CN217468485U

CN217468485U - Positive electrode ring and alkaline battery using same

Info

Publication number: CN217468485U
Application number: CN202221364775.3U
Authority: CN
Inventors: 刘荣海; 蔡鑫; 薛祥峰; 陈烨琳
Original assignee: Fujian Nanping Nanfu Battery Co Ltd
Current assignee: Fujian Nanping Nanfu Battery Co Ltd
Priority date: 2022-06-02
Filing date: 2022-06-02
Publication date: 2022-09-20
Anticipated expiration: 2032-06-02

Abstract

The utility model discloses an anodal ring, logical groove has been seted up at its middle part, it link up to lead to the groove the upper and lower surface of anodal ring, the shape of cross section who leads to the groove is s shape. Will positive polar ring inlays locates in alkaline battery's steel-clad, and special anodal loop structure multiplicable isolation tube and the area of contact of positive polar ring increase negative pole calamine cream and the area of positive polar ring reaction does benefit to the high-efficient quick reaction between the active material, easily adjusts the content of anodal material and the content of utmost point active material simultaneously, and then improves the capacity of battery, reduce cost makes the reaction more abundant.

Description

Positive electrode ring and alkaline battery using same

Technical Field

The utility model relates to an alkaline battery especially relates to an anodal ring and applied this anodal alkaline battery of ring.

Background

Alkaline battery mainly comprises steel-clad, negative pole current collector subassembly, anodal ring, stand pipe, negative pole etc. the outer wall laminating steel-clad inner wall of anodal ring, the inner wall laminating stand pipe of anodal ring, and the negative pole calamine cream is filled up to the centre of the stand pipe, negative pole current collector subassembly includes negative pole mass flow body, sealing washer and negative pole bottom, the copper needle is inserted and is located in the middle of the stand pipe. The reactions of the positive and negative electrodes of the alkaline manganese primary cell are as follows:

and (3) positive electrode: MnO ₂ +H ₂ O+e ^- =MnOOH+OH ^-

Negative electrode: zn +2e- + OH ^- =[Zn(OH) ₄ ] ^2-

In the reaction process, the anode needs to consume water, namely the cathode needs to convey water; the positive electrode product OH-needs to diffuse to the negative electrode in time, namely the negative electrode simple substance zinc needs to react uniformly and rapidly to generate zinc ions and consume OH-, OH-is not accumulated, so that the reaction can be carried out orderly and rapidly, and the insufficient reaction of the positive electrode active substance and the negative electrode active substance is not caused.

The reaction efficiency is closely related to the contact surface of the positive electrode ring and the isolation tube, and the distance between the negative electrode current collector and the inner wall of the positive electrode ring. And the anodal ring of alkaline battery on the market at present is the ring form, the negative pole mass flow body is the copper straight nail of tin-plating or indium-plating, if the internal diameter through the increase anodal ring increases the contact surface of anodal ring and stand pipe, will lead to the interval increase of the inner wall of negative pole mass flow body and anodal ring, if the diameter of direct increase negative pole mass flow body is in order to promote the contact surface of negative pole mass flow body and negative pole calamine cream, will lead to the packing volume of negative pole calamine cream to reduce. How to coordinate the volume ratio of the anode ring to the cathode zinc paste becomes a problem to be solved urgently in the research and development process of improving the reaction efficiency.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an anodal ring.

Realize the utility model discloses purpose one's technical scheme is: a through groove is formed in the middle of the positive electrode ring, the through groove penetrates through the upper surface and the lower surface of the positive electrode ring, and the cross section of the through groove is s-shaped.

Further, according to the calculation of the apparent density of the positive electrode ring and the apparent density of the negative electrode zinc paste capable of being contained in the through groove, the volume of the positive electrode ring is = 1.6-1.7.

The utility model discloses lead to groove cross sectional shape and compare for the anodal ring structure of the shape of s with traditional ring shape anodal ring structure, under the same condition of the N/P value, the surface area of the inner wall of anodal ring is bigger, simultaneously through control the volume of anodal ring, the volume =1.6 ~ 1.7 that leads to the groove can be with the capacity N of negative pole and anodal capacity P than the N/P value steerable between 1 ~ 1.05, realizes the utilization of optimizing to the positive pole.

A second object of the present invention is to provide an alkaline battery.

Realize the utility model discloses the technical scheme of purpose two is, an alkaline battery, it includes the battery steel casing, the upper end of battery steel casing is equipped with the negative current collector subassembly, coaxial the inlaying is equipped with aforementioned anodal ring in the battery steel casing, anodal ring lead to the inslot endotheca and be equipped with the isolation tube, the isolation tube with the cell wall laminating that leads to the groove, the isolation tube intussuseption is filled with the negative pole calamine cream.

