Battery and battery system

Abstract

The utility model discloses a battery and a battery system. The battery comprises two current collecting pieces, a cylindrical winding core pole group, a square shell and a square cover plate, the two current collecting pieces are respectively arranged at the bottom and the top end of the cylindrical winding core pole group; the cylindrical winding core pole group and the current collecting piece are arranged in the square shell; the square cover plate is matched with the opening of the square shell, and the square cover plate is arranged at the opening of the square shell and detachably connected with the square shell. According to the battery and the battery system provided by the invention, the safety, the energy density and the service life of the battery are improved.

Description

Technical Field

[0001] The present application relates to the field of new energy technology, and more specifically, to a battery and a battery system. Background Art

[0002] With the rapid development of new energy batteries and new energy chemical energy storage batteries, the requirements for the safety, energy density and service life of new energy batteries are becoming increasingly higher.

[0003] Therefore, how to improve the performance of batteries in various aspects has become a technical problem that needs to be urgently solved in the industry. Utility Model Content

[0004] The present application provides a battery and a battery system to solve the technical problem of how to improve the performance of batteries in various aspects in the prior art.

[0005] In a first aspect, the present application provides a battery, comprising:

[0006] Two current collectors, a cylindrical core-wound pole group, a square shell and a square cover plate;

[0007] The two current collecting sheets are respectively arranged at the bottom and the top of the cylindrical core-wound electrode group;

[0008] The cylindrical core-wound electrode group and the current collecting sheet are both arranged in the square shell;

[0009] The square cover plate is matched with the opening of the square shell. The square cover plate is arranged at the opening of the square shell and is detachably connected to the square shell.

[0010] In some embodiments, the square cover plate includes a cover plate insulating sheet, a cover plate supporting plate and a breathing valve;

[0011] The cover plate insulating sheet is arranged under the cover plate supporting plate;

[0012] A breathing valve hole is provided on the cover plate support plate;

[0013] The breathing valve comprises a breathing valve rubber nail arranged in the breathing valve hole, and a breathing valve cover plate covering the breathing valve rubber nail; the breathing valve is movably connected to the cover plate support plate.

[0014] In some embodiments, the square cover plate further includes two poles, and the two poles respectively pass through two ends of the cover plate support plate.

[0015] In some embodiments, both ends of the cover support plate and the cover insulation sheet are correspondingly provided with axial holes that pass through from top to bottom;

[0016] The pole comprises rivets, an insulating bottom support sheet, an insulating gasket and a top plate;

[0017] The rivet passes through the shaft hole;

[0018] The insulating bottom support sheet, the insulating gasket and the top plate are all sleeved on the nail rod of the rivet;

[0019] The insulating bottom support sheet is between the cover plate insulating sheet and the nail cap of the rivet;

[0020] The insulating gasket is between the cover support plate and the top plate;

[0021] The top plate is provided with a thread structure.

[0022] In some embodiments, a waterproof layer is disposed on the surface of the square shell and the surface of the square cover.

[0023] In some embodiments, the cylindrical winding core pole group is horizontally arranged in the square shell.

[0024] In some embodiments, the cylindrical core-wound pole group is vertically arranged in the square shell.

[0025] In a second aspect, the present application provides a battery system, comprising:

[0026] Battery pack, system box and signal control components;

[0027] The battery pack includes a plurality of batteries connected in parallel or in series based on a link assembly; the battery pack is arranged in the system box;

[0028] The signal control component and the link component are both integrated on the box cover of the system box;

[0029] Wherein, the battery is the battery mentioned above.

[0030] In some embodiments, the system further comprises a temperature control component;

[0031] The temperature control component is arranged on the system box and is electrically connected to the signal control component.

[0032] The battery and battery system provided in the present application can improve the energy density inside the battery and promote effective contact between the electrolyte and the electrode material through the structural design of the cylindrical core-wound electrode group, the square shell and the square cover plate; the space between the cylindrical core-wound electrode group and the square shell and the square cover plate can be used as redundant space to release pressure on the battery and prevent deformation of the cylindrical core-wound electrode group, thereby improving the safety of the battery during use and the service life of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0034] In order to more clearly illustrate the technical solutions in the present application or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0035] Figure 1 A cross-sectional view of a battery provided in an embodiment of the present application;

[0036] Figure 2 A cross-sectional view of a cover plate provided in an embodiment of the present application;

[0037] Figure 3 A cross-sectional view of a battery system provided in an embodiment of the present application.

