CN202282418U

CN202282418U - High-power alkaline zinc-manganese battery

Info

Publication number: CN202282418U
Application number: CN 201120417787
Authority: CN
Inventors: 韩维维; 卢财鑫; 吴胜彪
Original assignee: Yuyao Johnson Eletek Co ltd
Current assignee: Yuyao Johnson Eletek Co ltd
Priority date: 2011-10-28
Filing date: 2011-10-28
Publication date: 2012-06-20
Anticipated expiration: 2021-10-28

Abstract

The utility model discloses an alkaline zinc-manganese dioxide battery of high power, including anodal, negative pole, diaphragm pipe, negative current collector and box hat, inside diaphragm pipe and the negative current collector of being equipped with of box hat, the negative current collector is established in the top of diaphragm pipe, the inside negative pole that is equipped with of diaphragm pipe, be equipped with anodal between diaphragm pipe and the box hat, anodal surface is equipped with the protective layer that contains the additive. The utility model discloses an contain the additive in anodal, improved battery high power and put the branch performance to can satisfy the operation requirement of electric utensil for the high power betterly, have the effect of passing through.

Description

High-power alkaline zinc-manganese battery

Technical Field

The utility model relates to an alkaline zinc-manganese cell, concretely relates to alkaline zinc-manganese cell of high power.

Background

Alkaline zinc-manganese batteries, the most current ones with development potential, have gained widespread development in china since the 90 s, being developed at 30% of the rate each year, and are widely used in consumer electronics products: electronic products such as electric toys, remote controllers, CD players, game machines, and players. With the continuous improvement of the life quality of people, the requirements of people on the quality of batteries are higher and higher, and particularly the requirements on the high-power discharge performance of the batteries are higher. Generally, there are two methods for improving the high-power discharge performance of the battery: one is to increase the amount of active material inside the battery by increasing the internal capacity of the battery, while the external dimensions of the battery are fixed, thereby limiting the ability to increase the active material within the battery. And secondly, additives are used in the positive electrode and the negative electrode of the battery, so that the working utilization rate of active materials in the battery is improved, and the purpose of improving the high-power discharge performance is achieved. Chinese patent CN1333930A, published in 2002, 1, 30, discloses a method for improving the working performance of a battery, in which barium sulfate, barium hydroxide and a mixture thereof are added to the positive electrode of an alkaline manganese battery to prolong the working time of the battery. However, the inventor finds that the effect of adding barium hydroxide is good, but the barium hydroxide is prepared into a solution mode, added into the positive electrode and dried, and the adding mode has high operability requirement and the quality of the production process is not easy to control.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects existing in the prior art, the utility model provides an alkaline zinc-manganese battery with high power, which has high power discharge performance.

In order to realize the purpose, the technical scheme of the utility model is as follows:

the utility model provides an alkaline zinc-manganese dioxide battery of high power, includes anodal, negative pole, diaphragm pipe, the mass flow body of negative pole and box hat, inside diaphragm pipe and the mass flow body of negative pole of being equipped with of box hat, the mass flow body of negative pole is established in the top of diaphragm pipe, the inside negative pole that is equipped with of diaphragm pipe, be equipped with anodal between diaphragm pipe and the box hat, anodal surface is equipped with the protective layer that contains the additive.

The positive electrode also contains an additive inside.

And the negative current collector is movably connected with the steel shell.

The additive is a composite mixture of powdered barium sulfate and barium hydroxide, and the alkaline zinc-manganese battery prepared by mixing the powdered barium sulfate and the barium hydroxide mechanically has high power discharge performance.

The beneficial effects of the utility model are that, through containing the additive in the positive pole, improved the battery high power and put the branch performance to can satisfy the operation requirement of high power electric appliance betterly, have the effect of passing through.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural diagram of the negative electrode of FIG. 1;

FIG. 3 is a schematic diagram of the structure of the diaphragm tube of FIG. 1;

fig. 4 is a schematic structural view of the negative electrode current collector of fig. 1;

fig. 5 is a schematic structural view of the steel shell in fig. 1.

The specific implementation mode is as follows:

in order to make the technical means, the creation features and the achievement objects of the present invention easy to understand, the present invention will be further explained with reference to the specific embodiments.

Referring to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, the alkaline zinc-manganese battery of high power includes anodal 1, negative pole 2, diaphragm pipe 3, negative current collector 4 and steel casing 5, inside diaphragm pipe 3 and the negative current collector 4 of being equipped with of steel casing 5, negative current collector 4 establishes in the top of diaphragm pipe 3, inside negative pole 2 that is equipped with of diaphragm pipe 3, be equipped with anodal 1 between diaphragm pipe 3 and the steel casing 5, the surface of anodal 1 is equipped with protective layer 11 that contains the additive.

Wherein the positive electrode 1 also contains an additive.

Wherein, the negative current collector 4 is movably connected with the steel shell 5.

The additive is a composite mixture of powdered barium sulfate and barium hydroxide, and the alkaline zinc-manganese dioxide battery prepared by mixing the powdered barium sulfate and the barium hydroxide through a powder mixing machine has good high-power discharge performance, the 3.9 omega continuous discharge performance can be improved by 10-15%, the 1000mA continuous discharge performance can be improved by 15-25%, and the use requirements of high-power electric appliances can be better met.

The additive is prepared from 0.5-7.0% of barium sulfate and 0.5-1.8% of barium hydroxide, is applied to the production of the alkaline zinc-manganese battery, and achieves the purpose of improving the high-power discharge performance of the alkaline zinc-manganese battery.

The addition amount of the barium sulfate accounts for 0.5-7% of the weight of the positive electrode, and the addition amount of the barium hydroxide accounts for 0.5-1.8% of the weight of the positive electrode. The additive of powdery barium sulfate and barium hydroxide is directly and uniformly stirred and mixed with other anode active materials according to a certain proportion, wherein the active materials comprise electrolytic manganese dioxide, graphite powder and calcium stearate.

2.0 percent of barium sulfate and 0.5 percent of barium hydroxide are added into the anode of the alkaline zinc-manganese battery, and are directly and uniformly stirred and mixed with other anode active materials according to a certain proportion, and the other alkaline zinc-manganese battery is manufactured according to the prior art production process of the alkaline zinc-manganese battery, and the test results are as follows:

	3.9Ω24h/d 0.9v	1000mA 10s/m 1h/d 0.9v	1000mA 24h/d 1.0v
				conventional battery	340min	280 times (B)	25min
Example cell	380min	350 times (times)	30min

The results show that in the positive electrode of the alkaline zinc-manganese battery, the additive is very beneficial to improving the high-power discharge performance of the battery.

The foregoing shows and describes the basic principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, and all such changes and modifications fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The high-power alkaline zinc-manganese battery comprises a positive electrode, a negative electrode, a diaphragm tube, a negative current collector and a steel shell, and is characterized in that: the improved steel shell structure is characterized in that a diaphragm pipe and a negative current collector are arranged inside the steel shell, the negative current collector is arranged above the diaphragm pipe, a negative electrode is arranged inside the diaphragm pipe, a positive electrode is arranged between the diaphragm pipe and the steel shell, and a protective layer containing an additive is arranged on the outer surface of the positive electrode.

2. The high power alkaline zinc-manganese dioxide cell of claim 1, wherein: the positive electrode also contains an additive inside.

3. The high power alkaline zinc-manganese dioxide cell of claim 1, further comprising: and the negative current collector is movably connected with the steel shell.