CN220021192U

CN220021192U - Blade battery, battery pack and vehicle

Info

Publication number: CN220021192U
Application number: CN202320738039.8U
Authority: CN
Inventors: 蔡晨; 张成军; 庄华; 张中林; 周燕飞
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2023-03-29
Filing date: 2023-03-29
Publication date: 2023-11-14
Anticipated expiration: 2033-03-29

Abstract

The embodiment of the utility model discloses a blade battery, a battery pack and a vehicle. The utility model is beneficial to avoiding the installation part by arranging the thinning part on the blade battery to form the groove. The battery pack assembled by the blade battery provided by the utility model has the advantages that the mounting parts such as the bus bars in the battery pack can be contained in the thinned part, so that the battery pack has higher integration level, and the volume of the battery pack is reduced.

Description

Blade battery, battery pack and vehicle

Technical Field

The utility model belongs to the technical field of batteries, and particularly relates to a blade battery, a battery pack and a vehicle.

Background

With the continuous increase of new energy automobile popularization in China, pure electric automobiles with green and environment-friendly characteristics become the necessary trend of future automobile industry development. Wherein, the power source of electric automobile is the battery package.

The battery pack comprises a shell, a mounting part and a plurality of batteries, wherein the batteries and the mounting part are all placed in the shell to be packaged to form the battery pack. However, the integration of the battery pack is low due to the presence of the mounting member, and the entire volume of the battery pack is large.

Disclosure of Invention

The utility model aims to provide a blade battery, a battery pack and a novel technical scheme of a vehicle.

According to a first aspect of the present utility model, there is provided a blade battery comprising a battery body provided with at least one thinned portion forming a recess for receiving a mounting member.

Optionally, the blade battery further includes a pole, and the thinned portion and the pole are separately disposed on two surfaces of the battery body.

Optionally, the thinned portion is configured as a U-shaped structure.

According to a second aspect of the present utility model, there is also provided a battery pack comprising at least two blade batteries according to the first aspect, wherein the thinned portions on adjacent battery bodies communicate and form accommodation spaces.

Optionally, a plurality of the blade cells are arranged side by side along a first direction, and adjacent thinned portions are arranged opposite to each other in the first direction; wherein,

the first direction is a thickness direction of the blade battery.

Optionally, the battery pack further includes a busbar, and one end of the busbar sequentially passes through the thinned portions on the plurality of blade batteries and is disposed in the accommodating space.

Optionally, the receiving space is configured to form a smoke evacuation channel.

Optionally, the battery pack further includes a tray, the blade battery is disposed on the tray, and the thinning portion is disposed on a side of the blade battery away from the tray; or,

the thinning part is arranged on one side of the blade battery, which is close to the tray.

According to a third aspect of the present utility model, there is also provided a vehicle including the battery pack of the second aspect.

The utility model has the technical effects that: the thinning part is arranged on the blade battery to form a groove, so that the mounting part can be avoided. Therefore, in the battery pack assembled by the blade battery, the mounting component such as the busbar in the battery pack can be contained in the thinning part, and the thinning part can be designed into a smoke exhaust channel or the mounting component can be arranged in the groove according to the design requirement of the actual battery pack, so that the battery pack has higher integration level, and the volume of the battery pack is saved.

Other features of the present utility model and its advantages will become apparent from the following detailed description of exemplary embodiments of the utility model, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description, serve to explain the principles of the utility model.

Fig. 1 is a schematic structural diagram of a battery pack according to an embodiment of the present utility model.

Reference numerals illustrate:

1. a blade battery; 11. a battery body; 12. a thinning portion; 13. a pole; 2. a busbar;

01. and a battery pack.

Detailed Description

Various exemplary embodiments of the present utility model will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise.

The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses.

Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

Referring to fig. 1, the present utility model provides a blade battery 1. The blade battery 1 comprises a battery body 11, wherein at least one thinning part 12 is arranged on the battery body 11, the thinning part 12 forms a groove, and the thinning part 12 is used for avoiding mounting components.

Referring to fig. 1, the blade battery 1 includes a battery body 11, and at least one thinned portion 12 is provided on the battery body 11. The battery body 11 is, for example, a rectangular sheet. The thinned portion 12 is provided on the battery body 11, and the thinned portion 12 of the battery body 11 is formed with a groove for avoiding the mounting member.

