Insulation module of battery monomer, battery monomer, battery pack and electric equipment

Abstract

The utility model discloses an insulation module of a battery monomer, the battery monomer, a battery pack and electric equipment, the insulation module of the battery monomer comprises an insulation protection piece, the insulation protection piece is suitable for being installed on a shell of the battery monomer, the insulation protection piece is provided with a first concave cavity, the bottom wall of the first concave cavity is provided with a first matching through groove, and the first matching through groove is matched with the first concave cavity; the first matching through groove is suitable for enabling the first pole lug of the battery monomer to extend into the first concave cavity so as to be electrically connected with the pole column of the battery monomer; and at least part of the insulation assembly is arranged in the first concave cavity, and the insulation assembly is used for insulating and separating the pole and the shell. According to the battery monomer disclosed by the embodiment of the utility model, the first concave cavity is formed in the insulating protection piece, and at least part of the insulating component is arranged in the first concave cavity, so that the utilization rate of space is improved, more space is conveniently reserved for the pole core component of the battery monomer, and the capacity of the battery monomer is conveniently increased.

Description

Technical Field

[0001] This utility model relates to the field of battery cell technology, specifically to an insulating module for a battery cell, a battery cell, a battery pack, and electrical equipment. Background Technology

[0002] In related technologies, battery cells need to have an insulator between one of the tabs and the casing to prevent short circuits, but the insulator occupies a large amount of space inside the battery cell. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an insulation module for a battery cell. This insulation module improves space utilization by setting a first cavity in the insulation protection component and placing at least a portion of the insulation component within the first cavity. This, in turn, facilitates reserving more space for the battery cell's core assembly, thereby increasing the battery cell's capacity.

[0004] This utility model also proposes a battery cell having the aforementioned insulating module.

[0005] This utility model also proposes a battery pack having the aforementioned battery cells.

[0006] This utility model also proposes an electrical device having the aforementioned battery pack.

[0007] An insulating module for a battery cell according to a first aspect embodiment of the present invention includes an insulating protective member adapted to be installed in the housing, the insulating protective member having a first recess, a first mating groove provided on the bottom wall of the first recess, the first mating groove being adapted to allow a first electrode tab to extend into the first recess for electrical connection with the terminal post of the battery cell; and an insulating assembly, at least a portion of which is disposed in the first recess, the insulating assembly being used to provide an insulating gap between the terminal post and the housing.

[0008] According to the embodiments of the present invention, the insulation module of the battery cell provides a first recess in the insulation protection component, and at least part of the insulation component is disposed in the first recess to improve the utilization of space, thereby making it easier to reserve more space for the core assembly of the battery cell and to increase the capacity of the battery cell.

[0009] In addition, the insulation module of the battery cell according to the above embodiments of the present invention may also have the following additional technical features:

[0010] According to some embodiments of the present invention, the insulating protective member includes a first partition and a second partition, the first partition and the second partition together defining the bottom wall of the first cavity, and the first partition and the second partition are spaced apart in a first direction to define the first mating through groove.

[0011] According to some optional embodiments of the present invention, in the first direction, the size of the first partition is smaller than the size of the second partition.

[0012] According to some alternative embodiments of the present invention, at least one of the first partition and the second partition is configured to be inclined toward the first cavity.

[0013] According to some optional embodiments of the present invention, the angle between the first partition and / or the second partition and the first direction is between 0° and 20°.

[0014] According to some embodiments of the present invention, the insulating protective member further has a second cavity, and a second mating groove is provided on the bottom wall of the second cavity. The second mating groove is adapted to allow the second tab of the battery cell to pass through for electrical connection with the housing.

[0015] According to some optional embodiments of the present invention, the shape of the first cavity is the same as the shape of the second cavity.

[0016] According to a second aspect of the present invention, a battery cell is provided, the battery cell comprising: a housing and a terminal post, the terminal post being disposed in the housing; a core assembly, the core assembly being disposed within the housing, the core assembly having a first tab; and an insulating module according to a first aspect of the present invention, the insulating protective member being disposed within the housing and located between the end of the core assembly and the housing.

[0017] According to the embodiments of the present invention, the battery cell utilizes the insulation module described in the first aspect of the present invention. By providing a first cavity in the insulation protection member, at least a portion of the insulation component is disposed in the first cavity, thereby improving the utilization rate of space and facilitating the provision of more space for the core assembly of the battery cell, thus facilitating the increase of the battery cell capacity.

[0018] According to some embodiments of the present invention, the battery cell further includes a conductive sheet disposed in the first recess, and the conductive sheet is used to electrically connect the terminal post and the first tab.

