High-power silver oxide button cell

Abstract

The utility model relates to the technical field of silver oxide batteries, and discloses a high-power silver oxide button battery which comprises a protective shell, a positive shell is clamped at the lower end of the protective shell, a negative shell is embedded at the top of an inner cavity of the protective shell, a sealing rubber sleeve is sleeved on the outer side of the negative shell, the upper end of the sealing rubber sleeve is open, and the lower end of the sealing rubber sleeve is open. A negative electrode connecting inner ring is integrally formed along the inner edge of the lower end of the sealing rubber sleeve; through cooperation of the sealing rubber sleeve, the negative electrode connecting inner ring, the negative electrode shell and the positive electrode shell, the negative electrode connecting inner ring facilitates protection of the opening end of the negative electrode shell, so that the opening of the negative electrode shell is prevented from damaging the sealing rubber sleeve, the sealing effect is improved, and meanwhile, the negative electrode shell is prevented from being in contact with the negative electrode filler to generate chemical reaction; the sealing performance of the silver oxide button battery is improved, so that electrolyte leakage is avoided, the battery capacity is improved, the battery power is guaranteed, and the service life of the silver oxide button battery is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of silver oxide batteries, in particular to a high-power silver oxide button battery. Background Art

[0002] Silver oxide battery is a common primary battery, also known as silver-zinc battery. It is widely used in various electronic devices and small electronic products, such as watches, calculators, remote controls, etc. Silver oxide battery is favored for its high energy density, long life and stability; the working principle of silver oxide battery is simple and reliable. It converts chemical energy into electrical energy through chemical reaction, realizing the long-term power supply of the battery. The button battery has the characteristics of long service life and large capacity, and is widely used, with the largest application volume;

[0003] In order to increase the capacity of the battery in the existing market, the structure of the negative electrode cover of the zinc oxide battery is modified by removing the reverse edge of the negative electrode cover. After removing the reverse edge, the cut of the negative electrode cover is directly pressed on the bottom of the sealing ring, which can easily cause the negative electrode cover to cut off the sealing ring, thereby causing the electrolyte to leak and cause the battery to fail. Therefore, we need to propose a high-power silver oxide button battery. Utility Model Content

[0004] The purpose of the utility model is to provide a high-power silver oxide button battery, which is sealed by a sealing ring and a negative electrode cover, thereby increasing the battery capacity while ensuring the battery power, and the battery assembly is simple and convenient, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-power silver oxide button battery, comprising a protective shell, a positive electrode shell is clamped at the lower end of the protective shell, a negative electrode shell is embedded in the top of the inner cavity of the protective shell, a sealing rubber sleeve is sleeved on the outer side of the negative electrode shell, the upper end of the sealing rubber sleeve is open, a negative electrode connecting inner ring is integrally formed along the inner edge of the lower end of the sealing rubber sleeve, a cavity for embedding the negative electrode shell is formed between the negative electrode connecting inner ring and the sealing rubber sleeve, a circular hole for embedding the negative electrode shell is opened on the upper surface of the protective shell, the inner cavity of the negative electrode shell is filled with negative electrode filler, the lower surface of the sealing rubber sleeve is in contact with a diaphragm, and the outer edge of the lower end of the negative electrode shell is rounded.

[0006] Preferably, a conductive groove is provided in the middle of the upper surface of the positive electrode shell, a splicing ring is fixedly connected to the upper surface of the positive electrode shell, and an anti-slip ring is integrally formed on the outer upper end of the splicing ring.

[0007] Preferably, an annular inner groove for inserting a splicing ring is provided along the edge of the lower end of the inner cavity of the protective shell, and an annular anti-slip groove for inserting an anti-slip ring is provided at one end of the annular inner groove away from the opening of the lower end of the protective shell.

[0008] Preferably, a conductive reinforcing sheet is provided at the bottom of the inner cavity of the positive electrode shell, and connecting sheets are fixedly connected to both sides of the conductive reinforcing sheet, wherein a group of the connecting sheets is embedded in the conductive groove.

[0009] Preferably, a sealing gasket is provided on the upper surface of the conductive reinforcing sheet, a through hole for embedding another group of connecting sheets is opened on the lower surface of the sealing gasket, and a positive electrode filler is provided in the inner cavity of the sealing gasket.

[0010] Preferably, a conductive nickel mesh is arranged above the positive electrode filler, the conductive nickel mesh is arranged on the lower surface of the diaphragm, and the diaphragm is arranged at the upper opening of the sealing gasket.

