Battery assembly and aerosol-generating apparatus including same

Abstract

Provided in the present application is a battery assembly, comprising: a battery cell, which is provided with a first end and a second end arranged opposite each other, and comprises a positive electrode located at the first end and a negative electrode located at the second end; a negative electrode adapter, which is electrically connected to the negative electrode of the battery cell and extends from the second end to the first end; a positive output terminal and a negative output terminal, which are both located at the first end of the battery cell, wherein the positive output terminal is electrically connected to the positive electrode of the battery cell, the negative output terminal is electrically connected to the negative electrode adapter, and the negative output terminal at least partially surrounds the periphery of the positive output terminal; and a first fixing member, which is arranged at the first end, wherein the positive output terminal and the negative output terminal are held spaced apart from each other on the first fixing member, and the positive output terminal and the negative output terminal are both at least partially exposed to an outer surface of the first fixing member, such that the battery assembly and a housing of an aerosol-generating device can be assembled and disassembled conveniently.

Description

A battery assembly and an aerosol generating device comprising the battery assembly

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to a Chinese patent application filed with the Patent Office of China on January 12, 2024, with application number 202420088809.3, entitled “A battery assembly and an aerosol generating device comprising the battery assembly,” the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application relates to the technical field of aerosol generation, and in particular to an aerosol generating device. Background Art

[0004] Current soft-pack batteries require a complex welding process when installed in an aerosol generating device. This makes it difficult to disassemble the soft-pack battery and the device if a malfunction occurs. Environmental regulations in the aerosol generating technology industry require the disassembly and recycling of the battery cells in aerosol generating devices. Currently, soft-pack batteries are welded to other conductive components via conductive leads, making them difficult to disassemble. Furthermore, the current welding process for soft-pack batteries and other components in the aerosol generating technology field cannot be automated for mass production.

[0005] Application Contents

[0006] To solve the problem that the welding process is complicated and difficult to disassemble when the battery cell is installed on the aerosol generating device.

[0007] One embodiment of the present application provides a battery assembly, comprising: a shell; a battery cell, housed inside the shell and having a first end and a second end oppositely arranged, the battery cell comprising a positive electrode located at the first end and a negative electrode located at the second end; a negative electrode adapter, electrically connected to the negative electrode of the battery cell and extending from the second end to the first end; a positive output terminal and a negative output terminal, the positive output terminal and the negative output terminal are both located at the first end of the battery cell, the positive output terminal is electrically connected to the positive electrode of the battery cell, the negative output terminal is electrically connected to the negative electrode adapter, and at least a portion of the negative output terminal surrounds the positive output terminal; a first fixing member, the first fixing member is connected to the shell and adjacent to the first end, the positive output terminal and the negative output terminal are held on the first fixing member at intervals, and at least a portion of both the positive output terminal and the negative output terminal are exposed to the outer surface of the first fixing member.

[0008] One embodiment of the present application provides a battery assembly, wherein the battery cell basically has a cylindrical shape extending from a first end to a second end, and / or the cross-section of the positive output terminal is circular, and / or the cross-section of the negative output terminal is annular.

[0009] An embodiment of the present application provides a battery assembly, wherein a first fixing member has a first slot and a second slot, the positive output terminal is fixed to the first slot, and the negative output terminal is fixed to the second slot.

[0010] An embodiment of the present application provides a battery assembly, wherein a first fixing member has an outer surface and an inner surface opposite to each other, a positive output terminal is mounted on the inner surface, and a negative output terminal is mounted on the outer surface.

[0011] One embodiment of the present application provides a battery assembly, wherein a first fixing member has a mounting hole, and a portion of a surface of a positive output terminal is exposed from the mounting hole to an outer surface of the first fixing member.

[0012] An embodiment of the present application provides a battery assembly, wherein the positive output terminal is a conductive post, and the conductive post is interference fit with the mounting hole.

