CN219739266U - Battery and battery device - Google Patents

Abstract

The utility model relates to the technical field of batteries, in particular to a battery and a battery device, wherein the battery comprises a shell and a support frame, and a liquid injection hole is formed in the battery shell; the support frame is arranged in the shell, orthographic projection of the support frame on one surface of the shell, provided with the liquid injection hole, at least partially surrounds the liquid injection hole so as to support the cover plate, and a liquid passing hole is formed in the support frame and is communicated with the liquid injection hole. Through the support of support frame to annotating liquid hole peripheral zone on the apron, avoided annotating the not tight problem of liquid hole seal because the apron deformation leads to, promoted the leakproofness of battery.

Description

Battery and battery device

Technical Field

The disclosure relates to the technical field of batteries, and in particular relates to a battery and a battery device.

Background

Battery devices are often provided in electric vehicles for powering the electric vehicles. The battery device can comprise a plurality of batteries, the batteries can comprise a shell and an electric core, the electric core is arranged in the shell, and a liquid injection hole can be formed in the shell of the battery and used for injecting electrolyte into the shell. After the electrolyte is injected into the case, the injection hole needs to be sealed by a sealing member such as a sealing nail. Because the thickness of battery casing is less, consequently the casing easily takes place deformation around annotating the liquid hole, leads to annotating the liquid hole sealed not tight.

It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the present disclosure and thus may include information that does not constitute prior art known to those of ordinary skill in the art.

Disclosure of Invention

An object of the present disclosure is to provide a battery and a battery device, and further to improve the sealing performance of the battery at least to some extent.

According to one aspect of the present disclosure, there is provided a battery including:

the shell is provided with a liquid injection hole;

the support frame, the support frame is located in the casing, and the support frame is in the casing sets up orthographic projection on the face of annotating the liquid hole is at least partly encircleed annotate the liquid hole, in order to support the casing, be provided with the via hole on the support frame, the via hole with annotate the liquid hole intercommunication.

Wherein, the thickness of the shell body on one surface where the liquid injection hole is arranged is less than or equal to 0.8mm.

The battery that this disclosed embodiment provided, including casing and support frame, be provided with the notes liquid hole on the casing, in the casing was located to the support frame to the orthographic projection of support frame on the casing is partly encircleed the notes liquid hole at least, has realized through the support frame to the support of the peripheral region of notes liquid hole on the apron, has avoided the not tight problem of notes liquid hole seal because the apron deformation leads to, has promoted the leakproofness of battery.

According to another aspect of the present disclosure, there is provided a battery device including the above battery.

The battery device that this disclosed embodiment provided includes the battery, is provided with the notes liquid hole on the casing in the battery, and in the casing was located to the support frame to the orthographic projection of support frame on the casing is partly encircleed the notes liquid hole at least, has realized through the support frame to the support of the peripheral region of notes liquid hole on the apron, has avoided the not tight problem of notes liquid hole seal because the apron deformation leads to, has promoted the leakproofness of battery.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without undue effort.

Fig. 1 is a cross-sectional view of a battery provided in an exemplary embodiment of the present disclosure;

fig. 2 is a partial enlarged view of a battery provided in an exemplary embodiment of the present disclosure;

fig. 3 is a schematic structural view of a support frame according to an exemplary embodiment of the present disclosure;

fig. 4 is a cross-sectional view of another battery provided in an exemplary embodiment of the present disclosure;

fig. 5 is a schematic view of a battery device according to an exemplary embodiment of the present disclosure.

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.

The exemplary embodiment of the present disclosure first provides a battery 100, as shown in fig. 1 to 3, including a housing 10 and a support frame 20, wherein a liquid injection hole 101 is provided on the housing 10; the support frame 20 is arranged in the shell 10, and the orthographic projection of the support frame 20 on the surface of the shell 10 provided with the liquid injection hole 101 at least partially surrounds the liquid injection hole 101 to support the cover plate 11, and the support frame 20 is provided with a liquid through hole 201, and the liquid through hole 201 is communicated with the liquid injection hole 101.

The battery 100 provided by the embodiment of the disclosure comprises a casing 10 and a support frame 20, wherein a liquid injection hole 101 is formed in the casing 10, the support frame 20 is arranged in the casing 10, and the orthographic projection of the support frame 20 on the casing 10 at least partially surrounds the liquid injection hole 101, so that the support of the support frame 20 to the peripheral area of the liquid injection hole 101 on the cover plate 11 is realized, the problem that the liquid injection hole 101 is not tightly sealed due to deformation of the cover plate 11 is avoided, and the tightness of the battery 100 is improved.

