Battery and electronic device

Abstract

The utility model discloses a battery and an electronic device. The battery comprises at least two hard-shell battery cells, a circuit board and a connecting piece, wherein the at least two hard-shell battery cells are electrically connected with the circuit board. The connecting piece comprises a connecting body, a shell of the hard-shell battery cell comprises a peripheral side wall, the connecting body is connected with the peripheral side wall, and the connecting piece is used for mechanically connecting the hard-shell battery cell and external equipment. According to the battery and the electronic device, the connecting piece comprises the connecting body, the shell of the hard-shell battery cell comprises the peripheral side wall, the connecting body is connected with the peripheral side wall, and the connecting piece can be connected with the hard-shell battery cell and the external equipment, so that the connecting piece can replace a plastic frame in the related technology, and compared with the plastic frame in the related technology, the connecting piece can be used for connecting the hard-shell battery cell with the external equipment. The connecting piece occupies less space, so that the volume of the hard-shell battery cell can be ensured, the capacity of the hard-shell battery cell is increased, and the endurance time of the electronic device is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of batteries, and more particularly, to a battery and an electronic device. Background Art

[0002] In the related art, in an electronic device, such as a laptop computer, etc., an accommodation cavity is usually provided inside. The battery is disposed in the accommodation cavity, and the battery can supply power to the electronic device. Generally, the battery includes structures such as a plastic frame, an electric core, a circuit board, a label, and a mylar film. The mylar film covers the outside of the electric core. The plastic frame includes a bottom wall and a peripheral wall. The peripheral wall extends from the periphery of the bottom wall and forms an installation groove together with the bottom wall. The electric core is located in the installation groove. The circuit board is disposed on the plastic frame and is electrically connected to the electric core. The label is pasted on the front and back of the electric core. Among them, the settings of structures such as the plastic frame, the label, and the mylar film will all occupy the space of the accommodation cavity, resulting in the space that the electric core can occupy in the accommodation cavity being squeezed, the volume of the electric core becoming smaller, and thus the capacity of the electric core becoming smaller and the battery life of the electronic device being reduced. Summary of the Utility Model

[0003] Embodiments of the present application provide a battery and an electronic device.

[0004] The battery according to the embodiments of the present application includes at least two hard-shell electric cores, a circuit board, and a connecting member. At least two of the hard-shell electric cores are electrically connected to the circuit board. The connecting member includes a connecting body. The shell of the hard-shell electric core includes a peripheral side wall. The connecting body is connected to the peripheral side wall. The connecting member is used for mechanically connecting the hard-shell electric core to an external device.

[0005] In some embodiments, the peripheral side wall includes a top wall, a bottom wall opposite to the top wall, and side walls sequentially connecting the top wall and the bottom wall. The connecting body is connected to at least one of the top wall, the bottom wall, and the side walls.

[0006] In some embodiments, the connecting member further includes a connecting protrusion. The connecting protrusion protrudes and extends away from the hard-shell electric core from the outside of the connecting body. The connecting protrusion is used for connecting to the external device.

[0007] In some embodiments, the connecting member is connected to the side wall.

[0008] In some embodiments, the connecting body includes a connecting portion. The connecting portion is disposed on the side wall.

[0009] In some embodiments, in the width direction of the hard-shell electric core, the side wall includes an opposite third side wall and a fourth side wall. The connecting portion is disposed on the third side wall and / or the fourth side wall.

[0010] In some embodiments, in the length direction of the hard-shell battery cell, the side wall includes a first side wall and a second side wall facing away from each other. The connection body further includes a coupling portion, and the coupling portion is disposed on the first side wall or the second side wall.

[0011] In some embodiments, the tab of the hard-shell battery cell penetrates through the side wall.

[0012] In some embodiments, the connecting member is an independent structure disposed on the external device, and the connecting member is adapted to be connected to the hard-shell battery cell.

[0013] In some embodiments, the hard-shell battery cell includes a rigid housing, an electrode assembly, and tabs. The electrode assembly is disposed inside the housing. The tab penetrates through the housing, one end of the tab is electrically connected to the electrode assembly, and the other end is electrically connected to the circuit board.

[0014] In some embodiments, the housing is a metal shell.

[0015] In some embodiments, label information is formed on the housing.

[0016] In some embodiments, the battery further includes a thermal fuse. The thermal fuse is disposed in contact with the side wall of the housing and is electrically connected to the tab. The size of the thermal fuse in the length direction of the hard-shell battery cell is smaller than the size of the thermal fuse in the width direction of the hard-shell battery cell and the size of the thermal fuse in the height direction of the hard-shell battery cell.

[0017] In some embodiments, the electrode assembly abuts against at least a part of the inner wall of the housing.

[0018] In some embodiments, at least two of the hard-shell battery cells include a first hard-shell battery cell and a second hard-shell battery cell. There is a gap between the first hard-shell battery cell and the second hard-shell battery cell in the length direction or the width direction of the hard-shell battery cell. The tabs of the first hard-shell battery cell and the second hard-shell battery cell are both located in the gap. The circuit board is disposed in the gap and is electrically connected to both the tab of the first hard-shell battery cell and the tab of the second hard-shell battery cell.

[0019] In some embodiments, the battery further includes an insulating member. The insulating member is disposed on the circuit board and covers the electronic devices on the circuit board.

[0020] In some embodiments, the battery further includes a connecting member. The connecting member is connected to the hard-shell battery cell, and the connecting member is used to connect the hard-shell battery cell to an external device.

[0021] In some embodiments, in the height direction of the hard shell battery cell, the hard shell battery cell includes opposite top and bottom walls. The battery further includes a fixing member detachably disposed on the top wall or the bottom wall.

[0022] In some embodiments, in the height direction of the hard shell battery cell, the hard shell battery cell includes opposite top and bottom walls. The battery further includes an easy-pull adhesive disposed on the top wall or the bottom wall, and the easy-pull adhesive is used to connect the hard shell battery cell to an external device.

[0023] The electronic device according to the embodiment of the present application includes the battery according to any one of the above embodiments.

