CN219067180U - Battery and battery pack - Google Patents

Abstract

The utility model relates to the technical field of batteries, and provides a battery and a battery pack. The battery includes: a battery case; the pole assembly is arranged on the battery shell, and at least part of the pole assembly is positioned outside the battery shell; the insulating protection piece is arranged on the pole assembly and at least covers the surface of the pole assembly, which is away from the battery shell. The pole assembly is arranged on the battery shell, at least part of the pole assembly is located outside the battery shell, and the insulating protection piece is arranged on the pole assembly and at least covers the surface of the pole assembly, which is away from the battery shell, so that the insulating protection piece can play an insulating protection role on the pole assembly when the batteries are grouped, and the situation that the pole assembly is in error contact with the adjacent batteries is avoided, so that the safety use performance of the batteries is improved.

Description

Battery and battery pack

Technical Field

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

Background

In the related art, during the battery grouping process, the post assembly may be in erroneous contact with the adjacent battery due to the limitation of the arrangement position of the post assembly or the occurrence of error accumulation in the installation.

Disclosure of Invention

The utility model provides a battery and a battery pack, which are used for improving the service performance of the battery.

According to a first aspect of the present utility model, there is provided a battery comprising:

a battery case;

the pole assembly is arranged on the battery shell, and at least part of the pole assembly is positioned outside the battery shell;

the insulating protection piece is arranged on the pole assembly and at least covers the surface of the pole assembly, which is away from the battery shell.

The battery provided by the embodiment of the utility model comprises a battery shell, a pole assembly and an insulating protection piece, wherein the pole assembly is arranged on the battery shell, at least part of the pole assembly is positioned outside the battery shell, and the insulating protection piece is arranged on the pole assembly and at least covers the surface of the pole assembly, which is away from the battery shell, so that the insulating protection piece can play an insulating protection role on the pole assembly when the batteries are grouped, and the occurrence of error contact between the pole assembly and an adjacent battery is avoided, and the safe use performance of the battery is improved.

According to a second aspect of the present utility model, there is provided a battery pack including the above-described battery.

The battery pack comprises a battery, the battery comprises a battery shell, a pole assembly and an insulation protection piece, the pole assembly is arranged on the battery shell, at least part of the pole assembly is positioned on the outer side of the battery shell, and the insulation protection piece is arranged on the pole assembly and at least covers the surface of the pole assembly, which is away from the battery shell, so that the insulation protection piece can play an insulation protection role on the pole assembly when the battery is assembled, and error contact between the pole assembly and an adjacent battery is avoided, and the safe use performance of the battery pack is improved.

Drawings

For a better understanding of the present disclosure, reference may be made to the embodiments illustrated in the following drawings. The components in the drawings are not necessarily to scale and related elements may be omitted in order to emphasize and clearly illustrate the technical features of the present disclosure. In addition, the relevant elements or components may have different arrangements as known in the art. Furthermore, in the drawings, like reference numerals designate identical or similar parts throughout the several views.

Wherein:

fig. 1 is a schematic view illustrating a structure of a battery pack according to an exemplary embodiment;

fig. 2 is a schematic view of a structure of a battery according to an exemplary embodiment from one view;

fig. 3 is a schematic view of a structure of another view of a battery according to an exemplary embodiment;

fig. 4 is a partial schematic structure of a battery according to an exemplary embodiment.

The reference numerals are explained as follows:

10. a battery case; 11. a recess; 12. a first surface; 13. a second surface; 20. a pole assembly; 21. a first portion; 211. an upper surface; 22. a second portion; 221. a side surface; 222. a conductive connection surface; 23. a spacer; 24. a conductive member; 30. an insulating protector; 31. a first section; 32. a second section; 33. convex ribs; 40. and a bus bar.

Detailed Description

The technical solutions in the exemplary embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings in the exemplary embodiments of the present disclosure. The example embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the present disclosure, and it is therefore to be understood that various modifications and changes may be made to the example embodiments without departing from the scope of the present disclosure.

