Battery and battery pack

Abstract

The utility model provides a battery and a battery pack, the battery comprises a shell, a cell body and two adapters, the shell is provided with two plate sections which are oppositely arranged, the plate sections are output poles, the cell body is arranged in the shell, the cell body is provided with a positive pole lug and a negative pole lug, and the positive pole lug and the negative pole lug are arranged in the shell. The positive electrode lug is electrically connected with one output electrode through one adapter, and the negative electrode lug is electrically connected with the other output electrode through the other adapter. According to the battery provided by the utility model, the adapter is arranged in the shell, and the positive and negative tabs of the battery are electrically connected with the output electrodes on the shell through the adapter, so that the adjacent batteries can be electrically connected directly through contact of the output electrodes when the batteries are stacked, a chip structure does not need to be arranged, and the connection structure between the batteries is optimized; therefore, the problem that in the prior art, when batteries form a battery pack, electric connection needs to be achieved through a chip structure, and consequently the overall structure is complex is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of battery related structure, specifically, relate to a battery and battery pack. BACKGROUND

[0002] The battery is widely used in mobile phone, computer, electric tool and power automobile field, and with the development of battery technology, the overall structure of the battery is optimized.

[0003] At present, the battery in the prior art includes a shell, a top cover and a battery cell, the top cover is arranged at the opening of the shell to form a containing space for containing the battery cell, the battery cell has a tab extending therefrom, the top cover is provided with a pole, and the tab and the pole are electrically connected. When the battery is arranged in this way, for the battery pack formed by connecting multiple batteries, the poles of the multiple batteries are usually electrically connected, and the poles of the multiple batteries are electrically connected through a tab, the tab occupies a certain space, increases the complexity of the structure and the complexity of the disassembly operation, and the setting of the tab also increases the resistance and affects the performance of the battery pack.

[0004] As can be seen from the above, the existing design structure of the battery in the prior art causes the problem of complex overall structure when the battery pack is formed through the tab structure. UTILITY MODEL CONTENTS

[0005] The main purpose of the utility model is to provide a battery and a battery pack to solve the problem of complex overall structure caused by the need for electrical connection through the tab structure when the battery in the prior art forms a battery pack.

[0006] In order to achieve the above purpose, according to one aspect of the utility model, a battery is provided, the battery includes a shell, a battery cell body and two adapters, the shell has two plate segments arranged oppositely, the plate segment is an output pole, the battery cell body is arranged inside the shell, the battery cell body has a positive tab and a negative tab, the positive tab is electrically connected to one of the output poles through one of the adapters, and the negative tab is electrically connected to the other output pole through the other adapter.

[0007] Further, the first end of the adapter is electrically connected to the positive tab or the negative tab, the second end of the adapter has a conductive plate arranged in close contact with the output pole, and the conductive plate is electrically connected to the output pole.

[0008] Further, the conductive plate is arranged between the output pole and the battery cell body in the thickness direction of the shell; and / or the projection of the conductive plate on the output pole is located inside the output pole area.

[0009] Further, the positive and negative tabs are arranged on the top surface of the cell body, the first end has a connecting plate, the conductive plate and the connecting plate are arranged in a bent manner, and the connecting plate is electrically connected with the positive or negative tab.

[0010] Further, the battery further comprises an elastic member, the elastic member abuts between the conductive plate and the cell body along the thickness direction of the shell, and the elastic member is used for providing driving force for keeping the conductive plate and the output pole in close contact.

[0011] Further, the two oppositely arranged plate segments are two oppositely arranged large surfaces of the shell, or the two oppositely arranged plate segments are two oppositely arranged narrow surfaces of the shell, or the two oppositely arranged plate segments are oppositely arranged bottom and top surfaces of the shell.

[0012] Further, the shell comprises an outer frame, an insulating connecting piece and an output pole, the outer frame is open at both ends along the thickness direction of the shell, the output pole is connected with the outer frame through the insulating connecting piece, and the output pole shields the opening.

