Battery and electronic equipment

Abstract

The embodiment of the utility model provides a battery and electronic equipment. The battery comprises an insulating plate and a battery cell, the insulating plate is provided with a through hole, the first surface of the insulating plate is provided with a conductive layer covering the through hole, the through hole is filled with a conductor, and the conductive layer is used for being electrically connected with a load; a tab of the battery cell is connected to the through hole in the second surface of the insulating plate and is electrically connected with the conductive layer through a conductor; the first surface is opposite to the second surface. According to the utility model, a current path between the battery cell and the external load is formed by the electric conductor and the conductive layer which are arranged on the insulating plate, and an electronic component for controlling a circuit and a PCM (Pulse Code Modulation) protection plate do not need to be integrated in the battery, so that the packaging size of the battery is reduced, and the space size saved is favorable for improving the capacity of the battery.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery manufacturing, and specifically relates to a battery and electronic equipment. Background Art

[0002] The batteries of electronic devices such as mobile phones and tablets are composed of a PCM (Protection Circuit Module) protection board, polymer battery cells and insulating tape. Among them, PCM is an integrated circuit board that protects the charging and discharging of the battery cells.

[0003] The consumer market has higher and higher requirements for battery capacity, so it is crucial to reduce the size of the battery packaging structure, especially the size of the battery head, to increase the space inside the battery to accommodate the battery cells. However, a large number of electronic components are integrated on the PCM protection board. Based on the current electronic components and PCM protection board manufacturing process, there is currently no room for greater adjustment of the battery packaging size.

[0004] The prior art has the following defects: the PCM protection board occupies the battery, especially the head packaging space, which makes the battery packaging size larger and is not conducive to improving the battery capacity. Utility Model Content

[0005] The purpose of the embodiments of the utility model is to provide a battery and an electronic device, which can solve the problem in the prior art that the PCM protection board occupies a large battery space.

[0006] In order to solve the above technical problems, the utility model is achieved as follows:

[0007] On the one hand, an embodiment of the utility model provides a battery, including an insulating plate and a battery cell;

[0008] The insulating plate is provided with a through hole, the first surface of the insulating plate is provided with a conductive layer covering the through hole, the through hole is filled with a conductor, and the conductive layer is used to electrically connect a load;

[0009] The tab of the battery cell is connected to the through hole on the second surface of the insulating plate, and the tab is electrically connected to the conductive layer through the conductor;

[0010] The first surface is arranged opposite to the second surface.

[0011] Optionally, a first conductive layer and a second conductive layer are arranged on the first surface of the insulating plate;

[0012] The through holes at the first conductive layer and the through holes at the second conductive layer are arranged at intervals;

[0013] The electrode tabs include a positive electrode tab and a negative electrode tab. The positive electrode tab is electrically connected to the first conductive layer, and the negative electrode tab is electrically connected to the second conductive layer.

[0014] Optionally, the pole ear is in a U-shaped bend.

[0015] Optionally, the battery further comprises a conductive sheet connected between the electrode tab and the second surface of the insulating plate.

[0016] Optionally, a top seal portion is extended from the end face of the battery cell, the top seal portion is parallel to the end face of the battery cell, the pole ear extends out of the battery cell from the top seal portion, the pole ear is bent along the length direction of the battery cell, and the insulating plate is spaced apart from the end face of the battery cell.

[0017] Optionally, a top seal portion is extended from the end face of the battery cell, the top seal portion is perpendicular to the end face of the battery cell, the pole ear extends out of the battery cell from the top seal portion, the pole ear is bent along the thickness direction of the battery cell, and the insulating plate is connected to the end face of the battery cell.

[0018] Optionally, the battery further comprises a filling glue;

[0019] The filling glue is coated on the outside of the battery core and the insulating plate, and the filling glue is provided with an opening to avoid the conductive layer.

[0020] Optionally, the thickness of the insulating plate is t1, and t1≤0.3 mm.