In the description of the present disclosure, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance unless explicitly specified or limited otherwise; the term "plurality" refers to two or more than two; the term "and/or" includes any and all combinations of one or more of the associated listed items. In particular, references to "the/the" object or "an" object are likewise intended to mean one of a possible plurality of such objects.

Unless specified or indicated otherwise, the terms "connected," "fixed," and the like are to be construed broadly and are, for example, capable of being fixedly connected, detachably connected, or integrally connected, electrically connected, or signally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the terms in the present disclosure may be understood by those skilled in the art according to the specific circumstances.

Further, in the description of the present disclosure, it should be understood that the terms "upper", "lower", "inner", "outer", and the like, as described in the example embodiments of the present disclosure, are described with the angles shown in the drawings, and should not be construed as limiting the example embodiments of the present disclosure. It will also be understood that in the context of an element or feature being connected to another element(s) "upper," "lower," or "inner," "outer," it can be directly connected to the other element(s) "upper," "lower," or "inner," "outer," or indirectly connected to the other element(s) "upper," "lower," or "inner," "outer" via intervening elements.

An embodiment of the present utility model provides a battery, referring to fig. 1 to 4, the battery includes: a battery case 10; the pole assembly 20, the pole assembly 20 is disposed on the battery housing 10, and at least part of the pole assembly 20 is located outside the battery housing 10; the insulating protection member 30 is disposed on the pole assembly 20, and covers at least a surface of the pole assembly 20 facing away from the battery case 10.

The battery according to one embodiment of the utility model comprises a battery shell 10, a pole assembly 20 and an insulation protection member 30, wherein the pole assembly 20 is arranged on the battery shell 10, at least part of the pole assembly 20 is positioned outside the battery shell 10, and the insulation protection member 30 is arranged on the pole assembly 20, and at least covers the surface of the pole assembly 20, which is away from the battery shell 10, so that the insulation protection member 30 can play an insulation protection role on the pole assembly 20 when the batteries are assembled, and error contact between the pole assembly 20 and adjacent batteries is avoided, thereby improving the safe service performance of the batteries.

It should be noted that, when the pole assembly 20 is used as a charging and discharging end of a battery, at least part of the pole assembly 20 is of a conductive structure, and when the batteries are grouped, in order to ensure the space utilization rate of a battery box and the stability of the installation of the batteries, there may be an excessive gap between the batteries, so that the possibility that the pole assembly 20 is in erroneous contact with an adjacent battery may exist, in this embodiment, by providing the insulating protector 30 on the pole assembly 20, and making the insulating protector 30 at least cover the surface of the pole assembly 20 facing away from the battery housing 10, the erroneous contact between the pole assembly 20 and the adjacent battery may be effectively avoided, and a series of problems such as short circuit, electric leakage and the like may be avoided.

In one embodiment, as shown in fig. 4, the pole assembly 20 includes a first portion 21 and a second portion 22 connected, the first portion 21 is disposed on the battery case 10, and the second portion 22 extends from a side of the first portion 21 away from the battery case 10 such that an included angle greater than 0 and less than 180 degrees is formed between the first portion 21 and the second portion 22; wherein, the insulating protector 30 covers at least the upper surface 211 of the first portion 21, so that the possibility of erroneous contact between the first portion 21 and the adjacent battery can be effectively avoided, and the safe use performance of the battery can be improved.

The first portion 21 of the post assembly 20 is fixedly connected to the battery housing 10, and the second portion 22 extends from a side of the first portion 21 remote from the battery housing 10, so that the second portion 22 is configured to electrically connect to the bus bar 40 when the batteries are grouped.

An included angle larger than 0 and smaller than 180 degrees is formed between the first portion 21 and the second portion 22, namely the first portion 21 and the second portion 22 can not be on the same plane, and on the basis of facilitating connection of the pole assembly 20 and the busbar 40, the space formed between two adjacent batteries can be reasonably utilized when the batteries are assembled by the pole assembly 20, so that the space utilization rate of the battery pack is improved.