[0013] Further, the insulating connecting piece is made of ceramic material, and / or the opening side of the outer frame is provided with a welding frame arranged along the circumference of the opening, and the insulating connecting piece is welded and fixed with the welding frame and the output pole.

[0014] According to another aspect of the present application, a battery pack is provided, the battery pack comprising a plurality of batteries, the batteries being the above-mentioned batteries, and the plurality of batteries being stacked along the thickness direction of the shell of the battery, and the output poles of the shells of the adjacent two batteries being electrically connected in close contact.

[0015] Further, the battery pack further comprises a shell, and the plurality of batteries are arranged in the interior of the shell.

[0016] The technical scheme of the present application is applied to the battery, the battery comprises a shell, a cell body and two adapter pieces, the shell has two plate segments arranged oppositely along the thickness direction, the plate segments are output poles, the cell body is arranged in the interior of the shell, the cell body has positive and negative tabs, the positive tab is electrically connected with one of the output poles through one of the adapter pieces, and the negative tab is electrically connected with the other output pole through the other adapter piece.

[0017] As known from the above, the battery of the present application is provided with the adapter pieces in the interior of the shell, the positive and negative tabs of the battery are electrically connected with the output poles of the shell through the adapter pieces, and the output poles of the shell of the battery are used for realizing electrical connection between the adjacent batteries.

[0018] The application adopts the connection piece arranged in the inside of the shell and the part (output pole) of the shell itself for electrical connection, the overall structure is simple, and the battery formed by the application is only electrically connected by stacking, the overall structure is simple, convenient to disassemble and assemble, and the assembly efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] The drawings accompanying the specification of the application form a part of the application and serve to provide further understanding of the application. The illustrative embodiments of the application and its description serve to explain the application. In the drawings:

[0020] Figure 1 A perspective structural schematic view of the battery of the application is shown;

[0021] Figure 2 A structural schematic view of the shell of the application is shown;

[0022] Figure 3 A top view of the battery of the application is shown;

[0023] Figure 4 A sectional view of A-A in Figure 3 is shown;

[0024] Figure 5 An exploded view of the connection structure of the battery core body, elastic piece and adapter piece of the application is shown.

[0025] Among them, the above-mentioned drawings include the following reference signs:

[0026] 10, shell; 110, outer frame; 111, welded frame; 120, insulating connecting piece; 130, output pole; 20, battery core body; 30, adapter piece; 310, connecting plate; 320, conductive plate; 40, elastic piece. DETAILED DESCRIPTION

[0027] It should be noted that the embodiments in the application and the features in the embodiments can be combined with each other without conflict. The application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in the application have the same meaning as generally understood by those skilled in the art to which the application belongs.

[0029] In the utility model, in the case where no opposite statement is made, the orientation words such as ''up, down, top, bottom'' used are usually directed to the direction shown in the drawing, or directed to the vertical, perpendicular or gravity direction of the component itself; similarly, for the convenience of understanding and description, ''inner, outer'' refers to the inner and outer relative to the contour of each component itself, but the above orientation words are not used to limit the utility model.

[0030] Embodiment one

[0031] In order to solve the problem that the battery needs to realize electrical connection through the tab structure when forming a battery pack in the prior art, thereby causing the overall structure to be complex, the embodiment provides a battery.

[0032] As Figures 1 to 5 shown, the battery comprises a shell 10, a battery core body 20 and two adapters 30, the shell 10 has two oppositely arranged plate segments, the plate segment is an output pole 130, the battery core body 20 is arranged in the interior of the shell 10, the battery core body 20 has a positive pole lug and a negative pole lug, the positive pole lug is electrically connected with one of the output poles 130 through one of the adapters 30, and the negative pole lug is electrically connected with the other output pole 130 through the other adapter 30.

[0033] The output pole 130 is used to realize electrical connection between the output poles 130 of adjacent batteries through contact.

