Battery shell and battery

Abstract

The utility model relates to a battery shell and a battery. The battery case comprises a case body and a cover body. Wherein the shell comprises a side plate and a bottom plate, the side plate comprises a plurality of bending parts, and the side plate is formed by bending the plurality of bending parts so as to enclose a shell frame with openings in two ends; and the bottom plate covers the opening at one end of the shell frame and is connected with the shell frame. The cover body comprises a cover plate, a conductive assembly and a bonding piece, and the cover plate covers the opening in the other end of the shell frame; the conductive assembly is laid on the surface of the cover plate, and part or all of the conductive assembly is connected with the cover plate through the bonding piece. According to the battery shell and the battery, the side plates of the shell can be bent along the bending parts to enclose the shell frame, and are matched with the bottom plate to form the shell, so that the shell can be quickly formed without a mold, and the time and the cost required for manufacturing the shell and the battery are saved; the conductive assembly for leading out the positive and negative electrodes on the cover body is adhered to the surface of the cover plate through the adhesive and can be directly fixed on the cover plate, so that the thickness of the cover plate can be reduced to improve the volume of the battery shell and the capacity of the battery.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of batteries, in particular to a battery shell and a battery. BACKGROUND

[0002] With the development of battery technology, metal materials are widely used in the manufacturing of battery shells, and the shells made of metal materials can provide stable support and protection for battery cells.

[0003] In the related art, a battery shell is usually divided into two parts: a shell body and a cover body, wherein the shell body is made by punching the shell. This manufacturing method requires the development of different molds according to different product sizes when manufacturing the shell body. The manufacturing cycle of a set of molds is usually 2-3 months, and the required time is longer if the debugging and design time is added. Therefore, for the production and manufacturing of battery shells, the shell body is made by punching the shell, which requires a long period of time and is time-consuming, and the manufacturing of molds consumes a large amount of mold opening cost, increasing the manufacturing cost of products. In addition, the positive and negative poles of the battery need to be fixed on the cover body by riveting, which requires the cover plate to have a certain thickness for fixing the poles. This method reduces the space inside the battery and limits the capacity of the battery. CONTENT OF THE UTILITY MODEL

[0004] Therefore, it is necessary to provide a battery shell and a battery to solve the problems of long production process and high cost of the shell body and small capacity of the battery.

[0005] In one aspect, the application provides a battery shell, which comprises a shell body and a cover body. The shell body comprises a side plate and a bottom plate. The side plate comprises a plurality of bending parts, and the side plate is bent and formed through the plurality of bending parts to form a shell frame with openings at both ends. The bottom plate is arranged at the opening of one end of the shell frame and connected with the shell frame. The cover body comprises a cover plate, a conductive component and an adhesive. The cover plate is arranged at the opening of the other end of the shell frame. The conductive component is arranged on the surface of the cover plate, and all or part of the conductive component is connected with the cover plate through the adhesive.

[0006] Preferably, an electrode hole is arranged on the surface of the cover plate, and the electrode hole penetrates the cover plate. All or part of the conductive component is connected with the electrode hole through the adhesive.

[0007] Further, the adhesive is arranged between the conductive component and the cover plate to connect the conductive component and the cover plate. The surface of the adhesive is provided with a through hole corresponding to the electrode hole, and part of the structure of the conductive component is exposed from the through hole and the electrode hole.

[0008] Preferably, the cover plate surface is provided with a liquid injection hole, and the liquid injection hole penetrates the cover plate.

[0009] Preferably, the cover further comprises an explosion-proof groove, and the explosion-proof groove is arranged on the surface of the cover plate.

[0010] Preferably, the end of the shell frame in contact with the cover plate is provided with a mounting groove, and the cover plate is matched with the mounting groove.

[0011] Further, the mounting groove is a stepped groove.

[0012] In another aspect, the application also provides a battery comprising the above-mentioned battery shell, wherein the inside of the battery shell is provided with a containing cavity; the battery further comprises an electric core arranged in the containing cavity; and the conductive assembly is electrically connected with the electric core.

[0013] Preferably, the conductive assembly comprises a positive electrode sheet and a negative electrode sheet, the positive electrode sheet and the negative electrode sheet are respectively electrically connected with the positive electrode of the electric core and the negative electrode of the electric core, and the positive electrode sheet and / or the negative electrode sheet are connected to the surface of the cover plate through the adhesive.