Further, as shown in fig. 4, the battery 100 provided in the embodiment of the disclosure may further include a battery cell 40 and a pole 50, where the battery cell 40 is disposed in the battery 100 housing 10, the battery cell 40 includes a battery cell main body 41 and a pole lug 42, and the pole lug 42 is disposed at an end portion of the battery cell main body 41. The pole 50 is provided on the housing 10, and the pole 50 is connected to the tab 42, and the thickness of one surface of the housing 10 provided with the liquid injection hole 101 is 0.8mm or less.

The following will describe in detail the respective portions of the battery 100 provided by the embodiments of the present disclosure:

the case 10 serves to form the outer contour of the battery 100 and protect the devices within the case 10. The housing 10 may include a housing main body 12 and a cover plate 11, and the housing main body 12 and the cover plate 11 are connected to form a receiving chamber. The battery cell 40, the support frame 20, electrolyte and the like are arranged in the accommodating cavity.

By way of example, the battery 100 in the embodiments of the present disclosure may be of a rectangular or nearly rectangular configuration. On the other hand, the housing 10 has a rectangular or nearly rectangular structure. The housing 10 may include two oppositely disposed first surfaces and four second surfaces located between the first surfaces, the first surfaces having an area greater than an area of the second surfaces. The cover plate 11 forms one first surface of the housing 10, and the opposite side of the housing main body 12 from the cover plate 11 forms the other first surface.

The cover plate 11 and the case body 12 are welded to form a closed accommodating cavity. For example, the cover plate 11 and the case main body 12 may be connected by welding. In order to facilitate the connection between the cover plate 11 and the case body 12, a flange protruding from the second surface of the case 10 may be provided on the cover plate 11 and/or the case body 12, and the flange may be welded during welding, so that the welding is facilitated, and the high temperature damage to the battery cell 40 during the welding can be avoided. Of course, in practical applications, flanges may not be provided on the cover plate 11 and the housing main body 12, which is not limited to the embodiment of the disclosure.

In a possible embodiment, the cover plate 11 may be a flat plate structure, and the case body 12 is provided with a receiving recess. The shell body 12 may include an end plate and a frame, where the end plate and the cover plate 11 are disposed opposite to each other, the frame is disposed on a side of the end plate facing the cover plate 11, the frame and the end plate are connected to form a receiving recess, and the cover plate 11 is covered on a side of the frame away from the end plate to form a sealed receiving cavity.

When a flange is provided around the housing 10, the housing body 12 may further include a flange provided on a side of the rim remote from the end panel, and the flange extends to the outside of the rim. The flange is welded to the edge of the cover plate 11 to form a flange on the housing 10.

In another possible embodiment, the cover plate 11 and the shell body 12 may be provided with accommodating pits, and when the cover plate 11 and the shell body 12 are buckled, the accommodating pits jointly form an accommodating cavity of the shell 10.

The cover plate 11 includes a first panel and a first frame, and the first frame is disposed on a surface of the first panel facing the case main body 12. The case main body 12 includes a second panel and a second frame, the second frame is disposed on a surface of the second panel facing the cover plate 11, and the first frame and the second frame are welded to form a sealed accommodating cavity.

When the flange is disposed around the housing 10, the cover 11 further includes a first flange, where the first flange is disposed at an end of the first frame away from the first panel, and the first flange extends outwards. The case body 12 further includes a second flange provided at one end of the second frame away from the second panel, and the second flange extends outward. The first flange and the second flange are welded to form a flange on the housing 10.

In the embodiment of the present disclosure, the thickness of the cover plate 11 is equal to or less than 0.8mm, for example, the thickness of the cover plate 11 may be 0.8mm, 0.7mm, 0.6mm, 0.5mm, 0.3mm, 0.1mm, or the like. The liquid injection hole 101 is formed in the cover plate 11, and because the thickness of the cover plate 11 is relatively thin, when the liquid injection hole 101 is sealed by the sealing nail, the sealing nail may deform the cover plate 11 around the liquid injection hole 101 when entering the liquid injection hole 101, and then a gap exists between the cover plate 11 and the sealing nail during welding, so that the tightness of the battery 100 is relatively poor. In order to solve this problem, a support frame 20 is provided in the battery 100 case 10, and the cover 11 is supported by the support frame 20, so that the risk of deformation of the cover 11 is reduced.