[0019] According to some alternative embodiments of the present invention, at least a portion of the insulating component is located between the conductive sheet and the housing.

[0020] According to some specific embodiments of the present invention, the insulating component includes an insulating sleeve and an insulating element. The insulating sleeve is sleeved on the pole and located between the pole and the housing. The insulating element is located in the first cavity and located between the conductive sheet and the housing.

[0021] In some embodiments, the insulating member has a protruding blocking block that protrudes toward the core assembly, and the blocking block and the insulating member define a receiving groove for receiving the conductive sheet.

[0022] According to some embodiments of the present invention, the housing is provided with a liquid injection hole, the insulating protective component is provided with a through hole, the through hole is disposed opposite to the liquid injection hole, and the battery cell further includes a sealing component, the sealing component being adapted to seal the liquid injection hole.

[0023] According to some optional embodiments of the present invention, the through hole is provided with a blocking element having a hollowed-out area.

[0024] A battery pack is provided according to a third aspect of the present invention, the battery pack comprising: a housing; and a plurality of battery cells as described in a second aspect of the present invention, wherein the plurality of battery cells are disposed within the housing.

[0025] According to the battery pack of the present invention, by utilizing the battery cell described in the second aspect of the present invention, at least a portion of the insulating component is disposed in the first recess in the insulating protective member, thereby improving the utilization rate of space and making it easier to reserve more space for the core assembly of the battery cell, thus facilitating the increase of the capacity of the battery cell.

[0026] According to a fourth aspect of the present invention, an electrical device is provided, the electrical device comprising a battery pack as described in an embodiment of a third aspect of the present invention.

[0027] According to the embodiments of the present invention, the electrical equipment utilizes the battery pack described in the third aspect of the present invention. By providing a first cavity in the insulating protective member, at least a portion of the insulating component is disposed in the first cavity, thereby improving the utilization rate of space and facilitating the provision of more space for the core assembly of the battery cell, thus facilitating the increase of the capacity of the battery cell.

[0028] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0029] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0030] Figure 1 This is a schematic diagram of the structure of a battery cell according to an embodiment of the present utility model;

[0031] Figure 2 This is a partial structural schematic diagram of a battery cell according to an embodiment of the present utility model;

[0032] Figure 3 This is a top view of a battery cell according to an embodiment of the present utility model;

[0033] Figure 4 yes Figure 3 A cross-sectional view at point AA, where the first and second partitions extend in the same direction;

[0034] Figure 5 yes Figure 4 Enlarged view of the central area;

[0035] Figure 6 yes Figure 3 An enlarged view of a portion of the cross-sectional view at point AA, where the second partition extends inclined toward the first cavity;

[0036] Figure 7 yes Figure 3 Enlarged view of a portion of the cross-sectional view at point BB;

[0037] Figure 8 This is a cross-sectional view of a battery cell according to an embodiment of the present utility model;

[0038] Figure 9 yes Figure 8 Enlarged view of the central area;

[0039] Figure 10 This is a structural schematic diagram of the insulating protective component according to an embodiment of the present utility model;

[0040] Figure 11 This is a side view of the insulating protective component according to an embodiment of the present utility model;

[0041] Figure 12 This is a cross-sectional view of the insulating protective component according to an embodiment of the present utility model.

[0042] Reference numerals: 1. Battery cell; 10. Housing; 11. Frame; 12. First sidewall;

[0043] 20. Pole post;

[0044] 30. Core assembly; 31. First electrode tab; 32. Second electrode tab;

[0045] 40. Insulating protective component; 41. First cavity; 411. First mating through groove; 42. Second cavity; 421. Second mating through groove; 45. First partition; 46. Second partition; 47. Through hole; 48. Third partition; 49. Fourth partition;

[0046] 50. Insulating component; 51. Insulating sleeve; 52. Insulating part; 53. Blocking block;

[0047] 60. Conductive sheet; 70. Sealing component. Detailed Implementation

[0048] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0049] The insulating module of a battery cell according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0050] like Figures 1-7 As shown, the insulation module according to an embodiment of the present invention includes an insulation protection element 40 and an insulation component 50.

[0051] The insulating protective component 40 is suitable for installation on the housing 10. The insulating protective component 40 has a first cavity 41. The bottom wall of the first cavity 41 is provided with a first mating groove 411. The first mating groove 411 is suitable for allowing the first tab 31 of the battery cell 1 to extend into the first cavity 41 to be electrically connected with the terminal post 20, so that the battery cell 1 can output current to the outside through the terminal post 20.

[0052] Specifically, the first electrode tab 31 is inserted into the first cavity 41 so that the insulating protective member 40 can separate the first electrode tab 31 from the housing 10, thereby preventing the first electrode tab 31 from being electrically connected to the housing 10 and thus preventing a short circuit.