The thickness of the thinned portion 12 is smaller than the thickness of the battery body 11, for example, in the X direction. The X direction is, for example, the longitudinal direction, the width direction, or the thickness direction of the battery body 11, and the present utility model is not limited to the installation position of the thinned portion 12.

In addition, the present utility model is not particularly limited in the number of thinned portions 12. That is, the battery body 11 may be provided with one thinned portion 12, and of course, two thinned portions 12 or more thinned portions 12 may be provided.

The mounting member is, for example, a structure such as the bus bar 2 or a connection line in the housing.

In the present utility model, the thinned portion 12 is provided on the blade battery 1 to form a groove, thereby facilitating avoidance of the mounting member. Therefore, in the battery pack 01 assembled by the blade battery 1 provided by the utility model, the mounting components such as the bus bar 2 in the battery pack 01 can be contained in the thinning part 12, and of course, the thinning part 12 can also be designed as a smoke exhaust channel, or the mounting components are arranged in the grooves according to the design requirement of the actual battery pack 01, so that the battery pack 01 has higher integration level, and the space of the battery pack 01 is saved.

In this embodiment of the present utility model, the blade battery 1 further includes a post 13, and the thinned portion 12 and the post 13 are disposed on two surfaces of the battery body 11.

Referring to fig. 1, the blade battery 1 further includes a post 13, the post 13 including a positive post 13 and a negative post 13, the positive post 13 and the negative post 13 being disposed at both ends of the blade battery 1, respectively. Preferably, the positive electrode post 13 is disposed opposite to the negative electrode post 13.

The thinned portion 12 and the electrode posts 13 are disposed on two surfaces of the battery body 11, specifically, the blade battery 1 includes six surfaces, wherein the positive electrode posts 13 and the negative electrode posts 13 are disposed on two opposite surfaces of the blade battery 1, and the thinned portion 12 is disposed on any one of the remaining four surfaces.

Preferably, in the present utility model, the thinned portion 12 penetrates the battery body 11 in the thickness direction of the battery.

In the embodiment of the present utility model, the thinned portion 12 is configured as a U-shaped structure.

As shown in fig. 1, the thinned portion 12 includes a side wall and a bottom wall, the side wall and the bottom wall enclose a U-shaped structure, and an opening at one end of the thinned portion 12 is disposed so as to facilitate avoiding the mounting component. The angle between the side wall and the bottom wall is 80-100 °, preferably 90 °, i.e. the side wall is perpendicular to the bottom wall.

By providing the thinned portion 12 in a U-shaped configuration, machining of the thinned portion 12 to form a groove is facilitated.

The utility model also provides a battery pack 01, which comprises at least two blade batteries 1, wherein the thinning parts 12 on the adjacent battery bodies 11 are communicated and form accommodating spaces.

Referring to fig. 1, a battery pack 01 includes at least two blade batteries 1, a plurality of blade batteries 1 are disposed side by side, and thinned portions 12 on adjacent battery bodies 11 communicate and form accommodating spaces for avoiding mounting structures, so as to improve the structural compactness of the battery pack 01 and further reduce the volume of the battery pack 01.

The thinned portions 12 of the adjacent battery bodies 11 are communicated, wherein the thinned portions 12 of the adjacent battery bodies 11 at least partially overlap each other in the stacking direction of the blade battery 1, that is, the thinned portions 12 of the adjacent battery bodies 11 may be all or partially overlapped, so long as the thinned portions 12 of the plurality of battery bodies 11 together form an accommodating space, thereby further realizing avoidance of mounting components in the battery pack 01.

In the present utility model, the specific shape of the accommodation space is formed by stacking the thinned portions 12 on the plurality of battery bodies 11 according to actual needs. Specifically, when all of the thinned portions 12 on the adjacent battery bodies 11 overlap, the accommodation space takes a regular rectangular parallelepiped shape; and when the thinned portions 12 on the adjacent battery bodies 11 partially overlap, the accommodation space is irregularly shaped.

In the embodiment of the present utility model, the plurality of blade batteries 1 are arranged side by side along the first direction, and in the first direction, the adjacent thinned portions 12 are arranged opposite to each other; wherein,

the first direction is the thickness direction of the blade battery 1.

As shown in fig. 1, a plurality of blade cells 1 are arranged side by side in the thickness direction of the blade cells 1, and thinned portions 12 on adjacent cell bodies 11 are arranged opposite to each other in the stacking direction of the blade cells 1. That is, in the stacking direction of the blade cells 1, all of the thinned portions 12 on the adjacent cell bodies 11 overlap.

