CN218300153U - Collector tray assembly and battery having same - Google Patents

Abstract

The utility model discloses a battery that is used for current collector subassembly of battery and has it, the battery includes casing, electric core and current collector subassembly, and electric core and current collector subassembly are all located in the casing, the current collector subassembly includes: the current collecting disc is arranged at one axial end of the battery cell; and the insulating piece is arranged on the current collecting disc, the insulating piece is in an annular shape, and the insulating piece is connected with the current collecting disc and at least partially suitable for being arranged around the outer peripheral side of the battery cell to separate the battery cell from the shell. According to the utility model discloses a current collector subassembly takes place to heel at electric core, off-centre or take place the inflation back at long-time work, and the contact can be taken place to the inner wall that electric core and casing to the insulating part to avoid battery circulation to jump water, seriously influence the performance, in addition, the insulating part also can play the positioning action to current collector and electric core in the assembling process of battery, makes electric core placed in the middle, prevents that electric core is eccentric, and from this, the battery is after adopting this current collector subassembly, and the reliability is further improved.

Description

Collector tray assembly and battery having same

technical field

The utility model relates to the technical field of batteries, in particular to a collector plate assembly and a battery with the same.

Background technique

It is pointed out in the related art that the cell of a cylindrical battery will expand during use, and if the cell touches the shell wall, it will cyclically dive, seriously affecting the performance of the battery. In addition, the cell is prone to problems such as eccentricity during assembly.

Utility model content

The utility model aims at at least solving one of the technical problems existing in the prior art. To this end, the utility model is to provide a current collecting plate assembly for a battery, which can prevent the electric core from contacting the casing and improve the reliability of the battery.

The utility model also proposes a battery with the above-mentioned collector plate assembly.

According to the current collecting plate assembly for the battery according to the first aspect of the utility model, the battery includes a casing, a battery cell and the collecting plate assembly, and the battery cell and the collecting plate assembly are both arranged on the In the casing, the collector plate assembly includes: a collector plate, the collector plate is arranged at one axial end of the electric core; an insulating member, the insulating member is arranged on the collector plate, and the insulating member Formed in a ring shape, the insulator is connected to the collector plate and at least partially surrounds the outer peripheral side of the battery core to separate the battery core from the casing.

According to the collector plate assembly of the present invention, a part of the insulator is arranged around the outer peripheral side of the battery core to separate the battery core and the shell, after the battery core tilts or expands during long-term work, the insulation The insulator can prevent the battery core from contacting the inner wall of the shell, thereby avoiding the battery cycle diving and seriously affecting the performance. In addition, the insulating piece can also play a role in positioning the collector plate and the battery cell during the battery assembly process, so that the battery The core is centered to prevent the eccentricity of the battery core, so that the reliability of the battery is further improved after using the collector plate assembly.

In some embodiments, the collecting pan is detachably connected to the insulator.

Still further, one of the collector plate and the insulator is formed with a clamping portion and the other is formed with a matching portion, and the clamping portion is clamped and fitted with the matching portion.

In a specific example, the engaging portion is formed on the collecting plate, and the engaging portion includes a plurality of engaging portions arranged at intervals along the circumference of the collecting plate. The matching portion is formed on the insulator, and the matching portion includes a plurality of matching portions corresponding to the engaging portion one by one.

Further, the clamping portion is formed on the circumference of the collector plate, the clamping portion is formed as a gap penetrating through the edge of the collector plate along the thickness direction, the matching portion is formed on the insulating member, The matching portion is formed as a positioning protrusion protruding toward the battery core, and the positioning protrusion is adapted to be clamped in the notch.

Still further, one of the positioning protrusion and the notch is formed with a radially extending locking protrusion on the side wall, and the other is formed with a radially extending locking groove, and the locking protrusion is suitable for insertion into The card slot.

According to some embodiments of the present utility model, the insulator includes: a connection portion, the connection portion is formed as a ring extending along the circumference of the collector plate and is adapted to be connected to the periphery of the collector plate; The barrier part is connected to the connection part, the barrier part extends along the axial direction of the housing relative to the connection part, and the barrier part is suitable for connecting at least part of the battery core to the The housing is separated.