[0053] At least a portion of the insulating component 50 is disposed within the first cavity 41. The insulating component 50 is used to provide an insulating gap between the pole 20 and the housing 10 to prevent the pole 20 from being electrically connected to the housing 10, thereby preventing a short circuit.

[0054] Specifically, the insulating protective element 40 defines the first cavity 41, and the insulating component 50 is disposed in the first cavity 41. This facilitates the use of the space in the first cavity 41, thereby facilitating the full utilization of the space inside the housing 10 of the battery cell 1, improving the utilization rate of the space inside the housing 10, and thus facilitating the reservation of more space for the core assembly 30, which in turn facilitates increasing the capacity of the battery cell 1.

[0055] Therefore, in the battery cell insulation module according to the present utility model embodiment, by providing a first cavity 41 in the insulation protection member 40, at least a portion of the insulation component 50 is disposed in the first cavity 41, so as to improve the utilization rate of space, thereby making it easier to reserve more space for the electrode core component 30 of the battery cell 1, and making it easier to increase the capacity of the battery cell 1.

[0056] The insulating module of a battery cell according to a specific embodiment of the present invention is described below with reference to the accompanying drawings.

[0057] In some specific embodiments of this utility model, such as Figures 1-7 As shown, the insulation module of the battery cell includes an insulation protection component 40 and an insulation assembly 50.

[0058] In some embodiments of this utility model, such as Figure 5 , Figure 6 As shown, the insulating protective member 40 includes a first partition 45 and a second partition 46. The first partition 45 and the second partition 46 together define the bottom wall of the first cavity 41. The first partition 45 and the second partition 46 are spaced apart in a first direction to define a first mating groove 411. The first electrode 31 is adapted to pass through the first mating groove 411 and enter the first cavity 41 to be electrically connected to the electrode post 20.

[0059] The first electrode tab 31 passes through the first mating groove 411, which allows the position of the root of the first electrode tab 31 to be defined by the first mating groove 411, thereby reducing the shaking of the first electrode tab 31 and improving the stability of the electrical connection between the first electrode tab 31 and the electrode post 20.

[0060] In some embodiments, in the first direction, the size of the first mating groove 411 is 0.1 mm larger than the thickness of the first electrode 31 in the first direction, so as to avoid damaging the first electrode 31 and facilitate the first electrode 31 to pass through the first mating groove 411.

[0061] In some embodiments, such as Figure 10 As shown, the length of the first cavity 41 extends along the second direction, which is perpendicular to the first direction. The first mating groove 411 is 2mm larger in the second direction than the length of the first tab 31 in the second direction, so as to facilitate the first tab 31 passing through the first mating groove 411. At the same time, the gas generated in the battery cell 1 can be easily discharged through the first mating groove 411.

[0062] In some examples, the first direction is the width direction of the housing 10, the second direction is the length direction of the housing 10, and the first direction, the second direction, and the height direction of the housing 10 are perpendicular to each other.

[0063] In some optional embodiments of this utility model, such as Figure 5As shown, in the first direction, the size of the first partition 45 is smaller than that of the second partition 46, so as to facilitate the bending of the first electrode 31 within the first cavity 41 for electrical connection with the electrode post 20.

[0064] Specifically, in the first direction, the first mating groove 411 is offset from the middle of the first cavity 41. This allows for a larger space to be reserved in the first cavity 41 for bending of the first electrode 31 after the first electrode 31 passes through the first mating groove 411. This facilitates bending of the first electrode 31 in the first cavity 41, so that at least a portion of the first electrode 31 can be limited by the first cavity 41.

[0065] In some optional embodiments of this utility model, such as Figure 5 As shown, at least one of the first partition 45 and the second partition 46 is configured to be inclined toward the first cavity 41, which facilitates the formation of a larger first mating groove 411, thereby making it easier for the first tab 31 to pass through the first mating groove 411 and enter the first cavity 41.

[0066] Meanwhile, the inclined first partition 45 and / or second partition 46 can limit and protect the position of the first tab 31, adapt to the extension direction of the first tab 31 from the core assembly 30 to the first cavity 41, avoid direct contact between the first tab 31 and the housing 10 due to shaking, thereby avoiding short circuit and improving the safety of the battery cell 1.

[0067] In some embodiments, the size of the first partition 45 in the first direction is smaller than the size of the second partition 46 in the first direction, the first partition 45 extends obliquely toward the first cavity 41, and the second partition 46 extends along the first direction.

