CN216120667U - Battery cell and battery - Google Patents

Abstract

The utility model provides an electric core and a battery, wherein the electric core comprises: a first pole piece; a diaphragm; the first pole piece, the diaphragm and the second pole piece are wound to form a columnar cell main body, a first pole lug and a second pole lug are respectively arranged at two ends of the cell main body, the first pole lug is connected with the first pole piece, and the second pole lug is connected with the second pole piece; and the spacer ring is sleeved on the outer side of the first pole lug and/or the outer side of the second pole lug so as to separate the first pole lug from the second pole piece and/or separate the second pole lug from the first pole piece. From this, through setting up the space ring, can increase the insulating protection of one deck between first utmost point ear and second pole piece and/or between second utmost point ear and the first pole piece, can avoid the condition that contact short circuit appears in first utmost point ear and second pole piece, also can avoid the condition that contact short circuit appears in second utmost point ear and first pole piece to can reduce the defective rate of electric core, and, can improve the safety in utilization of electric core.

Description

Battery cell and battery

Technical Field

The utility model relates to the technical field of batteries, in particular to a battery cell and a battery with the battery cell.

Background

In the correlation technique, it is equipped with the diaphragm to press from both sides between utmost point ear and the pole piece, only insulate through the diaphragm that presss from both sides between utmost point ear and the pole piece (insulate through the diaphragm between anodal utmost point ear and the negative pole piece, insulate through the diaphragm between negative pole utmost point ear and the anodal pole piece), the utmost point ear and the pole piece of this kind of setting form have higher contact short circuit (anodal utmost point ear and negative pole piece contact can lead to electric core short circuit, negative pole utmost point ear and anodal pole piece contact can lead to electric core short circuit) risk, thereby lead to the defective rate of electric core higher, and, still can lead to the safety in utilization of electric core lower.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention is directed to a battery cell, in which a spacer is disposed, and a layer of insulation protection can be added between a first tab and a second pole piece and/or between a second tab and a first pole piece, so as to reduce a fraction defective of the battery cell and improve the use safety of the battery cell.

In order to achieve the purpose, the technical scheme of the utility model is realized as follows:

a cell, comprising: a first pole piece; a diaphragm; the first pole piece, the diaphragm and the second pole piece are wound to form a columnar cell main body, a first pole lug and a second pole lug are respectively arranged at two ends of the cell main body, the first pole lug is connected with the first pole piece, and the second pole lug is connected with the second pole piece; the spacer ring is sleeved on the outer side of the first pole lug and/or the outer side of the second pole lug, so that the first pole lug is separated from the second pole piece and/or made to be separated from the first pole piece.

In some examples of the present invention, the spacer includes a first spacer provided with a first through hole through which the first tab passes.

In some examples of the present invention, the first through hole penetrates the first space ring in a thickness direction of the first space ring.

In some examples of the present invention, the first through hole is a plurality of through holes, the first tab is a plurality of tabs, and the plurality of first through holes and the plurality of first tabs correspond to each other one by one.

In some examples of the utility model, the spacer includes a second spacer provided with a second through hole through which the second pole ear passes.

In some examples of the present invention, the second through hole penetrates the second space ring in a thickness direction of the second space ring.

In some examples of the present invention, the second through hole is a plurality of through holes, the second tab is a plurality of tabs, and the plurality of second through holes and the plurality of second tabs correspond to each other one by one.

In some examples of the present disclosure, the plurality of first tabs form a plurality of first tab groups, the plurality of first tab groups are sequentially spaced apart in a circumferential direction of the battery cell, each first tab group includes a plurality of first tabs, and the plurality of first tabs in each first tab group are sequentially spaced apart in a radial direction of the battery cell.

In some examples of the present disclosure, the plurality of second pole ears form a plurality of second pole ear groups, the plurality of second pole ear groups are sequentially spaced apart in a circumferential direction of the battery cell, each of the second pole ear groups includes a plurality of second pole ears, and the plurality of second pole ears in each of the second pole ear groups are sequentially spaced apart in a radial direction of the battery cell.