Further, the collector plate is formed with a clamping portion, the clamping portion is formed on the periphery of the collector plate, and the clamping portion is formed as a notch penetrating through the edge of the collector plate along the thickness direction, The connection part is located on the side of the current collecting plate facing away from the electric core and is suitable for overlapping with the current collecting plate, the matching part is formed on the connecting part, and the matching part is formed to face The protruding positioning protrusion of the electric core is adapted to be clamped in the notch.

Further, the positioning protrusion is located at the junction of the blocking portion and the connecting portion.

According to some embodiments of the present utility model, the collector plate includes: a main body; an edge portion, the edge portion extends along the circumference of the main body portion, the connecting portion is adapted to be overlapped with the edge portion and connected, the side surface of the main body part away from the battery protrudes from the side surface of the connecting part away from the edge part.

Further, the bottom surface of the edge part is coplanar with the bottom surface of the main body part, the bottom surface of the edge part is the side surface of the edge part away from the connecting part, and the bottom surface of the main part is facing the One side surface of the cell.

In some embodiments, the thickness of the edge portion is smaller than the thickness of the main body portion, and the thickness of the overlapping connection portion and the edge portion is smaller than the thickness of the main body portion.

In some embodiments, the axial end surface of the barrier part facing away from the connecting part is a barrier end surface, and the collecting plate assembly defines a receiving groove for receiving the tab part of the electric core, The barrier part constitutes the peripheral wall of the receiving groove, and the distance between the bottom wall of the receiving groove and the end surface of the barrier in the axial direction of the electric core is smaller than that of the tab part in the axial direction of the electric core. Height in the axial direction.

In a specific example, the insulating part is a plastic part.

The battery according to the second aspect of the utility model includes the current collecting plate assembly for the battery according to the first aspect of the utility model.

According to the battery of the present utility model, by setting the current collecting plate assembly in the above embodiment, the battery cell can be better positioned to prevent the battery cell from contacting the casing and cause diving, thereby improving the quality and reliability.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

Fig. 1 is a schematic diagram of a collector plate assembly according to an embodiment of the present invention;

Fig. 2 is a schematic diagram of another angle of the collecting tray assembly shown in Fig. 1;

Fig. 3 is a sectional view along line A-A in Fig. 2;

Fig. 4 is an enlarged view of the encircled part B in Fig. 3;

Fig. 5 is a schematic diagram of an angle of a collector plate according to an embodiment of the present invention;

Fig. 6 is a schematic diagram of another angle of the collecting plate shown in Fig. 5;

Fig. 7 is a schematic diagram of an insulator according to an embodiment of the present invention;

Fig. 8 is a schematic diagram of an embodiment of the engagement part and the mating part;

Fig. 9 is a schematic view of another embodiment of the engaging part and the matching part.

Reference signs:

Collector tray assembly 100:

The collector plate 1, the main body 11, the edge 12, the engaging portion 121, the engaging groove 1211,

Insulator 2, connecting part 21, barrier part 22, barrier end surface 221, matching part 23, locking protrusion 231,

The receiving tank 3 has a bottom wall 31 .

detailed description

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

A current collecting tray assembly 100 for a battery according to an embodiment of the first aspect of the present invention will be described below with reference to FIGS. 1-9 .

As shown in FIG. 1 , according to the collector plate assembly 100 of the embodiment of the present utility model, the battery includes a housing (not shown in the figure), a battery cell (not shown in the figure) and the collector plate assembly 100, wherein the housing can be It is a metal part, and the electric core and the current collecting plate assembly 100 are both arranged in the casing. The current collecting plate assembly 100 may include: a current collecting plate 1 and an insulating part 2 .

