CN211182252U

CN211182252U - Alkaline manganese cell with high sealing performance

Info

Publication number: CN211182252U
Application number: CN201922348521.7U
Authority: CN
Inventors: 陈水标; 孙刚; 何辨良
Original assignee: Zhengjiang Mustang Battery Co ltd
Current assignee: Zhengjiang Mustang Battery Co ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-08-04
Anticipated expiration: 2029-12-24

Abstract

An alkaline manganese battery with high sealing performance sequentially comprises a negative current collector, a negative filler cavity, isolating paper, a positive filler cavity, conductive graphite, a steel shell, an outer label and a sealing device positioned at the bottom of the battery from inside to outside, wherein the sealing device comprises a sealing ring and a toughened film; the sealing ring is positioned in the steel shell and sleeved on the negative current collector; the toughened film is positioned below the sealing ring and sleeved on the negative current collector, and a negative bottom cover is arranged below the toughened film; and curing glue is filled in the gap around the negative electrode bottom cover. The utility model discloses a be equipped with the recess at the sealing washer top, make barrier paper and sealing washer can closely laminate, prevent anodal filler and negative filler contact. Be equipped with the tempering film in the sealing washer bottom and can prevent on the one hand explosion-proof, on the other hand can effectively prevent sealing washer and external environment contact, protection sealing washer prevents that the sealing washer from becoming invalid. The gap between the positive electrode and the negative electrode at the bottom of the battery is filled with the curing adhesive, so that the sealing ring is further protected, and a good sealing effect is achieved.

Description

Alkaline manganese cell with high sealing performance

Technical Field

The utility model relates to an alkaline manganese cell structure, concretely relates to alkaline manganese cell with high leakproofness ability.

Background

The alkaline manganese cell is developed on the basis of alkaline zinc-manganese cell, and is also called mercury-free alkaline manganese cell because of the application of mercury-free zinc powder and novel additive. The battery can be charged and used for dozens of times to hundreds of times without changing the discharge characteristic of the original alkaline battery, and is economical and practical. The alkaline manganese battery has the characteristics that: 1. the open-circuit voltage is 1.5V;2. the working temperature range is wide between minus 20 ℃ and 60 ℃, and the device is suitable for alpine regions; 3. the capacity of the acid zinc-manganese battery is about 5 times of that of the acid zinc-manganese battery after heavy current continuous discharge; 4. its low-temp discharge performance is also good.

The bottom sealing ring of the existing alkaline manganese battery is of a high-molecular structure, is generally nylon or PP, and the material contains certain moisture and has a gap, so that the material is exposed in the air for a long time and is in contact with the air, the moisture can be lost, the anti-explosion pressure of the sealing ring is reduced, the sealing ring is broken to cause battery leakage after a certain degree, even the moisture in the battery can be exchanged with the outside through the gap of the sealing ring, the service life of the battery is shortened, and the use performance is reduced. In addition, the positive electrode and the negative electrode at the bottom of the existing alkaline manganese battery are separated by a certain space gap, the insulation protection effect is not good enough, for example, a hard elastic sheet is easy to scratch, the positive electrode and the negative electrode of the alkaline manganese battery are directly connected to form a short circuit, and therefore the phenomena of heating, alkali climbing, liquid leakage and the like can occur.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide an alkaline manganese battery with high sealing performance. The structure that adopts sealing washer and tempering film to combine together can be explosion-proof on the one hand, and on the other hand can effectively prevent sealing washer and external environment contact, protects the sealing washer, prevents that the sealing washer from becoming invalid. The utility model discloses still be equipped with the packing ring in negative pole bottom and the box hat clearance that lies in the battery bottom, negative pole bottom and box hat all are equipped with the draw-in groove corresponding with the packing ring to prevent that the packing ring from following the above-mentioned clearance problem of droing. The utility model discloses adopt the solidification to glue in the interelectrode clearance of the positive negative pole of battery bottom and fill, further protection sealing washer plays good sealed effect.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts as follows:

the utility model provides an alkaline manganese cell with high sealing performance, includes the box hat, electrically conducts graphite, positive filling chamber, barrier paper, negative filling chamber, negative current collector and negative pole bottom, the battery bottom is equipped with sealing device, sealing device includes sealing washer, toughened film, the sealing washer is located the box hat and overlaps on the negative current collector, the toughened film is located sealing washer below and cover on the negative current collector, the toughened film below is equipped with the negative pole bottom, the negative pole bottom is the clearance department all around fills the curing glue.

Preferably, the top of the sealing ring is provided with a groove, and the isolation paper is embedded into the groove of the sealing ring.

Preferably, the toughened film and the sealing ring are bonded together by using a curing adhesive.

Preferably, the curing glue is AB glue.

Preferably, a gasket is arranged in a gap between the cathode bottom cover and the steel shell.

The negative electrode bottom cover is further in a circular truncated cone shape, and a second clamping groove is formed in the bottom of the negative electrode bottom cover.

Further the bottom of the steel shell is provided with a first clamping groove.

Further, the gasket is in a wave shape.

Compared with the prior art, the beneficial effects of the utility model reside in that:

1. the utility model discloses a sealing device adopts the mode that sealing washer and toughened film combined together, can be explosion-proof on the one hand, and on the other hand can effectively prevent sealing washer and external environment contact, and the protection sealing washer prevents that the sealing washer from becoming invalid to reach high leakproofness's effect. The utility model discloses be equipped with the recess at the sealing washer top, in the barrier paper embedding sealing washer recess, can prevent effectively that anodal filler and negative filler from contacting, avoid the battery short circuit, prevent that the battery from generating heat, climbing phenomenon such as alkali, weeping from appearing. The utility model discloses a AB glue comes bonding sealing washer and toughened film, can make sealing washer and toughened film bonding inseparabler.

2. The solidification glue for AB glue, fill completely to space between negative pole bottom and box hat, can make positive negative pole keep apart completely, what AB glued has very high bonding strength moreover, can use at-60 ℃ -100 ℃ environment, accord with the use difference in temperature of alkali-manganese cell, the insulating protection of positive negative pole that is particularly suitable for alkali-manganese cell prevents to take place the short circuit to can appear generating heat, climb phenomenons such as alkali, weeping.

3. The utility model discloses still be equipped with the packing ring in the clearance of the negative pole bottom that lies in the battery bottom and box hat, the box hat is connected one side with the packing ring and is equipped with the first draw-in groove corresponding with the packing ring, and negative pole bottom is connected one side with the packing ring and is provided with the second draw-in groove corresponding with the packing ring to prevent the problem that the packing ring drops from above-mentioned space.

4. The utility model discloses the packing ring shape adopts the wave, compares in sharp linear shape packing ring, and it takes precautions against earthquakes, and explosion-proof performance has had the improvement that is showing.

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is a schematic structural diagram of a preferred alkaline manganese cell of the present invention;

FIG. 2 is a schematic view of the gasket of the present invention;

the outer label 1, the steel shell 2, the conductive graphite 3, the positive electrode filler cavity 4, the isolation paper 5, the negative electrode filler cavity 6, the negative electrode current collector 7, the sealing ring 8, the toughened film 9, the first clamping groove 10, the gasket 11, the negative electrode bottom cover 12, the curing adhesive 13, the second clamping groove 14, the cathode sealing agent 15 and the negative electrode sealing agent 16.