[0068] The first partition 45 is inclined to extend into the first cavity 41 to limit and protect the position of the first tab 31. The first tab 45 is adapted to the extension direction of the first tab 31 from the core assembly 30 into the first cavity 41, so as to avoid direct contact between the first tab 31 and the housing 10 due to shaking, thereby avoiding short circuit and improving the safety of the battery cell 1.

[0069] The second partition 46 extends along the first direction to reduce the space occupied by the second partition 46 in the first cavity 41, thereby making it easier to reserve enough space for the bending of the first electrode 31.

[0070] In some examples, the angle between the first partition 45 and the first direction is between 0° and 20°.

[0071] If the angle between the first partition 45 and the first direction is too large, the first partition 45 will occupy too much space in the first cavity 41; if the angle between the first partition 45 and the first direction is too small, it will be difficult for the first electrode 31 to pass through the first mating groove 411 and enter the first cavity 41. Therefore, the angle between the first partition 45 and the first direction is made between 0° and 20°, so as to reserve space for the bending of the first electrode 31 while ensuring that the first electrode 31 can pass smoothly through the first mating groove 411 and enter the first cavity 41.

[0072] Specifically, the angle between the first partition 45 and the first direction can be 5°, 10°, 15° and 20°, without much restriction here.

[0073] In other embodiments, the first partition 45 is smaller in size in the first direction than the second partition 46 in the first direction, the second partition 46 extends obliquely toward the first cavity 41, and the first partition 45 extends along the first direction.

[0074] The second partition 46 is inclined to extend into the first cavity 41 to limit and protect the position of the first tab 31. It adapts to the extension direction of the first tab 31 from the core assembly 30 into the first cavity 41, avoiding direct contact between the first tab 31 and the housing 10 due to shaking, thereby avoiding short circuit and improving the safety of the battery cell 1.

[0075] The first partition 45 is extended along the first direction to reduce the space occupied by the first partition 45 in the first cavity 41, thereby making it easier to reserve enough space for the bending of the first electrode 31.

[0076] In some examples, the angle between the second partition 46 and the first direction is between 0° and 20°.

[0077] If the angle between the second partition 46 and the first direction is too large, the second partition 46 will occupy too much space in the first cavity 41; if the angle between the second partition 46 and the first direction is too small, it will be difficult for the first electrode 31 to pass through the first mating groove 411 and enter the first cavity 41. Therefore, the angle between the second partition 46 and the first direction is made between 0° and 20°, so as to reserve space for the bending of the first electrode 31 while ensuring that the first electrode 31 can smoothly pass through the first mating groove 411 and enter the first cavity 41.

[0078] Specifically, the angle between the second partition 46 and the first direction can be 5°, 10°, 15° and 20°, without much restriction here.

[0079] In some other optional embodiments of this utility model, such as Figure 6As shown, the first partition 45 and the second partition 46 both extend along the first direction to reduce the space occupied by the first partition 45 and the second partition 46 in the first cavity 41, thereby reserving more space for the first electrode 31, so that the first electrode 31 can be bent in the first cavity 41.

[0080] In some embodiments of this utility model, such as Figure 7 , Figure 10 As shown, the insulating protective component 40 also has a second cavity 42, and a second mating groove 421 is provided on the bottom wall of the second cavity 42. The second mating groove 421 is adapted to allow the second tab 32 of the battery cell to pass through so as to be electrically connected to the housing 10.

[0081] The second mating groove 421 is adapted to limit the position of the root of the second electrode 32, thereby reducing the sway amplitude of the second electrode 32 and improving the stability of the electrical connection between the second electrode 32 and the housing 10.

[0082] In some embodiments, the second tab 32 is electrically connected to the housing 10 by welding. After passing through the second mating groove 421, the second tab 32 is electrically connected to the housing 10. The second mating groove 421 can limit the shaking of the second tab 32, thereby ensuring the stability of the electrical connection between the second tab 32 and the housing 10.

[0083] In some embodiments, the first tab 31 is the positive tab of the core assembly 30, and the second tab 32 is the negative tab of the core assembly 30.

[0084] In some optional embodiments of this utility model, such as Figure 7 As shown, the insulating protective member 40 includes a third partition 48 and a fourth partition 49, which are spaced apart in a first direction to define a second mating through groove 421.

[0085] In the first direction (it should be understood that the above direction is only for the convenience of describing the drawings and does not limit the actual setting position and direction of the battery cell 1), the size of the third separator 48 is smaller than the size of the fourth separator 49. That is to say, in the first direction, the second mating groove 421 is offset from the middle of the second cavity 42. In this way, after the second tab 32 passes through the second mating groove 421, it is easier to reserve a larger space for the bending of the second tab 32 in the second cavity 42, so that the second tab 32 can be bent in the second cavity 42 and electrically connected to the housing 10.