Specifically, the current collector plate 1 is arranged at one end of the battery core in the axial direction. When there are tabs at both ends, there are two collecting plates 1, and the two collecting plates 1 are respectively electrically connected to the corresponding tabs. Correspondingly, the insulator 2 corresponds to the collecting plates 1 one by one. The insulator 2 is arranged on the collector plate 1, the insulator 2 is formed in a ring shape, the insulator 2 is connected to the collector plate 1, and at least part of the insulator 2 is suitable for surrounding the outer peripheral side of the electric core to separate the electric core And the housing, for example, the part of the insulating member 2 can be set to be lower than the flattened height of the tab part, so that this part can be embedded in the gap between the battery core and the housing, so as to separate the battery core and the housing .

According to the current collecting plate assembly 100 of the embodiment of the present invention, a part of the insulator 2 is arranged around the outer peripheral side of the battery core to separate the battery core and the shell, and when the battery core is tilted, eccentric or working for a long time After the expansion occurs in the battery, the insulator 2 can prevent the battery cell from contacting the inner wall of the casing, thereby avoiding the battery cycle diving, which seriously affects the performance. In addition, the insulator 2 can also play a role in the assembly process of the battery. As well as the positioning function of the battery cell, the battery cell is centered and the battery cell is prevented from being eccentric. Therefore, the reliability of the battery is further improved after the current collector plate assembly 100 is used.

In some embodiments, the collector plate 1 and the insulating member 2 are detachably connected. The method can be reasonably selected according to actual needs, so that the manufacturing process is simple and the assembly efficiency is high.

Further, the current collecting plate 1 is clamped with the insulator 2, so that the overall structure is simple.

Still further, one of the collector plate 1 and the insulator 2 is formed with a clamping portion 121 and the other is formed with a matching portion 23, and the clamping portion 121 is clamped with the matching portion 23, for example, the clamping portion 121 It can be a card hole or a card slot, and the matching part 23 can be a card protrusion, a buckle, etc.; it can be that the card joint part 121 is formed on the collector plate 1, and the matching part 23 is formed on the insulating part 2, or it can be the insulating part 2 A clamping portion 121 is formed on it, and a mating portion 23 is formed on the collector plate 1, so that the structure is simple and the assembly is convenient.

In a specific example, referring to FIG. 5-FIG. 7, the clamping portion 121 is formed on the collector plate 1, and the clamping portion 121 includes a plurality of clamping portions 121 arranged at intervals along the circumference of the collector plate 1. The matching portion 23 is formed on the insulator 2, and the matching portion 23 includes a plurality of matching portions 23 corresponding to the engaging portions 121 one by one. In this way, through the cooperation of the engaging portions 121 and the engaging portions 23, the The stability of the cooperation between the collector plate 1 and the insulating part 2.

Further, referring to FIG. 3 , FIG. 7 and FIG. 8 , a clamping portion 121 is formed on the collector plate 1 , the clamping portion 121 is formed on the periphery of the collector plate 1 , and the clamping portion 121 is formed to penetrate through the collector plate along the thickness direction. The notch on the edge of the current collecting plate 1, the connecting part 21 is located on the side of the collecting plate 1 facing away from the battery, the connecting part 21 is suitable for being connected with the collecting plate 1 after being stacked, and the connecting part 21 is formed with a matching part 23. The part 23 is formed as a positioning protrusion protruding toward the battery core, and the positioning protrusion is suitable for being clamped in the notch. In this way, through the cooperation of the positioning protrusion and the notch, the insulator 2 can be prevented from rotating relative to the collector plate 1, thereby It is beneficial to improve the stability of cooperation between the current collecting plate 1 and the insulating part 2 .

Further, referring to FIG. 9 , one of the side walls of the positioning protrusion and the notch is formed with a radially extending card protrusion 231 , and the other is formed with a radially extending card groove 1211 , and the card protrusion 231 is suitable for The insertion slot 1211, for example, can be formed on the radially inner side wall of the positioning protrusion with a radially inwardly extending tab 231, and on the opposite side wall of the notch is formed with a radially inwardly extending slot 1211, Or, it is also possible that a radially outwardly extending card groove 1211 is formed on the radially inner side wall of the positioning protrusion, and a radially outwardly extending card groove 1211 is formed on the opposite side wall of the notch. The cooperation of the engaging protrusion 231 and the engaging groove 1211 can make the collecting plate 1 and the insulator 2 form an integral body in the axial direction, and the connection is more stable, preventing the insulator 2 from falling off from the collecting plate 1 .