[0014] Further, the adhesive is an electrically insulating material.

[0015] The above-mentioned battery shell and battery, the side plate is bent through the bending part to form a shell frame with openings at both ends; the bottom plate cover is arranged at the opening of one end of the shell frame and closes the opening, at this time, the side plate and the bottom plate form a shell with one side opening. The above-mentioned shell can directly bend the side plate through the bending part to form a shell frame, cooperate with the bottom plate to form a shell, without the need of mold, it can be quickly formed, saving the time and cost required for the production of the shell and the battery; the conductive assembly leading out the positive and negative electrodes on the cover is pasted on the surface of the cover plate through the adhesive, the conductive assembly can be directly fixed on the surface of the cover plate without riveting, and the volume of the battery shell and the capacity of the battery can be improved by reducing the thickness of the cover plate. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is an exploded structure diagram of a battery of one embodiment of the battery shell and battery of the application.

[0017] Figure 2 It is a structure diagram of the side plate of the battery shell before bending of one embodiment of the battery shell and battery of the application.

[0018] Figure 3 It is an exploded structure diagram of the cover of the battery shell of one embodiment of the battery shell and battery of the application.

[0019] Figure 4 It is an exploded structure diagram of the cover of the battery shell of another embodiment of the battery shell and battery of the application.

[0020] Figure 5 Figure 1 is a schematic diagram of a side view of an embodiment of a battery shell and a battery according to the present application.

[0021] Figure 6 Figure 2 is a schematic diagram of an exploded view of another embodiment of a battery shell and a battery according to the present application.

[0022] In the figures, 100 is a shell, 110 is a side plate, 111 is a bent portion, 112 is a mounting groove, 120 is a bottom plate, 200 is a cover, 210 is a cover plate, 211 is an electrode hole, 212 is a liquid injection hole, 213 is an anti-explosion groove, 220 is a conductive assembly, 221 is a positive electrode sheet, 222 is a negative electrode sheet, 230 is an adhesive, and 300 is an electrode core. DETAILED DESCRIPTION

[0023] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different ways beyond the specific embodiments described and it is to be understood that the present application is not limited in this regard. In other instances, well-known methods have not been described in detail in order to avoid unnecessarily obscuring the present application.

[0024] In the description of the present application, it should be understood that, if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0025] In the present application, unless otherwise explicitly specified and limited, if there are terms such as "mounting", "connection", "connection", "fixing", etc., these terms should be understood in a broad sense. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] In the present application, unless otherwise explicitly specified and limited, if there is a description such as "on" or "under" of the first feature to the second feature, etc., it means that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0027] Referring to Figure 1 , Figure 1 The structure disassembly schematic diagram of the battery in an embodiment of the present application is shown, and the battery shell provided by the embodiment of the present application includes a shell body 100 and a cover body 200. The shell body 100 includes a side plate 110 and a bottom plate 120. The side plate 110 includes a plurality of bending portions 111. The side plate 110 is bent and formed through the plurality of bending portions to form a shell frame with openings at both ends. The bottom plate 120 is arranged at the opening at one end of the shell frame and connected with the shell frame. In addition, the cover body 200 includes a cover plate 210, a conductive assembly 220 and an adhesive 230. The cover plate 210 is arranged at the opening at the other end of the shell frame. The conductive assembly 220 is arranged on the surface of the cover plate 210, and all or part of the conductive assembly 220 is connected with the cover plate 210 through the adhesive 230.

[0028] It should be noted that the bending portions 111 on the side plate 110 are arranged along the width direction of the side plate 110. The bending portions 111 extend from one side of the side plate 110 to the other side of the side plate 110, so that the side plate 110 can be bent along the bending portions 111. After the side plate 110 is bent, the two ends thereof are in contact. At this time, the side plate 110 forms a frame-shaped shell frame. The two ends of the side plate 110 are connected by welding or sealing glue, so that the connection between the two ends of the side plate 110 is sealed. The upper and lower ends of the shell frame are both formed with openings. The bottom plate 120 is arranged on the opening at the lower end of the shell frame by welding or sealing glue, so that the opening at the lower end of the shell frame is sealed.