In some embodiments, the second portion 22 is connected to one end of the first portion 21, and an included angle greater than 70 degrees and less than 180 degrees may be formed between the first portion 21 and the second portion 22, so that the second portion 22 may not excessively extend toward the inner side of the battery, thereby facilitating connection of the post assembly 20 and the busbar 40 when the subsequent batteries are grouped.

In one embodiment, the insulating protector 30 also covers the side surface 221 of the second portion 22 that is connected to the upper surface 211, so that insulating protection of the pole assembly 20 by the insulating protector 30 may be further prompted, thereby increasing the safe use of the battery.

As shown in connection with fig. 4, the first portion 21 has an upper surface 211 and the second portion 22 has a side surface 221, the upper surface 211 and the side surface 221 are connected, and the insulation protector 30 can cover the upper surface 211 and the side surface 221, thereby achieving reliable insulation protection of the pole assembly 20.

In one embodiment, as shown in fig. 3, the insulating protector 30 includes a first segment 31 and a second segment 32, the first segment 31 covers the upper surface 211, and the second segment 32 covers the side surface 221, that is, an included angle may be formed between the first segment 31 and the second segment 32, and insulating protection of the first portion 21 and the second portion 22 may be respectively achieved, so that insulating protection of the pole assembly 20 may be effectively achieved during the battery grouping process.

In one embodiment, the top end of the second section 32 is not lower than the top end of the side surface 221, thereby enabling the second section 32 to reliably shield the second portion 22 from erroneous contact of the second portion 22 with an adjacent battery.

The top end of the side surface 221 of the second portion 22 may be the portion closest to the adjacent cell, at which time, by making the top end of the second section 32 not lower than the top end of the side surface 221, it is possible to ensure that the second section 32 can achieve insulation protection of the second portion 22.

It should be noted that in some embodiments, it is not excluded that the top end of the second section 32 may be lower than the top end of the side surface 221.

In one embodiment, the first portion 21 and the second portion 22 are substantially perpendicular, which not only enables the first portion 21 and the second portion 22 to have a relatively simple structure, but also facilitates the connection of the second portion 22 with the bus bar 40, thereby improving the installation efficiency when the batteries are assembled.

The first portion 21 is disposed on the battery case 10, the second portion 22 is connected to one end of the first portion 21, and the second portion 22 may be connected to one end of the first portion 21 near the circumferential outer edge of the battery case 10 while the first portion 21 and the second portion 22 are substantially perpendicular, so that the bus bar 40 may be conveniently connected to the second portion 22 when the batteries are grouped.

In one embodiment, as shown in fig. 2, the side of the second portion 22 facing away from the insulating protector 30 is provided with a conductive connection surface 222, so that the conductive connection surface 222 may be exposed, whereby it may be ensured that the bus bar 40 can form an electrical connection with the conductive connection surface 222.

In one embodiment, the conductive connection surface 222 is disposed beyond the circumferential outer surface of the battery case 10, so that it is unnecessary to protrude inside the battery when the bus bar 40 is connected with the conductive connection surface 222, thereby not only facilitating the connection of the bus bar 40 with the conductive connection surface 222, improving the efficiency of battery grouping, but also simplifying the structure of the bus bar 40.

In one embodiment, the conductive connection surface 222 is substantially perpendicular to the surface of the battery case 10 where the post assembly 20 is provided, so that connection of the bus bar 40 with the conductive connection surface 222 can be conveniently accomplished, the bus bar 40 can be substantially in a plate structure when making electrical connection of adjacent batteries, and can be vertically connected to the conductive connection surface 222 of the adjacent batteries, not only can grouping efficiency of the batteries be improved, but also structural stability of the bus bar 40 can be ensured, and after all, the structure of the bus bar 40 is simpler.

It should be noted that, in this disclosure, measurement errors, manufacturing errors, and installation errors are basically considered, and when the foregoing is not considered, the first portion 21 and the second portion 22 may be perpendicular, and the conductive connection surface 222 may be perpendicular to the surface of the battery case 10 on which the post assembly 20 is disposed.