[0013] One embodiment of the present application provides a battery assembly, further comprising a second fixing member, the second fixing member being arranged at the second end, the shell being connected between the first fixing member and the second fixing member, and the first fixing member, the shell, and the second fixing member jointly defining a space for accommodating a battery cell.

[0014] An embodiment of the present application provides a battery assembly, in which a positive output terminal, a negative output terminal and a fixing member are integrally formed by an injection molding process.

[0015] One embodiment of the present application provides a battery assembly, wherein the negative output terminal includes a first positioning groove, the first fixing member includes a positioning protrusion, and the first positioning groove and the positioning protrusion are adapted to each other so that the negative output terminal is retained on the first fixing member.

[0016] One embodiment of the present application provides a battery assembly, wherein the first fixing member includes a second positioning groove, the second positioning groove is opened on the side wall of the outer surface of the first fixing member, and the negative electrode adapter is fixed in the second positioning groove and extends to the top wall of the outer surface of the first fixing member.

[0017] One embodiment of the present application provides a battery assembly, wherein the negative output terminal covers the portion of the negative adapter extending to the top wall.

[0018] One embodiment of the present application provides a battery assembly, wherein a first fixing member has an outer surface and an inner surface facing each other, the first fixing member includes a first protrusion located on the outer surface, the first protrusion is located between the positive output terminal and the negative output terminal, and the first protrusion protrudes from the exposed surface of the positive output terminal and the exposed surface of the negative output terminal.

[0019] One embodiment of the present application provides a battery assembly, wherein a first fixing member has an outer surface and an inner surface facing each other, and the first fixing member includes a second protrusion located on the outer surface, the second protrusion surrounds the negative output terminal, and the second protrusion protrudes from the surface of the negative output terminal facing away from the battery cell.

[0020] One embodiment of the present application provides a battery assembly, wherein a first fixing member has an outer surface and an inner surface facing each other, and the first fixing member includes a third protrusion located on the inner surface, and the third protrusion is located between the positive and negative electrode adapters.

[0021] One embodiment of the present application provides a battery assembly, wherein the battery cell is a soft-pack battery cell.

[0022] One embodiment of the present application provides an aerosol generating device, comprising a housing and the above-mentioned battery assembly, wherein the battery assembly can be removed from the housing.

[0023] The battery assembly of the present application transfers the negative electrode of the battery cell from the second end of the battery cell to the first end through a negative electrode adapter, so that the positive and negative electrodes of the battery cell are output from the first end and then connected to the positive output terminal and the negative output terminal of the first end. The positive output terminal and the negative output terminal are maintained at intervals on the first fixing member, which facilitates the assembly and disassembly of the battery assembly and the shell of the aerosol generating device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplifications do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0025] FIG1 is a schematic diagram of a battery assembly according to an embodiment of the present application;

[0026] FIG2 is a schematic diagram of a battery assembly according to an embodiment of the present application;

[0027] FIG3 is a schematic diagram of a battery assembly according to an embodiment of the present application;

[0028] FIG4 is a schematic diagram of a battery cell according to an embodiment of the present application;

[0029] FIG5 is a schematic diagram of a first fixing member according to an embodiment of the present application;

[0030] FIG6 is a schematic diagram of a first fixing member according to an embodiment of the present application;

[0031] FIG7 is a schematic diagram of a first fixing member according to an embodiment of the present application;

[0032] FIG8 is a schematic diagram of a positive output terminal according to an embodiment of the present application;

[0033] FIG9 is a schematic diagram of a negative output terminal according to an embodiment of the present application;

[0034] FIG10 is a schematic diagram of a battery assembly according to an embodiment of the present application;

[0035] FIG11 is a schematic diagram of a battery assembly according to another embodiment of the present application;

[0036] FIG12 is a schematic diagram of a battery assembly according to another embodiment of the present application;

[0037] FIG13 is a schematic diagram of a first fixing member according to another embodiment of the present application;

[0038] FIG14 is a schematic diagram of a positive output terminal according to another embodiment of the present application;

[0039] FIG15 is a schematic diagram of a negative output terminal according to another embodiment of the present application;

[0040] FIG16 is a schematic diagram of an aerosol generating device according to another embodiment of the present application.