[0034] Specifically, the battery of the application realizes electrical connection with the output poles 130 on the shell 10 through the adapters 30 arranged in the interior of the shell 10, and the output poles 130 on the shell 10 of the battery are used to realize electrical connection between adjacent batteries, the structure of the battery of the application can realize conduction directly through contact when the batteries are stacked, and it is not necessary to arrange the tab structure, thereby optimizing the connection structure between the batteries.

[0035] Further, the two oppositely arranged plate segments are two oppositely arranged large faces of the shell 10, or the two oppositely arranged plate segments are two oppositely arranged narrow faces of the shell 10, or the two oppositely arranged plate segments are a bottom face and a top face of the shell 10.

[0036] It should be noted that the shell 10 is usually a hollow rectangular cavity, wherein the shell 10 has a top face and a bottom face arranged oppositely, two narrow faces arranged oppositely and two large faces arranged oppositely; wherein: the top face of the shell 10 is the surface of the shell 10 facing the battery core body 20 on which the positive pole lug and the negative pole lug are protruded, that is, in the perspective view shown in the drawing, the top face of the shell 10 is Figure 4 Figure 4 ​The upper surface of the middle shell; the two narrow surfaces of the shell 10 are the two sides with the smallest surface area of the shell 10, except for the top surface and the bottom surface of the shell 10; the two large surfaces of the shell 10 are the two sides with the largest surface area of the shell 10, and the two large surfaces of the shell 10 are the two surfaces arranged opposite along the X direction. Figure 1 The two large surfaces of the shell 10 are the two surfaces arranged opposite along the X direction.

[0037] Preferably, the two oppositely arranged plate segments are the two oppositely arranged large surfaces of the shell 10. In this embodiment, the two output poles 130 arranged along the thickness direction of the shell 10 are plate segments on which the two large surfaces of the rectangular shell 10 are located, i.e., the surface of the output pole 130 is a large surface of the shell 10. The present application uses the output pole 130 of the shell 10 to realize electrical connection between the batteries, and relative to the top surface or the narrow surface of the shell 10, the large surface of the shell 10 has a larger contact surface, which is more conducive to reducing the contact impedance between the batteries, thereby improving the overall performance and service life of the battery pack.

[0038] The present application uses a connecting piece arranged inside the shell 10 and uses a part of the shell 10 itself for electrical connection, and the overall structure is simple, and the battery pack formed by the batteries of the present application is only electrically connected by stacking, and the overall structure is simple, convenient to disassemble and assemble, and conducive to improving the assembly efficiency.

[0039] As shown in Figures 1 to 4 The shell 10 includes an outer frame 110, an insulating connecting piece 120, and an output pole 130, the outer frame 110 forms an opening at both ends along the thickness direction of the shell 10, the output pole 130 is connected to the outer frame 110 through the insulating connecting piece 120, and the output pole 130 blocks the opening.

[0040] Specifically, the outer frame 110, the insulating connecting piece 120, and the output pole 130 cooperatively form a receiving cavity, the receiving cavity is a sealed cavity, the battery body 20 and the adapter 30 are arranged inside the receiving cavity, and the shell 10 has the effect of protecting the battery body 20, thereby improving the safety and stability of the battery in use. The output pole 130 is made of conductive material and is used for electrical connection, and the insulating connecting piece 120 is arranged between the outer frame 110 and the output pole 130 to achieve the effect of insulation, i.e., the output pole 130 is electrified in the battery, and the insulating connecting piece 120 is not electrified.

[0041] The insulating connecting piece 120 can be made of ceramic material.

[0042] In the embodiment, the opening side of the outer frame 110 is provided with a welding frame 111 arranged along the circumference of the opening, the insulating connecting piece 120 is welded and fixed with the welding frame 111 and the output pole 130, the insulating connecting piece 120 is also annular structure and matched with the welding frame 111, the welding frame 111 is welded and fixed with the insulating connecting piece 120, the insulating connecting piece 120 is welded and fixed with the output pole 130, and the welded and fixed welding frame 111, insulating connecting piece 120 and output pole 130 are beneficial to provide the connection strength, thereby being beneficial to guarantee the stable operation of the battery.