The battery cell 40 includes a battery cell body 41 and a tab 42, and the tab 42 is provided at an end of the battery cell body 41. For example, tabs 42 may be provided at both ends of the cell body 41 in the length direction, respectively. One end of the battery cell main body 41 is provided with a first tab, and the other end of the battery cell main body 41 is provided with a second tab. One of the first tab and the second tab is a positive tab 42, and the other of the first tab and the second tab is a negative tab 42.

It should be noted that, the battery core main body 41 includes more than two pole pieces, the tab 42 includes more than two single-piece tabs, the single-piece tabs extend from the corresponding pole pieces, the width of the single-piece tabs is smaller than that of the pole pieces, and the plurality of single-piece tabs are stacked to form the tab 42 and connected with the pole 50, where the tab 42 can be welded with the pole 50. Wherein the single tab is made of a metal foil having good electrical and thermal conductivity, such as aluminum, copper, or nickel.

The cells 40 in the disclosed embodiments may be coiled cells or laminated cells. The battery cell 40 is a laminated battery cell, and the battery cell 40 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, so that a plurality of pairs of the first pole piece and the second pole piece are stacked to form a laminated battery cell. The battery cell 40 may be a winding type battery cell, 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 winding type battery cell.

The pole 50 is provided to the housing 10, and the pole 50 is connected to the battery cell 40. By way of example, the post 50 may include a post, a first connection end and a second connection end, a through hole may be provided in the housing 10, the post is penetrated through the through hole, the first connection end is connected with the post, and the first connection end is located outside the housing 10, the first connection end is used to connect an external conductive device (e.g., a bus bar). The second connection end is connected to the post, and the second connection end is located inside the housing 10 and is connected to the tab 42. The second connection end and the tab 42 may be welded, or the second connection end and the tab 42 may be connected by an adapter.

In a possible embodiment, the pole 50 may be provided on the cover plate 11, and the first pole and the second pole are provided at the ends of the cover plate 11 near the length direction, respectively. The first pole is connected with the first pole lug, and the second pole is connected with the second pole lug. One of the first and second poles is a positive pole 50 and the other of the first and second poles is a negative pole 50.

The cover plate 11 is provided with a liquid injection hole 101, the support frame 20 is arranged inside the shell 10, and the orthographic projection of the support frame 20 on the cover plate 11 at least partially surrounds the liquid injection hole 101. That is, the support frame 20 supports at least a partial region around the pouring hole 101.

The front projection area of the support frame 20 on the cover plate 11 may cover the liquid injection hole 101, and the area of the front projection area of the support frame 20 on the cover plate 11 is larger than the area of the liquid injection hole 101, so as to support the support frame 20 for one week of the liquid injection hole 101.

One surface of the support frame 20 facing the cover plate 11 is abutted against the cover plate 11, and one surface of the support frame 20 away from the cover plate 11 is abutted against the surface of the shell main body 12 opposite to the cover plate 11. The support of the battery 100 in the thickness direction is realized by the support frame 20, and the deformation of the battery 100 in the thickness direction is avoided.

In some embodiments, the electrode posts 50 are provided on the cover plate 11, and in order to avoid interference between the electrode posts 50 of adjacent cells 100 when the cells 100 are stacked, a recess for accommodating the electrode posts 50 of adjacent cells 100 when the cells 100 are stacked is provided on a side of the cells 100 facing away from the electrode posts 50. The post 50 is provided at the end of the cover plate 11 in the longitudinal direction, and the recess is provided at the end of the case main body 12 in the longitudinal direction.

Since the recess is provided at the end of the case body 12 in the longitudinal direction, a thinned region is formed at the end of the battery 100 in the longitudinal direction, the battery cell body 41 is not provided in the thinned region, and the tab 42 extends from the battery cell body 41 to the thinned region. The liquid injection hole 101 on the cover plate 11 is located in the projection area of the thinning area on the cover plate 11, so that the supporting frame 20 is also arranged in the housing 10 at a position corresponding to the thinning area.