[0041] In the figure: 10, battery assembly; 1, battery cell; 11, first end; 12, second end; 13, positive electrode; 14, negative electrode; 2 (2a, 2b), negative electrode adapter; 3 (3a, 3b), positive electrode output terminal; 31, positive electrode clamping portion; 32, positive electrode abutting portion; 4 (4a, 4b), negative electrode output terminal; 41, positive electrode clamping portion; 42, negative electrode clamping portion; 43, positioning groove; 5 (5a, 5b), first fixing member; 51 (51b), outer surface; 52 (52b), inner surface; 53 (53b), mounting hole; 54, first card slot; 55, second card slot; 56 (56b), first protrusion; 57, second protrusion; 58, third protrusion; 59, first abutment wall; 510, first avoidance hole; 511, second avoidance hole; 512, positioning protrusion; 513, second positioning groove; 514, third positioning groove; 5101, side wall; 5102, top wall; 6 (6a, 6b), positive electrode adapter; 61, buffer; 7 (7a, 7b), shell; 8, second fixing member; 9, buffer; 20, outer shell; 100, aerosol generating device. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0043] The terms "first", "second" and "third" in this application are only used for descriptive purposes and cannot be understood as indicating or suggesting the quantity or order of the technical features indicated relative to importance or implicitly indicating the indicated technical features. In the embodiments of the present application, all directional indications (such as up, down, left, right, front, back ...) are only used to explain the relative position relationship or movement situation between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or equipment that includes a series of steps or units is not limited to the steps or units listed, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or equipment.

[0044] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0045] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be one or more intermediate elements in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0046] With reference to Figures 1 to 10, an embodiment of the present application provides a battery assembly 10, which includes: a housing 7; a battery cell, housed inside the housing 7 and having a first end 11 and a second end 12 arranged opposite to each other, the battery cell 1 including a positive electrode 13 located at the first end 11 and a negative electrode 14 located at the second end 12; a negative electrode adapter 2, electrically connected to the negative electrode 14 of the battery cell 1 and extending from the second end 12 to the first end 11; a positive output terminal 3 and a negative output terminal 4, the positive output terminal 3 and the negative output terminal 4 are connected to each other. 4 are both located at the first end 11, the positive output terminal 3 is electrically connected to the positive electrode 13 of the battery cell 1, the negative output terminal 4 is electrically connected to the negative adapter 2, and at least a portion of the negative output terminal 4 surrounds the positive output terminal 3; the first fixing member 5, the first fixing member 5 is connected to the housing 7 and is adjacent to the first end 11, the positive output terminal 3 and the negative output terminal 4 are held on the first fixing member 5 at intervals, and at least a portion of both the positive output terminal 3 and the negative output terminal 4 are exposed on the outer surface 51 of the first fixing member 5.

[0047] The battery assembly 10 of the present application transfers the negative electrode 14 of the battery cell 1 from the second end 12 of the battery cell 1 to the first end 11 through the negative electrode adapter 2, so that the positive electrode 13 and the negative electrode 14 of the battery cell 1 are output from the first end 11, and then connected to the positive output terminal 3 and the negative output terminal 4 of the first end 11. The positive output terminal 3 and the negative output terminal 4 are maintained at intervals on the first fixing member 5, which facilitates the assembly and disassembly of the battery assembly 10 and the housing 20 of the aerosol generating device 100.