[0043] The welding frame 111 is metal material, preferably aluminum material.

[0044] As shown in Figure 4 and Figure 5 , the first end of the adapter piece 30 is used for electrical connection with the positive or negative pole lug, that is, the first end of one of the adapter pieces 30 is electrically connected with the positive pole lug, and the first end of the other adapter piece 30 is electrically connected with the negative pole lug, and the second end of the adapter piece 30 is provided with a conductive plate 320 which is arranged in close contact with the output pole 130 and is electrically connected with the output pole 130.

[0045] The conductive plate 320 is arranged in close contact with the output pole 130 to form a surface-to-surface close contact structure, thereby increasing the contact area, which is beneficial to reduce the impedance between the adapter piece 30 and the output pole 130, and optimize the connection structure, facilitate disassembly, and improve the assembly efficiency of the battery.

[0046] In the embodiment, the conductive plate 320 is arranged between the output pole 130 and the battery body 20 along the thickness direction of the shell 10, and the projection of the conductive plate 320 on the output pole 130 is located inside the area of the output pole 130, thereby realizing that the area of the conductive plate 320 is smaller than the area of the output pole 130, and realizing the technical effect of large-area conduction of the application.

[0047] As shown in Figure 4 and Figure 5 , the positive and negative pole lugs are arranged on the top surface of the battery body 20, the first end of the adapter piece 30 is provided with a connecting plate 310, the conductive plate 320 and the connecting plate 310 are arranged in a bent manner, and the connecting plate 310 is electrically connected with the positive or negative pole lug.

[0048] The connecting plate 310 is welded with the positive and negative pole lugs to realize electrical connection, the conductive plate 320 is arranged between the battery body 20 and the output pole 130, and electrical connection is realized by close contact between the conductive plate 320 and the output pole 130, the bent adapter piece 30 of the application is beneficial to realize the stability of the setting structure of the adapter piece 30, and realize the effect of large-area conduction by the output pole 130.

[0049] The conductive plate 320 is arranged perpendicularly to the connecting plate 310.

[0050] In the embodiment, in order to ensure that the conductive plate 320 and the output pole 130 are kept in close contact, the battery further comprises an elastic member 40 in the form of a plate, which abuts between the conductive plate 320 and the battery body 20 along the thickness direction of the shell 10, and the elastic member 40 is used to provide driving force for keeping the conductive plate 320 and the output pole 130 in close contact.

[0051] Embodiment two

[0052] The embodiment provides a battery pack, which comprises a plurality of batteries, and the battery is the battery in the embodiment one, and the plurality of batteries are stacked along the thickness direction of the shell 10 of the battery, and two adjacent batteries are electrically connected in close contact through the output pole 130 of the shell 10.

[0053] In the embodiment, the battery can be electrically connected during the stacking process without additional operation.

[0054] Further, the battery pack further comprises a shell, and the plurality of stacked batteries are arranged in the shell.

[0055] In the embodiment, the output pole 130 is used to contact and electrically connect the batteries, and a tab structure is not needed, so that the connection structure between the batteries is optimized, the battery pack is convenient to disassemble and assemble, and the assembly efficiency is improved.

[0056] From the above description, it can be seen that the embodiment of the battery pack has the following technical effects:

[0057] The battery of the application is provided with the adapter 30 in the shell 10, the positive and negative tabs of the battery are electrically connected with the output pole 130 of the shell 10 through the adapter 30, and the output pole 130 of the shell 10 of the battery is used to electrically connect with the adjacent battery, the structure of the battery of the application is arranged, the battery can be directly connected when the battery is stacked, and a tab structure is not needed, so that the connection structure between the batteries is optimized.