[0011] Preferably, the negative electrode filler is zinc powder, the positive electrode filler is silver oxide, the outer diameter of the sealing gasket is larger than the inner diameter of the protective shell, and the outer diameter of the negative electrode shell is larger than the inner diameter of the sealing rubber sleeve.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model mainly cooperates between the sealing rubber sleeve, the negative electrode connecting inner ring, the negative electrode shell and the positive electrode shell, and the negative electrode connecting inner ring is used to protect the open end of the negative electrode shell, thereby avoiding damage to the sealing rubber sleeve at the opening of the negative electrode shell, improving the sealing effect, and avoiding chemical reaction between the negative electrode shell and the negative electrode filler in contact, thereby improving the sealing of the silver oxide button battery, thereby avoiding electrolyte leakage, thereby increasing the battery capacity while ensuring the battery power, and increasing the service life of the silver oxide button battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the battery anode structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the battery cathode structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of the battery body of the utility model;

[0018] Figure 5 for Figure 4 Schematic diagram of the structure enlarged at point A in the middle.

[0019] In the figure: 1. Protective shell; 2. Negative electrode shell; 3. Positive electrode shell; 4. Splicing ring; 5. Anti-slip ring; 6. Conductive groove; 7. Conductive reinforcement sheet; 8. Connecting sheet; 9. Sealing gasket; 10. Through hole; 11. Positive electrode filler; 12. Diaphragm; 13. Sealing rubber sleeve; 14. Negative electrode filler; 15. Negative electrode connecting inner ring; 16. Annular inner groove; 17. Annular anti-slip groove; 18. Conductive nickel mesh. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-5 The utility model provides a technical solution: a high-power silver oxide button battery, comprising a protective shell 1, a positive electrode shell 3 is clamped at the lower end of the protective shell 1, a negative electrode shell 2 is embedded in the top of the inner cavity of the protective shell 1, a sealing rubber sleeve 13 is sleeved on the outer side of the negative electrode shell 2, the upper end of the sealing rubber sleeve 13 is open, a negative electrode connecting inner ring 15 is integrally formed along the inner edge of the lower end of the sealing rubber sleeve 13, a cavity for embedding the negative electrode shell 2 is formed between the negative electrode connecting inner ring 15 and the sealing rubber sleeve 13, a circular hole for embedding the negative electrode shell 2 is opened on the upper surface of the protective shell 1, the inner cavity of the negative electrode shell 2 is filled with a negative electrode filler 14, a diaphragm 12 is abutted on the lower surface of the sealing rubber sleeve 13, and the outer edge of the lower end of the negative electrode shell 2 is rounded.

[0022] A conductive groove 6 is provided in the middle of the upper surface of the positive electrode shell 3, and a splicing ring 4 is fixedly connected to the upper surface of the positive electrode shell 3. An anti-slip ring 5 is integrally formed at the upper end of the outer side of the splicing ring 4. The anti-slip ring 5 improves the stability of the connection between the positive electrode shell 3 and the protective shell 1 to prevent the positive electrode shell 3 from falling off.

[0023] An annular inner groove 16 for inserting the splicing ring 4 is provided along the edge of the lower end of the inner cavity of the protective shell 1, and an annular anti-slip groove 17 for inserting the anti-slip ring 5 is provided at one end of the annular inner groove 16 away from the lower end opening of the protective shell 1. The annular inner groove 16 facilitates the installation of the positive electrode shell 3, and the annular anti-slip groove 17 prevents the positive electrode shell 3 from falling off, thereby improving the stability of the positive electrode shell 3 after installation.

[0024] A conductive reinforcement sheet 7 is provided at the bottom of the inner cavity of the positive electrode shell 3, and connecting sheets 8 are fixedly connected to both sides of the conductive reinforcement sheet 7, wherein a group of connecting sheets 8 is embedded in the conductive groove 6. The power output effect of the button battery is improved by the conductive reinforcement sheet 7 and the connecting sheet 8, so as to facilitate matching of button batteries of different capacities and improve the scope of application.

[0025] A sealing gasket 9 is provided on the upper surface of the conductive reinforcement sheet 7, and a through hole 10 is provided on the lower surface of the sealing gasket 9 for another set of connecting sheets 8 to be embedded. A positive electrode filler 11 is provided in the inner cavity of the sealing gasket 9. The sealing gasket 9 improves the sealing between the positive electrode shell 3 and the protective shell 1, thereby improving the service life of the silver oxide button battery.

[0026] A conductive nickel mesh 18 is arranged above the positive electrode filler 11, and the conductive nickel mesh 18 is arranged on the lower surface of the diaphragm 12. The diaphragm 12 is arranged at the upper opening of the sealing gasket 9. The conductive nickel mesh 18 can improve the current conversion efficiency between the positive electrode filler 11 and the negative electrode filler 14.