[0021] Optionally, the thickness of the filling glue is t2, and t2≤0.8mm.

[0022] On the other hand, an embodiment of the present invention provides an electronic device, comprising any battery as described above.

[0023] In an embodiment of the utility model, the battery includes an insulating plate and a battery cell. The insulating plate has two opposite surfaces, which are respectively connected to the first surface and the second surface. The insulating plate is provided with a through hole along the thickness direction. The through hole is filled with a conductor. The end of the through hole located on the first surface is covered with a conductive layer, and the conductive layer is used to be electrically connected to the load. The end of the through hole located on the second surface is connected to the pole ear of the battery cell. That is, the pole ear is electrically connected to the conductive layer through the conductor, and the current at the electrode end of the battery cell is led to the load through the pole ear, the conductor and the conductive layer to meet the electronic load requirements. The battery provided by the embodiment of the utility model uses the insulating plate as a structural support, and the conductor and the conductive layer arranged on the insulating plate constitute the current path between the battery cell and the external load. It is not necessary to integrate the electronic components and PCM protection board for the control circuit inside the battery, and the PCM protection board and the electronic components can be integrated on the electronic device by the terminal. Therefore, the packaging space occupied by the electronic components integrated inside the battery, especially near the end position, is reduced, and the saved packaging space is conducive to improving the battery capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the first battery structure provided by the embodiment of the utility model;

[0025] Figure 2 This utility model embodiment Figure 1 A partial enlarged schematic diagram of the middle Ⅰ position;

[0026] Figure 3 This utility model embodiment Figure 1 A partial enlarged schematic diagram of the middle II position;

[0027] Figure 4 This is a schematic diagram of the structure of the battery cell tabs in the first battery structure provided by the embodiment of the utility model;

[0028] Figure 5 It is a schematic diagram of the connection structure of the insulating plate, the conductive sheet and the tab in the first battery structure provided by the embodiment of the utility model;

[0029] Figure 6 This is a schematic diagram of the front structure of the insulation board in the embodiment of the utility model;

[0030] Figure 7 This is a schematic diagram of the back structure of the insulating plate in the embodiment of the utility model;

[0031] Figure 8 This is a schematic diagram of a second battery structure provided by an embodiment of the utility model;

[0032] Fig. 9 This utility model embodiment Figure 8 A partial enlarged schematic diagram of the middle III position;

[0033] Fig.10 In the present utility model embodiment Figure 8 Plan view along direction A;

[0034] Fig.11 It is a schematic diagram of the battery packaging structure of an embodiment of the utility model.

[0035] Reference numerals:

[0036] 1-insulating plate, 101-through hole, 101a-first through hole, 101b-second through hole, 11-conductive layer, 11a-first conductive layer, 11b-second conductive layer, 2-battery cell, 21-ear, 22-top sealing part, 21a-positive electrode ear, 21b-negative electrode ear, 3-conductive sheet, 31-first conductive part, 32-second conductive part, 4-filling glue. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] The terms "first", "second", etc. in the specification and claims of the present utility model are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the utility model can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0039] The utility model embodiment provides a battery, referring to Figure 1 and Figure 2 , the battery comprises an insulating plate 1 and a battery cell 2;

[0040] The insulating plate 1 is provided with a through hole 101, the first surface of the insulating plate 1 is provided with a conductive layer 11 covering the through hole 101, the through hole 101 is filled with a conductor, and the conductive layer 11 is used to electrically connect a load;

[0041] The tab 21 of the battery cell 2 is connected to the through hole 101 on the second surface of the insulating plate 1, and the tab 21 is electrically connected to the conductive layer 11 through the conductor;

[0042] The first surface is arranged opposite to the second surface.