[0048] In one embodiment of the present application, the battery cell 1 has a substantially cylindrical shape extending from the first end 11 to the second end 12, and / or the positive output terminal 3 has a circular cross-section, and / or the negative output terminal 4 has a ring-shaped cross-section. The circular shape of the positive output terminal 3 and the ring-shaped shape of the negative output terminal 4 facilitate installation of the battery assembly 10 into the aerosol generating device 100 without requiring consideration of the installation orientation. In one embodiment of the present application, the battery cell 1 has a substantially cylindrical shape extending from the first end 11 to the second end 12, and / or the positive output terminal 3 has a ring-shaped cross-section, and / or the negative output terminal 4 has a ring-shaped cross-section.

[0049] In one embodiment of the present application, the battery cell 1 is a soft-pack battery cell with a positive electrode 13 and a negative electrode 14 extending from both ends, wherein the packaging bag of the soft-pack battery cell is an aluminum-plastic film. In another embodiment of the present application, the battery cell 1 is a hard-pack battery cell with a positive electrode 13 and a negative electrode 14 extending from both ends, wherein the packaging bag of the hard-pack battery cell is an aluminum shell, a steel shell, or a shell made of other metals or alloys.

[0050] In one embodiment of the present application, the positive electrode 13 and negative electrode 14 of the battery cell 1 are metal conductors that lead the positive and negative electrodes out of the battery cell and serve as contact points during charging and discharging. When the battery cell 1 is a soft-pack battery cell, the positive electrode 13 is the positive electrode tab, which is generally made of aluminum, and the negative electrode 14 is the negative electrode tab, which is generally made of nickel or copper-plated nickel. When the battery cell 1 is a hard-pack battery cell, the positive electrode 13 and negative electrode 14 are both electrode posts, which are made of conductive materials such as stainless steel.

[0051] In one embodiment of the present application, the first fixture 5a has an outer surface 51 and an inner surface 52 that face each other. The outer surface 51 is the surface of the first fixture 5a facing away from the battery cell 1, and the inner surface 52 is the surface of the first fixture 5a facing the battery cell 1. The positive output terminal 3a is mounted on the inner surface 52, and the negative output terminal 4a is mounted on the outer surface 51. In one embodiment of the present application, the first fixture 5a has a mounting hole 53, and a portion of the surface of the positive output terminal 3a is exposed from the mounting hole 53 to the outer surface 51 of the first fixture 5a, so that both the positive output terminal 3a and the negative output terminal 4a are located on the outer surface 51 exposed to the first fixture 5a.

[0052] In one embodiment of the present application, the first fixing member 5a has a first slot 54 provided on the outer surface 51 and a second slot 55 provided on the inner surface 52. The positive output terminal 3a is mounted in the second slot 55 from the inner surface 52, and the negative output terminal 4a is mounted in the first slot 54 from the outer surface 51. As an example of the first slot 54 and the second slot 55, the first slot 54 is a blind hole provided in the outer surface 51, and the second slot 55 is a blind hole provided in the inner surface 52. As another example, the first slot 54 is a through hole provided in the outer surface 51, and the second slot 55 is a through hole provided in the inner surface 52.

[0053] In one embodiment of the present application, the first fixing member 5a includes a first protrusion 56 located on the outer surface 51, and the first protrusion 56 is located between the positive output terminal 3a and the negative output terminal 4a. The first protrusion 56 protrudes longitudinally from the exposed portion of the surface of the positive output terminal 3a and the exposed portion of the surface of the negative output terminal 4a, thereby separating the positive output terminal 3a and the negative output terminal 4a, and when the battery assembly 10 is placed on a conductor, the positive output terminal 3a and the negative output terminal 4a will not contact the conductor due to the action of the first fixing member 5a, thereby preventing a short circuit between the positive output terminal 3a and the negative output terminal 4a.

[0054] In one embodiment of the present application, the first fixing member 5a includes a second protrusion 57 on the outer surface 51. The second protrusion 57 surrounds the negative output terminal 4a and protrudes from the surface of the negative output terminal 4a facing away from the battery cell 1. When the battery assembly 10 is placed on a conductive object, the negative output terminal 4a does not contact the conductive object.