[0086] In some embodiments, in the first direction, the size of the second mating groove 421 is 0.1 mm larger than the thickness of the second tab 32 in the first direction, so as to avoid damaging the second tab 32 and facilitate the second tab 32 to pass through the second mating groove 421.

[0087] In some embodiments, such as Figure 10 As shown, the length of the second cavity 42 extends along the second direction, which is perpendicular to the first direction. The second mating groove 421 is 2 mm larger in the second direction than the length of the second tab 32 in the second direction, so as to facilitate the second tab 32 passing through the second mating groove 421. At the same time, the gas generated in the battery cell 1 can be easily discharged through the second mating groove 421.

[0088] In some examples, the first direction is the width direction of the housing 10, the second direction is the length direction of the housing 10, and the first direction, the second direction, and the height direction of the housing 10 are perpendicular to each other.

[0089] In some optional embodiments of this utility model, such as Figure 10 As shown, the first cavity 41 has the same shape as the second cavity 42, which facilitates matching the first tab 31 and the second tab 32, improves the compatibility of the insulating protection component 40, and reduces the assembly difficulty.

[0090] The following describes a battery cell 1 according to an embodiment of the present invention. The battery cell 1 according to an embodiment of the present invention includes a housing 10, terminals 20, a core assembly 30, and an insulation module according to the above embodiment of the present invention.

[0091] The pole post 20 is disposed in the housing 10, the pole core assembly 30 is disposed inside the housing 10, the pole core assembly 30 is provided with a first pole tab 31, and the insulating protective member 40 is disposed inside the housing 10 and located between the end of the pole core assembly 30 and the housing 10.

[0092] The insulating protective component 40 is installed inside the housing 10 to separate the first electrode 31 from the housing 10, preventing the first electrode 31 from being electrically connected to the housing 10, thereby preventing a short circuit. The insulating component 50 is disposed in the first cavity 41, and the insulating component 50 is used to provide an insulating gap between the electrode 20 and the housing 10, so as to prevent the electrode 20 from being electrically connected to the housing 10, thereby preventing a short circuit.

[0093] According to the embodiment of the present invention, the battery cell 1 utilizes the insulation module according to the above embodiment of the present invention. By providing a first cavity 41 in the insulation protection member 40, at least a portion of the insulation component 50 is disposed in the first cavity 41, thereby improving the utilization rate of space and making it easier to reserve more space for the core component 30 of the battery cell 1, thus facilitating the increase of the capacity of the battery cell 1.

[0094] In some embodiments of this utility model, such as Figure 5As shown, the battery cell 1 also includes a conductive sheet 60, which is disposed in the first cavity 41. The conductive sheet 60 is used to electrically connect the terminal post 20 and the first tab 31, so as to electrically connect the terminal post 20 and the first tab 31 together, and then output power to the outside using the terminal post 20.

[0095] The conductive sheet 60 is also placed in the first cavity 41 to make full use of the space of the first cavity 41, thereby improving the utilization rate of space.

[0096] In some embodiments, such as Figure 8 , Figure 9 As shown, the electrical connection area between the electrode post 20 and the conductive sheet 60 is offset from the electrical connection area between the first electrode tab 31 and the conductive sheet 60, which facilitates the improvement of the stability of the electrical connection between the electrode post 20 and the conductive sheet 60, and also improves the stability of the electrical connection between the first electrode tab 31 and the conductive sheet 60.

[0097] In some embodiments, the electrode post 20 and the first electrode tab 31 are spaced apart along the length of the conductive sheet 60 to offset the electrical connection area between the electrode post 20 and the conductive sheet 60 from the electrical connection area between the first electrode tab 31 and the conductive sheet 60.

[0098] In this configuration, along the height of the battery cell 1, the terminal post 20 is located on one side of the conductive sheet 60, and the first tab 31 is located on the other side of the conductive sheet 60. The terminal post 20 and the conductive sheet 60 are electrically connected by welding, and the first tab 31 and the conductive sheet 60 are electrically connected by welding, so that the electrical connection area between the terminal post 20 and the conductive sheet 60 is staggered from the electrical connection area between the first tab 31 and the conductive sheet 60. On the one hand, this can avoid the terminal post 20 or the first tab 31 and the conductive sheet 60 from having a poor weld, which can improve the stability of the welded connection. On the other hand, it can reduce the space occupied by the terminal post 20, the conductive sheet 60 and the first tab 31 along the height of the battery cell 1.

[0099] In some optional embodiments of the present invention, at least a portion of the insulating component 50 is located between the conductive sheet 60 and the housing 10 to separate the conductive sheet 60 and the housing 10, thereby preventing the conductive sheet 60 from being electrically connected to the housing 10 and thus preventing a short circuit.

