CN206558589U

CN206558589U - Explosion-proof safe zinc-manganese battery structure

Info

Publication number: CN206558589U
Application number: CN201621367558.4U
Authority: CN
Inventors: 陈水标; 孙刚
Original assignee: ZHEJIANG MUSTANG BATTERY CO Ltd
Current assignee: Zhejiang Wild Horse Battery Ltd By Share Ltd
Priority date: 2016-12-07
Filing date: 2016-12-07
Publication date: 2017-10-13
Anticipated expiration: 2026-12-07

Abstract

The utility model discloses an explosion-proof safety zinc-manganese battery structure, which is provided with a positive plate, wherein a copper cap positive electrode (1) is arranged on the positive plate side, a manganese cell (3) is filled in the battery, a galvanized punched steel strip is selected as a negative plate, and the negative plate forms a battery negative electrode (2); the positive plate and the negative plate are wound into a cylinder with the negative plate at the outermost, the cylinder is wrapped by the battery barrel shell (4), a layer of zinc paste (5) is tightly attached to the inner side of the battery barrel shell (4), one end of the battery is an insulating bottom (6), the insulating bottom (6) and a battery roll-up edge (7) are integrally formed, a ring of the battery roll-up edge (7) is pressed downwards to be sunken, and 3-5 small holes are formed in the ring. The utility model provides a novel zinc-manganese battery structure, the specific energy of battery improves 3-5 times.

Description

Explosion-proof safe zinc-manganese battery structure

Technical Field

The utility model relates to a battery production field, concretely relates to explosion-proof safe type zinc-manganese battery structure.

Background

Alkaline zinc-manganese cell occupies important proportion in whole battery family, and explosion-proof safe type zinc-manganese cell structure is one of the main difficult point that needs the improvement, because zinc-manganese cell often seals inadequately among the prior art, and the energy is difficult to improve all the time, the utility model discloses on the basis of prior art's technical difficulty, break conventional sealing technology thinking, propose a neotype explosion-proof safe type zinc-manganese cell structure.

The utility model aims to solve the technical problems of poor sealing and low energy consumption of the zinc-manganese battery; the existing diaphragm plate is easy to cause short circuit of the battery; the explosion-proof small hole can effectively prevent the battery from exploding

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a zinc-manganese cell's novel back cover structure, the energy storage of solving among the prior art is not enough, sealed not good technical problem. The explosion-proof small holes are arranged to effectively prevent the battery from exploding.

An explosion-proof safe zinc-manganese battery structure is provided with a positive plate, a copper cap positive electrode (1) is arranged on the positive plate side, a manganese battery core (3) is filled in the battery, a galvanized punched steel strip is selected as a negative plate, and the negative plate forms a battery negative electrode (2); the positive plate and the negative plate are wound into a cylinder with the negative plate on the outermost side, the cylinder is wrapped by the battery barrel shell (4), a layer of zinc paste (5) is tightly attached to the inner side of the battery barrel shell (4), one end of the battery is an insulating bottom (6), the insulating bottom (6) and a battery roll rim (7) are integrally formed, a ring of the battery roll rim (7) is pressed downwards to be sunken, and 3-5 small holes are formed in the ring.

Further, there are 4 apertures. Preferably, the inner side of the insulating bottom (6) is provided with bottom supporting paper.

Further, a paste layer of a mixture of sodium dodecylbenzenesulfonate and cetyltrimethylammonium bromide is added to the zinc paste (5).

More preferably, the thickness of the paste layer of the mixture of the sodium dodecyl benzene sulfonate and the hexadecyl trimethyl ammonium bromide is 1/10000 of the thickness of the zinc paste (5).

In a further improvement of the present invention, the polyvinyl alcohol layer is made of PVA 18-99. Compared with the prior art, the utility model, have following obvious advantage:

the utility model discloses set up explosion-proof aperture and can effectively prevent the battery explosion, integrated into one piece's battery back cover structure has improved the specific energy, can effectively improve about 3-5 times. The zinc paste is added with the paste layer of the mixture of sodium dodecyl benzene sulfonate and hexadecyl trimethyl ammonium bromide, so that the ohmic internal resistance of the battery is reduced, the heat generated during high-rate charge and discharge of the battery is reduced, the damage to the battery caused by high temperature of the battery due to high-rate charge and discharge is avoided, and the possibility of internal short circuit of the battery is reduced.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

The reference numerals in fig. 1 are respectively: 1. a copper cap positive electrode; 2. a battery negative electrode; 3. a manganese cell core; 4. a battery can; 5. zinc paste; 6. an insulating base; 7. and (5) crimping the battery.