[0024] In the battery and the electronic device according to the embodiment of the present application, the connecting member includes a connecting body. The housing of the hard shell battery cell includes a peripheral side wall. The connecting body is connected to the peripheral side wall, and the connecting member can connect the hard shell battery cell to an external device. In this way, the connecting member can replace the plastic frame in the related art, and compared with the plastic frame in the related art, the connecting member occupies less space, so that the volume of the hard shell battery cell can be ensured, the capacity of the hard shell battery cell can be increased, and the battery life of the electronic device can be extended.

[0025] The additional aspects and advantages of the present application will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present application. Description of the Drawings

[0026] The above and / or additional aspects and advantages of the present application will become apparent and be easily understood from the description of the embodiments in conjunction with the following drawings, wherein:

[0027] Figure 1 is a schematic structural diagram of an electronic device according to some embodiments of the present application;

[0028] Figure 2 is a schematic structural diagram of an electronic device according to an embodiment of the present application;

[0029] Figure 3 is Figure 1 a schematic plan view of the battery in the electronic device shown;

[0030] Figure 4 is Figure 3 a schematic exploded perspective view of the battery shown;

[0031] Figure 5 is Figure 3 a schematic perspective view of the hard shell battery cell and the thermal fuse in the battery shown.

[0032] Main Element Symbol Description:

[0033] Electronic device 1000; height direction Z; length direction X; width direction Y;

[0034] Battery 100; main body 200;

[0035] Hard shell battery cell 10, housing 11, top wall 111, bottom wall 113, peripheral side wall 114, side wall 115, first side wall 1151, second side wall 1153, third side wall 1155, fourth side wall 1157, electrode assembly 13, tab 15, positive tab 151, negative tab 153, first hard shell battery cell 17, second hard shell battery cell 19, gap 101;

[0036] Circuit board 20, substrate 21, mounting surface 211, electronic device 23;

[0037] Thermal fuse 30; insulating part 40; connecting part 50, connecting body 51, coupling part 511, connecting part 513, connecting projection 53;

[0038] Fixing part 60; easy - pull adhesive 70. Detailed implementation mode

[0039] In order to make the above - mentioned objects, features and advantages of the present application more obvious and understandable, the following describes the detailed implementation mode of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0040] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "length", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present application.

[0041] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0042] In this application, unless otherwise clearly defined or limited, terms such as "installed", "connected", and "linked" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0043] In this application, unless otherwise clearly defined or limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over", and "on top of" the second feature can mean that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath", and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature has a lower horizontal height than the second feature.

[0044] Please refer to Figure 1 , the electronic device 1000 of the embodiment of this application includes a battery 100. Among them, the electronic device 1000 includes but is not limited to tablet computers, laptop computers, personal computers, mobile phones, wearable devices, automobiles, drones, and robots, etc. Wearable devices include but are not limited to smart bracelets, smart watches, and smart glasses, etc.

[0045] Furthermore, in some embodiments, the electronic device 1000 further includes a main body 200, the battery 100 is disposed inside the main body 200, and the battery 100 can supply power to the electronic device 1000. Exemplarily, please combine Figure 2 , in the case where the electronic device 1000 is a laptop computer, the laptop computer includes a main body 200, the battery 100 is disposed inside the main body 200, and can supply power to the laptop computer. Among them, the main body 200 can provide protection for the battery 100 to prevent the battery 100 from being directly collided with external objects during the use of the laptop computer, thereby extending the service life of the battery 100.

[0046] Among them, since the electronic device 1000 in this embodiment includes a battery 100, it can be understood that the electronic device 1000 at least includes the same beneficial effects as the battery 100. Therefore, for the beneficial effects of the electronic device 1000, please refer to the beneficial effects of the battery 100 introduced below.

[0047] Please refer to Figure 1 , Figure 3 and Figure 4, the battery 100 according to the embodiments of the present application includes at least two hard-shell battery cells 10, a circuit board 20, and a connecting member 50. At least two hard-shell battery cells 10 are electrically connected to the circuit board 20. The connecting member 50 includes a connecting body 51. The housing 11 of the hard-shell battery cell 10 includes a peripheral sidewall 114. The connecting body 51 is connected to the peripheral sidewall 114. The connecting member 50 is used for mechanically connecting the hard-shell battery cell 10 to an external device. It should be noted that, in some embodiments, the external device may be the main body 200 of the electronic device 1000 in the above embodiments.

[0048] Please refer to Figure 4 , the hard-shell battery cell 10 is a battery cell whose housing 11 is made of a material with a certain hardness and strength. In some embodiments, the hard-shell battery cell 10 includes a rigid housing 11. In this way, the housing 11 is not easily deformed when being squeezed or collided, so that the hard-shell battery cell 10 has a high structural strength and the safety performance can also be improved. It should be noted that, in some embodiments, the housing 11 is a metal shell. Among them, the metal includes but is not limited to steel or iron, etc., that is, the housing 11 is a steel shell, an iron shell, an aluminum shell, etc.

[0049] Furthermore, in some embodiments, the hard-shell battery cell 10 further includes an electrode assembly 13 and a tab 15. The electrode assembly 13 is disposed inside the housing 11. The tab 15 penetrates the housing 11. One end of the tab 15 is electrically connected to the electrode assembly 13, and the other end is electrically connected to the circuit board 20.

[0050] Among them, the electrode assembly 13 is a component in the hard-shell battery cell 10 where an electrochemical reaction occurs. One or more electrode assemblies 13 may be included inside the housing 11. The electrode assembly 13 includes a pole piece unit and tabs 15. In the hard-shell battery cell 10, two tabs 15 extend from the side of the pole piece unit, namely a positive tab 151 and a negative tab 153. The positive tab 151 and the negative tab 153 are located on the same side of the pole piece unit. Among them, the pole piece unit includes a negative electrode plate, a positive electrode plate, and a separator. The separator is located between the adjacent negative electrode plate and the positive electrode plate and is used to separate the negative electrode plate and the positive electrode plate.