In one embodiment, the top end of the insulating protector 30 is not lower than the top end of the conductive connection surface 222, so that the insulating protector 30 can realize reliable insulating protection on the top end of the conductive connection surface 222, and the problem of false contact between the top end of the conductive connection surface 222 and an adjacent battery is avoided.

In one embodiment, as shown in fig. 3, a protruding rib 33 is disposed on a side of the insulating protection member 30 facing away from the pole assembly 20, where the protruding rib 33 not only can improve the structural strength of the insulating protection member 30, but also can improve the insulating capability between the pole assembly 20 and the adjacent battery, and can ensure the insulating capability between the pole assembly 20 and the adjacent battery without excessively increasing the thickness of the insulating protection member 30.

In one embodiment, the plurality of ribs 33 are arranged on the insulating protection member 30 at intervals, so that the insulating protection capability is further improved on the basis of improving the structural strength of the insulating protection member 30.

The insulating protector 30 may be disposed at an interval from adjacent cells, or the insulating protector 30 may be in contact with adjacent cells, and on the basis of realizing insulating protection, the insulating protector 30 may also be used to realize reliable positioning between cells, thereby improving efficiency of battery grouping, and also may realize support for adjacent cells, thereby improving safety and stability of the battery pack.

The ribs 33 are provided on the first and second sections 31 and 32 of the insulation protector 30, and the ribs 33 extend from the first section 31 to the second section 32, so that structural reinforcement of the insulation protector 30 can be effectively improved, and insulation capability of the first and second sections 31 and 32 can be ensured.

In one embodiment, the top end of the insulating protector 30 facing away from the battery case 10 is not lower than the top end of the pole assembly 20 facing away from the battery case 10, so that the insulating protection performance of the insulating protector 30 can be improved, the safety protection of the battery pack can be improved, and the safety performance of the battery pack can be reliably improved.

In one embodiment, as shown in fig. 3, the pole assembly 20 includes: a separator 23, the separator 23 being provided on the battery case 10; the conductive member 24, the conductive member 24 is disposed on the spacer 23, so as to be fixed on the battery case 10 through the spacer 23, and the insulating protection member 30 at least covers the surface of the conductive member 24, so that erroneous contact between the conductive member 24 and the battery case of an adjacent battery can be avoided, thereby ensuring the safety performance of the battery.

The conductive member 24 is fixed on the battery case 10 through the spacer 23, and the spacer 23 can realize fixed protection of the conductive member 24, for example, when the spacer 23 includes an insulating structure, the spacer 23 can ensure electrical insulation between the battery case 10 and the conductive member 24, and the spacer 23 can be an injection molded piece, a rubber piece, or other structure coated with an insulating coating, or the like. Of course, it is not excluded that the separator 23 may have conductive properties, for example, the conductive member 24 may form an electrical connection with the battery case 10 through the separator 23.

In one embodiment, the insulating protector 30 is attached to the spacer 23, and the insulating protector 30 may be conveniently attached to the spacer 23 without affecting the structure of the conductive member 24.

The insulating protector 30 may be of plastic construction, and the spacer 23 may also be of plastic construction; alternatively, the insulating protector 30 may be a rubber structure, and the spacer 23 may be a rubber structure, and specific materials of the insulating protector 30 and the spacer 23 are not limited herein, and may be selected according to actual requirements on the basis of ensuring reliable insulation.

In one embodiment, the insulating protector 30 is detachably connected to the spacer 23, so that not only can the connection of the insulating protector 30 be facilitated, but also the subsequent maintenance and replacement of the insulating protector 30 can be facilitated, thereby improving the safe service life of the battery.

The insulating protector 30 may be clamped to the spacer 23, for example, the insulating protector 30 and the spacer 23 may be in the form of a convex and concave mating structure, or the insulating protector 30 and the spacer 23 may be in the form of a snap-fit and a snap-fit, or the like. The insulating protector 30 may be bonded to the spacer 23, or the insulating protector 30 may be attached to the spacer 23 by a fastener or the like.

It should be noted that in some embodiments, it is not excluded that the insulating protection 30 may be non-detachably connected to the spacer 23. Insulating protector 30 may also be attached to conductive member 24.