The cover plate 11 is provided with a supporting area 102, the supporting area 102 at least partially surrounds the liquid injection hole 101, and the distance between the supporting area 102 and the supporting frame 20 is less than or equal to 0.5mm. By way of example, the support region 102 may surround the pouring orifice 101.

Wherein, the supporting area 102 is provided with a first recess 103, and a distance between a surface of the first recess 103 facing the supporting frame 20 and the supporting frame 20 is less than or equal to 0.5mm. For example, the first recess 103 may be located at a distance of 0.5mm, 0.4mm, 0.3mm, or 0.1mm from the support 20 on the side facing the support 20. The support 20 is provided with a second recess 202, and the orthographic projection of the first recess 103 on the support 20 is located within the range of the second recess 202.

The distance between the surface of the first recess 103 facing the support frame 20 and the support frame 20 is less than or equal to 0.5mm, so that the deformation generated by the bottom wall of the first recess 103 is small, the large deformation generated by the bottom wall of the first recess 103 when the bottom wall is connected with a sealing nail is avoided, the manufacturing precision is considered, and the production cost of the battery 100 is effectively controlled.

The liquid injection hole 101 in the embodiment of the disclosure may be a stepped hole on the cover plate 11, where the stepped liquid injection hole 101 includes a first hole section and a second hole section, the first hole section is connected with the cover plate 11 (the first recess 103 forms the first hole section), the second hole section is located at an end of the first hole section away from the cover plate 11, and an area of the first hole section is larger than an area of the second hole section.

The sealing pin is connected to the liquid filling hole 101 to seal the liquid filling hole 101. The sealing nail can comprise a nail body and a nail cap, wherein the nail body stretches into the second hole section of the liquid injection hole 101, the nail cap is positioned on the first hole section (the first concave 103) of the liquid injection hole 101, and the nail cap and the cover plate 11 are welded to realize sealing of the liquid injection hole 101.

The support frame 20 is provided with a liquid through hole 201, and the liquid through hole 201 is communicated with the liquid injection hole 101. The area of the liquid passing hole 201 is larger than or equal to the area of the liquid injection hole 101, and the projection of the liquid passing hole 201 on the cover plate 11 is at least partially overlapped with the liquid injection hole 101. For example, the filling port 101 may be embedded in the through-hole 201. When the liquid injection hole 101 includes a first hole section and a second hole section, the area of the liquid passing hole 201 is larger than the area of the second hole section, and the second hole section is embedded in the liquid passing hole 201.

The through hole 201 and the injection hole 101 may be circular holes, and the through hole 201 and the injection hole 101 are not coaxially arranged at this time. Of course, in practical applications, the embodiment of the disclosure is not limited to the above, and the liquid through hole 201 and the liquid injecting hole 101 may be square holes or elliptical holes.

Electrolyte enters the battery 100 case 10 through the filling hole 101 and the through-hole 201, and the electrolyte needs to infiltrate the battery cell 40, so that the electrolyte needs to be guided to the battery cell body 41 through the support frame 20. In order to guide the electrolyte to the cell body 41, the support 20 is disposed at the end of the cell 40, the support 20 is provided with a liquid guiding cavity, the liquid guiding cavity is communicated with the liquid through hole 201, and a liquid guiding opening 203 is formed on one side of the liquid guiding cavity facing the cell 40.

The support frame 20 may include a support plate 21, a liquid-bearing plate 22 and a connection portion 23, where the support plate 21 is opposite to the cover plate 11, and the support plate 21 is provided with a liquid-passing hole 201; the liquid bearing plate 22 is arranged on one side of the supporting plate 21 far away from the cover plate 11, and a gap is formed between the liquid bearing plate 22 and the supporting plate 21; the connecting portion 23 is disposed between the support plate 21 and the liquid-carrying plate 22, and the connecting portion 23, the support plate 21 and the liquid-carrying plate 22 enclose a liquid-guiding cavity, and a liquid-guiding opening 203 is disposed on a surface of the connecting portion 23 facing the battery cell 40.

The connection part 23 may have a ring structure, and the support plate 21 and the liquid-receiving plate 22 are respectively positioned at both sides of the connection part 23 to form a cavity inside the support frame 20, the cavity being communicated with the liquid-passing hole 201, and the electrolyte entering the cavity through the liquid-passing hole 201. The connecting portion 23 is provided with the opening towards the one end of electric core main part 41, and the cavity of support frame 20 is through this drain opening 203 and electric core 40 intercommunication, and the electrolyte flows to electric core main part 41 through drain opening 203 in the support frame 20, realizes the infiltration of electrolyte to electric core 40.

