 310 and a second part 320, which covers the large and bottom surfaces of the cell assembly. This avoids the formation of overlapping portions on the small surface of the cell assembly, effectively preventing the insulation sheet from warping and breaking during the assembly of the cell assembly and the insulating component 30 into the casing. This significantly improves the insulation performance between the cell 20 and the casing 10, reduces the risk of short circuits, and enhances the safety and reliability of the battery. Simultaneously, by stacking the bottom plate segment 340 of the first part 310 and the second part 320, the bottom support piece can be eliminated. The structure of this application eliminates the need for the prior art structure of heat-melting the bottom support piece onto the insulation sheet during assembly of the insulating component 30 and the cell assembly. This reduces heat-melting operations, simplifies the overall structure, reduces the overall weight of the battery, and lowers costs.

[0037] Specifically, the insulation component 30 of this application includes a first part 310 and a second part 320. The first part 310 and the second part 320 have the same structure, both including a bottom plate section 340 and a side plate section 330. The bottom plate section 340 and the side plate section 330 are arranged vertically to match the large surface and bottom surface of the battery cell assembly, respectively, to ensure electrical isolation between the battery cell assembly and the housing 10. At the same time, the cooperation between the bottom plate section 340 and the side plate section 330 forms a stable insulation structure, effectively preventing the battery cell 20 from contacting the housing 10 during assembly, thereby avoiding the risk of short circuit.

[0038] When assembling the insulating assembly 30 with the battery cell 20, the two side plate segments 330 are attached to the two large surfaces of the battery cell assembly, and the bottom plate segment 340 is stacked and attached to the bottom surface of the battery cell assembly. This operation is simple and helps to improve the assembly efficiency of the battery. The large surface is the larger surface among the multiple outer surfaces of the battery cell 20. The two bottom plate segments 340 are stacked on the bottom surface of the battery cell assembly. The first part 310 and the second part 320 cover the battery cell assembly to achieve insulation between the battery cell assembly and the housing 10. The side plate segments 330 achieve insulation between the large surface of the battery cell assembly and the housing 10, and insulation between the bottom surface of the battery cell assembly and the bottom surface of the housing 10. The structure of the two stacked bottom plate segments 340 further ensures the stability of the battery cell assembly inside the housing 10.

[0039] In this embodiment, the two side plate segments 330 of the first part 310 and the second part 320 are symmetrically arranged on both sides of the cell assembly along the width direction of the housing 10, so that the side plate segments 330 corresponding to the two large surfaces of the cell assembly form the same insulation. The structure of the side plate segment 330 is approximately the same as the shape of the large surface of the cell assembly, and the size of the side plate segment 330 is not smaller than the size of the large surface of the cell assembly, so as to ensure that the large surface of the cell assembly is completely insulated from the housing 10, which is beneficial to ensuring the stability of the overall structure and the safety of battery use.

[0040] The side plate segment 330 is configured such that it abuts against the inner side of the housing 10 and the large surface of the battery cell assembly. The side plate segment 330 is clamped by the abutment between the large surface of the battery cell assembly and the inner side of the housing 10, and the side plate segment 330 is fixed by bidirectional pressure. Alternatively, a clamp or other structural component can be provided between the side plate segment 330 and the inner side of the housing 10, depending on whether it can clamp and position the side plate segment 330.

[0041] The first part 310 and the second part 320 have the same thickness, and the thickness of the first part 310 and the second part 320 is between 0.01mm and 5mm. The thickness of the first part 310 and the second part 320 can be adapted to the actual product settings. The thickness of the first part 310 and the second part 320 in this application refers to the thickness of the side plate section 330 and the bottom plate section 340, and the thickness of the side plate section 330 and the bottom plate section 340 is the same, which is beneficial to facilitate the processing of the insulating component 30 and improve production efficiency.

[0042] like Figure 3 As shown, at least one of the side plate segments 330 of the first part 310 and the side plate segments 330 of the second part 320 has two apex corners formed as rounded corners along the length direction of the housing 10.

[0043] The use of rounded corners at the top corners avoids interference during installation. The rounded corners also allow for easier installation inside the housing 10 and subsequent installation of the top cover 40. In particular, it reduces friction and collision between the side plate section 330 and the top corner of the housing 10 during assembly, preventing wear and damage to the insulating material. This improves the lifespan and reliability of the insulating assembly 30, and ensures the stability of the insulating assembly 30.