In one embodiment, the battery housing 10 may include two opposing large surfaces and four small surfaces disposed around the large surfaces, the large surfaces having an area greater than the area of the small surfaces, and the post assembly 20 may be disposed on the large surfaces, which may be considered as surfaces where the battery generates more heat.

As shown in fig. 2, the battery case 10 includes two opposite first surfaces 12 and four second surfaces 13 disposed around the first surfaces 12, the first surfaces 12 having an area larger than that of the second surfaces 13, and the post assemblies 20 are disposed on the first surfaces 12. The areas of the two first surfaces 12 may coincide or the areas of the two first surfaces 12 may not coincide, but the difference between them is not large. The areas of the four second surfaces 13 are not limited.

In some embodiments, the number of the electrode post assemblies 20 is two, the two electrode post assemblies 20 are respectively a positive electrode post assembly and a negative electrode post assembly, each electrode post assembly 20 may include two electrode posts for increasing the current capacity of the battery, the number of the electrode lugs of the battery core is also two, the two electrode lugs are respectively a positive electrode lug and a negative electrode lug, the positive electrode post assembly is connected with the positive electrode lug, and the negative electrode post assembly is connected with the negative electrode lug.

It should be noted that, the pole assembly 20 and the battery case 10 may be insulated from each other, for example, the pole assembly 20 and the battery case 10 may be insulated from each other by an insulating member, or may be insulated from each other by an insulating coating, which is not limited herein, and may be selected according to practical requirements. In certain embodiments, it is not excluded that one of the pole assemblies 20 may be electrically connected with the battery housing 10.

In one embodiment, the thickness of the battery case 10 is 0.1mm to 0.5mm, so that the weight of the battery case 10 can be reduced, thereby improving the energy density of the battery. The thickness of the battery case 10 may be 0.1mm, 0.15mm, 0.2mm, 0.25mm, 0.3mm, 0.35mm, 0.4mm, 0.45mm, 0.5mm, or the like.

In one embodiment, the battery case 10 may be made of stainless steel or aluminum, and has good corrosion resistance and sufficient strength. The battery case 10 may be substantially rectangular.

In one embodiment, as shown in fig. 2, the battery case 10 is provided with a recess 11, and the pole assembly 20 is located outside the range of the recess 11, where the recess 11 is used for accommodating the pole assembly of another battery, so that when the batteries are grouped, the pole assembly can be prevented from occupying a larger space, thereby reducing the distance between the batteries, and further improving the space utilization rate of the batteries, and further improving the energy density of the battery pack.

In one embodiment, the recess 11 is disposed on a side of the battery housing 10 facing away from the post assembly 20; the recess 11 is at least partially overlapped with the pole assembly 20 along the orthographic projection on the surface of the pole assembly 20 of the battery housing 10, so that when two adjacent batteries are grouped, the outer edges of the batteries are substantially flush, and the pole assembly of another battery can be effectively contained in the recess 11, thereby improving the grouping efficiency and the space utilization rate of the batteries.

In one embodiment, the battery shell 10 is provided with the recess 11, and the pole assembly 20 is located in the recess 11, so that when the batteries are grouped, the avoidance of the pole assembly 20 is not needed, the grouping of the batteries is realized rapidly, the grouping efficiency of the batteries can be ensured, the space utilization rate of the battery pack is further improved, and the volume energy density of the battery pack is improved.

In one embodiment, the battery further includes a battery cell disposed within the battery housing 10, the battery cell being electrically connected to the pole assembly 20.

The battery includes an electric core and an electrolyte, and is capable of performing a minimum unit of electrochemical reaction such as charge/discharge. The battery cell refers to a unit formed by winding or laminating a stacked portion, wherein the stacked portion comprises a first pole piece, a separator and a second pole piece. When the first pole piece is a positive pole piece, the second pole piece is a negative pole piece. Wherein the polarities of the first pole piece and the second pole piece can be interchanged.