[0058] The battery of the application is provided with the adapter 30 in the shell 10, the positive and negative tabs of the battery are electrically connected with the output pole 130 of the shell 10 through the adapter 30, and the output pole 130 of the shell 10 of the battery is used to electrically connect with the adjacent battery, the structure of the battery of the application is arranged, the battery can be directly connected when the battery is stacked, and a tab structure is not needed, so that the connection structure between the batteries is optimized.

[0059] Obviously, the above-described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the protection scope of the present application.

[0060] It is to be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, devices, components and / or combinations thereof, but do not preclude the presence or addition of one or more other features, steps, operations, devices, components and / or combinations thereof.

[0061] It should be noted that the terms "first", "second", and the like, used in the specification and the claims of the present application are intended to distinguish similar objects, and are not necessarily intended to describe a particular sequential or chronological order. It should be understood that the use of data herein can be interchanged, where appropriate, to enable the embodiments of the present application described herein to be practiced in other than the order illustrated or described herein.

[0062] The preferred embodiments of the present application have been described above with the specific embodiments. The present application can be modified and changed by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A battery, characterized in that, include: The housing (10) has two plate segments arranged opposite to each other, the plate segments being output poles (130); The battery cell body (20) is disposed inside the housing (10), and the battery cell body (20) has a positive electrode tab and a negative electrode tab; Two adapters (30), the positive electrode tab is electrically connected to one of the output electrodes (130) through one of the adapters (30), and the negative electrode tab is electrically connected to the other output electrode (130) through the other adapter (30).

2. The battery according to claim 1, characterized in that, The first end of the adapter (30) is electrically connected to the positive electrode tab or the negative electrode tab, and the second end of the adapter (30) has a conductive plate (320) that is fitted to the output electrode (130), and the conductive plate (320) is electrically connected to the output electrode (130).

3. The battery according to claim 2, characterized in that, The conductive plate (320) is disposed between the output electrode (130) and the cell body (20) along the thickness direction of the housing (10); and / or The projection of the conductive plate (320) on the output electrode (130) is located inside the region of the output electrode (130).

4. The battery according to claim 2, characterized in that, The positive electrode tab and the negative electrode tab are disposed on the top surface of the battery cell body (20). The first end of the adapter (30) has a connecting plate (310). The conductive plate (320) and the connecting plate (310) are bent and disposed. The connecting plate (310) is electrically connected to the positive electrode tab or the negative electrode tab.

5. The battery according to claim 2, characterized in that, The battery also includes an elastic element (40) that abuts between the conductive plate (320) and the cell body (20) along the thickness direction of the housing (10). The elastic element (40) is used to provide a driving force for keeping the conductive plate (320) and the output electrode (130) in contact.

6. The battery according to any one of claims 1 to 5, characterized in that, The two plate segments arranged opposite each other are two oppositely arranged large surfaces of the housing (10); or the two plate segments arranged opposite each other are two oppositely arranged narrow surfaces of the housing (10); or the two plate segments arranged opposite each other are the bottom surface and top surface of the housing (10).

7. The battery according to any one of claims 1 to 5, characterized in that, The housing (10) includes: The outer frame (110) has openings at both ends along the thickness direction of the housing (10); Insulating connector (120); The output electrode (130) is connected to the outer frame (110) through the insulating connector (120), and the output electrode (130) blocks the opening.

8. The battery according to claim 7, characterized in that, The insulating connector (120) is made of ceramic; and / or The outer frame (110) has a welding frame (111) arranged circumferentially along the opening side, and the insulating connector (120) is welded and fixed to the welding frame (111) and the output electrode (130).

9. A battery pack, characterized in that, It includes multiple batteries, the batteries being any one of claims 1 to 8, the multiple batteries being stacked along the thickness of the battery housing (10), and adjacent batteries being electrically connected by an output terminal (130) of the housing (10).

10. A battery pack according to claim 9, characterized in that, The battery pack also includes a housing, and multiple batteries are stacked inside the housing.

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