[0044] Specifically, this application may have a structure in which only the top corner of one of the side plate segments 330 of the first part 310 and the second part 320 is rounded, or both side plate segments 330 may have their top corners rounded.

[0045] In this embodiment, the radius R of the fillet conforms to 0.1mm≤R≤20mm, and the radius setting can be adaptively set as needed.

[0046] like Figures 1 to 3 As shown, the two base plate segments 340 of the first part 310 and the second part 320 have the same extension length along the width direction of the housing 10, wherein at least a portion of the two base plate segments 340 are overlapped to ensure separation of the bottom surface of the battery pack from the housing 10.

[0047] The principle of this design is to ensure the stability and fit of the insulation component 30 within the housing 10 by controlling the dimensions of the base plate segment 340, thereby avoiding problems such as poor insulation or structural instability caused by the base plate segment 340 being too long or too short.

[0048] Specifically, the extension length of the bottom plate segment 340 along the width direction of the housing 10 can be equal to or less than the distance between the two side plate segments 330, and greater than half the distance between the two side plate segments 330, so as to ensure that the two bottom plate segments 340 cooperate to form an insulating layer between the bottom surface of the battery cell assembly and the housing 10.

[0049] When the extension length of the bottom plate segment 340 along the width direction of the housing 10 is equal to the distance between the two side plate segments 330, the two bottom plate segments 340 are completely stacked, that is, the projection areas of the two bottom plate segments 340 on the bottom surface of the housing 10 completely overlap. At this time, the structure of the two bottom plate segments 340 stacked together helps to increase the insulation between the cell assembly and the housing 10, and when one of the bottom plate segments 340 is damaged, it will not affect the insulation effect of the structure, ensuring the stability and safety of battery use.

[0050] When the extension length of the bottom plate segment 340 along the width direction of the housing 10 is less than the distance between the two side plate segments 330, the two bottom plate segments 340 are only partially stacked. The two bottom plate segments 340 need to cooperate to form insulation between the bottom surface of the cell assembly and the housing 10. This arrangement does not require a single bottom plate segment 340 to completely cover the bottom surface of the cell 20, which can reduce the length of the bottom plate segment 340, thereby helping to reduce costs and the overall weight of the battery.

[0051] like Figures 1 to 3 As shown, along the length of the housing 10, the first part 310 and the second part 320 cooperate to form an installation space 301 with openings on both sides for accommodating the battery cell assembly. The installation space 301 with openings on both sides can be understood as an installation channel for inserting the battery cell assembly, so that the insulation component 30 can wrap the battery cell assembly.

[0052] In this embodiment, as Figure 2 and Figure 4 As shown, the battery also includes tape 50, which is disposed on the outer periphery of the mounting space 301. Tape 50 has a connecting portion that is connected to the side plate segments 330 of the first portion 310 and the second portion 320 respectively. Tape 50 also has a covering portion for covering the openings on both sides of the mounting space 301.

[0053] The connecting part is bonded to the side plate section 330 of the first part 310 and the second part 320, and the shielding part shields the opening of the installation space 301. The tape 50 fills the opening area on both sides of the insulating component 30 and forms a complete insulating layer with the insulating component 30, which increases the electrical safety factor inside the battery.

[0054] Specifically, the connecting portion has an adhesive area formed by bonding with the side plate segment 330 of the first portion 310 and an adhesive area formed by bonding with the side plate segment 330 of the second portion 320. The portion of the tape 50 located between the two connecting areas forms a shielding portion to shield the opening of the mounting space 301, that is, the openings at both ends of the mounting channel in the length direction of the housing 10. By shielding the two openings of the mounting space 301, the tape 50 of this application achieves an insulating setting between the two sides of the cell assembly along the length direction of the housing 10 and the housing 10, which is beneficial to ensuring the integrity of the battery use.

[0055] Meanwhile, the tape 50 is wrapped around the side plate section 330 of the first part 310 and the side plate section 330 of the second part 320 as well as the outer periphery of the battery cell assembly, which also realizes the fixed connection between the two separate side plate sections 330 through the tape 50, thereby improving the stability of the overall structure.

[0056] In one specific embodiment of this example, the tape 50 is an annular structure that is sleeved on the outer periphery of the installation space 301, and the tape 50 has two shielding portions that are symmetrically arranged with respect to the battery cell assembly.