[0051] The tab 15 can be understood as a metal conductor that leads out the positive and negative poles from the electrode assembly 13, or can be understood as the contact point of the positive and negative poles of the electrode assembly 13 during charge and discharge. The tab 15 is usually a sheet-like laminated structure. The tab 15 is composed of a part of the positive electrode plate or the negative electrode plate that does not have an active substance and can be divided into a positive tab 151 and a negative tab 153. In the embodiments of the present application, the positive tab 151 and the negative tab 153 are located at one end of the electrode assembly 13. The tab 15 is usually made of materials such as copper, aluminum, nickel, or nickel-plated copper. For example, if the positive electrode plate of the electrode assembly 13 uses aluminum (Al) material and the negative electrode plate uses copper (Cu) material, then the material of the tab 15 led out from the positive electrode plate is also aluminum, and the material of the tab 15 led out from the negative electrode plate is copper.

[0052] In some embodiments, at least two hard shell battery cells 10 are welded to a circuit board 20 to physically connect and electrically connect to each other at least two hard shell battery cells 10 through the circuit board 20.

[0053] Specifically, in some embodiments, welding at least two hard shell battery cells 10 to the circuit board 20 may include: welding the tabs 15 of at least two hard shell battery cells 10 to the circuit board 20; or, welding both the tabs 15 and the housings 11 of at least two hard shell battery cells 10 to the circuit board 20.

[0054] As can be seen from the above, the housing 11 is a metal shell. Exemplarily, the housing 11 is a steel shell. At this time, if the housing in the related art is a plastic shell or an aluminum plastic film, then when the strength of the housing 11 is the same, the thickness of the housing 11 in the present application can be set smaller, so as to be able to reduce the space size occupied by the housing 11, and further increase the volume of the electrode assembly 13 and improve the energy density of the hard shell battery cell 10.

[0055] Wherein, when there are multiple hard shell battery cells 10, the multiple hard shell battery cells 10 can be connected in series, in parallel or in a hybrid connection. A hybrid connection means that the hard shell battery cells 10 in the battery 100 have both series and parallel connections. The multiple hard shell battery cells 10 can be directly connected in series, in parallel or in a hybrid connection together to form the battery 100.

[0056] The circuit board 20 may include, but is not limited to, a rigid circuit board, a flexible circuit board, a rigid-flex circuit board, etc. The circuit board 20 is connected to at least two hard shell battery cells 10 (including physical connection and electrical connection) so that at least two hard shell battery cells 10 form a whole, which can facilitate the installation of the battery 100 in an external device.

[0057] In some embodiments, the circuit board 20 includes a substrate 21 and electronic devices 23 disposed on the mounting surface 211 of the substrate 21. Among them, the tabs 15 of at least two hard shell battery cells 10 are electrically connected to the substrate 21, and the electronic devices 23 (such as transistors, integrated circuits, diodes, triodes, resistors, capacitors, and inductors, etc.) can be fixed to the mounting surface 211 by welding, plugging or other mounting methods. In this way, the battery 100 can realize functions such as charge and discharge control through the circuit board 20.

[0058] Please refer to Figure 3 and Figure 4 , in some embodiments, the battery 100 further includes an insulating member 40. The insulating member 40 is disposed on the circuit board 20 and covers the electronic devices 23 of the circuit board 20. It should be noted that, in some embodiments, the insulating member 40 is made of an insulating material, and the insulating material includes, but is not limited to, plastics, rubbers, glass, mica, etc.

[0059] Among them, the insulation member 40 can, on the one hand, isolate the electronic device 23, prevent the direct contact between the electronic device 23 and the outside world, avoid the electric shock risk caused by the user's direct contact with the electronic device 23, and ensure the user's safety in use; on the other hand, it can prevent the electronic device 23 from colliding with the external structure and causing damage to the electronic device 23, thereby extending the service life of the circuit board 20 and ensuring the normal operation of the circuit board 20 and the battery 100.

[0060] In some embodiments, the insulation member 40 and the circuit board 20 can be combined together by a detachable connection method, and the detachable connection methods include but are not limited to screw connection or snap connection, etc. In other embodiments, the insulation member 40 and the circuit board 20 can be combined together by a non-detachable connection method, and the non-detachable connection methods include but are not limited to welding or bonding, etc.

[0061] Please refer to Figure 1 , Figure 3 and Figure 4 , in certain embodiments, when the connecting member 50 connects the hard shell battery cell 10 to an external device, the hard shell battery cell 10 can supply power to the external device. It can be understood that in other embodiments, the connection methods between the connection body 51 and the housing 11 can also include but are not limited to bonding, snap connection, and bolt connection, etc.

[0062] In the battery 100 of the embodiment of the present application, the connecting member 50 includes a connection body 51. The housing 11 of the hard shell battery cell 10 includes a peripheral side wall 114. The connection body 51 is connected to the peripheral side wall 114, and the connecting member 50 can connect the hard shell battery cell 10 to an external device. In this way, the connecting member 50 can replace the plastic frame in the related art, and compared with the plastic frame in the related art, the connecting member 50 occupies less space, thereby being able to ensure the volume of the hard shell battery cell 10, increase the capacity of the hard shell battery cell 10, and extend the battery life of the electronic device 1000.

[0063] Moreover, the battery cell in the battery 100 is a hard shell battery cell 10. Compared with the battery cell in the related art, the housing 11 of the hard shell battery cell 10 in the present application is harder and does not need to be protected by a plastic frame, and there is no need to provide structures such as a mylar film on the outside of the hard shell battery cell 10. In this way, the installation space of the hard shell battery cell 10 will not be occupied by structures such as a mylar film, thereby being able to ensure the volume of the hard shell battery cell 10, increase the capacity of the hard shell battery cell 10, and extend the battery life of the electronic device 1000.

[0064] In addition, since the hard shell battery cell 10 does not require a plastic frame and a mylar film, on the one hand, the production and processing cost of the battery 100 can be reduced; on the other hand, the assembly steps of the battery 100 can be simplified. That is, during the assembly process of the battery 100, there is no need to perform the assembly steps of the hard shell battery cell 10 with the plastic frame and the mylar film, thereby improving the production efficiency of the battery 100.

[0065] The battery 100 will be further described below with reference to the accompanying drawings.

[0066] Please refer to Figure 1 、 Figure 3 and Figure 4 , in some embodiments, the connecting member 50 is an independent structure provided on an external device, and the connecting member 50 is adapted to be connected to the hard shell battery cell 10. Wherein, the connecting member 50 enables the hard shell battery cell 10 to be adapted to different external devices. For example, hard shell battery cells 10 of the same size can be applied to laptop computers with different structures, thereby improving the applicability of the hard shell battery cell 10.