Compared with the prior art, the battery cell has the following advantages:

according to the battery cell, the spacer ring is arranged, so that a layer of insulation protection can be added between the first pole lug and the second pole piece and/or between the second pole lug and the first pole piece, the situation that the first pole lug and the second pole piece are in contact short circuit can be avoided, the situation that the second pole lug and the first pole piece are in contact short circuit can also be avoided, the reject ratio of the battery cell can be reduced, and the use safety of the battery cell can be improved.

Another object of the present invention is to provide a battery.

In order to achieve the purpose, the technical scheme of the utility model is realized as follows:

a battery comprises the battery core.

The advantages of the battery and the battery core are the same compared with the prior art, and are not described herein again.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

fig. 1 is an explosion diagram of a battery cell according to an embodiment of the present invention.

Description of reference numerals:

an electric core 100;

a cell body 10; a first tab 11; a first pole ear group 12; a second tab 13; a second pole ear group 14;

a space ring 20; a first space ring 21; a first through hole 22; a second space ring 23; a second through hole 24.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1, a battery cell 100 according to an embodiment of the present invention includes: a first pole piece, a diaphragm, a second pole piece, and a spacer 20.

The first pole piece, the diaphragm and the second pole piece are wound to form a cylindrical cell main body 10, the cell main body 10 has two opposite ends (i.e. the left and right directions shown in fig. 1 are that the cell main body 10 has left and right ends), one end of the cell main body 10 is provided with a first pole lug 11, the other end of the cell main body 10 is provided with a second pole lug 13, the first pole lug 11 is connected with the first pole piece, and the second pole lug 13 is connected with the second pole piece.

The outer side of the first tab 11 is sleeved with a spacer ring 20, or the outer side of the second tab 13 is sleeved with the spacer ring 20, or the outer side of the first tab 11 and the outer side of the second tab 13 are both sleeved with the spacer ring 20. Preferably, the outer side of the first tab 11 and the outer side of the second tab 13 are both sleeved with a spacer 20, the spacer 20 sleeved on the outer side of the first tab 11 can separate the first tab 11 from the second pole piece to avoid the first tab 11 from contacting the second pole piece, and the spacer 20 sleeved on the outer side of the second tab 13 can separate the second tab 13 from the first pole piece to avoid the second tab 13 from contacting the first pole piece.

Alternatively, the first tab 11 may be configured as one of a positive tab and a negative tab, the second tab 13 may be configured as the other of the positive tab and the negative tab, the first pole piece may be configured as one of a positive pole piece and a negative pole piece, and the second pole piece may be configured as the other of the positive pole piece and the negative pole piece. For example: the first tab 11 may be configured as a positive tab, the second tab 13 may be configured as a negative tab, the first pole piece may be configured as a positive pole piece, and the second pole piece may be configured as a negative pole piece. The spacer ring 20 sleeved outside the first tab 11 can be disposed between the first tab 11 and the second tab to separate the first tab 11 from the second tab, so that the first tab 11 and the second tab can be prevented from contacting each other, and the short circuit of the battery cell 100 can be avoided. The space ring 20 sleeved outside the second pole ear 13 can be disposed between the second pole ear 13 and the first pole piece, so that the second pole ear 13 is separated from the first pole piece, thereby preventing the second pole ear 13 from contacting the first pole piece and preventing the electric core 100 from short-circuiting.

Among the prior art, only insulate through the diaphragm that presss from both sides between utmost point ear and the pole piece (insulate through the diaphragm between anodal utmost point ear and the negative pole piece, insulate through the diaphragm between negative pole utmost point ear and the anodal pole piece), the utmost point ear and the pole piece of this kind of setting form have higher contact short circuit (anodal utmost point ear can lead to electric core short circuit with the negative pole piece contact, negative utmost point ear can lead to electric core short circuit with anodal pole piece contact) risk, thereby lead to the defective rate of electric core higher, and, still, the safety in utilization that can lead to electric core is lower.