[0038] Reference numerals:

[0039] 1. Square cover plate; 1-1-1. Positive top plate; 1-1-2. Positive insulation gasket; 1-1-3. Positive insulation bottom support plate; 1-1-4. Positive rivet; 1-2-1. Negative top plate; 1-2-2. Negative insulation gasket; 1-2-3. Negative insulation bottom support plate; 1-2-4. Negative rivet; 1-3. Breathing valve; 1-3-1 Breathing valve cover plate; 1-3-2 Breathing valve rubber nail; 1-4. Cover support plate; 1-5. Cover insulation sheet;

[0040] 2. Square shell

[0041] 3. Cylindrical coiled core pole group;

[0042] 4. Top surface current collector;

[0043] 5. Bottom current collecting plate; 5-1. Disc; 5-2. Guide assembly;

[0044] 6. Battery;

[0045] 7. System cabinet;

[0046] 8. Temperature control components;

[0047] 9. Signal control component;

[0048] 10. Box cover. DETAILED DESCRIPTION

[0049] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0050] It should be noted that in the drawings or descriptions, similar or identical parts use the same figure numbers. The technical features in the various embodiments exemplified in the specification can be freely combined to form a new solution without conflict. In addition, each embodiment can be used as an embodiment alone or the technical features in various embodiments can be combined as a new embodiment. In the drawings, the shape or thickness of the embodiment can be expanded and marked for simplification or convenience. Furthermore, the elements or implementations not shown or described in the drawings are forms known to ordinary technicians in the relevant technical field.

[0051] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. All terms used herein (including technical and scientific terms) have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used here should be interpreted as having a meaning consistent with the context of this specification, and should not be interpreted in an idealized or overly rigid manner.

[0052] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0053] In the description of the present application, it should be understood that the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0054] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0055] The present application is described in detail with reference to schematic diagrams. When describing the embodiments of the present application in detail, for the sake of convenience, the schematic diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present application. In addition, in actual devices, the three-dimensional dimensions of length, width and depth should be included.

[0056] Figure 1 A cross-sectional view of a battery provided in an embodiment of the present application, such as Figure 1 As shown, the battery includes two current collectors, a cylindrical core electrode group 3, a square shell 2 and a square cover plate 1;

[0057] Two current collectors are respectively arranged at the bottom and top of the cylindrical core-wound electrode group 3;

[0058] The cylindrical core-wound electrode group 3 and the current collector are both arranged in the square housing 2;

[0059] The square cover plate 1 fits with the opening of the square shell 2 . The square cover plate 1 is arranged at the opening of the square shell 2 and is detachably connected to the square shell 2 .

[0060] Specifically, the battery of the present application may be a metal ion battery of an organic electrolyte system.

[0061] In order to facilitate viewing of the structures of the two current collectors and the cylindrical core electrode group 3, Figure 1 The structure of this part is shown in the dotted frame. The two current collectors can be a top surface current collector 4 and a bottom current collector 5. The top surface current collector 4 can be a positive current collector or a negative current collector. The bottom current collector 5 can include a disc 5-1 and a current guide component 5-2. The current guide component 5-2 is used to transmit current. The bottom current collector 5 can be a positive current collector or a negative current collector.

[0062] The battery assembly process can include arranging the cylindrical core-wound electrode group 3 neatly, welding the bottom current collector 5 to the cylindrical core-wound electrode group 3, and then welding the top of the neatly arranged cylindrical core-wound electrode group 3 to the top surface current collector 4, respectively welding the top surface current collector 4 and the bottom current collector 5 to the poles of corresponding polarity of the square cover plate 1, and then placing one side of the bottom current collector 5 at the bottom of the assembled cylindrical core-wound electrode group 3 with the square cover plate 1 into the square shell 2, and finally sealing the joint between the square shell 2 and the square cover plate 1.

[0063] The cylindrical core-wound electrode group 3 may be a cylindrical metal ion electrode group, such as a cylindrical sodium ion battery electrode group or a cylindrical lithium ion battery electrode group, etc. The cylindrical core-wound electrode group 3 may be arranged horizontally in the square housing 2 or vertically in the square housing 2 . Figure 1 The diagram shows a cylindrical core-wound pole group 3 vertically arranged in a square shell 2. If the cylindrical core-wound pole group 3 is horizontally arranged in the square shell 2, the structure of the guide component 5-2 needs to be adaptively adjusted to ensure that the two ends of the cylindrical core-wound pole group 3 can be electrically connected to the poles on the square cover plate 1.

[0064] The square cover plate 1 is matched with the opening of the square housing 2, and the two are tightly connected and detachable. The joint between the square housing 2 and the square cover plate 1 can be sealed with a detachable and reusable packaging component, which can isolate water molecules from entering and has the effect of not destroying the original structure after rapid disassembly.