[0043] Specifically, if Figure 1 and Figure 2 The battery structure and partial position enlarged schematic diagram provided in this embodiment are shown, and the battery includes an insulating plate 1 and a battery cell 2. The insulating plate 1 can insulate and isolate the battery cell 2 from external electrical equipment to avoid short circuit leakage, and has a certain hardness, which can play a fixed support role. The material of the insulating plate 1 includes but is not limited to glass fiber board, carbon fiber board or epoxy board. For example, the insulating plate 1 is made of glass fiber board, which is synthesized from glass fiber material and a composite material with good heat resistance, and has good mechanical properties. Figure 6 and Figure 7 As shown, a through hole 101 is opened along the thickness direction of the insulating plate 1, and the process method of opening the through hole 101 includes but is not limited to mechanical opening, hot melt opening or chemical etching opening. The number of through holes 101 can be set to one, two or more, but for the structural strength of the insulating plate 1, the number of through holes 101 should not be too many. The cross-sectional area of ​​the through hole 101 is circular, which is convenient for processing. At the same time, a conductor is filled in the through hole 101. The conductor is made of metal, including but not limited to gold, silver, copper or tin. In this embodiment, a copper conductor is used. The insulating plate 1 is provided with a first surface and a second surface along the thickness direction. The first surface, i.e., the upper surface of the insulating plate 1, is provided with a conductive layer 11, and the conductive layer 11 covers one end of the through hole 101. The conductive layer 11 can be a conductive coating, which is applied to the first surface of the insulating plate 1, or a conductive block, which is welded to the first surface of the insulating plate 1. The conductive layer 11 is used to contact the electrode contact of the load and form an electrical connection with the load. The material of the conductive layer 11 includes but is not limited to gold, silver, copper or tin. In this embodiment, a copper conductive layer is used. Exemplarily, the conductive layer 11 can be formed on the upper surface of the insulating plate 1 by electroplating or spraying. In some embodiments, the conductive layer 11 can be firstly arranged on the first surface of the insulating plate 1, and then the through hole 101 can be opened at the corresponding position of the conductive layer 11 of the insulating plate 1 and filled with the conductor, or the through hole 101 can be firstly opened inside the insulating plate 1, and then the conductive layer 11 can be arranged on the first surface of the insulating plate 1 to cover the through hole 101, both of which realize the contact and electrical connection between the conductor and the conductive layer 11. The tab 21 protrudes from the end face of the battery cell 2, and is used to communicate the battery cell electrode with the external circuit. The insulating plate 1 is arranged close to the end face of the battery cell 2. The pole ear 21 is connected to the second surface of the insulating plate 1, and the pole ear 21 is at least partially connected to one end of the through hole 101, so that the pole ear 21 is electrically connected to the conductor in the through hole 101, and then electrically connected to the conductive layer 11 through the conductor, so that the current at the electrode end of the battery cell 2 is conducted to the load through the pole ear 21, the conductor and the conductive layer 11. Therefore, the conductor and the conductive layer 11 arranged on the insulating plate 1 provide the function of current flow between the battery cell 2 and the load, thereby realizing the charging and discharging of the current.

[0044] The battery provided by the embodiment of the utility model provides a current path between the battery cell 2 and the external load through the conductor and the conductive layer 11 on the insulating plate 1, and it is not necessary to set electronic components and PCM protection boards for controlling the circuit inside the battery, and the PCM protection board and electronic components can be integrated into the electronic device. Therefore, it is avoided to integrate a large number of electronic components inside the battery, especially near the end position, and the battery packaging space is reduced. The saved packaging size is conducive to improving the battery capacity.

[0045] Optionally, refer to Figure 1 Figure 5 , the first surface of the insulating plate 1 is provided with a first conductive layer 11a and a second conductive layer 11b;

[0046] The through hole 101 at the first conductive layer 11a is spaced apart from the through hole 101 at the second conductive layer 11b;

[0047] The electrode tab 21 includes a positive electrode tab 21 a and a negative electrode tab 21 b . The positive electrode tab 21 a is electrically connected to the first conductive layer 11 a , and the negative electrode tab 21 b is electrically connected to the second conductive layer 11 b .

