CN2671134Y

CN2671134Y - Alkali non-mercury button battery

Info

Publication number: CN2671134Y
Application number: CN 200420045131
Authority: CN
Inventors: 许奕坛
Original assignee: Sihui Yongli Hardware Battery Co ltd
Current assignee: Sihui Yongli Hardware Battery Co ltd
Priority date: 2004-04-26
Filing date: 2004-04-26
Publication date: 2005-01-12
Anticipated expiration: 2014-04-26

Abstract

The utility model relates to an alkali non-mercury button battery, compising an anode cup with U-shaped edge, calamine cream, a cathode shell, a cathode powder cake, a sealing ring and a diaphragm. The cathode powder cake is arranged on the bottom of the cathode shell. The diaphragm is arranged on the cathode powder cake. The anode cup with U-shaped edge is filled with calamine cream and is inversely fastened on the diaphragm. The sealing ring is arranged between the U-shaped edge of the anode cup and the cathode shell. The inner side of the anode cup with U-shaped edge is coated with a deck of tannum-cobalt alloy in order to prevent the gas generated when the calamine cream contacts with the inner side of the anode cup with U-shaped edge. The inner side of the sealing ring is coated with glue layer. The glue layer hermetically combines the inner side of the sealing ring and the U-shaped edge of the anode cup which is coated with tannum-cobalt alloy. That efficiently improves the hermeticity of the battery and prevents the battery leakage. The utility model does not add hydrargyrum to prevent the expansion deformation caused by the gas coming from the model. The utility model achieves the environment protecting request of no hydrargyrum and can be applied to the electronic equipmentssuch as wrist watches, calculators and electronic toys.

Description

A kind of alkaline non-mercury button battery

Technical field

The utility model belongs to field of batteries, relates in particular to a kind of alkaline non-mercury button battery.

Background technology

Current button cell is an all-sealed structure, adds mercury in its anode zinc raw material, prevents that calamine cream from contacting with its anode cup inwall or other raw material when contacting, and can not produce gas and swells.

Raising along with environmental requirement and people's consciousness, society tends to the demand of mercuryless battery gradually, " LR03 " reaches " LR6 " has air chamber and explosionproof hole because of its structural design, successfully carried out mercuryless, and button cell is because of no air chamber, so still in anode active material, add the generation that mercury prevents gas, so just environment caused pollution.Therefore, required in order to adapt to social enviroment protection, be badly in need of a kind of not mercurous alkaline button cell.

The utility model content

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.

Alkaline non-mercury button battery of the present utility model mainly comprises U type limit anode cup, calamine cream, cathode shell, negative electrode muffin, sealing ring and barrier film, described negative electrode muffin is at the cathode shell inner bottom part, one barrier film is arranged above the negative electrode muffin, and anode cup interior filling calamine cream in U type limit also tips upside down on the barrier film; Between the U type limit of U type limit anode cup and the cathode shell sealing ring is installed, the inboard of described U type limit anode cup is coated with one deck tin-cobalt alloy, produces gas when preventing in calamine cream and the U type limit anode cup side contacts.

Described sealing ring inboard scribbles glue layer.

The utility model compared with prior art has following advantage and effect:

(1) the utility model plates one deck tin-cobalt alloy in anode cup inboard, U type limit, produce gas in the time of can preventing in calamine cream and the U type limit anode cup side contacts, therefore, the utility model need not to add mercury and prevents that it from producing gas and dilatancy has reached the environmental requirement of no mercury;

(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.

Description of drawings

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

Fig. 2 is the U type limit anode cup structural representation of zinc-plated cobalt alloy;

Fig. 3 is the structural representation after the sealing ring inboard scribbles behind the glue layer U type limit anode cup combination with zinc-plated cobalt alloy.

1-U type limit anode cup 2-calamine cream 3-sealing ring 4-cathode shell 5-barrier film 6-negative electrode muffin 7-glue layer 8-tin-cobalt alloy among the figure

Embodiment

Below in conjunction with accompanying drawing the utility model is done to describe further.

Shown in Fig. 1,2 and 3, the inboard of U type limit anode cup 1 is coated with one deck tin-cobalt alloy 8, sealing ring 3 inboards scribble glue layer 7, sealing ring 3 inboards and the U type limit seal combination that is coated with the U type limit anode cup 1 of tin-cobalt alloy 8, in U type limit anode cup 1, add calamine cream 2 then, negative electrode muffin 6 is put into cathode shell 4, on negative electrode muffin 6, add barrier film 5 again, the U type limit anode cup 1 that will be added with calamine cream 2 at last is combined on 5 in the barrier film and seals, and 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.

According to the production technology of conventional anode cup, stamp out U type limit anode cup 1 with hydraulic cutting presser, and then electroplate last layer tin-cobalt alloy 8 with the barrel plating method.

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 tin-cobalt alloy 8, can improve the sealing of battery so effectively, prevent battery leakage.

Because the utility model plates one deck tin-cobalt alloy 8 in anode cup 1 inboard, U type limit, produce gas in the time of can preventing in calamine cream 2 and the U type limit anode cup 1 side contacts, therefore, the utility model need not to add mercury and prevents that it from producing gas and dilatancy has reached the environmental requirement of no mercury.

The utility model can be applicable in the electronic equipments such as wrist-watch, calculator, electronic toy.

Claims

1. an alkaline non-mercury button battery is characterized in that mainly comprising U type limit anode cup, calamine cream, cathode shell, negative electrode muffin, sealing ring and barrier film, and described negative electrode muffin has a barrier film at the cathode shell inner bottom part above the negative electrode muffin; Anode cup interior filling calamine cream in U type limit also tips upside down on the barrier film, between the U type limit of described U type limit anode cup and the cathode shell sealing ring is installed, and the inboard of U type limit anode cup is coated with one deck tin-cobalt alloy.

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