The batteries are laminated batteries, so that the batteries are convenient to group and long in length can be obtained through processing. Specifically, the battery cell is a laminated battery cell, and the battery cell is provided with a first pole piece, a second pole piece opposite to the first pole piece and a diaphragm sheet arranged between the first pole piece and the second pole piece, which are mutually laminated, so that a plurality of pairs of the first pole piece and the second pole piece are stacked to form the laminated battery cell.

Alternatively, the battery may be a wound battery, that is, a first pole piece, a second pole piece opposite to the first pole piece, and a diaphragm sheet disposed between the first pole piece and the second pole piece are wound to obtain a wound battery core.

The battery can be a square battery, namely the battery can be a quadrangular battery, the quadrangular battery mainly refers to a prismatic shape, whether each side of the prismatic is a straight line with strict meaning is not strictly limited, and corners between the sides are not necessarily right angles, and arc transition can be realized. In certain embodiments, it is not excluded that the battery may be a cylindrical battery.

In one embodiment, the length of the cell is e,400 mm.ltoreq.e.ltoreq.2800 mm, the width of the cell is f, the height of the cell is g,2 f.ltoreq.e.ltoreq.80 f, and/or 0.5 g.ltoreq.f.ltoreq.20 g.

Further, f is more than or equal to 80mm and less than or equal to 200mm, g is more than or equal to 10mm and less than or equal to 100mm.

Preferably, 4 f.ltoreq.e.ltoreq.25f, and/or 2 g.ltoreq.f.ltoreq.10g.

The battery in the above embodiment has a large ratio of the length to the width of the battery, and further, a large ratio of the width to the height of the battery, while securing a sufficient energy density.

In one embodiment, the length of the battery is e, the width of the battery is f, and e is not less than 4f and not more than 7f, i.e. the ratio of the length to the width of the battery in the embodiment is larger, so that the energy density of the battery is increased, and the subsequent formation of the battery pack is facilitated.

In one embodiment, the height of the battery is g,3g is less than or equal to f is less than or equal to 7g, the ratio of the width to the height of the battery is large, and the battery is convenient to form under the condition of ensuring enough energy density.

Alternatively, the length of the battery may be 800mm-1800mm, the width of the battery may be 80mm-180mm, and the height of the battery may be 15mm-35mm.

It should be noted that the length of the battery is the dimension of the battery in the length direction, the width of the battery is the dimension of the battery in the width direction, and the height of the battery is the dimension of the battery in the height direction, i.e., the thickness of the battery.

An embodiment of the present utility model also provides a battery pack including the above-described battery.

The battery pack according to one embodiment of the utility model comprises a battery, the battery comprises a battery shell 10, a pole assembly 20 and an insulation protection piece 30, the pole assembly 20 is arranged on the battery shell 10, at least part of the pole assembly 20 is positioned outside the battery shell 10, and the insulation protection piece 30 is arranged on the pole assembly 20, and at least covers the surface of the pole assembly 20, which is away from the battery shell 10, so that the insulation protection piece 30 can play an insulation protection role on the pole assembly 20 when the battery is assembled, and error contact between the pole assembly 20 and adjacent batteries is avoided, thereby improving the safe use performance of the battery pack.

In one embodiment, the battery pack is a battery module or a battery pack.

The battery module includes a plurality of batteries, and the battery module can also include end plate and curb plate, and end plate and curb plate are used for fixed a plurality of batteries.

It should be noted that, a plurality of batteries may be disposed in the battery case after forming the battery module, and may be fixed by the end plate and the side plate. The plurality of cells may be disposed directly in the cell case, i.e., without grouping the plurality of cells, at which time the end plates and the side plates may be removed.

In one embodiment, as shown in fig. 1, the battery pack includes at least two cells, and the battery pack further includes a bus bar 40, and the bus bar 40 connects the at least two cells, thereby implementing series connection or parallel connection between the cells.

The post assembly 20 is disposed at an end of the battery case 10, the bus bar 40 may connect adjacent two batteries, and the bus bar 40 is disposed at an end side of the battery case 10, thereby electrically connecting the bus bar 40 with the post assembly 20.

The bus bar 40 and the post assembly 20 may be welded therebetween.