[0065] A waterproof layer may be provided on the surface of the square housing 2 and the surface of the square cover plate 1. The waterproof layer may be formed by surface treatment of the surface of the square housing 2 and the surface of the square cover plate 1. The waterproof layer may prevent water molecules from diffusing on the surface of the square housing 2 and the surface of the square cover plate 1, thereby achieving a completely waterproof effect.

[0066] The cylindrical wound core electrode group 3 has the characteristics of cylindrical symmetrical structure and structural strength. Compared with the square electrode group, the cylindrical wound core electrode group 3 has stronger structural strength and stronger pressure resistance, and the battery is safer from falling, squeezing and heavy object impact.

[0067] The battery provided in the embodiment of the present application can improve the energy density inside the battery and promote effective contact between the electrolyte and the electrode material through the structural design of the cylindrical core-wound electrode group 3, the square shell 2 and the square cover plate 1; the space between the cylindrical core-wound electrode group 3 and the square shell 2 and the square cover plate 1 can be used as redundant space to release pressure on the battery and prevent deformation of the cylindrical core-wound electrode group 3, thereby improving the safety of the battery during use and the service life of the battery.

[0068] The battery of the embodiment of the present application takes into account the structural stability advantages of cylindrical batteries and the space utilization advantages of square batteries. Compared with traditional lithium-ion and sodium-ion batteries, this structural battery has a larger internal battery air chamber and a more spacious liquid injection space. The air chamber and liquid injection space are increased to a maximum of 20% of the battery volume, which is 10 times the design of traditional lithium-ion and sodium-ion batteries, and can effectively improve the safety and cycle life of the battery.

[0069] The structure of the battery provided in the embodiment of the present application can be called a bare cell directly integrated into the battery system (Jellyroll To Pack, JTP) structure. The battery provided in the embodiment of the present application can be called a JTP battery. The JTP structure can effectively solve the problem that the traditional cylindrical battery packaging process has a small space and is difficult to design a high-rate current-carrying current collector design. The larger busbar design inside the battery designed with the JTP structure has better rate performance.

[0070] The battery of the embodiment of the present application detachably connects the square shell 2 with the square cover plate 1, so that the packaging component assembly can be reused, and the battery electrode group can be quickly disassembled to achieve the reuse of resources.

[0071] It should be noted that each implementation method of the present application can be freely combined, the order can be changed, or it can be executed separately, and does not need to rely on or depend on a fixed execution order.

[0072] As an optional embodiment, by changing the connection method of the positive and negative poles of the cylindrical winding core electrode group 3 inside the battery, the internal series connection of the battery can be achieved, so that the voltage of the single battery is increased. For example, when the positive and negative poles of the cylindrical winding core electrode group 3 are changed, the internal series and parallel connection of the battery can be achieved by disconnecting or connecting the current collector.

[0073] Figure 2 A cross-sectional view of a cover plate provided in an embodiment of the present application, such as Figure 2 As shown, the cover plate includes a cover plate insulating sheet 1-5, a cover plate supporting plate 1-4, a breathing valve 1-3, and two poles;

[0074] The cover plate insulating sheet 1-5 is arranged under the cover plate supporting plate 1-4;

[0075] A breathing valve hole is provided on the cover support plate 1-4;

[0076] The breathing valve 1-3 includes a breathing valve rubber nail 1-3-2 arranged in the breathing valve hole, and a breathing valve cover plate 1-3-1 covering the breathing valve rubber nail 1-3-2; the breathing valve 1-3 is movably connected to the cover plate support plate 1-4;

[0077] The two poles are respectively passed through the two ends of the cover support plate 1 - 4 .

[0078] Both ends of the cover support plate 1-4 and the cover insulation sheet 1-5 are provided with axial holes that pass through from top to bottom;

[0079] The pole includes rivets, insulating bottom brackets, insulating gaskets and top plates;

[0080] Rivet, passing through the shaft hole;

[0081] The insulating bottom support sheet, insulating gasket and top plate are all sleeved on the nail rod of the rivet;

[0082] The insulating bottom support sheet is between the cover plate insulating sheet 1-5 and the nail cap of the rivet;

[0083] The insulating gasket is between the cover support plate 1-4 and the top plate;

[0084] The top plate has a threaded structure.

[0085] Specifically, the square cover plate 1 includes a cover plate support plate 1-4, a cover plate insulating sheet 1-5, a breathing valve cover plate 1-3-1, a breathing valve rubber nail 1-3-2, a positive top plate 1-1-1, a positive insulating gasket 1-1-2, a positive insulating bottom support plate 1-1-3, a positive rivet 1-1-4, a negative top plate 1-2-1, a negative insulating gasket 1-2-2, a negative insulating bottom support plate 1-2-3 and a negative rivet 1-2-4.