[0100] In some specific embodiments of this utility model, such as Figure 5 , Figure 6 As shown, the insulation component 50 includes an insulation sleeve 51 and an insulation element 52. The insulation sleeve 51 is sleeved on the terminal post 20 and located between the terminal post 20 and the housing 10 to separate the terminal post 20 and the housing 10, thereby preventing the terminal post 20 from directly contacting the housing 10 and thus preventing the battery cell 1 from short-circuiting.

[0101] The insulating member 52 is located in the first cavity 41 and is disposed between the conductive sheet 60 and the housing 10. The insulating member 52 separates the conductive sheet 60 and the housing 10 to avoid direct contact between the conductive sheet 60 and the housing 10, thereby preventing short circuit of the battery cell 1.

[0102] In some embodiments, such as Figure 6 As shown, the insulating member 52 is provided with a protruding blocking block 53. The blocking block 53 protrudes toward the electrode core assembly 30. The blocking block 53 and the insulating member 52 define a receiving groove for accommodating the conductive sheet 60, thereby limiting the position of the conductive sheet 60 and thus fully separating the conductive sheet 60 from the housing 10 to prevent short circuit of the battery cell 1.

[0103] In some examples, such as Figure 5 As shown, the insulating member 52 and the sidewall of the first cavity 41 together enclose a chamber that accommodates part of the first tab 31, so as to prevent the first tab 31 from directly contacting the housing 10 in the event of collision or vibration, thereby ensuring the integrity of the structure of the first tab 31 and ensuring the safety of the battery cell 1.

[0104] The blocking block 53 is located outside the first tab 31 at the end in the first direction to limit the position of the first tab 31, prevent the first tab 31 from extending out of the blocking block 53 and electrically connecting with the housing 10, thereby preventing the battery cell 1 from short-circuiting and improving the safety of the battery cell 1.

[0105] Furthermore, the first direction is the width direction of the housing 10. In the width direction of the housing 10, the blocking block 53 is located at both ends of the insulating member 52 and is located outside the first electrode tab 31.

[0106] In addition, the blocking block 53 protrudes toward the core assembly 30 along the height direction of the housing 10, and the length of the blocking block 53 extends along the length direction of the housing 10 to fully separate the first tab 31 from the housing 10.

[0107] In some embodiments, the depth of the first cavity 41 extends along the height direction of the battery cell 1, and the conductive sheet 60 and the insulating member 52 are both disposed in the first cavity 41. This helps to save the space occupied by the insulating protective member 40, the conductive sheet 60 and the insulating member 52 in the height direction of the battery cell 1, thereby improving the space utilization rate and reserving more space for the core assembly 30.

[0108] In some embodiments of this utility model, the housing 10 is provided with a mating groove, and one end of the electrode post 20 is adapted to extend into the mating groove and be electrically connected to the conductive sheet 60. The other end of the electrode post 20 is located outside the housing 10 and is used to be electrically connected to an external structure so that the battery cell 1 can supply power to the external structure.

[0109] The insulating sleeve 51 is placed over the terminal post 20 and is located between the terminal post 20 and the mating groove to separate the terminal post 20 from the inner wall of the mating groove, thereby preventing the terminal post 20 from being electrically connected to the cover plate and preventing the battery cell 1 from short-circuiting.

[0110] The insulating member 52 is fitted over the insulating sleeve 51 and has a protruding blocking block 53. The blocking block 53 protrudes toward the electrode core assembly 30. The blocking block 53 and the insulating member 52 define a receiving groove for receiving the conductive sheet 60, thereby limiting the position of the conductive sheet 60 and sufficiently separating the conductive sheet 60 from the housing 10 to prevent short circuit of the battery cell 1.

[0111] In some optional embodiments of this utility model, the housing 10 includes a frame 11, a first side plate and a second side plate, the first side plate and the second side plate are spaced apart in a first direction or a second direction, the two ends of the frame 11 are open in the first direction or the second direction, and the frame 11 is fixedly connected to the first side plate and the second side plate to close the open ends of the frame 11.

[0112] The frame 11 includes a first sidewall 12 located at one end in the height direction, the pole post 20 is disposed on the first sidewall 12, and the pole core assembly 30 also includes a second pole tab 32, which is electrically connected to the first sidewall 12 of the frame 11.

[0113] In some embodiments, the first tab 31 is the positive tab of the core assembly 30, and the second tab 32 is the negative tab of the core assembly 30. The positive tab is electrically connected to the terminal post 20, and the negative tab is electrically connected to the first sidewall 12, so that the battery cell 1 can discharge.