Further, in order to realize insulation between the pole 50 and the housing 10, and between the tab 42 and the housing 10 in the battery 100, the battery 100 provided in the embodiment of the disclosure may further include an insulation frame 30, where the insulation frame 30 is disposed in the housing 10, the insulation frame 30 is used for insulation between the housing 10 and the pole 50, and the support frame 20 is connected with the insulation frame 30.

Wherein, part of the insulating frame 30 can be positioned between the housing 10 and the pole 50 to realize the insulation of the housing 10 and the pole 50. The insulating frame 30 is partially positioned between the tab 42 and the housing 10, and realizes insulation between the housing 10 and the tab 42. The insulating frame 30 may include a base provided to the cover plate 11 and a pressing plate provided opposite to the base.

The base can be provided with a protruding portion on one side facing the cover plate 11, the protruding portion extends into a through hole of the cover plate 11 where the pole 50 is arranged, and the pole 50 is arranged on the protruding portion in a penetrating manner, that is, the pole 50 is separated from the cover plate 11 through the protruding portion on the base, so that insulation between the shell 10 and the pole 50 is achieved.

The pressing plate and the base are oppositely arranged, a gap is reserved between the pressing plate and the base, and the lug 42 extends into the gap between the pressing plate and the base, so that insulation between the lug 42 and the shell 10 is realized. The post 50 may extend through the base, i.e., the post 50 extends into the gap between the base and the platen, where the post 50 is connected to the tab 42. The pressing plate and the base can be connected in a clamping manner.

The support 20 is connected to the end of the base, and the support 20 is located at the side of the tab 42. The thickness of the support frame 20 may be greater than the thickness of the base, and a side of the support frame 20 facing the cover plate 11 may be flush with a side of the base facing the cover plate 11. The side of the platen remote from the cover plate 11 may be flush with the side of the support frame 20 remote from the cover plate 11.

The support frame 20 and the insulating frame 30 are an integrally formed structure. For example, the material of the supporting frame 20 and the insulating member is plastic or rubber, and the supporting frame 20 and the insulating frame 30 may be integrally formed by injection molding. Or when the material of the supporting frame 20 and the insulating frame 30 is ceramic, the supporting frame 20 and the insulating member may be integrally formed by sintering. Of course, in practical applications, the supporting frame 20 and the insulating frame 30 may also be in a split molding structure, for example, the supporting frame 20 and the insulating frame 30 may be connected by glue connection or clamping connection, which is not limited in this embodiment.

The battery 100 provided by the embodiment of the disclosure comprises a shell 10 and a support frame 20, wherein a liquid injection hole 101 is formed in a cover plate 11 of the shell 10, the support frame 20 is arranged in the shell 10, and the orthographic projection of the support frame 20 on the cover plate 11 at least partially surrounds the liquid injection hole 101, so that the support of the support frame 20 on the peripheral area of the liquid injection hole 101 on the cover plate 11 is realized, the problem that the liquid injection hole 101 is not tightly sealed due to deformation of the cover plate 11 is avoided, and the tightness of the battery 100 is improved.

The exemplary embodiments of the present disclosure also provide a battery device, as shown in fig. 5, including a battery 100. The battery comprises a shell 10 and a support frame 20, wherein the shell 10 of the battery 100 is provided with a cover plate 11, and a liquid injection hole 101 is formed in the cover plate 11; the support frame 20 is arranged in the shell 10, and the orthographic projection of the support frame 20 on the cover plate 11 at least partially surrounds the liquid injection hole 101 so as to support the cover plate 11, and the support frame 20 is provided with a liquid through hole 201, and the liquid through hole 201 is communicated with the liquid injection hole 101.

The battery device may be a battery pack, a battery module, a battery pack, or the like. The battery pack includes a plurality of sequentially arranged batteries 100, and when the plurality of batteries 100 are arranged, large surfaces of adjacent batteries 100 are opposed. The battery module may include a battery pack and end plates (end insulating plates) provided at ends of the battery pack in the arrangement direction of the batteries 100, the end plates being provided at both ends of the battery pack, respectively.

