CN219371244U

CN219371244U - Sodium ion battery pack convenient to disassemble and overhaul

Info

Publication number: CN219371244U
Application number: CN202320086620.6U
Authority: CN
Inventors: 袁先锋; 朱橙洋
Original assignee: Anhui Zhongna Yingdian New Energy Co ltd
Current assignee: Anhui Zhongna Yingdian New Energy Co ltd
Priority date: 2023-01-30
Filing date: 2023-01-30
Publication date: 2023-07-18
Anticipated expiration: 2033-01-30

Abstract

The utility model provides a sodium ion battery pack convenient to detach and overhaul, which comprises a battery shell and a battery cover, wherein a plurality of sodium ion battery monomers, metal spring plates and metal clamping strips are arranged in the battery shell, the metal clamping strips are clamped at the tops of the sodium ion battery monomers, the metal spring plates are positioned at the lower sides of the sodium ion battery monomers, barrier strips are fixedly connected to the bottoms of the battery shell, the bottoms of the sodium ion battery monomers are clamped between the two barrier strips, side baffles are movably connected to the two sides of the battery shell, the metal spring plates are connected with a cathode connector through connecting wires, and the metal clamping strips are connected with an anode connector through connecting wires. The utility model realizes the purpose of rapid assembly, and the metal clamping strip and the sodium ion battery can be directly and rapidly disassembled by screwing down the bolt, thereby realizing the purpose of convenient disassembly and facilitating the overhaul of the sodium ion battery pack.

Description

Sodium ion battery pack convenient to disassemble and overhaul

Technical Field

The utility model relates to the technical field of sodium ion batteries, in particular to a sodium ion battery pack convenient to detach and overhaul.

Background

Sodium ion batteries are secondary batteries (rechargeable batteries) that operate primarily by means of sodium ions moving between a positive electrode and a negative electrode, similar to the principle of operation of lithium ion batteries,

sodium ion batteries have the advantages over lithium ion batteries: (1) The sodium salt raw material has rich reserves and low price, and compared with the ternary positive electrode material of the lithium ion battery, the iron-manganese-nickel-based positive electrode material has half of the raw material cost; (2) Due to the characteristic of sodium salt, low-concentration electrolyte (the electrolyte with the same concentration, the conductivity of sodium salt is about 20 percent higher than that of lithium electrolyte) is allowed to be used, so that the cost is reduced; (3) The sodium ions do not form alloy with aluminum, and the negative electrode can adopt aluminum foil as a current collector, so that the cost can be further reduced by about 8 percent, and the weight can be reduced by about 10 percent; (4) The sodium-ion battery is allowed to discharge to zero volts due to its non-overdischarge characteristics. The energy density of the sodium ion battery is more than 100Wh/kg, which is comparable with that of the lithium iron phosphate battery, but the sodium ion battery has obvious cost advantage and is expected to replace the traditional lead-acid battery in large-scale energy storage.

In the prior art, when the sodium ion battery used at present is used as a battery pack, a plurality of sodium ion battery monomers are usually combined together, then are bundled by adopting an adhesive tape, are wrapped by using a plastic bag, or are neatly placed in a battery box, and then the battery box is sealed for use, so that if a certain sodium ion battery monomer is damaged, the use attenuation of the sodium ion battery pack is increased, and when the sodium ion battery pack is required to be overhauled, the battery box is usually clamped and sealed when the sodium ion battery pack is disassembled, so that the difficulty of disassembling the battery box is high, and the adhesive tape and the plastic bag are disassembled, so that the adhesive tape and the plastic bag are scrapped directly, and the use cost is increased.

Disclosure of Invention

The present utility model aims to provide a sodium ion battery pack which is convenient to disassemble and overhaul, overcomes or at least partially solves the above-mentioned problems.

In order to achieve the above purpose, the technical scheme of the utility model is specifically realized as follows:

the utility model provides a sodium ion battery pack convenient to detach and overhaul, which comprises a battery shell and a battery cover, wherein the upper side of the battery shell is connected with the battery cover, a plurality of sodium ion battery monomers, metal elastic sheets and metal clamping strips are arranged in the battery shell, the metal clamping strips are clamped at the tops of the sodium ion battery monomers, the metal elastic sheets are positioned at the lower sides of the sodium ion battery monomers and are contacted with the lower parts of the sodium ion battery monomers, barrier strips are fixedly connected at the bottoms of the battery shell, the bottoms of the sodium ion battery monomers are clamped between the two barrier strips, side baffles are movably connected at the two sides of the battery shell and are positioned between the battery shell and the battery cover, the metal elastic sheets are connected with cathode connectors through connecting wires, and the metal clamping strips are connected with anode connectors through connecting wires.

As a further scheme of the utility model, the cross section of the barrier strips is L-shaped, two barrier strips are in one group, a metal elastic sheet is arranged between one group of barrier strips, and a plurality of sodium ion battery monomers are clamped between one group of barrier strips.