Detailed Description

As shown in fig. 1, an explosion-proof safety zinc-manganese battery structure is provided, wherein a copper cap anode 1 is arranged on the anode plate side, a manganese battery core 3 is filled in the battery, a galvanized punched steel strip is selected as a cathode plate 2 of the battery, the anode plate and the cathode plate are wound into a cylinder with the cathode plate at the outermost side, a battery cylinder shell 4 wraps the cylinder, a layer of zinc paste 5 is tightly attached to the inner side of the battery cylinder shell 4, one end of the battery is an insulating bottom 6, the insulating bottom 6 and a battery roll rim 7 are integrally formed, a ring of the battery roll rim 7 is pressed downwards and sunken, and 4 small holes are formed in the ring. The number of the small holes is 4, and the small holes are used for preventing explosion caused by increase of the internal pressure of the battery. Further, the utility model discloses a 6 inboards are equipped with and hold in the palm the body paper at the bottom of the insulation.

The utility model solves the technical problem of poor sealing in the prior art; the explosion-proof small holes are arranged to effectively prevent the battery from exploding.

Taking the above example as example 1 of the present invention, the comparative example is a D-type 8Ah nickel-metal hydride battery: selecting foamed nickel as the matrix of the positive plate, adding Ni (OH) ₂ Mixing the slurry, filling the slurry into foamed nickel, drying, rolling, cutting and manufacturing into a positive plate; selecting a nickel-plated punched steel strip as a negative plate substrate, and using hydrogen storage alloy powder as a negative active substance to manufacture a negative plate; taking a negative plate, a diaphragm and a positive plate, and winding the negative plate, the diaphragm and the positive plate into a cylindrical electrode group with the negative plate at the outermost side; after an annular insulator is sleeved on an end face formed by a positive electrode smooth edge of the electrode group, a bowl-shaped positive electrode bus bar and a bowl-shaped negative electrode bus bar with a plane bottom surface are respectively welded at the positive electrode end and the negative electrode end of the electrode group; the bottom circular sheet and the upward flanging of the positive electrode bus bar are firmly welded with the bottom of the positive electrode end battery cover with the air release valve and the outer wall of the circular table, and the bottom circular sheet and the downward flanging of the negative electrode bus bar are firmly welded with the top of the negative electrode end battery cover with the air release valve and the outer wall of the circular table; the contact parts of the positive electrode end battery cover and the negative electrode end battery cover and the battery shell are respectively provided with a sealing ring, the electrodes are assembled into the battery shell with two open ends, one end is rolled and sealed, after electrolyte is filled, the other end is rolled and sealed, and the battery is assembled. And testing the battery performance after formation.

The back cover of above-mentioned comparative example is not adopting the utility model discloses integrated into one piece's back cover structure to there is not explosion-proof aperture. Comparing the performance of the examples with that of the comparative examples, the 3C charging 2.5 minutes of the present invention cell voltage/V was 1.752, while that of the comparative example was 1.579; the explosion-proof condition of the present example was good, while the explosion-proof condition of the comparative example was very general. The comparison shows that the sodium dodecyl benzene sulfonate and the hexadecyl trimethyl ammonium bromide mixture paste layer are added into the zinc paste, so that the ohmic internal resistance of the battery is reduced, the heat generated during high-rate charge and discharge of the battery is reduced, the damage to the battery caused by high temperature of the battery due to high-rate charge and discharge is avoided, and the possibility of internal short circuit of the battery is reduced. The explosion-proof condition becomes good, and the novel back cover structure of zinc-manganese dioxide battery solves the technical problems of insufficient energy storage and poor sealing in the prior art.

The foregoing is only a few specific embodiments of the present invention, and it should be noted that many variations and modifications can be made by those skilled in the art; all such variations and modifications are to be considered within the scope of the present invention.

Claims

1. An explosion-proof safe zinc-manganese battery structure is characterized in that the battery is provided with a positive plate, a copper cap positive electrode (1) is arranged on the side of the positive plate, a manganese cell (3) is filled in the battery, a galvanized punched steel strip is selected as a negative plate, and the negative plate forms a battery negative electrode (2); the positive plate and the negative plate are wound into a cylinder with the negative plate on the outermost side, the cylinder is wrapped by the battery barrel shell (4), a layer of zinc paste (5) is tightly attached to the inner side of the battery barrel shell (4), one end of the battery is an insulating bottom (6), the insulating bottom (6) and a battery roll rim (7) are integrally formed, the ring of the battery roll rim (7) is pressed downwards to be sunken, and 3-5 small holes are formed in the ring.

2. An explosion-proof safety zinc-manganese battery construction as claimed in claim 1, characterized in that there are 4 said apertures.

3. An explosion-proof safety type zinc-manganese battery structure as claimed in claim 1, characterized in that the inside of the insulating bottom (6) is provided with a bottom supporting paper.