12V sodium ion starting battery

Abstract

The utility model discloses a 12V sodium ion starting battery, which belongs to the field of sodium ion batteries and comprises a lower box, an upper cover is arranged on the upper surface of the lower box, and a battery module is arranged in the lower box. According to the utility model, the lower box is made of the ABS plastic shell with the wall thickness of 3mm, so that the device is simple in structure, waste materials can be conveniently recycled, the strength of the box body can be ensured to be not lower than 20kg, and the lower battery box has stronger inertia impact resistance, thereby saving the development cost of a mold, being convenient to use and being suitable for popularization and application. The sodium-ion battery module is formed by cold pressing of an SECC galvanized sheet metal plate support and used for improving the grouping firmness capacity in the battery module, meanwhile, the sodium-ion battery module is simple in overall design process and easy to assemble and manufacture, the strength and rigidity can achieve the bearing specific gravity, meanwhile, the heating value of a battery cell and the high temperature of the periphery of a battery box are considered while materials are used, and the service life of the sodium-ion battery module is prolonged. And the overall temperature of the battery pack is well controlled.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of sodium ion battery especially, relates to a 12V sodium ion starting battery. BACKGROUND

[0002] In the prior art of battery, lithium ion battery (LIB) has incomparable energy density and multifunctionality, since its first commercialization, portable devices have been driving its high-speed growth, in recent years, electric vehicles and stationary energy storage applications have begun to rise, due to the reserve distribution and price fluctuation of lithium ion battery raw materials, these large-scale applications have brought unprecedented pressure to the lithium ion battery value chain, and further promoted the development of alternative lithium ion technology, sodium ion battery (SIB) chemistry is one of the most promising "beyond lithium" battery technologies;

[0003] However, the existing lithium ion battery pack structure is weak in strength, and generally has a large volume, thereby reducing its stability and also increasing the weight of the whole vehicle. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a solution to the problem of weak structure strength of the existing lithium ion battery pack, and generally large volume, thereby reducing its stability and also increasing the weight of the whole vehicle.

[0005] Technical scheme: a 12V sodium ion starting battery, comprising a lower box, the upper surface of the lower box is provided with an upper cover, and the inside of the lower box is provided with a battery module.

[0006] Further, the battery module comprises sodium batteries, the number of the sodium batteries is four, the sodium batteries are connected by structural glue paste, the opposite sides of the sodium batteries on the left and the sodium batteries on the right are provided with CR foam, the left and right sides of the two CR foams are provided with two battery sheet metal supports, the front surfaces and the rear surfaces of the sodium batteries are provided with two side plates, and rivets are arranged between the side plates and the battery sheet metal supports.

[0007] Further, the outer side of the battery sheet metal support is provided with a plurality of insulating columns, a fuse is arranged between the two insulating columns on the right, two screws are arranged between the fuse and the two insulating columns, a total negative aluminum row is arranged behind the upper surface of the sodium battery on the left, a total positive aluminum row is arranged behind the upper surface of the sodium battery on the right, and the upper surfaces of the two adjacent sodium batteries are provided with a series aluminum row.

[0008] Further, the outer side of the total negative aluminum row is fixedly connected with a total negative cable, the outer side of the insulating column on the right front is fixedly connected with a total positive cable, and the top end of the total negative cable and the top end of the total positive cable are fixedly connected with the upper cover through bolts.

[0009] Further, a battery management system is arranged above the outer side of the battery sheet metal support on the right side, a socket is integrally formed on the right side of the battery management system, a plurality of voltage collection line plugs are inserted into the socket, and the ends, away from the battery management system, of the plurality of voltage collection line plugs are fixedly connected with the upper surfaces of the total negative aluminum row, the total positive aluminum row and the plurality of series aluminum rows.

[0010] Further, the models of the two screws are M8 models.

[0011] Further, the overall material of the plurality of battery sheet metal supports is SECC stamping.

[0012] Further, the upper surface of the upper cover is provided with a handle.

[0013] Further, the model of the insulating column is an M8 model.

[0014] Beneficial effects: the lower box in the utility model is made of an ABS plastic shell with a wall thickness of 3 mm, so that the device structure is simple, the waste material can be recycled, the box strength can be ensured to be not less than 20 kg bearing, and the battery lower box has strong inertial impact resistance, thereby saving mold development cost and being convenient to use.