[0029] The cover plate 210 is arranged at the opening at the upper end of the shell frame. The cover plate 210 is also connected with the shell frame by welding or sealing glue, so as to form a sealed battery shell. The conductive assembly 220 is arranged on the surface of the cover plate 210 away from the shell body 100 during installation. The conductive assembly 220 can be directly connected with the cover plate 210, or indirectly connected through the adhesive 230. The conductive assembly 220 is in communication with the inside of the battery shell formed by the shell body 100 and the cover body 200, so as to ensure that the conductive assembly 220 can be electrically connected with the battery cell 300 inside the battery shell, and the positive and negative electrodes of the battery are led out, thereby facilitating the connection with external electrical appliances.

[0030] The manufacturing process of the battery shell is as follows: Figure 2 When the shell 100 is manufactured, a side plate 110 with a size conforming to the required battery shell size is obtained by laser cutting, the side plate 110 is bent along the bending part 111, the two ends of the side plate 110 are in contact, and then the two ends of the side plate 110 are welded and fixed, and the shell frame is formed by the side plate 110. The bottom plate 120 and the cover plate 210 are respectively arranged at the openings at the two ends of the shell frame to form a sealed battery shell. Then, all the conductive components 220 are adhered to the surface of the cover plate 210 by the adhesive 230, or part of the conductive components 220 are directly connected to the surface of the cover plate 210, and the other part of the conductive components 220 are adhered to the surface of the cover plate 210 by the adhesive 230.

[0031] Through the above structure, the shell frame can be formed by only one side plate 110, and only the side plate 110 needs to be bent and welded in the manufacturing process, without the need for molds for production, effectively reducing the cost and time period required for mold development and design. The conductive components 220 are fixed on the cover plate 210 by the adhesive 230, without the need for riveting, so that the cover plate 210 does not need to reserve the structure and thickness required for riveting when the cover plate 210 is manufactured, and the thickness of the cover plate 210 can be appropriately reduced during production, thereby increasing the volume and capacity of the battery shell composed of the cover body 200 and the shell 100.

[0032] Preferably, the cover plate 210 is provided with electrode holes 211 penetrating through the cover plate 210, and all or part of the conductive components 220 are connected to the electrode holes 211 by the adhesive 230.

[0033] Referring to Figure 3 and Figure 4 In some embodiments, the electrode holes 211 are arranged near the end of the cover plate 210, and the electrode holes 211 are opened by cutting or laser cutting. All or part of the conductive components 220 are arranged corresponding to the electrode holes 211, and the conductive components 220 arranged corresponding to the electrode holes 211 can communicate with the inside of the battery shell through the electrode holes 211, so as to facilitate the connection between the conductive components 220 and the battery shell inside the battery shell to lead out the electrode.

[0034] Referring to Figure 3 In some embodiments, all the conductive components 220 are adhered to the surface of the cover plate 210 by the adhesive 230, two electrode holes 211 are arranged on the surface of the cover plate 210, the conductive components 220 are adhered to the electrode holes 211, and the conductive components 220 are respectively connected to the positive and negative electrodes of the battery cell 300 through the two electrode holes 211. Referring to Figure 4In some embodiments, the conductive component 220 is directly connected (welded, etc.) to the surface of the cover plate 210, and the surface of the cover plate 210 is provided with an electrode hole 211. Another conductive component 220 is adhered to the electrode hole 211 by an adhesive 230. The conductive component 220 at the electrode hole 211 is in communication with one pole of the battery cell 300 through the electrode hole 211. The cover plate 210 is made of conductive material and is in communication with another pole of the battery cell 300, thereby leading out another pole of the battery cell 300. The conductive component 220 directly connected to the surface of the cover plate 210 leads out another pole of the battery cell 300 through the cover plate 210. At this time, the conductive component 220 at the electrode hole 211 is electrically insulated from the cover plate 210 by the adhesive 230.

[0035] Further, the adhesive 230 is laminated and clamped between the conductive component 220 and the cover plate 210 to connect the conductive component 220 and the cover plate 210. The adhesive 230 is provided with a through hole corresponding to the electrode hole 211, and part of the structure of the conductive component 220 is exposed to the through hole and the electrode hole 211.