[0067] Wherein, the connecting member 50 is an independent structure provided on the external device, so that it is convenient to adjust the installation position of the connecting member 50 on the external device. In one example, the connecting member 50 and the external device can be combined together by a detachable connection method, and the detachable connection methods include but are not limited to bolt connection and snap connection, etc. In another example, the connecting member 50 and the external device can be combined together by a non-detachable connection method, and the non-detachable connection methods include but are not limited to welding or bonding, etc.

[0068] In addition, since the battery cell in the battery 100 is the hard shell battery cell 10, compared with the battery cells in the related art, the shell 11 of the hard shell battery cell 10 in the present application is harder. Therefore, when the connecting member 50 is an independent structure provided on the external device, the hard shell battery cell 10 does not need to be electrically connected to the external device through a plastic frame. In this way, the installation space of the hard shell battery cell 10 will not be occupied by the plastic frame, thereby ensuring the volume of the hard shell battery cell 10, increasing the capacity of the hard shell battery cell 10, and prolonging the battery life of the electronic device 1000.

[0069] It can be understood that, in other embodiments, the connecting member 50 and the external device can be an integral structure, that is, the connecting member 50 and the external device are combined together by an integrally formed method.

[0070] Please refer to Figure 3 and Figure 4, in some embodiments, at least two hard-shell battery cells 10 include a first hard-shell battery cell 17 and a second hard-shell battery cell 19. In the length direction X or the width direction Y of the hard-shell battery cell 10, there is a gap 101 between the first hard-shell battery cell 17 and the second hard-shell battery cell 19. The tabs 15 of the first hard-shell battery cell 17 and the tabs 15 of the second hard-shell battery cell 19 are both located within the gap 101. The circuit board 20 is disposed within the gap 101 and is electrically connected to both the tabs 15 of the first hard-shell battery cell 17 and the tabs 15 of the second hard-shell battery cell 19. It can be understood that, in some embodiments, the structures of the first hard-shell battery cell 17 and the second hard-shell battery cell 19 may be exactly the same.

[0071] Specifically, in some embodiments, the tabs 15 of the first hard-shell battery cell 17 and the tabs 15 of the second hard-shell battery cell 19 can be electrically connected through the circuit board 20. In this way, the battery 100 can achieve functions such as charge and discharge control through the circuit board 20; moreover, the first hard-shell battery cell 17 and the second hard-shell battery cell 19 can also be physically connected together through the circuit board 20, that is, the first hard-shell battery cell 17, the second hard-shell battery cell 19, and the circuit board 20 can jointly form an integral body (i.e., the battery 100). At this time, the battery 100 can be disposed in an external device.

[0072] Among them, the circuit board 20 is disposed in the gap 101. Thus, compared with the circuit board 20 being disposed on the top ( Figure 4 the uppermost part of the hard-shell battery cell 10) or the bottom ( Figure 4 the lowermost part of the hard-shell battery cell 10) of the first hard-shell battery cell 17 and / or the second hard-shell battery cell 19, the space occupied by the circuit board 20 and the hard-shell battery cell 10 in the height direction Z of the hard-shell battery cell 10 is smaller. On the one hand, this can prevent interference with other structures in the electronic device 1000 ( Figure 1 shown) when the battery 100 is disposed in the electronic device 1000, ensuring the normal assembly of the battery 100; on the other hand, it can prevent the circuit board 20 from occupying the setting space of the hard-shell battery cell 10, thereby ensuring the volume of the hard-shell battery cell 10, increasing the capacity of the hard-shell battery cell 10, and extending the battery life of the electronic device 1000.

[0073] It should be noted that, please refer to Figure 4, in some embodiments, the first hard shell battery cell 17 may include at least two, and at least two first hard shell battery cells 17 may be arranged side by side along the width direction Y of the hard shell battery cell 10; correspondingly, the second hard shell battery cell 19 may include at least two, and at least two second hard shell battery cells 19 may be arranged side by side along the width direction Y of the hard shell battery cell 10. Among them, when the hard shell battery cell 10 includes only two first hard shell battery cells 17, the two first hard shell battery cells 17 are arranged side by side along the width direction Y of the hard shell battery cell 10. When the hard shell battery cell 10 includes only two second hard shell battery cells 19, the two second hard shell battery cells 19 are arranged side by side along the width direction Y of the hard shell battery cell 10.

[0074] Please refer to Figure 4 , in some embodiments, label information is formed on the housing 11. It should be noted that, in some embodiments, the label information may be formed on the housing 11 by one or more of the manufacturing methods such as printing, laser engraving, etching, thermal transfer or spraying. Among them, printing includes but is not limited to screen printing, inkjet printing and digital printing, etc.

[0075] Specifically, the label information includes but is not limited to trademarks, product models, production batches, manufacturers, etc. Compared with the related art where the label is a separate film pasted on the front and back of the battery cell, in this embodiment, since the hard shell battery cell 10 is used, the label information can be formed on the housing 11 of the hard shell battery cell 10 by one or more of the above manufacturing methods, which can prevent the label from occupying the installation space of the hard shell battery cell 10, ensure the volume of the hard shell battery cell 10, increase the capacity of the hard shell battery cell 10, and extend the battery life of the electronic device 1000 ( Figure 1 as shown).

[0076] In addition, in the related art, the battery cell, together with structures such as a plastic frame, a label and a mylar film, forms a closed space. During the charging and discharging process of the battery cell, the heat generated by the battery cell is difficult to conduct to the outside for heat dissipation, so it is easy to cause heat accumulation in the battery cell and lead to damage, affecting the service life of the battery cell. In the embodiment of the present application, since the battery cell is the hard shell battery cell 10, therefore, structures such as a plastic frame, a label and a mylar film do not need to be provided on the hard shell battery cell 10. In this way, the hard shell battery cell 10 can dissipate heat better, thereby reducing the possibility of damage to the hard shell battery cell 10 caused by heat accumulation, extending the service life of the hard shell battery cell 10, and ensuring the normal operation of the battery 100 and the electronic device 1000.