And in this application, establish spacer 20 through the outside cover at first utmost point ear 11 and/or the outside of second utmost point ear 13, can make first utmost point ear 11 and second pole piece separation and/or make second utmost point ear 13 and first pole piece separation, thereby can avoid first utmost point ear 11 and second pole piece to take place the contact, can avoid second utmost point ear 13 and first pole piece to take place the contact, can reduce the defective rate of electric core 100, can improve the yield of electric core 100, and, can avoid the condition that electric core 100 short circuit appears in the use, can improve the safety in utilization of electric core 100.

From this, through setting up space ring 20, can increase one deck insulation protection between first utmost point ear 11 and second utmost point piece and/or between second utmost point ear 13 and the first utmost point piece, can avoid first utmost point ear 11 and the condition that the contact short circuit appears in the second utmost point piece, also can avoid second utmost point ear 13 and first utmost point piece to the condition that the contact short circuit appears to can reduce the defective rate of electric core 100, and, can improve the safety in utilization of electric core 100.

Alternatively, the cell main body 10 may be a winding structure of a full tab. Optionally, the material of the spacer 20 may be configured as plastic, and the plastic has good insulating property, so that the spacer 20 can have good insulating property.

It is understood that the cell main body 10 is formed by winding a first pole piece, a separator, and a second pole piece, the separator protrudes from the end portions of the first pole piece and the second pole piece in the axial direction of the cell main body 10, and the separator does not protrude from the end portions of the first tab 11 and the second tab 13. When the space ring 20 is sleeved on the outer side of the first tab 11, the space ring 20 can extrude the diaphragm between the second pole piece and the space ring 20, and at this time, a two-layer insulation structure of the diaphragm and the space ring 20 is arranged between the first tab 11 and the second pole piece.

When the space ring 20 is sleeved outside the second pole ear 13, the space ring 20 can extrude the diaphragm between the first pole piece and the space ring 20, and at the moment, two layers of insulation structures of the diaphragm and the space ring 20 are arranged between the second pole ear 13 and the first pole piece. With such a configuration, the reject ratio of the battery cell 100 can be further reduced, and the use safety of the battery cell 100 can be further improved.

In some embodiments of the present invention, as shown in fig. 1, the spacer 20 may include a first spacer 21, the first spacer 21 may be provided with a first through hole 22, and the first tab 11 may be disposed through the first through hole 22. It can be understood that the first spacer ring 21 can be sleeved outside the first tab 11, the first spacer ring 21 can squeeze the diaphragm between the second pole piece and the first spacer ring 21, and the first tab 11 can pass through the first through hole 22 provided on the first spacer ring 21, the first tab 11 passing through the first through hole 22 is suitable for a flattening (ultrasonic flattening) process, the flattened first tab 11 can be tightly attached to the surface of the first spacer ring 21 away from the cell main body 10, and the flattened first tab 11 can be laser-welded with the current collector.

The arrangement enables the first spacer 21 to be located between the first tab 11 and the second tab, so that the first tab 11 is separated from the second tab, the first tab 11 can be prevented from contacting the second tab, the short circuit of the battery cell 100 can be avoided, the first tab 11 is flatly rubbed, the flatly rubbed first tab 11 is welded with the current collector, the internal resistance of the battery cell 100 can be reduced, and the overcurrent capacity of the battery cell 100 can be improved.

In some embodiments of the present invention, as shown in fig. 1, the first through hole 22 may be disposed through the first space ring 21 in a thickness direction of the first space ring 21, where the thickness direction of the first space ring 21 is a left-right direction shown in fig. 1, optionally, the first through hole 22 may be formed by machining, and by disposing the first through hole 22 in a manner of penetrating through the first space ring 21, when the first space ring 21 is sleeved on the outer side of the first tab 11, an interference phenomenon between the first space ring 21 and the first tab 11 may be avoided, so that the space ring 20 may be conveniently sleeved on the outer side of the first tab 11, and the production efficiency of the battery cell 100 may be improved.

In some embodiments of the present invention, as shown in fig. 1, the number of the first through holes 22 may be provided in plurality, the number of the first tabs 11 may be provided in plurality, and the plurality of first through holes 22 and the plurality of first tabs 11 may be provided in one-to-one correspondence.