[0048] Specifically, Figure 5 The schematic diagram of the connection structure between the insulating plate 1, the conductive sheet 3 and the pole ear 21 in the embodiment of the utility model is shown. The pole ear 21 includes a positive pole ear 21a and a negative pole ear 21b. The positive pole ear 21a leads the current of the positive end of the battery cell 2, and the negative pole ear 21b leads the current of the negative end of the battery cell 2. For lithium batteries, the positive pole ear is made of aluminum, and the negative pole ear is made of aluminum, nickel or nickel-copper alloy. The insulating plate 1 is provided with through holes 101 at the connection with the positive pole ear 21a and the negative pole ear 21b, which are the first through hole 101a and the second through hole 101b respectively. The first surface of the insulating plate 1 is spaced apart with a first conductive layer 11a and a second conductive layer 11b insulated from each other, the first through hole 101a is located at the first conductive layer 11a, and the second through hole 101b is located at the second conductive layer 11b. The first through hole 101a and the second through hole 101b are spaced apart and are filled with a conductor. The number of the first through hole 101a and the second through hole 101b can be one, two or more. The first conductive layer 11a covers the first through hole 101a, and the second conductive layer 11b covers the second through hole 101b, so that the first conductive layer 11a is electrically connected to the positive electrode tab 21a, and the second conductive layer 11b is electrically connected to the negative electrode tab 21b, forming a closed current path between the positive and negative ends of the battery cell and the external load. The interval between the first conductive layer 11a and the second conductive layer 11b is insulated to prevent current conduction between the two, causing the battery to short-circuit and ignite.

[0049] Optionally, refer to Figure 2 and Figure 8 The pole ear 21 is in a U-shaped bending shape.

[0050] Specifically, the tab 21 is in a "U"-shaped bending shape, and can be bent by applying a punching force on one side of the tab 21, and can be bent in different directions. Specifically, Figure 2 The first battery structure provided by the embodiment of the utility model is shown. In this structure, the tab 21 is bent along the length direction of the battery cell 2 to form a "U"-shaped structure. The insulating plate 1 is spaced apart from the battery cell 2. In this embodiment, the insulating plate 1 is spaced apart from the battery cell 2 and is parallel to the battery cell 2. This structure saves space in the length direction of the battery. Figure 8 The second battery structure provided by the embodiment of the utility model is shown. In this structure, the tab 21 is bent along the thickness direction of the battery cell 2 to form a "U"-shaped structure. The insulating plate 1 is plugged into the deep pit surface at the end of the battery cell 2. The surface of the insulating plate 1 can be perpendicular to the end surface of the battery cell 2 or form a certain angle. In this embodiment, the surface of the insulating plate 1 can be perpendicular to the end surface of the battery cell 2, that is, vertical plugging. This structure saves the space size in the thickness direction of the battery.

[0051] Therefore, in this embodiment, by bending the tab 21 into a "U" shape, the packaging space of the battery is saved, including the spatial dimensions along the length or thickness direction of the battery, so as to facilitate the improvement of the battery capacity.

[0052] Optionally, refer to Figure 2 and Figure 8 The battery further includes a conductive sheet 3 , and the conductive sheet 3 is connected between the electrode tab 21 and the second surface of the insulating plate 1 .

[0053] Specifically, if Figure 2 and Figure 8 As shown, the conductive sheet 3 is made of metal including but not limited to copper, aluminum or nickel. The embodiment of the utility model adopts a nickel sheet. The conductive sheet 3 is connected between the pole ear 21 and the second surface of the insulating plate 1. The nickel sheet can effectively control the voltage, balance the charge state of the battery cell 2 during the charging and discharging process of the battery cell, and provide a current path between the battery cell 2 and the external electrical equipment. The conductive sheet 3 is welded to the pole ear 21 and the insulating plate 1 respectively. The conductive sheet 3 includes a first conductive portion 31 and a second conductive portion 32, as shown in FIG. Figure 3As shown, the conductive sheet 3 is in an "L" shape before being bent, and the first conductive part 31 and the second conductive part 32 are perpendicular to each other. In some embodiments, the first conductive part 31 and the pole ear 21 are welded, and then the first conductive part 31 and the second conductive part 32 are folded in half, so that the end of the pole ear 21 close to the insulating plate 1 is sandwiched between the first conductive part 31 and the second conductive part 32, and the second conductive part 32 is aligned with the through hole 101. A conductive body can be formed in the through hole 101 by setting a conductive glue or melting and welding at the through hole 101, and the conductive sheet 3 is electrically connected to the conductive body and the conductive layer 11 to form a current path. Folding the conductive sheet 3 can strengthen the connection between the conductive sheet 3 and the pole ear 21 and the insulating plate 1 on the one hand, and reduce the internal space size of the battery on the other hand. The saved size is conducive to increasing the battery capacity.