As a further scheme of the utility model, the side baffle is rotatably connected with the battery shell through a hinge, a sealing stop lever is arranged between the side baffle and the battery shell, the sealing stop lever is fixedly connected with the battery shell and the side baffle respectively through bolts, threaded holes are formed in the left side and the right side of the battery shell and the lower side face of the side baffle, round holes are formed in the sealing stop lever, and the bolts are arranged on the round holes and the threaded holes.

As a further scheme of the utility model, the top of the battery shell is provided with a bulge, the lower side surface of the battery cover is correspondingly provided with a groove, the bulge is arranged in the groove in a matching way, and the battery cover is fixedly connected with the battery shell and the side baffle through bolts.

As a further scheme of the utility model, the left end part of the battery cover is embedded and fixed with an anode connector and a cathode connector, the left part of the lower side surface of the battery cover is embedded and fixed with two terminal rows, and the two terminal rows are respectively connected with the anode connector and the cathode connector through connecting wires.

As a further scheme of the utility model, the sodium ion battery monomers are connected through a strip clamping ring.

The utility model provides a sodium ion battery pack convenient to detach and overhaul, which has the beneficial effects that: the sodium ion battery is clamped through the barrier strip, clamped and limited through the metal clamping strip, the purpose of rapid assembly is achieved, the sodium ion battery can be rapidly disassembled by screwing down the bolt and directly and rapidly lowering the metal clamping strip and pushing the sodium ion battery, the purpose of convenient disassembly is achieved, the overhaul of the sodium ion battery pack is convenient, the operation is simple, and the use is convenient;

after the overhaul is finished, the new sodium ion battery is replaced, and the sodium ion battery pack is reassembled, so that the sodium ion battery pack can be reused, and the use cost is saved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a schematic view of the structure of a battery case according to the present utility model.

Fig. 3 is a side view of a battery case in the present utility model.

Fig. 4 is a schematic view of the structure of the seal bar in the present utility model.

FIG. 5 is a schematic view of a side dam according to the present utility model.

Fig. 6 is a schematic structural diagram of a metal spring plate in the present utility model.

FIG. 7 is a schematic drawing showing a metal clip strip in a semi-section manner.

Fig. 8 is a schematic view of the structure of a battery cover according to the present utility model.

Fig. 9 is a cross-sectional view of a battery cover in the present utility model.

Fig. 10 is a schematic view of a part of the structure of the long strip clamp ring in the present utility model.

Fig. 11 is a schematic structural diagram of a sodium ion battery cell according to the present utility model.

In the figure: 1. a battery case; 2. sealing stop lever; 3. a strip-shaped clamping ring; 4. sodium ion battery cells; 5. a barrier strip; 6. side baffles; 7. a metal spring plate; 8. a metal clamping strip; 9. a battery cover; 10. an anode joint; 11. a threaded hole; 12. a cathode joint; 13. a terminal block; 21. and a round hole.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

Referring to fig. 1-11, the sodium ion battery pack convenient to detach and overhaul provided by the embodiment of the utility model comprises a battery shell 1 and a battery cover 9, wherein the upper side of the battery shell 1 is connected with the battery cover 9, a plurality of sodium ion battery monomers 4, metal spring plates 7 and metal clamping strips 8 are arranged in the battery shell 1, the metal clamping strips 8 are clamped at the tops of the sodium ion battery monomers 4, the metal spring plates 7 are positioned at the lower sides of the sodium ion battery monomers 4 and are contacted with the lower parts of the sodium ion battery monomers 4, barrier strips 5 are fixedly connected at the bottoms of the battery shell 1, the bottoms of the sodium ion battery monomers 4 are clamped between the two barrier strips 5, side baffles 6 are movably connected at two sides of the battery shell 1, the side baffles 6 are positioned between the battery shell 1 and the battery cover 9, the metal spring plates 7 are connected with cathode connectors 12 through connecting wires, and the metal clamping strips 8 are connected with anode connectors 10 through connecting wires.

In the use process of the utility model, the metal elastic sheet 7 is arranged between the two barrier strips 5, then the barrier strips 5 and the metal elastic sheet 7 are fixed at the inner bottom of the battery shell 1, then the bottoms of the sodium ion battery monomers 4 are slid between the two barrier strips 5, the bottoms of the sodium ion battery monomers 4 are tightly contacted with the metal elastic sheet 7 through the self elasticity of the metal elastic sheet 7, then the metal clamping strip 8 is clamped at the top of the sodium ion battery monomers 4, then the metal elastic sheet 7 is connected with the terminal strip 13 corresponding to the cathode connector 12 through a connecting wire, the metal clamping strip 8 is connected with the terminal strip 13 corresponding to the anode connector 10, finally the side barrier 6 is closed and the battery cover 9 is covered in sequence, and the quick assembly is realized through the fixation of bolts.

When the sodium ion battery monomer 4 needs to be overhauled, the bolts are taken down, the battery cover 9 and the side baffle 6 can be opened, then the metal clamping strip 8 is torn off from the top of the sodium ion battery monomer 4, and the sodium ion battery monomer 4 is pushed out from between the baffle strips 5, so that the purposes of convenient disassembly and convenient overhauling are realized, and meanwhile, the sodium ion battery pack is convenient to replace and reuse rapidly, and the use cost is saved.