[0114] In some examples, the first direction is the width direction of the frame 11, the second direction is the length direction of the frame 11, and the first direction, the second direction, and the height direction of the frame 11 are perpendicular to each other.

[0115] In some alternative embodiments of this utility model, the housing 10 includes a housing body and a cover plate. One end of the housing body is open, and the cover plate blocks the opening of the housing body. The pole post 20 is disposed on the cover plate, and the second pole lug 32 is electrically connected to the cover plate.

[0116] The opening of the shell body can be located at one end in the width direction, one end in the length direction, or one end in the height direction of the shell body; no further restrictions are imposed here.

[0117] In some embodiments, the first tab 31 is the positive tab of the core assembly 30, and the second tab 32 is the negative tab of the core assembly 30. The positive tab is electrically connected to the terminal post 20, and the negative tab is electrically connected to the cover plate, so that the battery cell 1 can discharge.

[0118] In some embodiments, the housing 10 is a metal part, such as stainless steel.

[0119] In some embodiments, the core assembly 30 is a wound structure or a stacked structure, and no further restrictions are imposed here.

[0120] In some embodiments of this utility model, such as Figure 9 , Figure 10 As shown, the housing 10 is provided with a liquid injection hole, and the insulating protective component 40 is provided with a through hole 47 that passes through it. The through hole 47 is arranged opposite to the liquid injection hole. The battery cell 1 also includes a sealing component 70, which is adapted to seal the liquid injection hole.

[0121] After assembling the battery cell 1, electrolyte can be injected into the housing 10 through the injection hole. After the electrolyte is injected, the injection hole is sealed with the sealing element 70 to prevent electrolyte leakage from the battery cell 1.

[0122] Specifically, corresponding through holes 47 are provided on the insulating protective element 40 so that the electrolyte can flow directly to the electrode core assembly 30 through the insulating protective element 40, thereby reducing electrolyte waste.

[0123] The through hole 47 can be either a round hole or a square hole; there are no strict restrictions here.

[0124] In some optional embodiments of this utility model, a blocking member (not shown in the figure) with a hollow area is provided in the through hole 47. The blocking member is used to block the injection of electrolyte, thereby reducing the flow rate of electrolyte and reducing the impact force of electrolyte on the electrode core assembly 30.

[0125] In some embodiments, such as Figure 10 As shown, the insulating protective member 40 includes a first cavity 41 and a second cavity 42 spaced apart in a second direction, and the insulating protective member 40 is provided with a through hole 47, which is located between the first cavity 41 and the second cavity 42.

[0126] The insulating protective component 40 includes a plurality of first groove sidewalls formed around the first cavity 41, a first partition 45 and a second partition 46, the first partition 45 and the second partition 46 being disposed at the bottom of the groove of the first cavity 41, and a first mating through groove 411 being formed between the first partition 45 and the second partition 46 at an interval. The insulating protective component 40 also includes a plurality of second groove sidewalls formed around the second cavity 42, a third partition 48 and a fourth partition 49, the third partition 48 and the fourth partition 49 being disposed at the bottom of the groove of the second cavity 42, and a second mating through groove 421 being formed between the third partition 48 and the fourth partition 49 at an interval.

[0127] In some examples, the first direction is the width direction of the housing 10, the second direction is the length direction of the housing 10, and the first direction, the second direction, and the height direction of the housing 10 are perpendicular to each other.

[0128] In some examples, the insulating protective component 40 is a one-piece molded structure, which can be 3D printed or injection molded, making it easier to reduce the difficulty of manufacturing and processing, and reduce costs.

[0129] In some embodiments of this utility model, the battery cell 1 is used to supply power to the electrical equipment, the electrical equipment includes a battery compartment, and the battery cell 1 is installed in the battery compartment.

[0130] Among them, electrical equipment includes, but is not limited to, mobile phones, tablets, and wearable devices.

[0131] The following describes a battery pack according to an embodiment of the present invention. The battery pack according to an embodiment of the present invention includes a housing and a plurality of battery cells 1 according to the above embodiments of the present invention, wherein the plurality of battery cells 1 are disposed within the housing.

[0132] According to the battery pack of the present invention, by utilizing the battery cell 1 of the above embodiment of the present invention, at least a portion of the insulating component 50 is disposed in the first recess 41 provided in the insulating protective component 40, so as to improve the utilization rate of space, thereby making it easier to reserve more space for the core component 30 of the battery cell 1, and to facilitate increasing the capacity of the battery cell 1.

[0133] The following describes an electrical device according to an embodiment of the present invention. The electrical device according to an embodiment of the present invention includes a battery pack according to the above-described embodiment of the present invention.