Optionally, the first tab 11 is subjected to die cutting, so that the number of the first tab 11 is plural, the number of the first through holes 22 may be the same as the number of the first tab 11, and the plural first through holes 22 may be arranged corresponding to the plural first tabs 11, and when the first space ring 21 is sleeved on the outer side of the first tab 11, the first tab 11 may pass through the corresponding first through hole 22. Through setting up the quantity with first utmost point ear 11 into a plurality ofly (promptly through carrying out the cross cutting to first utmost point ear 11 and handling), can be convenient for establish first spacer 21 cover in the outside of first utmost point ear 11, can reduce electric core 100's the assembly degree of difficulty, can improve electric core 100's production efficiency.

Optionally, before the first space ring 21 is sleeved on the outer side of the first tab 11, the plurality of first tabs 11 may be subjected to pre-welding, and the first space ring 21 may be more conveniently sleeved on the outer side of the first tab 11 by performing pre-welding on the plurality of first tabs 11.

In some embodiments of the present invention, as shown in fig. 1, the spacer 20 may include a second spacer 23, the second spacer 23 may be provided with a second through hole 24, and the second tab 13 may be disposed through the second through hole 24. It can be understood that the second spacer ring 23 can be sleeved outside the second tab 13, the second spacer ring 23 can squeeze the separator between the first pole piece and the second spacer ring 23, the second tab 13 can pass through the second through hole 24 provided on the second spacer ring 23, the second tab 13 passing through the second through hole 24 is suitable for a flattening (ultrasonic flattening) process, the flattened second tab 13 can be tightly attached to the surface of the second spacer ring 23 away from the cell main body 10, and the flattened second tab 13 can be laser-welded with the current collector.

Set up like this second spacer 23 and can be located between second utmost point ear 13 and the first pole piece to make second utmost point ear 13 and first pole piece separation, can avoid second utmost point ear 13 and first pole piece to take place the contact, can avoid electric core 100 short circuit, and through rubbing the processing of leveling with second utmost point ear 13, then will rub second utmost point ear 13 after leveling and weld with the mass flow body, can reduce the internal resistance of electric core 100, can improve electric core 100's overcurrent ability.

In some embodiments of the present invention, as shown in fig. 1, the second through hole 24 may be disposed through the second spacer 23 in a thickness direction of the second spacer 23, where the thickness direction of the second spacer 23 is a left-right direction shown in fig. 1, optionally, the second through hole 24 may be formed by machining, and by disposing the second through hole 24 in a manner of penetrating through the second spacer 23, when the second spacer 23 is sleeved on the outer side of the second tab 13, an interference phenomenon between the second spacer 23 and the second tab 13 may be avoided, so that the spacer 20 is conveniently sleeved on the outer side of the second tab 13, and the production efficiency of the battery cell 100 may be improved.

In some embodiments of the present invention, as shown in fig. 1, the number of the second through holes 24 may be provided in plurality, the number of the second tabs 13 may be provided in plurality, and the plurality of second through holes 24 and the plurality of second tabs 13 may be provided in one-to-one correspondence.

Optionally, the number of the second tabs 13 can be multiple by performing die cutting on the second tabs 13, the number of the second through holes 24 can be the same as the number of the second tabs 13, and the plurality of second through holes 24 can be arranged corresponding to the plurality of second tabs 13, so that when the second space ring 23 is sleeved on the outer side of the second tabs 13, the second tabs 13 can pass through the corresponding second through holes 24. The number of the second electrode lugs 13 is set to be multiple (namely, the second electrode lugs 13 are subjected to die cutting treatment), so that the second space ring 23 can be conveniently sleeved outside the second electrode lugs 13, the assembling difficulty of the battery cell 100 can be reduced, and the production efficiency of the battery cell 100 can be improved.

Optionally, before the second space ring 23 is sleeved on the outer side of the second tab 13, the plurality of second tabs 13 may be subjected to pre-welding, and the second space ring 23 may be more conveniently sleeved on the outer side of the second tab 13 by performing pre-welding on the plurality of second tabs 13.