[0077] In addition, since the housing 11 is a metal shell, the heat conduction efficiency of the housing 11 is higher. During the charging and discharging process of the hard shell battery cell 10, the heat generated by the electrode assembly 13 can be transmitted to the outside through the housing 11 faster, thereby improving the heat dissipation efficiency of the hard shell battery cell 10.

[0078] Please refer to Figure 4and Figure 5 , in some embodiments, the battery 100 further includes a thermal fuse 30. The thermal fuse 30 is disposed in contact with the side wall of the housing 11 and is electrically connected to the tab 15. The dimension of the thermal fuse 30 in the length direction X of the hard case battery cell 10 is smaller than the dimension of the thermal fuse 30 in the width direction Y of the hard case battery cell 10 and the dimension of the thermal fuse 30 in the height direction Z of the hard case battery cell 10. It should be noted that, in some embodiments, the thermal fuse 30 can be a TCO (Thermal cutoffs) component.

[0079] Specifically, in some embodiments, the thermal fuse 30 is disposed on the side wall of the housing 11 in the length direction X of the hard case battery cell 10 and is electrically connected to the positive tab 151 of the hard case battery cell 10. Among them, the heat generated by the hard case battery cell 10 can be conducted to the thermal fuse 30 through the housing 11. When the heat generated by the hard case battery cell 10 is too high, the thermal fuse 30 can be disconnected, thereby cutting off the electrical connection between the hard case battery cell 10 and the circuit board 20, preventing the hard case battery cell 10 from being damaged by overheating, prolonging the service life of the hard case battery cell 10, and ensuring the safe use of the battery 100. It should be noted that, in some embodiments, when the temperature of the hard case battery cell 10 returns to the normal temperature, the thermal fuse 30 can return to its original state.

[0080] Among them, the dimension of the thermal fuse 30 in the length direction X of the hard case battery cell 10 is smaller than the dimension of the thermal fuse 30 in the width direction Y of the hard case battery cell 10 and the dimension of the thermal fuse 30 in the height direction Z of the hard case battery cell 10 (the thermal fuse 30 extends as a whole along the Z direction). In this way, compared with the case where the dimension of the thermal fuse 30 in the length direction X of the hard case battery cell 10 is larger than the dimension of the thermal fuse 30 in the width direction Y of the hard case battery cell 10 and the dimension of the thermal fuse 30 in the height direction Z of the hard case battery cell 10 (the thermal fuse 30 extends as a whole along the X direction), in the length direction X of the hard case battery cell 10, the space occupied by the thermal fuse 30 and the hard case battery cell 10 is the smallest, so as to ensure the volume of the hard case battery cell 10, increase the capacity of the hard case battery cell 10, and extend the battery life of the electronic device 1000 ( Figure 1 shown). Exemplarily, when the thermal fuse 30 is generally a cuboid, the plane formed by the long side and the wide side of the thermal fuse 30 is in contact with the end face of the housing 11 in the length direction X of the hard case battery cell 10. In this way, the space occupied by the thermal fuse 30 and the hard case battery cell 10 in the length direction X of the hard case battery cell 10 is the smallest.

[0081] It can be understood that in other embodiments, the dimension of the thermal fuse 30 in the length direction X of the hard-shell battery cell 10 can be smaller than any one of the dimension of the thermal fuse 30 in the width direction Y of the hard-shell battery cell 10 and the dimension of the thermal fuse 30 in the height direction Z of the hard-shell battery cell 10. In this way, the space occupied by the thermal fuse 30 and the hard-shell battery cell 10 in the length direction X of the hard-shell battery cell 10 can also be reduced.

[0082] In some embodiments, the thermal fuse 30 and the side wall of the housing 11 can be combined by a detachable connection method, and the detachable connection method includes but is not limited to threaded connection or snap connection, etc. In other embodiments, the thermal fuse 30 and the side wall of the housing 11 can be combined by a non-detachable connection method, and the non-detachable connection method includes but is not limited to bonding or welding, etc.

[0083] In the related art, non-hard-shell battery cells, such as polymer battery cells (soft-pack battery cells), etc., are limited by the process characteristics of the battery cells, and positions for sealing are reserved at the top and both sides of the housing. Therefore, the installation space of the electrode assembly in the housing will be occupied, which will lead to a decrease in the energy density of the battery cell and affect the battery life of the battery cell.

[0084] In some embodiments of the present application, the electrode assembly 13 abuts against at least a part of the inner wall of the housing 11. Specifically, in some embodiments, since the housing 11 is a metal shell, positions for sealing do not need to be reserved at the top and both sides of the housing 11. At this time, the electrode assembly 13 can abut against at least a part of the inner wall of the housing 11 (such as the inner wall of the top of the housing 11 or the inner wall of both sides of the housing 11), thereby preventing the installation space of the electrode assembly 13 in the housing 11 from being occupied, and thus the energy density of the hard-shell battery cell 10 can be increased and the battery life of the hard-shell battery cell 10 can be extended.

[0085] Please refer to Figure 1 、 Figure 3 and Figure 4 , in some embodiments, the peripheral side wall 114 includes a top wall 111, a bottom wall 113 opposite to the top wall 111, and side walls 115 connecting the top wall 111 and the bottom wall 113 in sequence, and the connecting body 51 is connected to at least one of the top wall 111, the bottom wall 113 and the side walls 115.

[0086] Specifically, in some examples, the connecting body 51 is connected to the side wall 115; or, the connecting body 51 is connected to all of the top wall 111, the bottom wall 113 and the side walls 115; or, the connecting body 51 is connected to the top wall 111; or, the connecting body 51 is connected to the bottom wall 113; or, the connecting body 51 is connected to both the top wall 111 and the side walls 115; or, the connecting body 51 is connected to both the bottom wall 113 and the side walls 115.

[0087] In some embodiments, the connecting member 50 further includes a connecting protrusion 53, which protrudes and extends away from the hard-shell battery cell 10 from the outer side of the connecting body 51, and the connecting protrusion 53 is used for connecting with an external device.