[0134] According to the embodiments of the present invention, the electrical equipment utilizes the battery pack according to the above embodiments of the present invention. By providing a first cavity 41 in the insulating protective member 40, at least a portion of the insulating component 50 is disposed in the first cavity 41, thereby improving the utilization rate of space and making it easier to reserve more space for the core assembly 30 of the battery cell 1, thus facilitating the increase of the capacity of the battery cell 1.

[0135] In some embodiments of this utility model, the electrical equipment may be a vehicle, an air conditioner, etc., and no further restrictions are imposed here.

[0136] Other components and operations of the electrical equipment according to the embodiments of this utility model are known to those skilled in the art and will not be described in detail here.

[0137] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. In the description of this utility model, "above" or "below" a second feature may include direct contact between the first and second features, or it may include contact between the first and second features not being in direct contact but through another feature between them.

[0138] In the description of this utility model, the terms "above", "over" and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0139] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0140] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0141] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An insulating module for a single battery cell, characterized in that, include: An insulating protective component (40) is adapted to be installed on the housing (10) of the battery cell. The insulating protective component (40) has a first cavity (41). A first mating groove (411) is provided on the bottom wall of the first cavity (41). The first mating groove (411) is adapted to allow the first tab (31) of the battery cell to extend into the first cavity (41) to be electrically connected to the terminal post (20) of the battery cell. An insulating component (50), at least a portion of which is disposed within the first cavity (41), the insulating component (50) being used to provide an insulating gap between the pole post (20) and the housing (10).

2. The insulation module of the battery cell according to claim 1, characterized in that, The insulating protective element (40) includes a first partition (45) and a second partition (46), which together define the bottom wall of the first cavity (41), and the first partition (45) and the second partition (46) are spaced apart in a first direction to define the first mating through groove (411).

3. The insulation module of the battery cell according to claim 2, characterized in that, In the first direction, the size of the first partition (45) is smaller than the size of the second partition (46).

4. The insulation module of the battery cell according to claim 3, characterized in that, At least one of the first partition (45) and the second partition (46) is configured to be inclined toward the first cavity (41).

5. The insulation module of the battery cell according to claim 2, characterized in that, The angle between the first partition (45) and / or the second partition (46) and the first direction is between 0° and 20°.

6. The insulation module of the battery cell according to any one of claims 1-5, characterized in that, The insulating protective element (40) also has a second cavity (42), and a second mating through groove (421) is provided on the bottom wall of the second cavity (42). The second mating through groove (421) is adapted to allow the second tab (32) of the battery cell to pass through for electrical connection with the housing (10).

7. The insulation module of the battery cell according to claim 6, characterized in that, The shape of the first cavity (41) is the same as the shape of the second cavity (42).

8. A single battery cell, characterized in that, include: A housing (10) and a pole post (20), wherein the pole post (20) is disposed on the housing (10); The electrode core assembly (30) is disposed inside the housing (10) and the electrode core assembly (30) is provided with a first electrode tab (31); According to any one of claims 1-7, the insulating protective member (40) is disposed inside the housing (10) and located between the end of the pole core assembly (30) and the housing (10).

9. The battery cell (1) according to claim 8, characterized in that, Also includes: A conductive sheet (60) is disposed in the first cavity (41) and is used to electrically connect the pole post (20) and the first tab (31).

10. The battery cell (1) according to claim 9, characterized in that, At least a portion of the insulating component (50) is located between the conductive sheet (60) and the housing (10).

11. The battery cell (1) according to claim 10, characterized in that, The insulating component (50) includes an insulating sleeve (51) and an insulating element (52). The insulating sleeve (51) is fitted onto the pole post (20) and located between the pole post (20) and the housing (10). The insulating element (52) is located in the first cavity (41) and is located between the conductive sheet (60) and the housing (10).

12. The battery cell (1) according to claim 11, characterized in that, The insulating member (52) is provided with a protruding blocking block (53) that protrudes toward the electrode core assembly (30), and the blocking block (53) and the insulating member (52) define a receiving groove for receiving the conductive sheet (60).

13. The battery cell according to claim 8, characterized in that, The housing (10) is provided with a liquid injection hole, and the insulating protective component (40) is provided with a through hole (47) that penetrates it. The through hole (47) is arranged opposite to the liquid injection hole. The battery cell (1) also includes a seal (70) adapted to seal the injection hole.

14. The battery cell according to claim 13, characterized in that, The through hole (47) is provided with a blocking element having a hollowed-out area.

15. A battery pack, characterized in that, include: shell; A plurality of battery cells (1) according to any one of claims 8-14, wherein the plurality of battery cells (1) are disposed within the housing.

16. An electrical appliance, characterized in that, Includes the battery pack as described in claim 15.

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