CN2365762Y

CN2365762Y - Inner pole type zinc-manganese cell

Info

Publication number: CN2365762Y
Application number: CN 98251761
Authority: CN
Inventors: 曾红斌; 张维生
Original assignee: Chongqing Hongyan Environmental Protection Battery Co ltd
Current assignee: Chongqing Hongyan Environmental Protection Battery Co ltd
Priority date: 1998-12-31
Filing date: 1998-12-31
Publication date: 2000-02-23
Anticipated expiration: 2008-12-31

Abstract

The utility model relates to an internal electrode type zinc-manganese battery, which comprises a shell 7, a top cover 2, a copper cap 1, a carbon rod 10, a cathode electric core body 16, an anode zinc cylinder 9 wrapped with an isolation paper layer 8 and positioned in the cathode electric core body, a sealing layer and a metal bottom cover 15, and is characterized in that the anode zinc cylinder wrapped with the isolation paper layer is provided with a current collection bottom 11, the current collection bottom is provided with current collection pins 14, the current collection pins are penetrated out from a bottom hole of the shell and are connected with the metal bottom cover 15 in a pressing fit way. The utility model discloses because the quality problems that traditional zinc-manganese dioxide battery exists can be overcome to the structure. Because the zinc anode is not used as a container, the consumption of each battery can be reduced by more than 50 percent, the service life of the battery is prolonged, and the production efficiency is improved in the production process.

Description

Inner pole type zinc-manganese cell

The utility model relates to a novel battery of structure, especially an interior utmost point formula zinc-manganese cell.

The prior art has appeared to overcome the common quality problems of the traditional zinc-manganese battery, realize the reduction of the consumption of the zinc material of the zinc-manganese battery and the mercury-free of the battery, reduce the cost and improve the cost performance of the battery, for example, the inner-pole zinc-manganese battery with the patent number of 96233628.9 has the structure that an anode zinc sheet wrapped with a piece of isolation paper is rolled into a cylindrical cathode cell body, and is connected with a metal bottom cover through an insulated metal wire for anode drainage. The internal pole type battery has the defect of low production efficiency due to the fact that the metal lead needs to be manually welded for conducting anode drainage, and is not beneficial to production of an automatic production line.

An object of the utility model is to provide a need not carry out manual welding in production, on the basis that keeps current interior utmost point formula zinc-manganese cell advantage, can improve work efficiency's interior utmost point formula zinc-manganese cell of novel structure.

The above objects of the present invention are achieved by improving the technical solution, that is, an inner-electrode type zn-mn battery, comprising a casing, a top cap, a copper cap, a carbon rod, a cathode electrical core, an anode zinc cylinder wrapped with an isolation paper layer and located in the cathode electrical core, a sealing layer and a metal bottom cap; the method is characterized in that: the anode zinc cylinder wrapped with the isolation paper layer is provided with a current collecting bottom, and the current collecting bottom is provided with current collecting feet which penetrate through a bottom hole of the shell and are connected with the metal bottom cover in a pressing way.

The above structure of the present invention can be further explained by the embodiments shown in the drawings.

The attached drawing is the structure schematic diagram of the utility model.

Referring to the drawings: the inner-pole zinc-manganese dioxide battery comprises a shell 7, a top cover 2, a copper cap 1, a carbon rod 10, a cathode electric core body 16, an anode zinc cylinder 9 wrapped with an isolation paper layer 8 and positioned in the cathode electric core body, a sealing layer and a metal bottom cover 15; the method is characterized in that: the anode zinc can wrapped with the isolation paper layer is provided with a current collecting bottom 11 which is provided with a current collecting pin 14; and penetrates out of the bottom hole of the shell and is connected with the metal bottom cover 15 in a pressing mode. The sealing layer comprises: sealing agent layer 3, plastic plug 4, air layer 5 and paper layer 6. In the embodiment, the zinc cylinder 9 is embedded in a circular positioning groove at the bottom in the shell, and a paper bottom bowl 12 is arranged below the current collecting bottom 11; the bottom hole of the shell is provided with a sealing ring 13. The shell 7 of the utility model can adopt a paper tube, a plastic tube or other hydrophobic materials which are subjected to hydrophobic treatment; cathode electrode core body 16 employs manganese dioxide. The zinc can 9 as the anode has convection holes or convection stripe holes.

The manufacturing method of the structure of the utility model is as follows: the plastic cylinder or the paper cylinder 7 is made into a container cylinder after hydrophobic treatment, and is filled into a cylindrical anode cylinder 9 wrapped with the isolation paper 8 to be positioned in a circular positioning groove at the bottom in the shell, and a current collecting pin 14 of the cylindrical anode cylinder penetrates out of a bottom hole of the shell, which is provided with a sealing ring at the bottom; then, filling a preformed cathode manganese dioxide core body 16, then injecting cathode inner core powder, inserting a carbon rod 10 for cathode drainage, filling a sealing layer, matching a copper cap and a metal cover to be used as a cathode extreme end, and pressing and connecting a metal bottom cover and a drainage pin at the bottom to form an anode extreme end; finally, a thermal shrinkage film or a metal-like thermal shrinkage film is adopted as a decorative layer of the product.

The structure of the utility model can overcome the quality problems of the traditional zinc-manganese battery, such as 'zinc tube bottom penetration', 'ballooning and bulging', 'liquid leakage' and 'storage crystallization'. Because the zinc anode is not used as a container, the consumption of each battery can be reduced by more than 50 percent; because of adopting the inner pole type structure, the anode zinc cylinder is provided with convection holes and carries out electrochemical reaction on two sides, the current collection amount is increased, the service time of the battery is prolonged, and the utilization rate of zinc reaches more than 90 percent; the cylinder body can be formed by one-time stamping, the consistency of the geometric dimension can be ensured, the bottom is sealed more perfectly, and the mechanical production degree of the product is easy to realize. Due to the special structure of the cylindrical body, the production efficiency is improved and the rejection rate is reduced because the lead wire does not need to be welded manually in the production process of the battery. And lays a foundation for realizing full automation, mercury-free and cadmium-free of products.

Claims

1. An inner-pole zinc-manganese battery comprises a shell (7), a top cover (2), a copper cap (1), a carbon rod (10), a cathode core body (16), an anode zinc cylinder (9) wrapped with an isolation paper layer (8) and positioned in the cathode core body, a sealing layer and a metal bottom cover (15); the method is characterized in that: the anode zinc cylinder (9) wrapped with the isolation paper layer is provided with a current collecting bottom (11), the current collecting bottom is provided with current collecting feet (14), penetrates out of a bottom hole of the shell and is connected with the metal bottom cover (15) in a pressing mode.

2. The inner-pole zinc-manganese dioxide cell of claim 1, wherein: the seal layer includes: a sealing agent layer (3), a plastic plug (4), an air layer (5) and a paper layer (6).

3. The inner-pole zinc-manganese dioxide cell of claim 1, wherein: the shell (7) can adopt a paper tube or a plastic tube which is subjected to hydrophobic treatment; manganese dioxide is used as the cathode core (16).

4. The inner-pole zinc-manganese dioxide cell of claim 1, wherein: the zinc cylinder (9) as the anode is provided with convection holes or convection stripe holes.

5. The inner-pole zinc-manganese dioxide cell of claim 1, wherein: the zinc cylinder (9) is embedded in a circular positioning groove at the bottom in the shell, and a paper-bottom bowl (12) is arranged at the flow-collecting bottom (11) of the zinc cylinder; the bottom hole of the shell is provided with a sealing ring (13).