[0088] Specifically, in some embodiments, in the height direction Z of the hard-shell battery cell 10, the hard-shell battery cell 10 includes an opposite top wall 111 and bottom wall 113. Among them, the side wall 115 connects the top wall 111 and the bottom wall 113 and is located between the top wall 111 and the bottom wall 113. Since in the related art, the plastic frame includes a bottom wall and a peripheral wall, the peripheral wall extends from the periphery of the bottom wall and forms an installation groove together with the bottom wall, and the battery cell is located in the installation groove. Therefore, the setting of the plastic frame will occupy the setting space of the battery cell in the length direction, width direction and height direction of the battery cell. In this embodiment, when the connecting body 51 is connected to the side wall 115 of the hard-shell battery cell 10, compared with the plastic frame in the related art, the connecting member 50 does not occupy the space in the height direction Z of the hard-shell battery cell 10, so as to ensure the volume of the hard-shell battery cell 10, increase the capacity of the hard-shell battery cell 10, and extend the battery life of the electronic device 1000.

[0089] In some embodiments of the present application, the connecting member 50 is connected to the side wall 115. Specifically, the connecting body 51 is connected to the side wall 115, so that the mechanical connection between the hard-shell battery cell 10 and the external device can be realized.

[0090] In some embodiments, the connecting member 50 can be made of a metal material or a non-metal material. The metal materials include but are not limited to steel, stainless steel or iron, etc. The non-metal materials include but are not limited to plastics, etc. When the connecting member 50 is made of a metal material, compared with the plastic frame in the related art, a connecting member 50 with a smaller size can meet the connection strength, so that the setting space of the hard-shell battery cell 10 occupied by the connecting member 50 can be further reduced, so as to ensure the volume of the hard-shell battery cell 10, increase the capacity of the hard-shell battery cell 10, and extend the battery life of the electronic device 1000.

[0091] In some embodiments, the connecting protrusion 53 can include a plurality of them, and the plurality of connecting protrusions 53 are arranged at intervals, so that the hard-shell battery cell 10 can be stably installed on the external device. Further, in some embodiments, a connecting hole can be formed in the connecting protrusion 53, the connecting hole penetrates through the connecting protrusion 53, and a fastening member (such as a screw or a bolt, etc.) can pass through the connecting hole to connect the connecting member 50 to the external device.

[0092] Please refer to Figure 4 and Figure 5 , in some embodiments, the connecting body 51 includes a connecting portion 513, and the connecting portion 513 is arranged on the side wall 115.

[0093] Specifically, in some embodiments, in the length direction X of the hard shell battery cell 10, the side wall 115 includes a first side wall 1151 and a second side wall 1153 which face away from each other. In the width direction Y of the hard shell battery cell 10, the side wall 115 includes a third side wall 1155 and a fourth side wall 1157 which face away from each other. Among them, the connecting portion 513 can be arranged on at least one of the first side wall 1151, the second side wall 1153, the third side wall 1155 and the fourth side wall 1157, so that the mechanical connection between the hard shell battery cell 10 and an external device can be realized.

[0094] Exemplarily, when there are two first hard shell battery cells 17 and the two first hard shell battery cells 17 are arranged side by side in the width direction Y of the hard shell battery cell 10, the connecting portion 513 can be arranged on the third side wall 1155 and / or the fourth side wall 1157. That is, the connecting portion 513 can be welded to the third side wall 1155 and / or the fourth side wall 1157, and the connecting portion 513 can mechanically connect the hard shell battery cell 10 and an external device. In some embodiments of the present application, the connecting portion 513 is arranged on the third side wall 1155 and / or the fourth side wall 1157.

[0095] In some embodiments, the tab 15 of the hard shell battery cell 10 penetrates through the side wall 115. The connection body 51 includes a coupling portion 511. The coupling portion 511 is arranged on the first side wall 1151 or the second side wall 1153. In this way, the mechanical connection between the hard shell battery cell 10 and an external device can be realized.

[0096] Specifically, in some embodiments, the coupling portion 511 and the tab 15 can be respectively arranged on the first side wall 1151 and the second side wall 1153, so as to prevent the tab 15 from interfering with the arrangement of the coupling portion 511.

[0097] In one example, the coupling portion 511 is arranged on the second side wall 1153, and the tab 15 penetrates through the first side wall 1151. In another example, the coupling portion 511 is arranged on the first side wall 1151, and the tab 15 penetrates through the second side wall 1153. Among them, in the embodiments of the present application, only the example where the coupling portion 511 is arranged on the second side wall 1153 and the tab 15 penetrates through the first side wall 1151 is taken for illustration.

[0098] In some embodiments, the connection body 51 includes a connecting portion 513 and a coupling portion 511. The connecting portion 513 is arranged on the third side wall 1155 and / or the fourth side wall 1157. The coupling portion 511 is connected to the connecting portion 513, and the coupling portion 511 is arranged on the first side wall 1151 or the second side wall 1153. In this way, the mechanical connection between the hard shell battery cell 10 and an external device can be realized.

[0099] Exemplarily, when the first hard shell battery cell 17 includes two, and the two first hard shell battery cells 17 are arranged side by side in the width direction Y of the hard shell battery cell 10, the connecting member 50 includes two, and one of the two connecting members 50 includes one coupling portion 511 and two connecting portions 513, and the other of the two connecting members 50 includes one coupling portion 511 and one connecting portion 513. In this way, it can be prevented that when the two connecting members 50 are respectively connected to the two first hard shell battery cells 17, there are two connecting portions 513 between the two first hard shell battery cells 17. Thus, while ensuring the connection stability between the connecting member 50 and the hard shell battery cell 10, the space occupied by the connecting member 50 can be reduced, the volume of the hard shell battery cell 10 can be ensured, and the capacity of the hard shell battery cell 10 can be increased.

[0100] In some embodiments, the connecting protrusions 53 include a plurality of them, and the plurality of connecting protrusions 53 are arranged on the coupling portion 511 and / or the connecting portion 513. When the connecting protrusions 53 are arranged on the coupling portion 511, the connecting protrusions 53 protrude and extend away from the hard shell battery cell 10 from the outer side of the coupling portion 511; when the connecting protrusions 53 are arranged on the connecting portion 513, the connecting protrusions 53 protrude and extend away from the hard shell battery cell 10 from the outer side of the connecting portion 513. Among them, the arrangement of the plurality of connecting protrusions 53 can, on the one hand, reduce the possibility of the hard shell battery cell 10 falling off from the external device, and improve the stability and reliability of the operation of the electronic device 1000 ( Figure 1 as shown), and on the other hand, enable the connecting member 50 to be adaptively connected to different external devices, thereby improving the applicability of the battery 100.

