CN200941409Y - Alkali non-mercury button cell - Google Patents

Abstract

The utility model which discloses a mercury-free alkaline button battery comprises a U-shaped anode cup, a mercury-free zinc, a cathode shell, a cathode powder cake, a seal ring and a diaphragm. The cathode powder cake is at the bottom of the cathode shell, and the diaphragm is above the cathode powder cake, and the U-shaped anode cup filled with the mercury-free zinc is reversed above the diaphragm, and the seal ring is set between the U-shaped edges of the U-shaped anode cup and the cathode shell. The internal surface of the U-shaped anode cup has an electroplated nickel coating which has an electroplated ormolu coating, the thickness of which is 0.35MuM to 0.45MuM. The utility model has the following advantages and effect comparing to the prior art. The battery can inhibit the production of hydrogen and satisfy the mercury-free need of protecting environment with the reject rate less than one percent; avoid the leakage effectively; and change the art of composite plate pressed by three plates with low production cost and high economic benefit.

Description

A kind of alkaline non-mercury button battery

Technical field

The utility model relates to a kind of alkaline non-mercury button battery.

Background technology

At present, button cell anode cup inner surface is mainly electroplated the ambrose alloy layer and is all-sealed structure, adds mercury to suppress that calamine cream contact with the anode cup endosexine or other raw material generation hydrogen and the battery phenomenon that swells takes place when contacting in its anode calamine cream.Yet the existence meeting of mercury pollutes environment.Therefore, pursue the raising of nuisanceless social enviroment protection consciousness day by day and adapt to the mercuryless environmental protection demand of social field of batteries, be badly in need of producing a kind of not mercurous alkaline button cell in order to satisfy people.

Summary of the invention

The purpose of this utility model is to provide a kind of alkaline non-mercury button battery, and it is a kind of not mercurous Alkaline Zinc/manganese dioxide or zinc/manganese dioxide, silver oxide button battery.

The technical solution of the utility model is as follows: a kind of alkaline non-mercury button battery, form by U type anode cup, no mercury calamine cream, cathode shell, negative electrode muffin, sealing ring and barrier film, the negative electrode muffin is at the cathode shell inner bottom part, barrier film is arranged on above the negative electrode muffin, the anode cup interior no mercury calamine cream of filling in U type limit also tips upside down on the barrier film, between the U type limit of U type anode cup and the cathode shell sealing ring is installed; The endosexine of described U type anode cup is electroplate with a nickel dam, and is electroplate with one bronze medal on this nickel dam-zinc-ashbury metal layer, and the thickness of this copper-zinc-ashbury metal layer is 0.35 μ M～0.45 μ M.

The copper content of above-mentioned copper-zinc-ashbury metal layer is 30～80%, and zinc content is 8～12.5%, and all the other are tin.

Above-mentioned sealing ring inboard scribbles glue layer.

The utility model compared with prior art has the following advantages and effect: 1, the utility model is electroplate with layer of copper-zinc-ashbury metal at the nickel face again and combines with no mercury calamine cream in the nickel plating of anode cup endosexine, U type limit elder generation.Can effectively suppress the generation of hydrogen, reach the environmental requirement of no mercury, and percent defective be less than 1%; 2, between the U type limit of U type of the present utility model limit anode cup and the cathode shell sealing ring is installed, and the sealing ring inboard scribbles glue layer, can effectively prevent battery leakage.3, the utility model changes the technology of original three combined pressure system composite plates with electro-plating method in U type anode cup endosexine, has reduced cost, increases economic efficiency.

Description of drawings

Fig. 1 is the broken section structural representation of the utility model alkaline non-mercury button battery;

Fig. 2 is the U type limit anode cup structural representation of electro-coppering-zinc-ashbury metal;

Fig. 3 is the structural representation after the sealing ring inboard scribbles behind the glue layer and the U type limit anode cup of copper facing-zinc-ashbury metal has made up;

Among the figure, 1, U type limit anode cup; 2, no mercury calamine cream; 3, sealing ring; 4, cathode shell; 5, barrier film; 6, negative electrode muffin; 7, glue layer; 8, copper-zinc-ashbury metal.