In one embodiment, as shown in fig. 4, a plurality of batteries are provided, and a recess 11 is provided on one of two adjacent batteries, the recess 11 being for receiving a pole assembly 20 of the other battery; wherein, insulating protection member 30 sets up with the wall face of sunken 11 relatively to open and make insulating protection member 30 can realize the reliable protection to pole subassembly 20, thereby improve the safe performance of group battery.

The pole assembly 20 of one battery can be accommodated in the recess 11 of the other battery, and therefore, the risk of erroneous contact of the pole assembly 20 with the battery case 10 of the other battery can be effectively avoided by providing the insulating protector 30.

It should be noted that, the large surface is opposite to the large surface between adjacent cells of the battery pack, and the recess 11 and the pole assembly 20 are both disposed on the large surface of the cells, so that the space utilization of the battery pack can be improved.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the utility model disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the utility model following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. The specification and example embodiments are to be considered exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (15)

1. A battery, comprising:

a battery case (10);

a pole assembly (20), the pole assembly (20) being disposed on the battery housing (10), and at least a portion of the pole assembly (20) being located outside the battery housing (10);

an insulation protector (30), the insulation protector (30) being disposed on the pole assembly (20) and covering at least a surface of the pole assembly (20) facing away from the battery case (10);

the pole assembly (20) includes:

a separator (23), the separator (23) being provided on the battery case (10);

and a conductive member (24), wherein the conductive member (24) is arranged on the separator (23) so as to be fixed on the battery shell (10) through the separator (23), and the insulating protection member (30) at least covers the surface of the conductive member (24).

2. The battery according to claim 1, wherein the post assembly (20) comprises a first portion (21) and a second portion (22) connected, the first portion (21) being disposed on the battery housing (10), the second portion (22) extending from a side of the first portion (21) remote from the battery housing (10) such that an angle greater than 0 and less than 180 degrees is formed between the first portion (21) and the second portion (22);

wherein the insulating protection (30) covers at least the upper surface (211) of the first portion (21).

3. The battery according to claim 2, characterized in that the insulating protection (30) also covers a side surface (221) of the second portion (22) connected to the upper surface (211).

4. A battery according to claim 3, characterized in that the insulating protection (30) comprises a first section (31) and a second section (32), the first section (31) covering the upper surface (211) and the second section (32) covering the side surface (221);

wherein the top end of the second section (32) is not lower than the top end of the side surface (221).

5. The battery according to any one of claims 2 to 4, wherein the first portion (21) and the second portion (22) are substantially perpendicular.

6. A battery according to any one of claims 2-4, characterized in that the side of the second part (22) facing away from the insulating protection (30) is provided with an electrically conductive connection surface (222).

7. The battery according to claim 6, characterized in that the electrically conductive connection surface (222) is arranged beyond the circumferential outer surface of the battery housing (10) and/or that the electrically conductive connection surface (222) is arranged substantially perpendicular to the surface of the battery housing (10) on which the pole assembly (20) is arranged.

8. The battery according to claim 6, wherein the top end of the insulating protector (30) is not lower than the top end of the conductive connection surface (222).

9. The battery according to claim 1, characterized in that the side of the insulating protection (30) facing away from the pole assembly (20) is provided with a bead (33).

10. The battery according to claim 9, wherein the plurality of ribs (33) are provided, and the plurality of ribs (33) are provided on the insulating protector (30) at intervals.

11. The battery according to claim 1, wherein a top end of the insulating protection member (30) facing away from the battery case (10) is not lower than a top end of the pole assembly (20) facing away from the battery case (10).

12. The battery according to claim 1, characterized in that the insulating protection (30) is connected to the separator (23).

13. The battery according to claim 12, characterized in that the insulating protection (30) is detachably connected to the separator (23).

14. A battery pack comprising the battery of any one of claims 1 to 13.

15. The battery pack according to claim 14, wherein a plurality of the cells are provided, and a recess (11) is provided in one of two adjacent cells, the recess (11) being for receiving a post assembly (20) of the other cell;

wherein the insulating protector (30) is disposed opposite to the wall surface of the recess (11).

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