According to some embodiments of the present utility model, referring to FIG. 1 , FIG. 3 and FIG. 7 , the insulator 2 may include: a connecting portion 21 and a blocking portion 22 . Wherein, the connecting portion 21 is formed as a ring extending along the circumferential direction of the collecting plate 1, the connecting portion 21 is suitable for being connected with the periphery of the collecting plate 1, and the barrier portion 22 is connected to the side of the connecting portion 21 facing the cell. , the barrier part 22 extends along the axial direction of the housing relative to the connecting part 21, and the barrier part 22 is suitable for separating at least part of the cell from the housing. For example, as shown in FIG. The discs 1 are parallel to each other, and the connecting part 21 can be connected with the periphery of the collecting disc 1, such as clamping, bonding, etc., and the cross section of the barrier part 22 is parallel to the axial direction of the collecting disc 1, and the barrier part 22 is connected to the connection. part 21, so that when the collector plate assembly 100 is assembled with the cell and the housing, the cell is in the space enclosed by the collector plate 1 and the barrier part 22, and in the radial direction, the barrier Part 22 is between the outer peripheral wall of the cell and the inner peripheral wall of the casing, thereby separating the cell from the casing. In this way, the overall structure is simple. , The barrier part 22 can prevent the electric core from contacting the inner wall of the casing and the resulting battery cycle diving, which seriously affects the performance of the electric core.

Optionally, the barrier portion 22 may be formed as a complete ring extending along the circumference of the collector plate 1 , or may be divided into a plurality of arc segments, and the plurality of arc segments are spaced apart from each other.

Further, referring to FIG. 3 and FIG. 7 , a clipping portion 121 is formed on the collector plate 1 , the clipping portion 121 is formed on the periphery of the collector plate 1 , and the clipping portion 121 is formed to penetrate the collector plate 1 along the thickness direction. The notch on the edge, the connecting part 21 is located on the side of the collecting plate 1 facing away from the battery, the connecting part 21 is suitable for being connected with the collecting plate 1 after being stacked, and the connecting part 21 is formed with a matching part 23, which forms a The positioning protrusion protrudes toward the battery core, and the positioning protrusion is suitable for being clamped in the notch. In this way, through the cooperation of the positioning protrusion and the notch, the insulator 2 can be prevented from rotating relative to the collector plate 1, which is beneficial to improve The stability of the cooperation of the collecting plate 1 and the insulating part 2.

Further, referring to FIG. 7, the positioning protrusion is located at the junction of the barrier part 22 and the connecting part 21, that is, one side surface of the positioning protrusion is connected with the barrier part 22, and the other side surface of the positioning protrusion is connected to the connecting part 21. Connected, since the barrier part 22 and the connecting part 21 are both formed in an annular plate shape, the positioning protrusion is arranged at the joint of the barrier part 22 and the connecting part 21, so that the structural strength of the insulating part 2 can be further enhanced. It is beneficial to improve the cooperation stability between the current collecting plate 1 and the insulating member 2 and improve the quality of the battery.

According to some embodiments of the present utility model, referring to FIG. 3 and FIG. 5 , the collecting tray 1 includes: a main body portion 11 and an edge portion 12 . Wherein, the main body portion 11 can be formed into a disk shape, the edge portion 12 extends along the circumferential direction of the main body portion 11, the connecting portion 21 is suitable for being overlapped and connected with the edge portion 12, and the connecting portion 21 is suitable for being stacked on the edge portion 12. The side surface facing away from the battery core, the side surface of the main body 11 away from the battery core protrudes from the side surface of the connecting part 21 away from the edge part 12, so that the side surface of the main body 11 facing away from the battery core can be conveniently The side surface is electrically connected with the cover part of the casing, so as to transmit the electricity stored in the battery cell to the outside.