Further, the negative current collector subassembly includes the negative current collector, the negative current collector includes end to end's needle body head end and needle body end, the needle body head end is cylindricly, the needle body end is the slice, the terminal cross section of needle body is the s shape, the needle body end inserts in the isolating tube.

The utility model discloses the alkaline cell that two purposes realized compares with the alkaline cell of conventionality on the market, and the area of contact of special positive polar ring structure multiplicable spacer tube and positive polar ring increases the area of negative pole calamine cream and positive polar ring reaction simultaneously, does benefit to the high-efficient quick reaction between active material to can improve the content of positive polar material, reduce the content of negative pole active material, can be with the steerable between 1 ~ 1.05 of the ratio N/P value of the capacity N of negative pole and anodal capacity P.

Drawings

Fig. 1 is a schematic longitudinal sectional structure view of an alkaline battery according to an embodiment of the present invention;

fig. 2 is a schematic cross-sectional view of the positive electrode ring and the negative electrode current collector according to an embodiment of the present invention;

fig. 3 is a schematic perspective view of the negative electrode current collector of the present invention.

Detailed Description

The following detailed description of the preferred embodiments of the invention refers to the accompanying drawings.

As shown in fig. 1 to 3, an alkaline battery comprises a battery steel shell 1, wherein a negative current collector assembly 2 is assembled at the upper end of the battery steel shell 1, a positive electrode ring 3 is coaxially embedded in the battery steel shell 1, a through groove 31 is formed in the middle of the positive electrode ring 3, the through groove 31 penetrates through the upper surface and the lower surface of the positive electrode ring 3, the cross section of the through groove 31 is s-shaped, according to the apparent density of the positive electrode ring 3 and the apparent density of negative electrode zinc paste capable of being accommodated in the through groove 31, the volume of the positive electrode ring is = 1.6-1.7, an isolation tube 4 is sleeved in the through groove 31 of the positive electrode ring 3, the isolation tube 4 is attached to the groove wall of the through groove 31, and the isolation tube 4 is filled with the negative electrode zinc paste 5.

Negative current collector subassembly 2 includes negative current collector 21, negative current collector 21 includes end to end's needle body head end 211 and needle body end 212, needle body head end 211 is cylindricly, needle body end 212 is the slice, the cross section of needle body end 212 is s shape, needle body end 212 inserts in the spacer 4.

Compared with the traditional circular anode ring structure, the anode ring structure with the s-shaped cross section has the advantages that the surface area of the inner wall of the anode ring is larger under the condition that the N/P value is the same; the surface area of the needle body is increased by the flaky s-shaped needle body tail end structure, so that the contact area between the needle body and the negative electrode active material is increased in use, and finally, the function of high-efficiency current collection is realized.

When the negative current collector uses, earlier adorn the sealing washer suit in the columniform needle body head end outside, interference fit between sealing washer and the needle body head end, then weld the top of needle body head end and negative pole lid again can. The technical personnel in the field can understand, the utility model discloses the negative pole mass flow body use in inserting the space that the barrier paper encloses to close, and the terminal area of needle body is the adaptability adjustment according to the battery model difference.

The above only be the embodiment of the utility model discloses a not consequently restriction the patent scope of the utility model, all utilize the equivalent flow transform that the content of the specification was made, or direct or indirect application is in other relevant technical field, all including on the same reason the utility model discloses a patent protection within range.

Claims

1. The utility model provides a positive polar ring, logical groove has been seted up at its middle part, it link up to lead to the groove the upper and lower surface of positive polar ring, its characterized in that: the cross section of the through groove is s-shaped.

2. The positive electrode ring according to claim 1, wherein: and calculating the apparent density of the positive electrode ring and the apparent density of the negative electrode zinc paste capable of being contained in the through groove, wherein the volume of the positive electrode ring is = 1.6-1.7.

3. An alkaline battery, it includes the battery steel casing, the upper end of battery steel casing is equipped with negative current collector subassembly, its characterized in that: the positive electrode ring of claim 1 is coaxially embedded in the battery steel shell, an isolation pipe is sleeved in the through groove of the positive electrode ring, the isolation pipe is attached to the groove wall of the through groove, and negative electrode zinc paste is filled in the isolation pipe.

4. The alkaline cell of claim 3, wherein: the negative current collector assembly comprises a negative current collector, the negative current collector comprises a needle body head end and a needle body tail end which are connected end to end, the needle body head end is cylindrical, the needle body tail end is flaky, the cross section of the needle body tail end is s-shaped, and the needle body tail end is inserted into the isolation pipe.