In some embodiments of the present invention, as shown in fig. 1, the plurality of first tabs 11 may form a plurality of first tab groups 12, the plurality of first tab groups 12 may be sequentially spaced apart in a circumferential direction of the battery cell 100, and each of the plurality of first tab groups 12 may include a plurality of first tabs 11, and the plurality of first tabs 11 in each of the plurality of first tab groups 12 may be sequentially spaced apart in a radial direction of the battery cell 100.

Alternatively, the first tab 11 can be formed into a plurality of first tab groups 12 through a die cutting process, and the plurality of first tab groups 12 may be sequentially arranged at intervals in the circumferential direction of the battery cell 100. For example, the number of the first tab groups 12 may be six, and in the circumferential direction of the battery cell 100, the six first tab groups 12 may be sequentially and uniformly spaced apart, that is, an included angle between every two adjacent first tab groups 12 is 60 degrees. And, in the radial direction of the battery cell 100, a plurality of first tabs 11 included in each first tab group 12 may be sequentially spaced apart.

Through setting up a plurality of first utmost point ears 11 into the first utmost point ear group 12 of multiunit, when establishing first spacer 21 cover in the outside of first utmost point ear 11, the first through-hole 22 that makes every utmost point ear 11 pass corresponding that can be rapid can reduce electric core 100's the assembly degree of difficulty. Moreover, the rubbing treatment of the plurality of first tabs 11 can be facilitated, and the production efficiency of the battery cell 100 can be improved.

It should be noted that the number of the first tab groups 12 is not limited to six, and the number of the first tab groups 12 may be set according to actual requirements, for example, the number of the first tab groups 12 may also be set to four or eight, which is not limited in this application.

Alternatively, as shown in fig. 1, the cross-sectional areas of the plurality of first tabs 11 of each first tab group 12 may gradually increase from the radially inner side of the battery cell 100 to the radially outer side of the battery cell 100, and the cross-sectional areas of the plurality of first through holes 22 disposed corresponding to the plurality of first tabs 11 also increase accordingly. The arrangement mode of the plurality of first tabs 11 of each first tab group 12 is reasonable, and the use reliability of the battery cell 100 can be ensured.

In some embodiments of the present invention, as shown in fig. 1, the plurality of second tabs 13 may form a plurality of second tab groups 14, the plurality of second tab groups 14 may be sequentially spaced apart in a circumferential direction of the battery cell 100, and each of the plurality of second tab groups 14 may include a plurality of second tabs 13, and the plurality of second tabs 13 in each of the plurality of second tab groups 14 may be sequentially spaced apart in a radial direction of the battery cell 100.

Alternatively, the second tabs 13 can be formed into a plurality of second tab groups 14 through a die cutting process, and the plurality of second tab groups 14 may be sequentially spaced apart in the circumferential direction of the battery cells 100. For example, the number of the second pole ear groups 14 may be six, and in the circumferential direction of the battery cell 100, the six second pole ear groups 14 may be sequentially and uniformly spaced apart, that is, an included angle between every two adjacent second pole ear groups 14 is 60 degrees. And, in the radial direction of the battery cell 100, the plurality of second tabs 13 included in each second tab group 14 may be sequentially spaced apart.

Through setting up a plurality of second utmost point ears 13 into multiunit second utmost point ear group 14, when establishing first spacer 21 cover in the outside of second utmost point ear 13, can be rapid make every second utmost point ear 13 pass corresponding second through-hole 24, can reduce the assembly degree of difficulty of electric core 100. Moreover, the kneading treatment of the plurality of second tabs 13 can be facilitated, and the production efficiency of the battery cell 100 can be improved.

It should be noted that the number of the second electrode groups 14 is not limited to six, and the number of the second electrode groups 14 may be set according to actual requirements, for example, the number of the second electrode groups 14 may also be set to four or eight, which is not limited in this application.