Further, referring to FIG. 3 , FIG. 4 and FIG. 6 , the bottom surface of the edge portion 12 is coplanar with the bottom surface of the main body portion 11 , wherein the bottom surface of the edge portion 12 is the side surface of the edge portion 12 away from the connecting portion 21 , and the main body portion The bottom surface of 11 is the side surface of the main body 11 facing the electric core. In other words, the bottom surface of the edge portion 12 and the bottom surface of the main body 11 are flush with each other, which helps the assembly of the collector plate 1 and the axial end of the electric core more easily. Stable to prevent the collector plate 1 from tilting. The thickness of the edge part 12 is smaller than the thickness of the main part 11, and the thickness of the connecting part 21 and the edge part 12 after overlapping is smaller than the thickness of the main part 11. In this way, the surface of the side of the main part 11 away from the battery core can be protruded, ensuring When the battery is assembled, the main body 11 of the current collecting plate 1 contacts the cover part of the casing, so as to successfully realize electrical connection with the cover part of the casing to transmit power to the outside.

According to some embodiments of the present invention, referring to FIG. 4 , the axial end face of the barrier part 22 away from the connecting part 21 is the barrier end face 221, and the collector plate assembly 100 defines a pole ear part for accommodating the electric core (Fig. not shown), the barrier part 22 constitutes the peripheral wall of the housing tank 3, and the distance H between the bottom wall 31 of the housing tank 3 and the barrier end surface 221 in the axial direction of the battery core is smaller than that of the tab part in the battery core The height in the axial direction, here, the bottom wall 31 of the receiving tank 3 is the side surface of the current collecting plate 1 facing the electric core, so that it can better avoid the electric core from being damaged when the electric core expands during charging and discharging. The contact between the core and the barrier part 22 will cause extrusion damage to the battery core, thereby improving the stability and reliability of the battery core and helping to prolong the service life of the battery.

In a specific example, the insulating part 2 is a plastic part, and the insulating part 2 is formed by injection molding, which is beneficial to reduce the cost and simplify the manufacturing.

The battery according to the embodiment of the second aspect of the present invention will be described below.

The battery according to the embodiment of the present utility model includes the collector plate assembly 100 for the battery in the above embodiments.

Specifically, the battery may include a casing (not shown in the figure), a battery cell (not shown in the figure) and a current collector assembly 100 . Wherein, the casing can be a metal piece such as aluminum, and the casing can include a casing body and a cover body, wherein the casing body defines a cylindrical shape with one end open, the battery cell has a pole ear, and the battery cell and the current collecting plate assembly 100 are both provided with In the case main body, the current collecting plate 1 of the current collecting plate assembly 100 is electrically connected to the tab part and the cover body respectively, and the insulator 2 can separate the electric core from the inner wall of the case main body.

According to the battery of the embodiment of the present utility model, by setting the current collecting plate assembly 100 in the above embodiment, the battery cell can be better positioned to prevent the battery cell from contacting the casing and cause diving, thereby improving the quality and reliability.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial ", "radial", "circumferential" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying No device or element must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present utility model, "plurality" means two or more, unless otherwise specifically defined.

In this utility model, unless otherwise specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connection, or integration; it can be mechanical connection, electrical connection, or communication; it can be direct connection or indirect connection through an intermediary, it can be the internal communication of two components or the interaction of two components relation. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structures, materials or features are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions and modifications, the scope of the present invention is defined by the claims and their equivalents.

Claims (15)

1. A current collecting tray assembly for a battery, the battery comprising a housing, a cell and the current collecting tray assembly, the cell and the current collecting tray assembly both being located within the housing, the current collecting tray assembly comprising:

the current collecting disc is arranged at one axial end of the battery cell;

the insulating part is arranged on the current collecting disc, the insulating part is in an annular shape, and the insulating part is connected with the current collecting disc and at least partially surrounds the outer peripheral side of the battery cell to separate the battery cell from the shell.