[0054] Optionally, refer to Figure 1 and Figure 2 A top seal portion 22 is extended from the end face of the battery cell 2, and the end face of the battery cell 2 is parallel to the top seal portion 22. The pole ear 21 extends from the top seal portion 22 to the battery cell 2, and the pole ear 21 is bent along the length direction of the battery cell 2. The insulating plate 1 is spaced apart from the end face of the battery cell 2.

[0055] Specifically, if Figure 1 and Figure 2 As shown, the battery cell 2 is composed of a packaging component and a bare battery cell. The shape of the packaging component is consistent with the shape of the bare battery cell, and the packaging component is coated on the outside of the bare battery cell. The packaging component is provided with a top seal 22 at the end face of the battery cell 2. The top seal 22 is perpendicular to the end face of the battery cell 2 in a natural unbent state. The pole ear 21 is at least partially coated in the top seal 22, one end of the pole ear 21 is connected to the bare battery cell, and the other end extends out of the top seal 22. The pole ear 21 includes a metal matrix and a pole ear glue, and the pole ear glue is arranged between the metal matrix and the top seal 22 to prevent the metal matrix from being scratched by the top seal 22. The battery cell 2 of the embodiment of the utility model selects a polymer battery cell, so the packaging component adopts an aluminum-plastic material to realize soft package packaging. The aluminum-plastic packaging component provides a reaction space for the electrolyte in the battery cell, and has good barrier properties, electrolyte stability, cold stamping formability, puncture resistance and insulation. This embodiment uses a packaging component to protect the bare battery cell to ensure the structural integrity and safety of the battery cell.

[0056] Specifically, if Figure 1 and Figure 2As shown, in the first battery structure provided by the embodiment of the utility model, the top seal portion 22 is bent to be parallel to the end face of the battery cell 2, that is, the deep pit surface, and the portion of the pole lug 21 extending out of the top seal portion 22 is bent in a "U" shape along the length direction of the battery cell 2, and the corresponding pole lug 21 is sandwiched between the first conductive portion 31 and the second conductive portion 32 at one end close to the insulating plate 1, and the first conductive portion 31 and the second conductive portion 32 are parallel to the end face of the battery cell 2. The insulating plate 1 is spaced apart from the battery cell 2, and this structure saves the space size in the length direction of the battery.

[0057] Optionally, refer to Figures 8 to 10 A top seal portion 22 is extended from the end face of the battery cell 2, and the end face of the battery cell 2 is perpendicular to the top seal portion 22. The pole ear 21 extends out of the battery cell 2 from the top seal portion 22, and the pole ear 21 is bent along the thickness direction of the battery cell 2. The insulating plate 1 is connected to the end face of the battery cell 2.

[0058] Specifically, if Figures 8 to 10 As shown, in the second battery structure provided by the embodiment of the utility model, the top seal 22 is in a natural state without being bent, and the top seal 22 is perpendicular to the end face of the battery cell 2. The upper end of the top seal 22 extends out a pole ear 21, which is bent in a "U" shape along the thickness direction of the battery cell 2. The insulating plate 1 is vertically inserted into the deep pit surface of the battery cell 2, and the surface of the insulating plate 1 is perpendicular to the end face of the battery cell 2. The end of the pole ear 21 close to the insulating plate 1 is sandwiched between the first conductive part 31 and the second conductive part 32, and the first conductive part 31 and the second conductive part 32 are perpendicular to the end face of the battery cell 2. This structure reduces the size of the battery in the thickness direction.