[0055] In one embodiment of the present application, the first fixing member 5a includes a third raised portion 58 on its inner surface 52. The third raised portion 58 is located between the positive electrode 13 and the negative electrode adapter 2a. The third raised portion 58 separates the inner surface 52 of the first fixing member 5a into a positive electrode region and a negative electrode region. The positive electrode 13 is located in the positive electrode region, and the negative electrode adapter 2a is located in the negative electrode region, thereby preventing a short circuit between the positive electrode 13 and the negative electrode adapter 2a.

[0056] In one embodiment of the present application, the positive output terminal 3a includes a positive clamping portion 31 and a positive abutting portion 32. The positive clamping portion 31 cooperates with the second clamping groove 55 of the inner surface 52 to retain the positive output terminal 3a on the first fixing member 5a. The first fixing member 5a also includes a first abutting wall 59, against which the positive abutting portion 32 abuts, further stabilizing the connection between the positive output terminal 3a and the first fixing member 5a.

[0057] In one embodiment of the present application, the negative output terminal 4a includes a negative clamping portion 41 and a negative abutting portion 42. The negative clamping portion 41 cooperates with the first clamping groove 54 of the outer surface 51, so that the negative output terminal 4a is retained on the first fixing member 5a. The first fixing member 5a also includes a first avoidance hole 510. The negative abutting portion 42 and the first avoidance hole 510 cooperate so that the negative output terminal 4a can be positioned by the negative abutting portion 42 and the first avoidance hole 510 when installed on the first fixing member 5a. In one embodiment of the present application, the negative abutting portion 42 and the negative adapter 2a at least partially overlap, and the negative adapter 2a and the negative output terminal 4a are connected by welding at the overlapping portion between the negative abutting portion 42 and the negative adapter 2a.

[0058] In one embodiment of the present application, the first fixing member 5 a further includes a second avoidance hole 511 , and the negative electrode adapter 2 a extends into the first fixing member 5 a through the second avoidance hole 511 .

[0059] In one embodiment of the present application, the negative electrode adapter 2a is a wire, one end of the wire is welded to the negative electrode 14 of the battery cell 1 at the second end 12, and the other end of the wire is welded to the negative electrode output terminal 4a at the first end 11. In one embodiment of the present application, the battery assembly 10 also includes a positive electrode adapter 6a, one end of the positive electrode adapter 6a is connected to the positive electrode 13 of the battery cell 1, and the other end of the positive electrode adapter 6a is connected to the positive electrode output terminal 3a. As an optional example, the positive electrode adapter 6a is a wire. As another optional example, the positive electrode 13 of the battery cell 1 and the positive electrode adapter 6 can be an integrated conductive structure. Similarly, the negative electrode 14 of the battery cell 1 and the negative electrode adapter 2 can be an integrated conductive structure.

[0060] In one embodiment of the present application, the positive output terminal 3, the negative output terminal 4, and the first fixing member 5 are integrally formed by injection molding. It is understood that the positive output terminal 3 and the negative output terminal 4 can be placed in a mold and then filled with injection molding glue to form an integral structure of the positive output terminal 3, the negative output terminal 4, and the first fixing member 5.

[0061] In one embodiment of the present application, the battery assembly 10 further includes a housing 7a and a second fixing member 8, the second fixing member 8 being disposed at the second end 12, the housing 7a being connected between the first fixing member 5a and the second fixing member 8, and the first fixing member 5a, the housing 7a, and the second fixing member 8 collectively defining a space for accommodating the battery cell. In one embodiment of the present application, the housing 7a is cylindrical with openings at the top and bottom, and the first fixing member 5a and the second fixing member 8 are fixed to the housing 7a by an interference fit. In one embodiment of the present application, the housing 7a is cylindrical with openings at the top and bottom, and the first fixing member 5a and the second fixing member 8 are connected to the housing 7a by threads.