2. The current collecting disk assembly for a battery according to claim 1, wherein the current collecting disk is detachably coupled to the insulating member.

3. The current collecting tray assembly for a battery according to claim 2, wherein one of the current collecting tray and the insulating member is formed with a clamping portion and the other is formed with a fitting portion, the clamping portion being in clamping fit with the fitting portion.

4. The current collecting tray assembly for a battery according to claim 3, wherein the clamping portions are formed on the current collecting tray, the clamping portions comprise a plurality of clamping portions, the clamping portions are arranged at intervals along the circumferential direction of the current collecting tray, the matching portions are formed on the insulating member, the matching portions comprise a plurality of matching portions, and the matching portions are in one-to-one correspondence with the clamping portions.

5. The current collecting tray assembly for a battery according to claim 4, wherein the catching portion is formed at a peripheral edge of the current collecting tray, the catching portion is formed as a notch penetrating through an edge of the current collecting tray in a thickness direction,

the matching part is formed on the insulating piece, the matching part is formed into a positioning bulge protruding towards the battery cell, and the positioning bulge is suitable for being clamped in the notch.

6. The current collecting tray assembly for batteries according to claim 5, wherein one of the positioning protrusions and the notches has a radially extending catching protrusion formed on a sidewall thereof, and the other has a radially extending catching groove formed thereon, the catching protrusion being adapted to be inserted into the catching groove.

7. The current collecting tray assembly for a battery according to claim 3, wherein the insulating member comprises:

the connecting part is formed into a ring shape extending along the circumferential direction of the current collecting disc and is suitable for being connected with the circumferential edge of the current collecting disc;

the blocking part is connected with the connecting part, extends along the axial direction of the shell relative to the connecting part, and is suitable for separating at least part of the battery cell from the shell.

8. The current collecting tray assembly for a battery according to claim 7, wherein the catching portion is formed at a peripheral edge of the current collecting tray, the catching portion is formed as a notch penetrating through an edge of the current collecting tray in a thickness direction,

the connecting portion are located on one side, back to the battery core, of the current collecting disc and are suitable for being overlapped with the current collecting disc, the matching portion is formed in the connecting portion and is formed to face towards a positioning protrusion protruding from the battery core, and the positioning protrusion is suitable for being clamped in the notch.

9. The current collecting tray assembly for batteries according to claim 8, wherein said positioning protrusions are located at the junction of said spacer portion and said connecting portion.

10. The current collecting disk assembly for a battery according to claim 7, wherein the current collecting disk comprises:

a main body part;

an edge portion extending in a circumferential direction of the main body portion, the connecting portion being adapted to be overlapped and connected with the edge portion;

one side surface of the main body part, which is far away from the battery core, protrudes out of one side surface of the connecting part, which is far away from the edge part.

11. The current collecting tray assembly for a battery according to claim 10, wherein a bottom surface of the edge portion is coplanar with a bottom surface of the main body portion, the bottom surface of the edge portion being a side surface of the edge portion facing away from the connecting portion, and the bottom surface of the main body portion being a side surface facing toward the battery cell.

12. The current collecting tray assembly for a battery according to claim 10, wherein the thickness of the edge portion is smaller than that of the main body portion, and the thickness of the connecting portion after being stacked on the edge portion is smaller than that of the main body portion.

13. The current collector assembly for a battery according to claim 7, wherein an axial end face of the barrier portion facing away from the connecting portion is a barrier end face, a receiving groove for receiving a tab portion of the electrical core is defined in the current collector assembly, the barrier portion constitutes a peripheral wall of the receiving groove, and a distance between a bottom wall of the receiving groove and the barrier end face in an axial direction of the electrical core is smaller than a height of the tab portion in the axial direction of the electrical core.

14. The current collecting tray assembly for a battery according to any one of claims 1 to 13, wherein the insulating member is a plastic member.

15. A battery, comprising: a current collecting disk assembly for a battery according to any one of claims 1-14.

Images