[0036] In some embodiments, the adhesive 230 is laid on the cover plate 210 around the electrode hole 211, so that the middle part of the adhesive 230 forms a through hole corresponding to the electrode hole 211. The conductive component 220 is adhered to the adhesive 230, and at this time, the bottom surface of the conductive component 220 can be in communication with the surface of the shell 100 close to the cover plate 210 through the through hole and the electrode hole 211. After the battery is assembled, the conductive component 220 is connected to the conductive parts such as wires and the battery cell 300 inside the battery shell. The wires can pass through the through hole and the electrode hole 211 to electrically connect the conductive component 220 and the battery cell 300.

[0037] Preferably, the surface of the cover plate 210 is provided with a liquid injection hole 212, and the liquid injection hole 212 penetrates the cover plate 210.

[0038] In some embodiments, the liquid injection hole 212 is provided in the middle part of the cover plate 210, and the liquid injection hole 212 communicates the two sides of the cover plate 210. Through the liquid injection hole 212, liquid material can be introduced into the inside of the battery shell, which is convenient for the production of the battery. In addition, the liquid material in the inside of the battery shell can also be extracted through the liquid injection hole 212, which is convenient for the maintenance of the battery. The liquid injection hole 212 is obtained by cutting the cover plate 210 by a laser.

[0039] Preferably, the cover 200 further comprises an explosion-proof groove 213 provided on the surface of the cover plate 210.

[0040] In some embodiments, the explosion-proof groove 213 is an arc-shaped groove, and the explosion-proof groove 213 extends from the surface of the cover plate 210 away from the shell 100 to the opposite surface of the cover plate 210 by a certain distance. The thickness of the cover plate 210 at the position of the explosion-proof groove 213 is thinner than that of other positions of the cover plate 210. When the internal pressure of the battery is too large, the explosion-proof groove 213 will break at this position first, and the pressure is released through the broken position, preventing the battery from exploding due to excessive pressure and achieving the effect of explosion-proof. The explosion-proof groove 213 is arranged at the middle part of the cover plate 210. Compared with being arranged at the corners of the cover plate 210 connected with the shell 100, the pressure on the middle part of the cover plate 210 is more uniform, and it is convenient for the gas or liquid in the battery shell to float directly out when the cover plate 210 is broken, thereby improving the efficiency of pressure relief. The explosion-proof groove 213 is processed on the surface of the cover plate 210 by a picosecond laser, and the depth of the explosion-proof groove 213 is adjusted according to the explosion-proof pressure of the battery shell.

[0041] Referring to Figure 5 Preferably, the shell frame is provided with a mounting groove 112 at the end in contact with the cover plate 210, and the cover plate 210 is matched with the mounting groove 112.

[0042] In some embodiments, the mounting groove 112 is arranged at the upper edge of the shell frame around the upper opening of the shell frame. When the cover plate 210 is installed, the cover plate 210 can be covered on the upper opening of the shell frame, so that the side wall of the cover plate 210 abuts against the inner wall of the mounting groove 112. At this time, the upper surface of the cover plate 210 is flush with the upper end surface of the shell frame, so that the outer surface of the battery shell formed is not protruding and is relatively flat, and is not easy to be knocked during use and transportation. By arranging the mounting groove 112, the contact between the cover plate 210 and the shell frame is more close when the cover plate 210 is covered on the upper opening of the shell frame, which facilitates the installation and positioning of the cover plate 210.

[0043] In addition, the mounting groove 112 can also be arranged at the lower opening of the shell frame, and the bottom plate 120 is matched and installed in the mounting groove 112 at the lower opening of the shell frame, so that the contact between the bottom plate 120 and the shell frame is more close, and the bottom plate 120 is not easy to deviate during welding processing, thereby improving the welding processing quality.

[0044] Further, the mounting groove 112 is a stepped groove.

[0045] In some embodiments, the mounting groove 112 is a two-step groove, wherein the outer wall of the shell frame is higher on one side and the inner wall is lower on the other side, forming a stepped mounting groove 112, which facilitates the installation of the cover plate 210. During processing, the stepped groove is formed on both sides of the side plate 110 in advance by laser cutting or stamping, and then the side plate 110 is bent along the bending part 111, so that the shell frame with the mounting groove 112 can be directly obtained.