Below in conjunction with accompanying drawing the utility model is further described:

Embodiment

As shown in Figures 1 to 3, the utility model is made up of U type anode cup 1, no mercury calamine cream 2, cathode shell 4, negative electrode muffin 6, sealing ring 3 and barrier film 5.The endosexine of U type anode cup is electroplate with a nickel dam, and is electroplate with one bronze medal on this nickel dam-zinc-ashbury metal layer 8.Sealing ring 3 inboards scribble glue layer 7, sealing ring inboard and the U type limit seal combination that is coated with the U type limit anode cup 1 of copper-zinc-ashbury metal 8, in U type limit anode cup 1, add no mercury calamine cream 2 then, negative electrode muffin 6 is put into cathode shell 4, on negative electrode muffin 6, add barrier film 5 again, to add the U type limit anode cup 1 that has or not mercury calamine cream 2 at last and be combined on 5 in the barrier film and seal, can make alkaline non-mercury button battery of the present utility model.

Described negative electrode muffin 6 is mixtures of manganese dioxide or manganese dioxide and titanium dioxide silver.

Production technology according to conventional anode cup, stamp out U type limit anode cup 1 with hydraulic cutting presser, and then with the barrel plating method in the nickel plating of the endosexine of U type limit anode cup elder generation, electroplate last layer copper-zinc-ashbury metal 8 at nickel surface again, the thickness of this copper-zinc-ashbury metal layer is 0.35 μ M～0.45 μ M, the copper content of copper-zinc-ashbury metal layer is 30～80%, zinc content 8～12.5%, and all the other are tin.

The technology of anode cup electroplating processes: pre-treatment-anode cup oil removing-mistake pure water-fried acid-nickel plating-copper facing-zinc-ashbury metal.Wherein: the main component of electroplate liquid is copper 14～18g/l, tin 30～60g/l, potassium hydroxide 15～16g/l and metallic zinc 0.3～0.6g/l; Electroplating voltage 9～10V, electric current 600～700mA; 40～50 ℃ of coolant-temperature gages, electroplating time 90～100 minutes, pH value 0.8～1.5,18～20 ℃ of Baumes.

According to the button cell conventional production process, scribble glue layer 7 in sealing ring 3 inboards, with sealing ring 3 inboards and the U type limit seal combination that is coated with the U type limit anode cup 1 of copper-zinc-ashbury metal 8, can improve the sealing of battery so effectively, prevent battery leakage.

Because the utility model is in the nickel plating of anode cup 1 endosexine, U type limit elder generation, electro-coppering-zinc-ashbury metal 8 on the nickel face again, generation gas in the time of can effectively suppressing not have mercury calamine cream 2 and contact with anode cup 1 endosexine, U type limit.Therefore, the utility model can suppress and prevent that it from producing gas and dilatancy, has reached the environmental requirement of mercury-free alkaline button cell.

Claims (2)

1, a kind of alkaline non-mercury button battery, form by U type anode cup, no mercury calamine cream, cathode shell, negative electrode muffin, sealing ring and barrier film, the negative electrode muffin is at the cathode shell inner bottom part, barrier film is arranged on above the negative electrode muffin, the anode cup interior no mercury calamine cream of filling in U type limit also tips upside down on the barrier film, between the U type limit of U type anode cup and the cathode shell sealing ring is installed, it is characterized in that: a nickel dam is electroplated in the endosexine of described U type anode cup, and be electroplate with one bronze medal-zinc-ashbury metal layer on this nickel dam, and be 0.35 μ M～0.45 μ M at the thickness of this copper-zinc-ashbury metal layer.

2, a kind of alkaline non-mercury button battery according to claim 1 is characterized in that: described sealing ring inboard scribbles glue layer.

Images