The battery pack may include a case 200 and a plurality of batteries 100, the case 200 including a base plate 210 and a structural beam 220, the structural beam 220 being connected to the base plate 210 to form one or more battery 100 compartments, the batteries 100 being disposed in the battery 100 compartments. The bottom plate 210 is used for supporting the battery 100, and the structural beams 220 are used for limiting the battery 100.

A plurality of stacked cells 100 may be provided in the battery 100 compartment, the large surfaces of adjacent cells 100 being opposite when the plurality of cells 100 are stacked, and the small surfaces of the cells 100 in the length direction being opposite to the bottom plate 210. The plurality of cells 100 in the battery 100 compartment may be electrically connected (in series or in parallel) by a bus bar that is provided on the side of the plurality of cells 100, and the bus bar is welded to the poles 50 of the cells 100.

The battery device provided by the embodiment of the disclosure includes a battery 100, a liquid injection hole 101 is formed in a cover plate 11 of a housing 10 in the battery 100, a support frame 20 is arranged in the housing 10, and orthographic projection of the support frame 20 on the cover plate 11 at least partially surrounds the liquid injection hole 101, so that the support of the support frame 20 on the peripheral area of the liquid injection hole 101 on the cover plate 11 is realized, the problem of loose sealing of the liquid injection hole 101 caused by deformation of the cover plate 11 is avoided, and the tightness of the battery 100 is improved.

The battery device provided by the embodiment of the disclosure can be applied to an electric vehicle, and when the battery device is used for the electric vehicle, the battery device can be a battery pack which is installed on the electric vehicle and provides energy for the electric vehicle.

In practice, the battery pack may be mounted to the frame of an electric vehicle. The battery pack can be fixedly connected with the frame. Or the battery pack can be a modularized battery pack which can be detachably connected to the vehicle body, so that the battery pack is convenient to replace.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure 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. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims (12)

1. A battery, the battery comprising:

the shell is provided with a liquid injection hole;

the support frame is arranged in the shell, orthographic projection of the support frame on the surface of the shell, on which the liquid injection hole is arranged, at least partially surrounds the liquid injection hole so as to support the shell, and a liquid passing hole is formed in the support frame and is communicated with the liquid injection hole;

wherein, the thickness of the shell body on one surface where the liquid injection hole is arranged is less than or equal to 0.8mm.

2. The battery of claim 1, wherein the housing includes a cover plate, and the liquid injection hole is provided in the cover plate.

3. The battery of claim 2, wherein a support area is provided on the cover plate, the support area at least partially surrounds the liquid injection hole, and a distance between the support area and the support frame is less than or equal to 0.5mm.

4. A battery according to claim 3, wherein the support region is provided with a first recess, the first recess facing the support frame being at a distance of 0.5mm or less from the support frame.

5. The battery of claim 4, wherein the support bracket is provided with a second recess, and wherein an orthographic projection of the first recess on the support bracket is positioned within the second recess.

6. The battery of claim 2, wherein the battery further comprises:

the battery cell, the battery cell is located in the casing, and the support frame is located the tip of battery cell, be provided with the liquid guide chamber on the support frame, the liquid guide chamber with the through-hole intercommunication, the liquid guide chamber orientation one side of battery cell has the drain opening.

7. The battery of claim 6, wherein the support bracket comprises:

the supporting plate is opposite to the cover plate, and the liquid passing holes are formed in the supporting plate;

the liquid bearing plate is arranged on one side of the supporting plate, which is far away from the cover plate, and a gap is formed between the liquid bearing plate and the supporting plate;

the connecting portion is arranged between the supporting plate and the liquid bearing plate, the connecting portion, the supporting plate and the liquid bearing plate enclose the liquid guide cavity, and one face of the connecting portion, facing the battery cell, is provided with the liquid guide opening.

8. The battery of claim 6, wherein the battery further comprises:

the pole is arranged on the cover plate;

the insulation frame is arranged in the shell, and is used for insulation of the shell, the pole and the battery cell, and the support frame is connected with the insulation frame.

9. The battery of claim 8, wherein the support frame and the insulating frame are of an integrally formed construction.

10. The battery of claim 1, wherein the area of the liquid passage hole is equal to or greater than the area of the liquid injection hole.

11. The battery of claim 1, wherein the fluid passage and the fluid injection hole are not coaxially disposed.

12. A battery device, characterized in that it comprises a battery according to any one of claims 1-11.