Alternatively, as shown in fig. 1, the cross-sectional areas of the plurality of second pole ears 13 of each second pole ear group 14 may gradually increase from the radially inner side of the battery cell 100 to the radially outer side of the battery cell 100, and the cross-sectional areas of the plurality of second through holes 24 disposed corresponding to the plurality of second pole ears 13 also increase accordingly. The arrangement of the second pole ears 13 in each second pole ear group 14 is reasonable, and the use reliability of the battery cell 100 can be ensured.

According to the battery of the embodiment of the present invention, including the battery cell 100 of the above embodiment, the battery may be a cylindrical battery, and by providing the spacer 20, a layer of insulation protection may be added between the first tab 11 and the second pole piece and/or between the second tab 13 and the first pole piece, so as to avoid a situation that the first tab 11 and the second pole piece are in contact short circuit, and also avoid a situation that the second tab 13 and the first pole piece are in contact short circuit, so as to reduce a fraction defective of the battery cell 100, and improve the use safety of the battery cell 100, so as to improve the use safety of the battery.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features.

In the description of the present invention, "a plurality" means two or more.

In the description of the present invention, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween.

In the description of the utility model, "above", "over" and "above" a first feature in a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A battery cell (100), comprising:

a first pole piece;

a diaphragm;

the first pole piece, the diaphragm and the second pole piece are wound to form a columnar cell main body (10), two ends of the cell main body (10) are respectively provided with a first pole lug (11) and a second pole lug (13), the first pole lug (11) is connected with the first pole piece, and the second pole lug (13) is connected with the second pole piece;

the spacer ring (20) is sleeved on the outer side of the first pole lug (11) and/or the outer side of the second pole lug (13) so as to separate the first pole lug (11) from the second pole piece and/or separate the second pole lug (13) from the first pole piece;

in the axial direction of the battery cell main body (10), one end of the diaphragm extends out of the end part of the first pole piece, and one end of the diaphragm extending out of the end part of the first pole piece is clamped between the spacer ring (20) and the second pole piece;

and/or the other end of the diaphragm extends out of the end part of the second pole piece, and one end of the diaphragm extending out of the end part of the second pole piece is clamped between the space ring (20) and the first pole piece.

2. The electrical core (100) of claim 1, wherein the spacer ring (20) comprises a first spacer ring (21), the first spacer ring (21) being provided with a first through hole (22), the first tab (11) passing through the first through hole (22).

3. The electrical core (100) of claim 2, wherein the first through hole (22) penetrates the first spacer ring (21) in a thickness direction of the first spacer ring (21).

4. The battery cell (100) of claim 2 or 3, wherein the number of the first through holes (22) is multiple, the number of the first tabs (11) is multiple, and the number of the first through holes (22) and the number of the first tabs (11) correspond to each other one by one.

5. The electrical core (100) of claim 1 or 2, wherein the spacer ring (20) comprises a second spacer ring (23), the second spacer ring (23) being provided with a second through hole (24), the second tab (13) passing through the second through hole (24).

6. The electrical core (100) according to claim 5, wherein the second through hole (24) penetrates the second spacer ring (23) in a thickness direction of the second spacer ring (23).

7. The battery cell (100) of claim 5, wherein the number of the second through holes (24) is multiple, the number of the second tabs (13) is multiple, and the number of the second through holes (24) and the number of the second tabs (13) correspond to each other one by one.

8. The battery cell (100) of claim 4, wherein the plurality of first tabs (11) form a plurality of first tab groups (12), the plurality of first tab groups (12) being sequentially spaced apart in a circumferential direction of the battery cell (100), each first tab group (12) comprising a plurality of first tabs (11), the plurality of first tabs (11) in each first tab group (12) being sequentially spaced apart in a radial direction of the battery cell (100).

9. The battery cell (100) of claim 7, wherein the plurality of second tabs (13) form a plurality of sets of second tab groups (14), the plurality of sets of second tab groups (14) being sequentially spaced apart in a circumferential direction of the battery cell (100), each set of second tab groups (14) comprising a plurality of second tabs (13), the plurality of second tabs (13) in each set of second tab groups (14) being sequentially spaced apart in a radial direction of the battery cell (100).

10. A battery, characterized in that it comprises a battery cell (100) according to any of claims 1 to 9.

Images