[0062] In one embodiment of the present application, a buffer member 9 is provided between the battery cell 1 and the second fixing member 8. The buffer member 9 makes the structure of the battery assembly 10 more solid and prevents it from loosening when the battery assembly 10 falls. The surface of the buffer member 9 facing the battery cell 1 and the surface facing the second fixing member 8 are both provided with an adhesive layer. The adhesive layer makes the structure of the battery assembly 10 more solid. Furthermore, a buffer member 9 is also provided between the battery cell 1 and the first fixing member 5a. Similarly, the buffer member 9 is used to provide a buffer between the battery cell 1 and the first fixing member 5a during the falling or installation process of the battery assembly 10. As a suitable optional example, the material of the buffer member 9 can be a material with good expansion properties such as foam and silicone.

[0063] In one embodiment of the present application, the battery assembly 10 further includes a heat shrink film that covers the outer surface of the housing 7 a. In alternative embodiments, the battery assembly 10 further includes a heat shrink film that covers a portion of the outer surface 51 b of the first fixing member 5 a, the outer surface of the housing 7 a, and a portion of the outer surface of the second fixing portion 8.

[0064] Referring to Figures 11 to 15 , another embodiment of a battery assembly 10 is provided in the present application. The first fixing member 5b has an outer surface 51b and an inner surface 52b facing each other. The outer surface 51b is the surface of the first fixing member 5b facing away from the battery cell 1, and the inner surface 52b is the surface of the first fixing member 5b facing the battery cell 1. The negative output terminal 4b is mounted on the outer surface 51b. In one embodiment of the present application, the first fixing member 5b has a mounting hole 53b, the positive output terminal 3b is mounted in the mounting hole 53b, and a portion of the surface of the positive output terminal 3b is exposed to the outer surface 51b of the first fixing member 5b, thereby exposing both the positive output terminal 3b and the negative output terminal 4b to the outer surface 51b of the first fixing member 5b.

[0065] In this embodiment, the positive output terminal 3 b is a conductive post, and the conductive post is interference-fitted with the mounting hole 53 b.

[0066] In this embodiment, the negative output terminal 4b is a conductive sheet. The negative output terminal 4b includes a first positioning groove 43, and the first fixing member 5b includes a positioning protrusion 512. The first positioning groove 43 and the positioning protrusion 512 are adapted to retain the negative output terminal 4b on the first fixing member 5b. The first positioning groove 43 is a blind hole or a through hole.

[0067] In this embodiment, the first fixing member 5b includes a second positioning groove 513, which is opened on the side wall 5101 of the outer surface 51b of the first fixing member 5b, and the negative electrode adapter 2b is fixed in the second positioning groove 513 and extends to the top wall 5102 of the outer surface 51b of the first fixing member 5b.

[0068] In this embodiment, the negative output terminal 4b covers the portion of the negative electrode adapter 2b that extends to the top wall 5102 of the outer surface 51b of the first fixing member 5b. The negative output terminal 4b covers the portion of the negative electrode adapter 2b that extends to the side wall 5101 of the outer surface 51b of the first fixing member 5b. The negative output terminal 4b and the negative electrode adapter 2b are welded together at the portion where the top wall 5102 of the outer surface 51b of the first fixing member 5b overlap. The negative output terminal 4b and the negative electrode adapter 2b are welded together at the portion where the side wall 5101 of the outer surface 51b of the first fixing member 5b overlap.

[0069] In this embodiment, the negative electrode adapter 2b is a conductive sheet, one end of the negative electrode adapter 2b is electrically connected to the negative electrode 14 of the battery cell 1, and the other end of the negative electrode adapter 2b is retained in the second positioning groove 513 of the side wall 5101 of the first fixing member 5b, and then extends to the top wall 5102 of the first fixing member 5b, thereby electrically connecting to the negative output terminal 4b located on the top wall 5102 of the first fixing member 5b.