In the present utility model, the blade battery 1 itself has a thin sheet structure, so that a plurality of blade batteries 1 are stacked in the thickness direction thereof to form the battery pack 01, which is advantageous in improving the energy density of the battery pack 01. In addition, the thinned portions 12 are disposed opposite to each other in the thickness direction of the blade cells 1, so that each blade cell 1 has the same structure and is convenient to process.

In this embodiment of the present utility model, the battery pack 01 further includes a busbar 2, and one end of the busbar 2 sequentially passes through the thinned portions 12 on the plurality of blade batteries 1 and is disposed in the accommodating space.

Referring to fig. 1, the battery pack 01 further includes a bus bar 2, and the bus bar 2 is formed by processing conductive metal. One end of the busbar 2 is electrically connected with the electric core of the blade battery 1, and the other end of the busbar 2 sequentially penetrates through the blade batteries 1 which are arranged side by side and is arranged in the accommodating space formed by the thinning parts 12.

In the battery pack 01 provided by the utility model, the thinned parts 12 are arranged on the blade battery 1, the adjacent thinned parts 12 are communicated to form the accommodating space, and the busbar 2 is arranged in the accommodating space, so that the overall space utilization rate of the battery pack 01 is improved, the volume of the battery pack 01 is reduced, and the integration level of the battery pack 01 is improved.

In an embodiment of the utility model, the accommodation space is configured to form a smoke evacuation channel.

The receiving space may also be used to form a smoke evacuation channel for evacuating gas generated in the battery pack 01 due to thermal runaway of the blade battery 1. The smoke exhausting structure is not needed to be additionally arranged in the battery pack 01, the whole pack space of the battery pack 01 is saved by reducing the structure in the battery pack 01, and the integration level of the battery pack 01 is improved.

In the embodiment of the present utility model, the battery pack 01 further comprises a tray, the blade battery 1 is disposed on the tray, the thinning portion 12 is disposed at a side of the blade battery 1 away from the tray or,

the thinned portion 12 is provided on a side of the blade battery 1 close to the tray.

The battery pack 01 includes a tray in which a space accommodating the blade battery 1 is formed, the blade battery 1 is disposed on the tray, and the tray supports the bottom of the blade battery 1, wherein the thinning portion 12 is disposed on a side of the blade battery 1 away from the tray, that is, the thinning portion 12 is disposed on the top of the blade battery 1. Of course, the thinned portion 12 may be disposed on a side of the blade battery 1 near the tray, that is, the thinned portion 12 is disposed at the bottom of the blade battery 1.

The utility model also provides a vehicle comprising the battery pack 01.

While certain specific embodiments of the utility model have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the utility model. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the utility model. The scope of the utility model is defined by the appended claims.

Claims

1. The blade battery is characterized by comprising a battery body (11), wherein at least one thinning part (12) is arranged on the battery body (11), the thinning part (12) forms a groove, and the thinning part (12) is used for avoiding mounting components.

2. Blade battery according to claim 1, characterized in that it further comprises a pole (13), the thinned portion (12) being provided separately from the pole (13) on both surfaces of the battery body (11).

3. Blade battery according to claim 1, characterized in that the thinned portion (12) is provided in a U-shaped configuration.

4. A battery pack comprising at least two blade batteries (1) according to any one of claims 1 to 3, wherein the thinned portions (12) of adjacent battery bodies (11) communicate and form accommodation spaces.

5. The battery pack according to claim 4, wherein a plurality of the blade cells (1) are arranged side by side in a first direction, and adjacent thinned portions (12) are arranged opposite to each other in the first direction; wherein,

the first direction is the thickness direction of the blade battery (1).

6. The battery pack according to claim 4, further comprising a bus bar (2), wherein one end of the bus bar (2) sequentially passes through the thinned portions (12) on the plurality of blade cells and is disposed in the accommodation space.

7. The battery pack of claim 4, wherein the receiving space is configured to form a smoke evacuation channel.

8. The battery pack according to claim 4, further comprising a tray on which the blade battery (1) is disposed, the thinned portion (12) being disposed on a side of the blade battery remote from the tray, or,

the thinning part (12) is arranged on one side of the blade battery (1) close to the tray.

9. A vehicle characterized by comprising a battery pack (01) according to any one of claims 4-8.