[0046] A battery comprises a battery shell as described above, the inside of the battery shell is provided with a containing cavity; the battery further comprises an electric core 300, which is arranged in the containing cavity; and a conductive assembly 220 is electrically connected with the electric core 300.

[0047] In some embodiments, the electric core 300 can be solid or liquid, and the cover 200 and the shell 100 form a closed battery shell, which can ensure that the electric core 300 in the battery shell does not leak. The conductive assembly 220 is connected with the electric core 300 in the containing cavity through the battery shell to lead out the positive and negative poles of the battery, so as to facilitate the connection of the battery with an electrical appliance.

[0048] Further, the conductive assembly 220 comprises a positive pole sheet 221 and a negative pole sheet 222, the positive pole sheet 221 is electrically connected with the positive pole of the electric core 300, and the negative pole sheet 222 is electrically connected with the negative pole of the electric core. Thus, the positive and negative poles of the battery are led out by the positive pole sheet 221 and the negative pole sheet 222, so as to facilitate the connection of the battery with an electrical appliance.

[0049] The adhesive 230 is arranged corresponding to the positive pole sheet 221 and the negative pole sheet 222, and the positive pole sheet 221 and / or the negative pole sheet 222 are connected to the surface of the cover plate 210 through the adhesive 230, so as to ensure that the positive pole sheet 221 and the negative pole sheet 222 are stably connected to the surface of the cover plate 210.

[0050] In some embodiments, the positive pole sheet 221 and the negative pole sheet 222 are arranged at two ends of the cover plate 210 respectively, so that the positive pole sheet 221 and the negative pole sheet 222 are spaced apart by a certain distance, the mis-touch during wiring is avoided, and the safety in use is improved. The adhesive 230 or the cover plate 210 is made of an insulating material, so that the positive pole sheet 221 and the negative pole sheet 222 are electrically insulated, and the short circuit is avoided.

[0051] Further, the adhesive 230 is made of an electrically insulating material.

[0052] Reference is made to Figure 3In some embodiments, the adhesive 230 is made of insulating material, such as polypropylene, epoxy resin glue, acrylate structural adhesive, silicone sealant, polyurethane sealant, or electrolyte-resistant pressure-sensitive adhesive. The positive electrode tab 221 and the negative electrode tab 222 are both adhered to the surface of the cover plate 210 by the adhesive 230, and neither of the positive electrode tab 221 and the negative electrode tab 222 is in direct contact with the cover plate 210, so that the positive electrode tab 221 and the negative electrode tab 222 are both electrically insulated from the cover plate 210, which can make the cover 200 and the shell 100 both not charged during use of the battery, making use safer and reducing the risk of short circuit. In some other embodiments, the negative electrode tab 222 is in direct contact with the cover plate 210, and the cover plate 210 is electrically connected to the negative electrode of the battery cell 300, so that the negative electrode tab 222 leads out the negative electrode of the battery cell 300; the positive electrode tab 221 is adhered to the surface of the cover plate 210 by the adhesive 230, and the positive electrode tab 221 is electrically insulated from the cover plate 210 to avoid short circuit.

[0053] In addition, referring to Figure 6 In some other embodiments, the cover plate 210 and the bottom plate 120 can be provided with bent extensions at the edges, and the cover plate 210 and the bottom plate 120 are connected to the mounting groove 112 through the extensions at the edges, and the connection between the extensions and the mounting groove 112 is sealed by welding, which can increase the volume of the battery shell formed by the cover 200 and the shell 100, store a larger battery cell 300 to increase the battery capacity.

[0054] The specific implementation process of the present application is as follows: Figures 1-4 According to the product size, select or make a plate-shaped raw material of corresponding size. The electrode holes 211 are opened at both ends of the cover plate 210 by laser cutting, and the liquid injection hole 212 is opened in the middle of the surface of the cover plate 210; then the anti-explosion groove 213 is opened in the middle of the surface of the cover plate 210 according to the required anti-explosion pressure of the battery shell by a picosecond laser. The positive electrode tab 221 and the negative electrode tab 222 are bonded to the corresponding electrode holes 211 by the adhesive 230.