[0070] In this embodiment, the first fixing member 5b includes a first protrusion 56b located on the outer surface 51b, and the first protrusion 56b is located between the positive output terminal 3b and the negative output terminal 4b. The first protrusion 56b protrudes from the exposed surface of the positive output terminal 3b and the exposed surface of the negative output terminal 4b, thereby separating the positive output terminal 3b and the negative output terminal 4b. When the battery assembly 10 is placed on a conductor, the positive output terminal 3b and the negative output terminal 4b will not contact the conductor due to the action of the first fixing member 5b, thereby preventing a short circuit between the positive output terminal 3b and the negative output terminal 4b.

[0071] In this embodiment, the battery assembly 10 further includes a positive electrode adapter 6b, one end of which is connected to the positive electrode 13 of the battery cell 1, and the other end of which is connected to the positive output terminal 3b. As one example, the positive electrode 13 of the battery cell 1 and the positive electrode adapter 6b can be an integrated conductive structure. Similarly, the negative electrode 14 of the battery cell 1 and the negative electrode adapter 2b can be an integrated conductive structure. As other examples, the positive electrode adapter 6b is a conductive sheet, and the positive electrode adapter 6b further includes a buffer portion 61. The buffer portion 61 leaves an installation margin for the positive electrode adapter 6b, so that the other end of the positive electrode adapter 6b and the positive output terminal 3b can be welded and then placed on the inner surface of the first fixing member 51b.

[0072] In this embodiment, the battery assembly 10 also includes a shell 7b, which is cylindrical with an open upper end. The first fixing member 51b and the shell 7b are connected by an interference fit. A buffer member 9 is provided between the battery cell 1 and the bottom inner wall of the shell 7b. The buffer member 9 makes the structure of the battery assembly 10 more solid and prevents the battery assembly 10 from loosening when it falls. The surface of the buffer member 9 facing the battery cell 1 and the surface facing the bottom inner wall of the shell 7b are both provided with an adhesive layer. The adhesive layer makes the structure of the battery assembly 10 more solid. Similarly, a buffer member 9 is also provided between the battery cell 1 and the first fixing member 5b to provide a buffer between the battery cell 1 and the first fixing member 5b.

[0073] In this embodiment, the battery assembly 10 further includes a heat shrink film that covers the side walls of the housing 7 b. In alternative embodiments, the battery assembly 10 further includes a heat shrink film that covers a portion of the top wall 5102 of the first fixing member 5 b, the side walls of the housing 7 b, and a portion of the bottom wall of the housing 7 b.

[0074] In this embodiment, the first fixing member 5 and the second fixing member 8 are plastic parts, and the housing 7 is made of metal or metal alloy, such as aluminum and stainless steel.

[0075] Referring to Figure 16 , one embodiment of the present application provides an aerosol generating device 100, comprising a housing 20 and a battery assembly 10 provided in any of the aforementioned embodiments. The battery assembly 10 is removable from the housing 20. The aerosol generating device 100 is used to heat and atomize an aerosol-generating substrate to produce an aerosol. An aerosol generating device generally includes the battery assembly 10, the housing 20, an atomizing assembly, a mouthpiece, and the like.

[0076] In the aerosol generating device 100 of the present application, the positive output terminal 3 and the negative output terminal 4 are located at the same end of the battery assembly 10, and the negative output terminal 4 surrounds the positive output terminal 3. When the battery assembly 10 is installed in the aerosol generating device 100, the installation orientation does not need to be considered, making installation and removal easy. If the battery assembly 10 fails, it can be replaced.

[0077] It should be noted that the specification and drawings of this application provide preferred embodiments of the present application, but are not limited to the embodiments described in this specification. Furthermore, it is possible for a person skilled in the art to make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to this application.