[0057] The tape 50 with an annular structure is bonded to the side plate section 330 of the first part 310 and the second part 320 to form a connection part. The tape 50 has two shielding parts to shield the openings on both sides of the installation space 301.

[0058] In this embodiment, the tape 50 is set to one or more. When there are multiple tapes 50, the multiple tapes 50 can be arranged along the height direction of the housing 10 or arranged sequentially along the circumference of the battery cell assembly.

[0059] In another specific embodiment of this example, the tapes 50 are arranged in pairs. The two tapes 50 arranged in pairs are symmetrical about the battery cell assembly along the length direction of the housing 10. The two tapes arranged in pairs each form a shielding portion, and the two tapes 50 arranged in pairs shield the openings on both sides of the installation space 301.

[0060] Specifically, each tape 50 has an adhesive portion that is bonded to the first part 310 and the second part 320. Under the action of the tape 50, the two tapes 50 and the two side plate segments 330 form a structural sleeve that is fitted around the outer periphery of the battery cell assembly, thereby forming a wrapping around the battery cell assembly to ensure that the battery cell assembly is insulated from the housing 10.

[0061] The two tapes 50 correspond to the openings on both sides of the installation space 301, so that the two tapes 50 can cover the two openings.

[0062] In this embodiment, each tape 50 includes a first section 510, a second section 520, and a third section 530 arranged in sequence. The first section 510 and the third section 530 are symmetrically arranged on both sides of the second section 520 along the width direction of the housing 10. The second section 520 is bonded to the side of the battery cell assembly. The first section 510 is bonded to the side plate section 330 of the first part 310, and the third section 530 is bonded to the side plate section 330 of the second part 320. The second section 520 is formed as a blocking part that blocks one of the openings on both sides. The first section 510 and the third section 530 are formed as a connecting part.

[0063] The first segment 510 and the second segment 520 are arranged vertically, and the second segment 520 and the third segment 530 are arranged vertically. The first segment, the second segment 520 and the third segment 530 are arranged along the circumference of the housing 10. The length of the overlapping portion of the tape 50 and each side plate segment 330 is 0.1 to 1 times the length of the large surface of the cell 20, thereby ensuring the bonding strength between the tape 50 and the side plate segment 330.

[0064] The circumferential direction of the housing 10 is the direction in which the two sides in the length direction of the housing 10 and the two sides in the width direction of the housing 10 are connected end to end in sequence.

[0065] Along the height direction of the housing 10, the height of the tape 50 is not less than half the height of the battery cell 20, thereby ensuring that the battery cell assembly and the housing 10 form a corresponding insulation setting and improving the safety of use.

[0066] In this embodiment, the thickness of the tape 50 is 0.01mm to 5mm, and the material of the tape 50 can be polyethylene terephthalate (PET), polyimide (PI), polypropylene (PP), etc., to ensure that it has good insulation effect.

[0067] like Figure 1 and Figure 2 As shown, the housing 10 has a top opening, and the battery also includes a top cover plate 40, which is disposed on the top surface of the cell assembly and seals the top opening.

[0068] The top cover plate 40 is disposed at the opening on the top surface of the housing 10 and cooperates with the housing 10 to form a receiving cavity. The battery cell assembly, the insulation component 30, and the tape 50 are disposed inside the receiving cavity. The top cover plate 40 and the housing 10 cooperate to form a protective structure for the battery cell assembly, the insulation component 30, and the tape 50.

[0069] In this embodiment, the positive and negative tabs on the multiple battery cells 20 and the positive and negative terminals on the top cover plate 40 are respectively corresponding and electrically connected. The electrical connection between the tabs and the terminals can be a direct connection or an indirect connection through an adapter piece.

[0070] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0071] The battery insulation component 30 of this application adopts a segmented structure of a first part 310 and a second part 320, which covers the large and bottom surfaces of the cell assembly, avoiding the formation of overlapping parts on the small surface of the cell assembly. This effectively prevents the insulation sheet from warping and breaking during the assembly of the cell assembly and the insulation component 30 into the casing, significantly improving the insulation performance between the cell 20 and the casing 10, reducing the risk of short circuits, and enhancing the safety and reliability of the battery. Simultaneously, by stacking the bottom plate segment 340 of the first part 310 and the second part 320, the bottom support plate can be eliminated. The structure of this application eliminates the need for the existing structure of heat-melting the bottom support plate onto the insulation sheet during assembly of the insulation component 30 and the cell assembly. This reduces heat-melting operations, simplifies the overall structure, helps reduce the overall weight of the battery, and lowers costs.