[0086] The two poles are respectively a positive pole and a negative pole. The positive pole includes a positive top plate 1-1-1, a positive insulating gasket 1-1-2, a positive insulating bottom support plate 1-1-3 and a positive rivet 1-1-4; the negative pole includes a negative top plate 1-2-1, a negative insulating gasket 1-2-2, a negative insulating bottom support plate 1-2-3 and a negative rivet 1-2-4.

[0087] The top plates of the positive and negative poles are provided with a threaded structure, such as an upwardly convex externally threaded stud or an inwardly concave internally threaded nut, to facilitate the rapid integration of subsequent battery packs.

[0088] The breathing valve 1-3 includes a breathing valve rubber nail 1-3-2 arranged in the breathing valve hole, and a breathing valve cover plate 1-3-1 covering the breathing valve rubber nail 1-3-2.

[0089] When the internal pressure of the battery reaches the set value, the breathing valve 1-3 will automatically open to relieve pressure. When the pressure is released, the breathing valve 1-3 will automatically close to complete the seal and prevent water molecules from entering the battery.

[0090] The battery provided in the embodiment of the present application can quickly integrate the battery pack by setting a threaded structure on the top plate, directly integrate the battery electrode group into the battery system level, and realize the detachable maintenance of the battery system; the square cover plate 1 and the battery structure of the present application can provide a buffer for the gas production inside the battery in the air chamber space inside the battery package, and the breathing valve 1-3 can play a role in pressure relief. When the battery has an internal short circuit or an external short circuit, a large amount of gas is generated inside the battery. The battery provided in the embodiment of the present application can prevent the battery from catching fire and exploding, thereby improving the safety of the battery.

[0091] Through the structural design of the cover plate and the battery in the embodiment of the present application, the battery can be quickly disassembled, providing a structural basis for disassembling the integrity of the electrode group and the rapid separation of the positive and negative electrodes and the diaphragm of the electrode group, thereby achieving the rapid separation of the positive and negative electrodes and the diaphragm of the electrode group at the end of their life and realizing the reuse of resources.

[0092] The following are relevant performance tests conducted on the batteries provided in the above embodiments.

[0093] Example 1

[0094] The 3V100Ah JTP battery (internal parallel connection) was assembled by vertically arranging (i.e., vertically setting) cylindrical sodium-ion battery coiled electrode groups.

[0095] Example 2

[0096] The 3V100Ah JTP battery (internal parallel connection) was assembled and prepared by placing cylindrical sodium-ion battery core electrode groups horizontally (i.e., setting them horizontally).

[0097] Example 3

[0098] The 12V20Ah JTP battery is assembled by vertically placing cylindrical sodium-ion battery coiled pole groups. (Internal series connection)

[0099] Comparative Example 1

[0100] The conventional cylindrical sodium-ion battery cells were used to prepare a 3V100Ah battery pack in parallel.

[0101] Comparative Example 2

[0102] The 3V100Ah battery was prepared using the traditional square sodium-ion battery preparation method.

[0103] Comparative Example 3

[0104] The 12V20Ah module was prepared using traditional cylindrical sodium-ion batteries in series.

[0105] The cycle life and safety test results of the batteries of Example 1, Example 2, Comparative Example 1 and Comparative Example 2 are shown in Table 1 below:

[0106] Table 1 Battery cycle life and safety test results

[0107]

[0108] The cycle life and safety test results of the batteries of Example 3 and Comparative Example 3 are shown in Table 2 below:

[0109] Table 2 Battery cycle life and safety test results

[0110] Example 3 Comparative Example 3 Cycle life 3000 weeks 1000 weeks acupuncture No fire, no explosion Fire but no explosion extrusion No fire or explosion Fire but no explosion

[0111] It can be seen from Table 1 and Table 2 that the battery provided in the embodiment of the present application has a longer cycle life and better safety performance than the existing battery.

[0112] Figure 3 A cross-sectional view of a battery system provided in an embodiment of the present application, such as Figure 3 As shown, the battery system includes a battery pack, a system box 7, a temperature control component 8 and a signal control component 9;

[0113] A battery pack, comprising a plurality of batteries 6 connected in parallel or in series based on a link assembly; the battery pack is arranged in a system box 7;

[0114] The temperature control component 8 is arranged on the system box 7 and is electrically connected to the signal control component 9;

[0115] The signal control component 9 and the link component are integrated on the box cover 10 of the system box 7;

[0116] Among them, the battery 6 is the battery 6 mentioned above.