[0015] The sodium ion battery module is formed by cold pressing of SECC galvanized sheet metal supports, so as to increase the grouping firmness in the battery module, the overall design process of the sodium ion battery module is simple and easy to assemble, the strength and rigidity can be realized to bear the proportion, at the same time, the use material considers the heat generation of the battery cell and the high temperature of the battery box periphery, so that the overall temperature of the battery pack is well controlled, and great improvement is realized in the production cost saving, especially in the application, the instantaneous starting capacity is far higher than that of the lithium ion battery, and can be up to 800 CCA.

[0016] The lower box inner cavity is cooled by liquid pouring sealant, so as to avoid the movement of the battery module in the box, save labor cost and improve the strength of the battery box, and the heat dissipation effect of the battery module is improved, and the service life is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2This is a schematic diagram of the overall structure of the battery module of this utility model;

[0019] Figure 3 This is a side view of the battery module structure of this utility model.

[0020] In the diagram: 1. Lower casing; 2. Upper cover; 3. Battery module; 4. Sodium battery; 5. CR foam; 6. Battery sheet metal bracket; 7. Side panel; 8. Rivet; 9. Insulating post; 10. Fuse; 11. Screw; 12. Main negative aluminum busbar; 13. Main positive aluminum busbar; 14. Series aluminum busbar; 15. Main negative cable; 16. Main positive cable; 17. Battery management system; 18. Socket; 19. Voltage acquisition line plug; 20. Handle. Detailed Implementation

[0021] To make the technical solution of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] Example 1

[0023] like Figure 1 As shown, a handle 20 is provided on the upper surface of the upper cover 2;

[0024] The handle 20 greatly improves the ease of battery handling. Users can easily lift, move, or place the battery in a designated location by simply holding the handle 20, without the need for other complicated handling tools or multiple people working together, saving manpower and time costs and improving work efficiency.

[0025] like Figures 1-3 As shown, a 12V sodium-ion starting battery is provided, including a lower box 1, an upper cover 2 is provided on the upper surface of the lower box 1, and a battery module 3 is provided inside the lower box 1.

[0026] The lower box 1 is made of ABS plastic shell with a wall thickness of 3mm, which makes the device structure simple, facilitates the recycling of waste materials, ensures that the box strength can bear a load of no less than 20kg, and the battery lower box 1 has strong inertial impact resistance, thereby saving mold development costs and making it easy to use.

[0027] like Figures 1-3As shown, the battery module 3 includes four sodium batteries 4. These sodium batteries 4 are connected by structural adhesive. CR foam 5 is installed on the opposite sides of both the left and right sodium batteries 4. Two battery sheet metal brackets 6 are installed on the left and right sides of each of the two CR foam 5. Two side plates 7 are shared on the front and rear surfaces of the sodium batteries 4. Rivets 8 are installed between each side plate 7 and each of the battery sheet metal brackets 6. Multiple insulating posts 9 are installed on the outer side of each battery sheet metal bracket 6. The two insulating posts 9 on the right side... A fuse 10 is installed between the two insulating posts 9 and the fuse 10. Two screws 11 are installed between the fuse 10 and the two insulating posts 9. A total negative aluminum busbar 12 is installed behind the upper surface of the left sodium battery 4, and a total positive aluminum busbar 13 is installed behind the upper surface of the right sodium battery 4. A series aluminum busbar 14 is installed on the upper surface of the two adjacent sodium batteries 4. A total negative cable 15 is fixedly connected to the outside of the total negative aluminum busbar 12. A total positive cable 16 is fixedly connected to the outside of the insulating post 9 located on the right front. The top ends of the total negative cable 15 and the top ends of the total positive cable 16 are fixedly connected to the top cover 2 by bolts.

[0028] Multiple sodium batteries 4 are securely fixed inside the lower casing 1 using structural adhesive, multiple side plates 7, and battery sheet metal brackets 6. The side plates 7 and battery sheet metal brackets 6 are also connected by multiple rivets 8, allowing them to withstand a 100 kg pressure, thus increasing the safety of the battery module 3. CR foam 5 on both sides of the sodium batteries 4 absorbs and disperses external impact forces, effectively protecting them from collision damage. Multiple insulating posts 9 effectively prevent electrical short circuits and ensure electrical safety. A 450A fuse 10 automatically melts and cuts off the circuit when the current is too high, preventing damage due to overcurrent. To prevent damage to sodium batteries 4 and other electrical components and ensure the safety of the entire battery system, a total negative aluminum busbar 12, multiple series aluminum busbars 14, and a total positive aluminum busbar 13 are set up to achieve electrical series connection between multiple sodium batteries 4, constructing a 12V battery voltage system, so that the battery module 3 can output appropriate voltage and current. Then, bolts are used to fix the top ends of the total negative cable 15 and the top ends of the total positive cable 16 to the upper cover 2 so that the battery can be electrically connected to external equipment later. Finally, liquid potting compound is used to cool the inner cavity of the lower box 1, thereby preventing the battery module 3 from moving around in the box, saving labor costs and the strength of the battery box.