[0027] The negative electrode filler 14 is zinc powder, the positive electrode filler 11 is silver oxide, the outer diameter of the sealing gasket 9 is larger than the inner diameter of the protective shell 1, the outer diameter of the negative electrode shell 2 is larger than the inner diameter of the sealing rubber sleeve 13, and the negative electrode shell 2 is interference fit with the protective shell 1 through the sealing rubber sleeve 13, thereby improving the sealing effect, and the interference fit between the sealing gasket 9 and the protective shell 1 can avoid leakage of the positive electrode filler 11, thereby improving the service life of the button battery.

[0028] When in use, the negative electrode shell 2 is inserted into the sealing rubber sleeve 13 inside the box filled with inert gas, and then the sealing rubber sleeve 13 is embedded in the protective shell 1, so that the sealed end of the negative electrode shell 2 is embedded in the upper circular opening of the protective shell 1, and then the negative electrode filler 14 is filled in the inner cavity of the negative electrode shell 2, and the electrolytic solution is dripped into it, and the diaphragm 12 is used to cover the lower surface of the sealing rubber sleeve 13 to cover the negative electrode filler 14, and then the sealing gasket 9 is inserted into the protective shell 1 and contacts the lower surface of the diaphragm 12. The conductive nickel mesh 18 fills the positive electrode filler 11 into the positive electrode cavity formed by the diaphragm 12 and the sealing gasket 9, and then seals the positive electrode filler 11 through the conductive reinforcement sheet 7, so that the splicing ring 4 of the positive electrode shell 3 fits with the annular inner groove 16 of the protective shell 1, and the anti-slip ring 5 is embedded in the annular anti-slip groove 17 after pressing hard, thereby realizing the production of high-power button batteries, improving the sealing of button batteries, avoiding electrolyte leakage, and facilitating assembly, thereby increasing the service life of button batteries.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-power silver oxide button battery, comprising a protective housing (1), characterized in that: The lower end of the protective shell (1) is clamped with a positive electrode shell (3), and the top of the inner cavity of the protective shell (1) is embedded with a negative electrode shell (2). The outer side of the negative electrode shell (2) is sleeved with a sealing rubber sleeve (13), and the upper end of the sealing rubber sleeve (13) is open. The lower end of the sealing rubber sleeve (13) is integrally formed with a negative electrode connecting inner ring (15) along the inner edge, and a cavity for embedding the negative electrode shell (2) is formed between the negative electrode connecting inner ring (15) and the sealing rubber sleeve (13). The upper surface of the protective shell (1) is provided with a circular hole for embedding the negative electrode shell (2), and the inner cavity of the negative electrode shell (2) is filled with a negative electrode filler (14). The lower surface of the sealing rubber sleeve (13) is in contact with a diaphragm (12), and the outer edge of the lower end of the negative electrode shell (2) is rounded.

2. A high-power silver oxide button battery according to claim 1, characterized in that: A conductive groove (6) is provided in the middle of the upper surface of the positive electrode shell (3), a splicing ring (4) is fixedly connected to the upper surface of the positive electrode shell (3), and an anti-slip ring (5) is integrally formed at the upper outer end of the splicing ring (4).

3. A high-power silver oxide button battery according to claim 2, characterized in that: An annular inner groove (16) for inserting the splicing ring (4) is provided along the edge of the lower end of the inner cavity of the protective shell (1), and an annular anti-slip groove (17) for inserting the anti-slip ring (5) is provided at one end of the annular inner groove (16) away from the lower end opening of the protective shell (1).

4. A high-power silver oxide button battery according to claim 3, characterized in that: A conductive reinforcement sheet (7) is provided at the bottom of the inner cavity of the positive electrode shell (3), and connecting sheets (8) are fixedly connected to both sides of the conductive reinforcement sheet (7), wherein a group of the connecting sheets (8) is embedded in the conductive slot (6).

5. A high-power silver oxide button battery according to claim 4, characterized in that: A sealing gasket (9) is arranged on the upper surface of the conductive reinforcing sheet (7), a through hole (10) is provided on the lower surface of the sealing gasket (9) for embedding another group of connecting sheets (8), and a positive electrode filler (11) is arranged in the inner cavity of the sealing gasket (9).

6. A high-power silver oxide button battery according to claim 5, characterized in that: A conductive nickel mesh (18) is arranged above the positive electrode filler (11), and the conductive nickel mesh (18) is arranged on the lower surface of the diaphragm (12), and the diaphragm (12) is arranged at the upper opening of the sealing gasket (9).

7. A high-power silver oxide button battery according to claim 6, characterized in that: The negative electrode filler (14) is zinc powder, the positive electrode filler (11) is silver oxide, the outer diameter of the sealing gasket (9) is larger than the inner diameter of the protective shell (1), and the outer diameter of the negative electrode shell (2) is larger than the inner diameter of the sealing rubber sleeve (13).

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