[0059] Optionally, refer to Figure 1 and Fig.11 , the battery also includes a filling glue 4;

[0060] The filling glue 4 is coated on the outside of the battery core 2 and the insulating plate 1 , and the filling glue 4 is provided with an opening to avoid the conductive layer 11 .

[0061] Specifically, if Figure 1 and Fig.11 As shown, after the connection between the tab 21, the conductive sheet 3 and the insulating plate 1 is completed, a filling glue 4, i.e., a hot melt glue, is formed on the outside of the battery cell 2 and the insulating plate 1 by a low-pressure injection molding method, thereby forming a battery packaging structure. The injection molding method can improve the mechanical stability of the battery packaging structure and improve the ease of installation of the battery and electronic equipment. The filling glue 4 is provided with an opening at the end of the battery to avoid exposing the conductive layer 11, so as to facilitate the electrical connection between the conductive layer 11 and the load.

[0062] In some implementations, the following method steps may be used to form the first battery structure provided in this embodiment:

[0063] Step 1: The top sealing portion 22 is bent to the deep pit surface of the battery cell 2 .

[0064] Step 2: Fold the conductive sheet 3 in half and weld it to the insulating plate 1 and the tab 21 of the battery cell 2 .

[0065] Step 3: bend the tab 21 of the battery cell 2 into a "U" shape along the length direction of the battery cell 2 so that the insulating plate 1 is parallel to the end surface of the battery cell 2.

[0066] Step 4: Inject hot melt adhesive to encapsulate the battery as a whole.

[0067] In some implementations, the following method steps may be used to form the second battery structure provided in this embodiment:

[0068] Step 1: Fold the conductive sheet 3 in half and weld it to the insulating plate 1 and the tab 21 of the battery cell 2.

[0069] Step 2: bend the tab 21 of the battery cell 2 into a “U” shape along the thickness direction of the battery cell 2 , so that the insulating plate 1 is vertically inserted into the groove of the deep pit surface of the battery cell 2 .

[0070] Step 3: Inject hot melt adhesive to encapsulate the battery as a whole.

[0071] Optionally, refer to Figure 2 and Figure 3 , the thickness of the insulating plate 1 is t1, t1≤0.3mm.

[0072] Specifically, if Figure 2 and Figure 3 As shown, the thickness of the insulating plate 1 is t1, t1≤0.3mm. The smaller the thickness, the easier it is to save battery packaging space, but the insulating plate 1 must have a certain supporting strength. When the conductive layer 11 is a conductive block with a certain thickness, the sum of the thickness of the conductive layer 11 and the insulating plate 1 is t1, t1≤0.3mm.

[0073] Optionally, the thickness of the filling glue 4 is t2, and t2≤0.8 mm.

[0074] Specifically, if Figure 2 and Figure 3As shown, the thickness of the filling glue 4 is t2, t2≤0.8mm. In addition, in the first battery structure, along the thickness direction of the battery cell 2, the gap between the top seal 22 and the deep pit surface of the battery cell 2 is t3, t3≤0.5mm, the sum of the thickness between the conductive sheet 3 and the pole ear 21 is t4, t4≤0.5mm, and the thickness of the top seal 22 is t5, t5≤0.3mm. Therefore, along the length direction of the battery cell, the maximum package size of the battery in the first structure at the end face of the battery cell 2 is 2.4mm. In the prior art, the width of the PCM protection plate in the direction perpendicular to the end face of the battery cell 2 is 3mm to 8mm. In comparison, the battery adopting this structure can save 0.6mm to 5.6mm in the length direction, reduce the size of the battery packaging structure in the length direction, save space, and help increase the battery capacity.