[0055] The mounting groove 112 is formed on the side of the side plate 110 by stamping, and the bending part 111 is formed at the predetermined position of the side plate 110 according to the product size. The side plate 110 is bent along the bending part 111 to form a shell frame, and the two ends of the side plate 110 are connected by welding sealing. The bottom plate 120 is welded to the opening at the bottom end of the shell frame to close the opening at the bottom of the shell frame, forming the shell 100 with an open upper end.

[0056] The shell 100 is installed in the middle part of the shell 100, and the positive plate 221 and the negative plate 222 are connected with the corresponding terminals of the shell 300 after the installation of the shell 300. After the connection is completed, the cover 200 is covered on the opening of the upper end of the shell 100, the edge of the cover 200 is matched with the installation groove 112, the edge of the cover 200 is welded with the upper end opening of the shell 100, and the sealing is formed. The electrolyte is injected into the shell 100 through the injection hole 212, and then the injection hole 212 is sealed, and the production of the battery is completed.

[0057] The above implementation process can realize the beneficial effects: the side plate 110 is directly obtained by bending along the bending part 111, without the need for stamping forming through a mold, effectively saving the time and manufacturing cost required for mold manufacturing in the batch production process. In addition, the conductive assembly 220 is directly pasted on the surface of the cover plate 210, without the need for space required for riveting and other connection methods, which can increase the volume of the formed battery shell by reducing the thickness of the cover plate 210, thereby increasing the battery capacity.

[0058] The technical features of the above-described embodiments can be combined arbitrarily. In order to make the description simple, all possible combinations of the technical features in the above-described embodiments are not described, but as long as the combinations of the technical features do not exist, they should be considered as the scope of the present application.

[0059] The above-described embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it should not be understood as limiting the scope of the patent application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of the present application. Therefore, the scope of the patent of the present application should be subject to the appended claims.

Claims

1. A battery housing, characterized by The application relates to a battery shell. The shell (100) comprises a side plate (110) and a bottom plate (120), the side plate (110) comprises a plurality of bending parts (111), the side plate (110) is bent and formed through the plurality of bending parts to form a shell frame with openings at two ends; the bottom plate (120) is arranged on the opening at one end of the shell frame and is connected with the shell frame. The cover body (200) comprises a cover plate (210), a conductive assembly (220) and an adhesive (230), the cover plate (210) is arranged on the opening at the other end of the shell frame; the conductive assembly (220) is arranged on the surface of the cover plate (210), and all or part of the conductive assembly (220) is connected with the cover plate (210) through the adhesive (230).

2. The battery case of claim 1, wherein, The cover plate (210) is provided with an electrode hole (211) penetrating through the cover plate (210), and all or part of the conductive assembly (220) is connected with the electrode hole (211) through the adhesive (230).

3. The battery case of claim 2, wherein, The adhesive (230) is arranged between the conductive assembly (220) and the cover plate (210) in a laminated mode to connect the conductive assembly (220) and the cover plate (210); the adhesive (230) is provided with a through hole corresponding to the electrode hole (211), and part of the structure of the conductive assembly (220) is exposed from the through hole and the electrode hole (211).

4. The battery case of claim 1, wherein, The cover plate (210) is provided with a liquid injection hole (212) penetrating through the cover plate (210).

5. The battery case of claim 1, wherein, The cover body (200) further comprises an explosion-proof groove (213) arranged on the surface of the cover plate (210).

6. The battery case of claim 1, wherein, One end of the shell frame in contact with the cover plate (210) is provided with a mounting groove (112), and the cover plate (210) is matched with the mounting groove (112).

7. The battery case of claim 6, wherein, The mounting groove (112) is a stepped groove.

8. A battery, characterized by The battery further comprises an electric core (300) arranged in the accommodating cavity, the conductive assembly (220) is electrically connected with the electric core (300).

9. The battery of claim 8, wherein, The conductive assembly (220) comprises a positive plate (221) and a negative plate (222), the positive plate (221) and the negative plate (222) are respectively electrically connected with a positive pole of the electric core and a negative pole of the electric core, and the positive plate (221) and / or the negative plate (222) are connected with the surface of the cover plate (210) through the adhesive (230).

10. The battery of claim 9, wherein, The adhesive (230) is an electrically insulating material.

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