As shown in fig. 1 and 3, the cross section of the barrier strip 5 is L-shaped, two barrier strips 5 are in a group, a metal elastic sheet 7 is arranged between the barrier strips 5, and a plurality of sodium ion battery monomers 4 are clamped between the barrier strips 5, so that the lower parts of the sodium ion battery monomers 4 are clamped and limited through the two barrier strips 5, and the bottoms of the sodium ion battery monomers 4 are in close contact with the metal elastic sheet 7.

As shown in fig. 1 and 4, the side baffle 6 is rotatably connected with the battery case 1 through a hinge, a sealing stop lever 2 is arranged between the side baffle 6 and the battery case 1, the sealing stop lever 2 is fixedly connected with the battery case 1 and the side baffle 6 through bolts, threaded holes 11 are formed in the left side and the right side of the battery case 1 and the lower side of the side baffle 6, round holes 21 are formed in the sealing stop lever 2, the bolts are arranged on the round holes 21 and the threaded holes 11, the side baffle 6 is convenient to limit through the sealing stop lever 2, and gaps between the side baffle 6 and the battery case 1 are also convenient to seal.

As shown in fig. 2, 3 and 8, the top of the battery case 1 is provided with a protrusion, the lower side of the battery cover 9 is correspondingly provided with a groove, the protrusion is matched and arranged in the groove, and the battery cover 9 is fixedly connected with the battery case 1 and the side baffle 6 through bolts, so that the battery cover 9 and the battery case 1 can be aligned quickly.

As shown in fig. 8 and 9, the anode connector 10 and the cathode connector 12 are fixedly embedded in the left end of the battery cover 9, two terminal rows 13 are fixedly embedded in the left part of the lower side surface of the battery cover 9, the two terminal rows 13 are respectively connected with the anode connector 10 and the cathode connector 12 through connecting wires, and the terminal rows 13 are convenient to connect with a plurality of metal spring plates 7 and a plurality of metal clamping strips 8, so as to connect a plurality of sodium ion battery monomers 4.

As shown in fig. 1 and 10, the sodium ion battery cells 4 are connected through the strip-shaped clamping ring 3, so that a plurality of adjacent sodium ion battery cells 4 in a row are connected together, and are limited, and the scattered arrangement of the sodium ion battery cells is avoided.

The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and changes may be made to the present application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. which are within the spirit and principles of the present application are intended to be included within the scope of the claims of the present application.

Claims

1. The utility model provides a sodium ion battery pack convenient to dismantle and overhaul, includes battery case (1) and battery cover (9), battery case (1) upside is connected with battery cover (9), a serial communication port, battery case (1) inside is provided with a plurality of sodium ion battery monomer (4), metal shrapnel (7) and metal card strip (8), metal card strip (8) joint is at the top of sodium ion battery monomer (4), metal shrapnel (7) are located the free downside of sodium ion battery monomer (4) to contact with sodium ion battery monomer (4) lower part, bottom fixedly connected with blend stop (5) in battery case (1), the free bottom joint of sodium ion battery monomer (4) is between two blend stops (5), battery case (1) both sides swing joint has side shield (6), and side shield (6) are located between battery case (1) and battery cover (9), metal card strip (7) are connected with negative pole joint (12) through the connecting wire, metal card strip (8) are connected with positive pole (10) through connecting wire.

2. The sodium ion battery pack convenient to disassemble and overhaul as claimed in claim 1, wherein the cross section of the barrier strips (5) is L-shaped, two barrier strips (5) are one group, a metal elastic sheet (7) is arranged between one group of barrier strips (5), and a plurality of sodium ion battery monomers (4) are clamped between one group of barrier strips (5).

3. The sodium ion battery pack convenient to detach and overhaul according to claim 1, wherein the side baffle plate (6) is rotationally connected with the battery shell (1) through a hinge, a sealing stop lever (2) is arranged between the side baffle plate (6) and the battery shell (1), the sealing stop lever (2) is fixedly connected with the battery shell (1) and the side baffle plate (6) through bolts respectively, threaded holes (11) are formed in the left side and the right side of the battery shell (1) and the lower side of the side baffle plate (6), round holes (21) are formed in the sealing stop lever (2), and the bolts are arranged on the round holes (21) and the threaded holes (11).

4. The sodium ion battery pack convenient to detach and overhaul according to claim 3, wherein the top of the battery case (1) is provided with a bulge, the lower side surface of the battery cover (9) is correspondingly provided with a groove, the bulge is arranged in the groove in a matching way, and the battery cover (9) is fixedly connected with the battery case (1) and the side baffle (6) through bolts.

5. The sodium ion battery pack convenient to detach and overhaul as claimed in claim 4, wherein the anode connector (10) and the cathode connector (12) are embedded and fixed at the left end part of the battery cover (9), two terminal rows (13) are embedded and fixed at the left part of the lower side surface of the battery cover (9), and the two terminal rows (13) are respectively connected with the anode connector (10) and the cathode connector (12) through connecting wires.

6. The sodium ion battery pack convenient to disassemble and overhaul as claimed in claim 1, wherein the sodium ion battery cells (4) are connected through strip-shaped clamping rings (3).