[0075] An embodiment of the utility model further provides an electronic device, comprising the battery described in any one of the above embodiments.

[0076] The electronic device provided in the embodiment of the utility model is a 3C (computer, communication, consumer) electronic device, including computer products, communication products and consumer electronic products, such as laptops, tablet computers, cameras, mobile phones, digital audio players, wireless data communication equipment, video game equipment, smart wearable devices, etc. The electronic device adopts the battery of any of the above embodiments, and provides a current path between the battery cell and the external load through the conductor and the conductive layer on the insulating plate. It is not necessary to set electronic components and PCM protection boards for controlling the circuit inside the battery, and the PCM protection board and electronic components can be integrated into the electronic device. Therefore, it is avoided to integrate a large number of electronic components inside the battery, especially near the end position, and the battery packaging space is reduced. The saved packaging size is conducive to increasing the battery capacity. In turn, the battery life of the electronic device is improved to meet the use requirements of more scenarios.

[0077] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0078] The embodiments of the utility model are described above in conjunction with the accompanying drawings, but the utility model is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the utility model, ordinary technicians in this field can also make many forms without departing from the scope of protection of the utility model and the claims, all of which are within the protection of the utility model.

Claims

1. A battery, characterized in that: It comprises an insulating plate (1) and a battery cell (2); The insulating plate (1) is provided with a through hole (101), the first surface of the insulating plate (1) is provided with a conductive layer (11) covering the through hole (101), the through hole (101) is filled with a conductor, and the conductive layer (11) is used for electrically connecting a load; The pole lug (21) of the battery cell (2) is connected to the through hole (101) on the second surface of the insulating plate (1), and the pole lug (21) is electrically connected to the conductive layer (11) through the conductor; The first surface is arranged opposite to the second surface.

2. The battery according to claim 1, characterized in that A first conductive layer (11a) and a second conductive layer (11b) are arranged at intervals on the first surface of the insulating plate (1); The through hole (101) at the first conductive layer (11a) and the through hole (101) at the second conductive layer (11b) are arranged at intervals; the electrode tab (21) comprises a positive electrode tab (21a) and a negative electrode tab (21b); the positive electrode tab (21a) is electrically connected to the first conductive layer (11a), and the negative electrode tab (21b) is electrically connected to the second conductive layer (11b).

3. The battery according to claim 1, characterized in that The pole ear (21) is in a U-shaped bending shape.

4. The battery according to claim 1, characterized in that The battery further comprises a conductive sheet (3), wherein the conductive sheet (3) is connected between the electrode tab (21) and the second surface of the insulating plate (1).

5. The battery according to claim 3, characterized in that A top seal portion (22) is extended from the end face of the battery cell (2), the top seal portion (22) is parallel to the end face of the battery cell (2), the pole ear (21) extends from the top seal portion (22) out of the battery cell (2), the pole ear (21) is bent along the length direction of the battery cell (2), and the insulating plate (1) is spaced apart from the end face of the battery cell (2).

6. The battery according to claim 3, characterized in that A top seal portion (22) is extended from the end face of the battery cell (2), the top seal portion (22) is perpendicular to the end face of the battery cell (2), the pole ear (21) extends from the top seal portion (22) out of the battery cell (2), the pole ear (21) is bent along the thickness direction of the battery cell (2), and the insulating plate (1) is connected to the end face of the battery cell (2).

7. The battery according to claim 5 or 6, characterized in that: The battery also includes a filling glue (4); The filling glue (4) is coated on the outside of the battery core (2) and the insulating plate (1), and the filling glue (4) is provided with an opening that avoids the conductive layer (11).

8. The battery according to claim 4 or 5, characterized in that: The thickness of the insulating plate (1) is t1, and t1≤0.3 mm.

9. The battery according to claim 7, characterized in that The thickness of the filling glue (4) is t2, t2≤0.8mm.

10. An electronic device, characterized in that: A battery comprising any one of claims 1 to 9.

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