[0101] It should be noted that in some embodiments, when the connecting protrusions 53 are arranged on the connecting portion 513, there are no connecting protrusions 53 on the connecting portion 513 arranged between the two hard shell battery cells 10. In this way, it can be prevented that the connecting protrusions 53 interfere with the arrangement of the hard shell battery cell 10, thereby ensuring the normal assembly of the battery 100. Among them, between the two hard shell battery cells 10 may include: between the two first hard shell battery cells 17; or, between the two second hard shell battery cells 19.

[0102] In some embodiments, the connecting protrusions 53 on the coupling portion 511 include at least one. Specifically, in some embodiments, the connecting protrusions 53 on the coupling portion 511 include one. In the width direction Y of the hard shell battery cell 10, the connecting protrusions 53 are arranged at the middle position of the coupling portion 511; or, the connecting protrusions 53 are arranged at any position of the coupling portion 511. In other embodiments, the connecting protrusions 53 on the coupling portion 511 include at least two. In the width direction Y of the hard shell battery cell 10, the at least two connecting protrusions 53 are arranged at intervals on the coupling portion 511.

[0103] The connecting protrusions 53 on the connecting portion 513 include at least one. Specifically, in some embodiments, the connecting protrusions 53 on the connecting portion 513 include one. In the length direction X of the hard shell battery cell 10, the connecting protrusion 53 is disposed at the middle position of the connecting portion 513; alternatively, the connecting protrusion 53 is disposed at any position of the connecting portion 513. In other embodiments, the connecting protrusions 53 on the connecting portion 513 include at least two. In the length direction X of the hard shell battery cell 10, the at least two connecting protrusions 53 are spaced apart and disposed on the connecting portion 513.

[0104] In certain embodiments of the present application, the coupling portion 511 is disposed on the first side wall 1151 or the second side wall 1153, and the connecting portion 513 is disposed on the third side wall 1155 and / or the fourth side wall 1157. Among them, when the hard shell battery cell 10 is a rectangular parallelepiped battery cell, the coupling portion 511 is disposed on the short side of the hard shell battery cell 10, and the connecting portion 513 is disposed on the long side of the hard shell battery cell 10. Therefore, the connecting protrusions 53 on the coupling portion 511 may include one, and the connecting protrusions 53 on the connecting portion 513 may include two, so that the adaptability of the connecting member 50 can be improved while ensuring the stability of the connection between the hard shell battery cell 10 and the external device.

[0105] In certain embodiments, the battery 100 further includes an easy-pull adhesive 70. The easy-pull adhesive 70 is disposed on the top wall 111 or the bottom wall 113, and the easy-pull adhesive 70 is used to connect the hard shell battery cell 10 to an external device. It should be noted that, in certain embodiments, the easy-pull adhesive 70 includes, but is not limited to, water-based easy-pull adhesives, oil-based easy-pull adhesives, acrylic easy-pull adhesives, etc.

[0106] It should be noted that, in some embodiments, the battery 100 may only include the connecting member 50, and the hard shell battery cell 10 is connected to the external device through the connecting member 50. In some embodiments, the battery 100 may only include the easy-pull adhesive 70, and the hard shell battery cell 10 is connected to the external device through the easy-pull adhesive 70. In some embodiments, the battery 100 includes the connecting member 50 and the easy-pull adhesive 70, and the hard shell battery cell 10 is connected to the external device under the combined action of the connecting member 50 and the easy-pull adhesive 70.

[0107] Please refer to Figure 4 , in certain embodiments, the battery 100 further includes a fixing member 60. The fixing member 60 is detachably disposed on the top wall 111 or the bottom wall 113. It should be noted that, in certain embodiments, the material of the fixing member 60 may be PET (polyethylene terephthalate).

[0108] Specifically, in some embodiments, the fixing member 60 is disposed on the top wall 111 or the bottom wall 113. In this way, the fixing member 60 can fix at least two hard shell battery cells 10, so that on the one hand, the shape of the battery 100 can be fixed; on the other hand, it can prevent the hard shell battery cells 10 from moving arbitrarily, resulting in the failure of the electrical connection between the hard shell battery cells 10 and the circuit board 20. It can be understood that in the case where the battery 100 includes the easy-open adhesive 70, the fixing member 60 and the easy-open adhesive 70 are respectively disposed on the top wall 111 and the bottom wall 113. For example, the fixing member 60 is disposed on the top wall 111, and the easy-open adhesive 70 is disposed on the bottom wall 113; for another example, the fixing member 60 is disposed on the bottom wall 113, and the easy-open adhesive 70 is disposed on the top wall 111. In the case where the battery 100 does not include the easy-open adhesive 70, the fixing member 60 is disposed on the top wall 111 or the bottom wall 113.

[0109] Please refer to Figures 1 to 4 , in some embodiments, the assembly steps of the battery 100 may be: connecting the thermal fuse 30 to the electrode 15 of the hard shell battery cell 10, and connecting the connecting member 50 to the housing 11 of the hard shell battery cell 10; then placing the hard shell battery cell 10 and the circuit board 20 on the assembly line, and positioning and fixing the circuit board 20 through auxiliary equipment; electrically connecting the hard shell battery cell 10 and the circuit board 20; disposing the fixing member 60 on the top wall 111 or the bottom wall 113 to fix the hard shell battery cell 10; and disposing the easy-open adhesive 70 on the bottom wall 113 or the top wall 111, thus completing the assembly of the battery 100.

[0110] The assembly steps of the battery 100 and an external device, such as a laptop computer, may be: placing the battery 100 in the receiving cavity of the laptop computer, bonding the battery 100 and the laptop computer together through the easy-open adhesive 70, and connecting the battery 100 and the laptop computer together through the connecting member 50; subsequently, electrically connecting the connection end of the circuit board 20 and the mating end in the laptop computer, thereby realizing the assembly of the battery 100 in the laptop computer. Wherein, when the assembly of the battery 100 on the external device is completed, the fixing member 60 can be removed. In this way, the fixing member 60 does not occupy the setting space of the hard shell battery cell 10 in the receiving cavity, so that the capacity of the hard shell battery cell 10 can be further increased.