Claims

1. A battery assembly, characterized in that, Comprising: A housing; A battery cell, accommodated inside the housing and having a first end and a second end disposed opposite to each other, the battery cell including a positive electrode at the first end and a negative electrode at the second end; A negative electrode adapter, electrically connected to the negative electrode of the battery cell and extending from the second end to the first end; A positive output terminal and a negative output terminal, both the positive output terminal and the negative output terminal are located at the first end of the battery cell, the positive output terminal is electrically connected to the positive electrode of the battery cell, the negative output terminal is electrically connected to the negative electrode adapter, and at least a part of the negative output terminal surrounds the positive output terminal; A first fixing member, the first fixing member is connected to the housing and adjacent to the first end, the positive output terminal and the negative output terminal are held on the first fixing member at intervals, and at least a part of both the positive output terminal and the negative output terminal are exposed on the outer surface of the first fixing member.

2. The battery assembly according to claim 1, wherein The battery cell substantially has a columnar shape extending from the first end to the second end, and / or the cross-section of the positive output terminal is circular, and / or the cross-section of the negative output terminal is annular.

3. The battery assembly according to claim 1, characterized in that The first fixing member has a first card slot and a second card slot, the positive output terminal is fixed in the first card slot, and the negative output terminal is fixed in the second card slot.

4. The battery assembly according to claim 1, characterized in that The first fixing member has an outer surface and an inner surface opposite to each other, the positive output terminal is installed on the inner surface, and the negative output terminal is installed on the outer surface.

5. The battery assembly according to claim 4, characterized in that, The first fixing member has a mounting hole, and a part of the surface of the positive output terminal is exposed from the mounting hole to the outer surface of the first fixing member.

6. The battery assembly according to claim 5, wherein The positive output terminal is a conductive column, and the conductive column is in interference fit with the mounting hole.

7. The battery module according to claim 1, wherein, It further includes a second fixing member, the second fixing member is disposed at the second end, the housing is connected between the first fixing member and the second fixing member, and the first fixing member, the housing, and the second fixing member together define a space for accommodating the battery cell.

8. The battery assembly according to claim 1, wherein, The positive output terminal, the negative output terminal, and the first fixing member are integrally formed by an injection molding process.

9. The battery assembly according to claim 1, wherein The negative output terminal includes a first positioning groove, and the first fixing member includes a positioning protrusion, and the first positioning groove and the positioning protrusion are adapted to each other so that the negative output terminal is held on the first fixing member.

10. The battery component according to claim 1, wherein The first fixing member includes a second positioning groove, the second positioning groove is opened on the side wall of the outer surface of the first fixing member, and the negative electrode adapter is fixed in the second positioning groove and extends to the top wall of the outer surface of the first fixing member.

11. The battery assembly according to claim 10, characterized in that, The negative output terminal covers the part of the negative electrode adapter extending to the top wall.

12. The battery assembly according to claim 1, wherein, The first fixing member has an outer surface and an inner surface opposite to each other, the first fixing member includes a first protruding portion on the outer surface, the first protruding portion is located between the positive output terminal and the negative output terminal, and the first protruding portion protrudes from the part of the surface of the positive output terminal exposed and the part of the surface of the negative output terminal exposed.

13. The battery assembly according to claim 1, characterized in that, The first fixing member has opposite outer and inner surfaces. The first fixing member includes a second protruding portion located on the outer surface. The second protruding portion surrounds the negative output terminal, and the second protruding portion protrudes from the surface of the negative output terminal facing away from the battery cell.

14. The battery assembly according to claim 1, characterized in that, The first fixing member has opposite outer and inner surfaces. The first fixing member includes a third protruding portion located on the inner surface. The third protruding portion is located between the positive electrode and the negative electrode adapter.

15. The battery assembly according to claim 1, wherein, The battery cell is a soft-pack battery cell.

16. An aerosol generating device, characterized in that, It includes a housing and the battery assembly according to any one of claims 1-15. The battery assembly can be removed from the housing.

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