[0029] like Figure 2 and Figure 3As shown, a battery management system 17 is provided on the upper outer side of the battery sheet metal bracket 6 on the right side. A socket 18 is integrally formed on the right side of the battery management system 17. Multiple voltage acquisition line plugs 19 are inserted into the socket 18. The ends of the multiple voltage acquisition line plugs 19 away from the battery management system 17 are respectively fixedly connected to the upper surfaces of the total negative aluminum busbar 12, the total positive aluminum busbar 13 and the multiple series aluminum busbars 14.

[0030] The battery management system 17 is connected to multiple voltage acquisition line plugs 19 via a socket 18 on its outer side, and is also connected to multiple total negative aluminum busbars 12, total positive aluminum busbars 13, and multiple series aluminum busbars 14. This allows for precise acquisition and analysis of the voltage of multiple aluminum busbars, enabling real-time monitoring of the state changes of each sodium battery 4 during charging and discharging. This ensures that each sodium battery 4 is in a balanced charging and discharging state, preventing the overall battery module 3 from being overcharged or over-discharged due to individual batteries, thereby extending the battery's cycle life.

[0031] like Figures 1-3 As shown, both screws 11 are of type M8.

[0032] like Figures 1-3 As shown, the overall material of the multiple battery sheet metal brackets 6 is SECC stamping.

[0033] The overall material of the multiple battery sheet metal brackets 6 is SECC stamping, which can further improve the structural stability of the battery module 3, thereby increasing its service life.

[0034] like Figures 1-3 As shown, the insulating post 9 is model M8.

[0035] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A 12V sodium-ion starter battery comprising a lower box (1), characterized in that: The upper surface of the lower box (1) is provided with an upper cover (2), and the inside of the lower box (1) is provided with a battery module (3); The battery module (3) comprises sodium batteries (4), the number of the sodium batteries (4) is four, a plurality of sodium batteries (4) are connected by structural adhesive paste, the opposite sides of the sodium batteries (4) on the left and the sodium batteries (4) on the right are provided with CR bubble cotton (5), the left and right sides of the two CR bubble cotton (5) are provided with two battery sheet metal supports (6), the front surfaces and the rear surfaces of a plurality of sodium batteries (4) are provided with two side plates (7) in common, and a plurality of rivets (8) are arranged between a plurality of battery sheet metal supports (6) and a plurality of side plates (7) respectively. The overall material of the plurality of battery sheet metal supports (6) is SECC stamping.

2. The 12V sodium-ion starter battery of claim 1, wherein: The outer side of the battery sheet metal support (6) is provided with a plurality of insulating columns (9), the two insulating columns (9) on the right are provided with a fuse (10) therebetween, the fuse (10) and the two insulating columns (9) are provided with two screws (11) therebetween, the upper surface of the sodium battery (4) on the left rear is provided with a total negative aluminum row (12), the upper surface of the sodium battery (4) on the right rear is provided with a total positive aluminum row (13), and the upper surfaces of two adjacent sodium batteries (4) are provided with a series aluminum row (14) in common.

3. The 12V sodium-ion starter battery of claim 2, wherein: The outer side of the total negative aluminum row (12) is fixedly connected with a total negative cable (15), the outer side of the insulating column (9) on the right front is fixedly connected with a total positive cable (16), and the top end of the total negative cable (15) and the top end of the total positive cable (16) are fixedly connected with the upper cover (2) through bolts.

4. The 12V sodium-ion starter battery of claim 2, wherein: The outer side of the battery sheet metal support (6) on the right is provided with a battery management system (17) above, the right side of the battery management system (17) is integrally formed with a socket (18), a plurality of voltage collection line plugs (19) are inserted into the socket (18), and one ends of the plurality of voltage collection line plugs (19) away from the battery management system (17) are fixedly connected with the upper surfaces of the total negative aluminum row (12), the total positive aluminum row (13) and a plurality of series aluminum rows (14).

5. The 12V sodium-ion starter battery of claim 2, wherein: The models of the two screws (11) are both M8 models.

6. The 12V sodium-ion starter battery of claim 1, wherein: The upper surface of the upper cover (2) is provided with a handle (20).

7. The 12V sodium-ion starter battery of claim 2, wherein: The model of the insulating column (9) is M8.

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