[0111] It should be noted that, in some embodiments, the receiving cavity is disposed inside the main body 200 of the laptop computer, and the height direction of the receiving cavity is the same as the height direction Z of the hard shell battery 10, the length direction of the receiving cavity is the same as the length direction X of the hard shell battery 10, and the width direction of the receiving cavity is the same as the width direction Y of the hard shell battery 10. Thus, the shape of the receiving cavity is relatively matched with the shape of the battery 100, so as to improve the space utilization rate of the receiving cavity, that is, when the volume of the receiving cavity is certain, the receiving cavity can accommodate a battery 100 with a larger volume as much as possible.

[0112] It is understandable that the assembly steps of the battery 100 and the assembly steps of the battery 100 with external devices in the above embodiments are all exemplary descriptions. In other embodiments, the assembly steps of the battery 100 and the assembly steps of the battery 100 with external devices may also be in other forms, and no further examples will be given here.

[0113] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification. At the same time, other embodiments can be derived from the above embodiments, so that structural and logical substitutions and changes can be made without departing from the scope of the present disclosure.

[0114] The above-described embodiments only represent several embodiments of the present application, and the description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A battery (100), characterized in that, Comprising: At least two hard-shell battery cells (10); A circuit board (20), at least two of the hard-shell battery cells (10) being electrically connected to the circuit board (20); and A connector (50), the connector (50) including a connection body (51), a housing (11) of the hard-shell battery cell (10) including a peripheral side wall (114), the connection body (51) being connected to the peripheral side wall (114), the connector (50) being used for connecting the hard-shell battery cell (10) to an external device.

2. The battery (100) according to claim 1, characterized in that, The peripheral side wall (114) includes a top wall (111), a bottom wall (113) opposite to the top wall (111), and side walls (115) sequentially connecting the top wall (111) and the bottom wall (113), the connection body (51) being connected to at least one of the top wall (111), the bottom wall (113), and the side walls (115).

3. The battery (100) according to claim 2, characterized in that, The connector (50) further includes: A connection protrusion (53), the connection protrusion (53) protruding and extending away from the hard-shell battery cell (10) from the outside of the connection body (51), the connection protrusion (53) being used for connecting to the external device.

4. The battery (100) according to claim 2, characterized in that, The connector (50) is connected to the side wall (115).

5. The battery (100) according to claim 2, characterized in that, The connection body (51) includes: A connection portion (513), the connection portion (513) being disposed on the side wall (115).

6. The battery (100) according to claim 5, characterized in that, In the width direction of the hard-shell battery cell (10), the side wall (115) includes opposite third side walls (1155) and fourth side walls (1157), the connection portion (513) being disposed on the third side wall (1155) and / or the fourth side wall (1157).

7. The battery (100) according to any one of claims 2-6, characterized in that, In the length direction of the hard-shell battery cell (10), the side wall (115) includes opposite first side walls (1151) and second side walls (1153); the connection body (51) includes: A coupling portion (511), the coupling portion (511) being disposed on the first side wall (1151) or the second side wall (1153).

8. The battery (100) according to claim 2, characterized in that, The tab (15) of the hard-shell battery cell (10) penetrates through the side wall (115).

9. The battery (100) according to claim 1, characterized in that, The connector (50) is an independent structure disposed on the external device, and the connector (50) is adapted to be connected to the hard-shell battery cell (10).

10. The battery (100) according to claim 1, characterized in that, At least two of the hard-shell battery cells (10) are welded to the circuit board (20) to physically connect and electrically connect to each other at least two of the hard-shell battery cells (10) through the circuit board (20).

11. The battery (100) according to claim 1, characterized in that, The hard-shell battery cell (10) includes: A rigid housing (11); An electrode assembly (13), the electrode assembly (13) being disposed within the housing (11); and A tab (15), the tab (15) penetrating through the housing (11), one end of the tab (15) being electrically connected to the electrode assembly (13), and the other end being electrically connected to the circuit board (20).

12. The battery (100) according to claim 11, characterized in that, The housing (11) is a metal shell.

13. The battery (100) according to claim 11, characterized in that, Label information is formed on the housing (11).

14. The battery (100) according to claim 11, characterized in that, The battery (100) further includes: A thermal fuse (30) is provided, which is disposed in contact with the side wall of the housing (11) and electrically connected to the tab (15). The dimension of the thermal fuse (30) in the length direction of the hard shell battery cell (10) is smaller than the dimension of the thermal fuse (30) in the width direction of the hard shell battery cell (10) and the dimension of the thermal fuse (30) in the height direction of the hard shell battery cell (10).

15. The battery (100) according to claim 11, characterized in that, The electrode assembly (13) is in contact with at least a part of the inner wall of the housing (11).

16. The battery (100) according to claim 1, characterized in that, At least two of the hard shell battery cells (10) include a first hard shell battery cell (17) and a second hard shell battery cell (19). There is a gap between the first hard shell battery cell (17) and the second hard shell battery cell (19) in the length direction or the width direction of the hard shell battery cell (10). The tabs of the first hard shell battery cell (17) and the tabs of the second hard shell battery cell (19) are both located in the gap. The circuit board (20) is disposed in the gap and is electrically connected to the tabs of the first hard shell battery cell (17) and the tabs of the second hard shell battery cell (19).

17. The battery (100) according to claim 1, characterized in that, The battery (100) further includes: An insulating member (40) is disposed on the circuit board (20) and covers the electronic device (23) of the circuit board (20).

18. The battery (100) according to claim 1, characterized in that, In the height direction of the hard shell battery cell (10), the hard shell battery cell (10) includes an opposite top wall (111) and bottom wall (113); the battery (100) further includes: A fixing member (60) is detachably disposed on the top wall (111) or the bottom wall (113).

19. The battery (100) according to claim 1, characterized in that, In the height direction of the hard shell battery cell (10), the hard shell battery cell (10) includes an opposite top wall (111) and bottom wall (113); the battery (100) further includes: An easy-to-pull adhesive (70) is disposed on the top wall (111) or the bottom wall (113), and the easy-to-pull adhesive (70) is used to connect the hard shell battery cell (10) to an external device.

20. An electronic device (1000), characterized in that, Comprising: The battery (100) according to any one of claims 1-19.

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