[0072] The first part 310 and the second part 320 of the insulating assembly 30 of this application both include a base plate section 340 and a side plate section 330. When assembling with the battery cell 20, they can be directly attached to the large surface and bottom surface of the battery cell assembly, which is simple to operate and helps to improve the assembly efficiency of the battery. The side plate section 330 realizes the insulation between the large surface of the battery cell assembly and the housing 10, and the bottom surface of the battery cell assembly is insulated from the bottom surface of the housing 10. The structure of the two stacked base plate sections 340 further ensures the stability of the battery cell assembly inside the housing 10.

[0073] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0074] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0075] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0076] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A battery, characterized in that, include: Shell (10); A battery cell assembly, the battery cell assembly comprising at least one battery cell (20) disposed along the width direction of the housing (10), the battery cell assembly being disposed inside the housing (10); An insulating component (30) is disposed inside the housing (10). The insulating component (30) includes a first part (310) and a second part (320). Both the first part (310) and the second part (320) include a bent bottom plate segment (340) and a side plate segment (330). The side plate segment (330) of the first part (310) is disposed between one of the large surfaces of the battery cell assembly along the width direction of the housing (10) and the inner surface of the housing (10). The side plate segment (330) of the second part (320) is disposed between the other large surface of the battery cell assembly and the inner surface of the housing (10). The bottom plate segments (340) of the first part (310) and the second part (320) are stacked along the height direction of the housing (10) and disposed between the bottom surface of the battery cell assembly and the bottom surface of the housing (10).

2. The battery according to claim 1, characterized in that, The two base plate segments (340) have the same length of extension along the width direction of the housing (10); and / or The length of the bottom plate segment (340) extending along the width direction of the housing (10) is equal to or less than the distance between the two side plate segments (330), and greater than half the distance between the two side plate segments (330).

3. The battery according to claim 1, characterized in that, The side plate segment (330) abuts between the inner side of the housing (10) and the side of the battery cell assembly.

4. The battery according to claim 1, characterized in that, The two apex corners of the side plate segment (330) of the first part (310) and / or the side plate segment (330) of the second part (320) along the length direction of the housing (10) are rounded.

5. The battery according to claim 4, characterized in that, The radius R of the fillet must be 0.1mm ≤ R ≤ 20mm.

6. The battery according to claim 1, characterized in that, The thickness of the first part (310) and / or the second part (320) is 0.01 mm to 5 mm.

7. The battery according to claim 1, characterized in that, The housing (10) has a top opening, and the battery also includes a top cover plate (40), which is disposed on the top surface of the battery cell assembly and blocks the top opening.

8. The battery according to any one of claims 1 to 7, characterized in that, Along the length of the housing (10), the first portion (310) and the second portion (320) cooperate to form a mounting space (301) with openings on both sides. The battery also includes: Adhesive tape (50) is disposed on the outer periphery of the mounting space (301). The adhesive tape (50) has connecting portions that are respectively connected to the side plate segments (330) of the first part (310) and the second part (320). The adhesive tape (50) also has covering portions for covering the openings on both sides of the mounting space (301).

9. The battery according to claim 8, characterized in that, The tape (50) is an annular structure fitted around the outer periphery of the mounting space (301), and the tape (50) has two shielding portions symmetrically arranged with respect to the battery cell assembly; or The tapes (50) are arranged in pairs, and the two tapes (50) arranged in pairs are symmetrical about the battery cell assembly along the length direction of the housing (10). Each tape (50) includes a first section (510), a second section (520) and a third section (530) arranged in sequence. The first section (510) and the third section (530) are symmetrically arranged on both sides of the second section (520) along the width direction of the housing (10). The second section (520) is bonded to the side of the battery cell assembly. The first section (510) is bonded to the side plate section (330) of the first part (310). The third section (530) is bonded to the side plate section (330) of the second part (320). The second section (520) is formed as the blocking part that blocks one of the openings on both sides. The first section (510) and the third section (530) are formed as the connecting part.

10. The battery according to claim 8, characterized in that, The length of the overlap between the tape (50) and each of the side plate segments (330) is 0.1 to 1 times the length of the large surface of the battery cell (20); and / or Along the height direction of the housing (10), the height of the tape (50) is not less than half the height of the battery cell (20); and / or The thickness of the tape (50) is 0.01mm to 5mm.

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