[0117] Specifically, the temperature control component 8 is used to control the temperature of the battery system. The temperature control component 8 can be a heating sheet or a heating strip, etc. The temperature control component 8 can be integrated into the system box 7 of the battery system.

[0118] The signal control component 9 is used to collect the temperature and voltage of the battery system, etc. The signal control component 9 is electrically connected to the temperature control component 8. When the temperature collected by the signal control component 9 is not within the set temperature, the temperature control component 8 will control the temperature of the battery system.

[0119] The linking assembly (not shown in the figure) for connecting the batteries 6 in series and parallel and the signal control assembly 9 can be integrated into the box cover 10 of the system box 7, so as to realize the rapid integration and rapid disassembly of the battery system and the reuse of system accessories.

[0120] The battery system can be assembled in the following ways:

[0121] The two current collectors can be positive current collectors and negative current collectors. The cylindrical rolled electrode group 3 with welded positive and negative current collectors can be welded to the square cover 1, and the electrode group assembly with the cover is placed in the square shell 2. The square cover 1 and the square shell 2 are aligned and sealed. After the battery 6 is injected and formed, the battery cells are grouped and placed in a pre-designed system box 7. The system box 7 is integrated with a partition (not shown in the figure) that physically isolates the battery 6 to prevent short circuit, and the temperature control component 8 is integrated with the system box 7. The box cover 10 of the battery system is added to the system box 7 of the battery system. The box cover 10 is pre-integrated with a link component for integrating the battery 6 and an integrated signal control component 9. The assembly of the battery system is completed by simply tightening the screws.

[0122] The battery system provided in the embodiment of the present application, from the battery level to the battery system level, except for chemical components such as positive and negative electrode electrolytes that participate in chemical reactions during the battery cycle, all other components can be reused, which greatly reduces the recycling cost of the battery, realizes the full utilization of the functional components throughout their life cycle, and the reuse of structural components, thereby greatly realizing the rational use of resources.

[0123] It should be noted here that the battery system provided in the embodiment of the present application can realize all the functions realized by the above-mentioned batteries and can achieve the same technical effects. The parts and beneficial effects of the battery system in this embodiment that are the same as those in the battery embodiment will not be described in detail here.

[0124] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A battery, characterized in that: include: Two current collectors, a cylindrical core-wound pole group, a square shell and a square cover plate; The two current collecting sheets are respectively arranged at the bottom and the top of the cylindrical core-wound electrode group; The cylindrical core-wound pole group and the current collecting sheet are both arranged in the square shell; The square cover plate is matched with the opening of the square shell. The square cover plate is arranged at the opening of the square shell and is detachably connected to the square shell.

2. The battery according to claim 1, characterized in that The square cover plate comprises a cover plate insulating sheet, a cover plate supporting plate and a breathing valve; The cover plate insulating sheet is arranged under the cover plate supporting plate; A breathing valve hole is provided on the cover plate support plate; The breathing valve comprises a breathing valve rubber nail arranged in the breathing valve hole, and a breathing valve cover plate covering the breathing valve rubber nail; the breathing valve is movably connected to the cover plate support plate.

3. The battery according to claim 2, characterized in that The square cover plate further comprises two poles, and the two poles respectively penetrate through two ends of the cover plate support plate.

4. The battery according to claim 3, characterized in that Both ends of the cover plate support plate and the cover plate insulating sheet are correspondingly provided with axial holes penetrating vertically; The pole comprises rivets, an insulating bottom support sheet, an insulating gasket and a top plate; The rivet passes through the shaft hole; The insulating bottom support sheet, the insulating gasket and the top plate are all sleeved on the nail rod of the rivet; The insulating bottom support sheet is between the cover plate insulating sheet and the nail cap of the rivet; The insulating gasket is between the cover support plate and the top plate; The top plate is provided with a thread structure.

5. The battery according to claim 1, characterized in that A waterproof layer is provided on the surface of the square shell and the surface of the square cover plate.

6. The battery according to claim 1, characterized in that The cylindrical winding core pole group is horizontally arranged in the square shell.

7. The battery according to claim 1, characterized in that The cylindrical winding core pole group is vertically arranged in the square shell.

8. A battery system, characterized in that: Including battery pack, system box and signal control components; The battery pack includes a plurality of batteries connected in parallel or in series based on a link assembly; the battery pack is arranged in the system box; The signal control component and the link component are both integrated on the box cover of the system box; Wherein, the battery is the battery according to any one of claims 1 to 7.

9. The battery system according to claim 8, characterized in that: The system also includes a temperature control component; The temperature control component is arranged on the system box and is electrically connected to the signal control component.

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