Detailed Description

As shown in fig. 1, the alkaline manganese dioxide cell with high sealing performance of the present invention sequentially comprises a negative current collector 7, a negative filler cavity 6, an isolation paper 5, a positive filler cavity 4, conductive graphite 3, a steel shell 2, an outer label 1, and a sealing device located at the bottom of the cell, wherein the sealing device comprises a sealing ring 8 and a toughened film 9; the sealing ring 8 is positioned in the steel shell 1 and sleeved on the negative current collector 7, the contact surface of the sealing ring 8 and the negative current collector 7 is coated with a cathode sealing agent 15, and the contact surface of the sealing ring 8 and the steel shell 2 is coated with a negative sealing agent 16. The top of the sealing ring 8 is provided with a groove corresponding to the isolation paper 5, so that the sealing ring 8 and the isolation paper 5 are attached more tightly, and the negative filler and the positive filler are prevented from contacting with each other. The toughened film 9 is fixed in the bottom of the sealing ring 8 by utilizing curing glue, so that on one hand, the toughened film can be explosion-proof, on the other hand, the sealing ring can be effectively prevented from contacting with the external environment, the sealing ring is protected, the sealing ring is prevented from being out of work, and the effect of high sealing performance is achieved. In order to further fix and prevent the sealing ring 8 from contacting with the external environment and completely isolate the anode and the cathode, and prevent the alkaline manganese battery from short circuit, heating, alkali leakage, leakage and the like, curing glue is adopted to completely fill the gap between the cathode bottom cover 12 and the steel shell 2. The utility model discloses in, form a solidification rubber ring after the solidification is glued to the solidification.

In the preferred scheme, the utility model discloses an inner wall of steel-shelled 2 has one deck electrically conductive graphite 3.

In the preferred scheme, the utility model discloses a solidification is glued 13 and is glued for AB.

The utility model discloses negative pole bottom 12 adopts the round platform shape to the cover has increased the area of contact with the negative current collector on negative current collector 7, makes alkaline manganese cell practical function better.

The utility model discloses still be provided with the packing ring in the negative pole bottom 12 that lies in the battery bottom and the 2 clearances of box hat, box hat 2 and negative pole bottom 12 are equipped with the corresponding first draw-in groove 10 in one side that is connected with packing ring 11 respectively, second draw-in groove 14 to effectively prevent the packing ring from above-mentioned space problem of coming off, prevented the battery short circuit.

In the preferred scheme, the utility model discloses the packing ring adopts the wave, compares in sharp linear form packing ring, and it takes precautions against earthquakes, and explosion-proof performance has had the improvement that is showing.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. An alkaline manganese battery with high sealing performance comprises a steel shell (2), conductive graphite (3), a positive electrode filler cavity (4), isolation paper (5), a negative electrode filler cavity (6), a negative electrode current collector (7) and a negative electrode bottom cover (12), and is characterized in that a sealing device is arranged at the bottom of the battery; the sealing device comprises a sealing ring (8) and a toughened film (9); the sealing ring (8) is positioned in the steel shell (2) and sleeved on the negative current collector (7); the toughened film is positioned below the sealing ring (8) and sleeved on the negative current collector (7), and a negative bottom cover (12) is arranged below the toughened film (9); and curing glue (13) is filled in the gaps at the periphery of the negative electrode bottom cover.

2. An alkaline manganese cell according to claim 1, characterized in that: the sealing ring top is equipped with the recess, and the barrier paper imbeds in the sealing ring recess.

3. An alkaline manganese cell according to claim 1, characterized in that: and the toughened film and the sealing ring are bonded together by using curing glue.

4. An alkaline manganese cell according to claim 1, characterized in that: the curing glue is AB glue.

5. An alkaline manganese cell according to claim 1, characterized in that: and a gasket (11) is arranged in the gap between the cathode bottom cover (12) and the steel shell (2).

6. An alkaline manganese cell according to claim 5, characterized in that: the negative electrode bottom cover is in a circular truncated cone shape, and a second clamping groove (14) is formed in the bottom of the negative electrode bottom cover.

7. An alkaline manganese cell according to claim 5, characterized in that: the bottom of the steel shell is provided with a first clamping groove (10).

8. An alkaline manganese cell according to claim 5, characterized in that: the gasket (11) is wave-shaped.