CN201196967Y - Non-mercury alkaline button battery with anode conductive film - Google Patents
Non-mercury alkaline button battery with anode conductive film Download PDFInfo
- Publication number
- CN201196967Y CN201196967Y CN200820112947.1U CN200820112947U CN201196967Y CN 201196967 Y CN201196967 Y CN 201196967Y CN 200820112947 U CN200820112947 U CN 200820112947U CN 201196967 Y CN201196967 Y CN 201196967Y
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- mercury
- anodal
- indium
- anode
- negative
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- Expired - Fee Related
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Abstract
The utility model relates to a mercury-free alkaline button cell with an anode conductive membrane. The inner surface of a metal cathode cover is coated with an indium and tin alloy layer, and cathode calamine cream consisting of uniformly mixed zinc powder, metal indium, bismuth and aluminum powder is arranged between the cathode cover and a membrane; and the inner surface of an anode casing is coated with the conductive membrane, and an anode piece consisting of uniformly distributed electrolytic manganese dioxide, conductive carbon and an adhesive is arranged between the conductive membrane and the membrane. The conductive membrane isolates the oxidization action of the manganese dioxide in the anode piece on the anode casing, thereby reducing the resistance and improving the electrical performance, reducing the generation of gas, prolonging the service life of the cell, and improving the storage performance of the cell. As the metal cathode cover is coated with the indium and tin alloy layer to isolate the contact between the cathode calamine cream and the cathode cover and prevent gas expansion, so that no mercury capable of preventing gas expansion is added to reach the mercury-free environmental protection requirement.
Description
Technical field
The utility model relates to a kind of button cell, particularly relates to a kind of mercury-free alkali button battery with anodal conducting film.
Background technology
At present general Alkaline Zinc/manganese button cell, because of anode cover all adopts nickel plating technology, this technology to a certain degree remains coating density defective, produces behind the battery again under the effect of highly basic and storage environment instability, and metal shell is subjected to the oxidation of anodal manganese dioxide, form the nonconducting metal oxide of one deck easily, in the slow process of chemical reaction, produce gas, make the easy leakage of battery, this non-conductive metal oxide also causes battery electrical property to descend simultaneously.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of mercury-free alkali button battery with anodal conducting film.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of mercury-free alkali button battery with anodal conducting film, comprise negative cover, negative zinc cream, positive plate and anodal housing, between negative cover and anodal housing, barrier film is housed, and configuration O-ring seal, make negative cover and anodal housing interference fit, anodal housing closing in seal bead.The inner surface of metal negative cover covers the indium stannum alloy layer, and the negative zinc cream of being made up of uniform zinc powder, indium metal, bismuth and aluminium powder is arranged between negative cover and the barrier film; The inner surface of anodal housing covers one deck conducting film, is provided with positive plate between conducting film and the barrier film.Described positive plate is made up of uniform electrolytic manganese dioxide, conduction carbon element and adhesive.
The beneficial effects of the utility model are:
1) inner surface at anodal housing sprays one deck conducting film, completely cut off the oxidation of the manganese dioxide in the positive plate to metal shell, can not form nonconducting metal oxide and chemical reaction that one deck descends battery electrical property, produce gas, make the easy leakage of battery.Conducting film has completely cut off the oxidation of the manganese dioxide in the positive plate to anodal housing, can reduce resistance and improve electrical property, reduces the generation of gas, extends the life of a cell, and improves the battery storage performance.
Be 3 years the storage period of alkali button battery at present, and button cell of the present utility model was increased to 5 years storage period, reaches " AA " level.
2) in negative zinc cream, add the mercury that elements such as indium metal, bismuth, aluminium replace traditional handicraft at battery, the metal negative cover is coated with one deck indium stannum alloy, completely cut off contacting of battery cathode calamine cream and negative cover, preventing to produce gas expands, so need not to add again the mercury of the expansion that prevents gas in the battery, reach the environmental requirement of no mercury.
Description of drawings
The structural representation of the present utility model that Fig. 1 is.
Fig. 2 is the anodal housing schematic diagram of inner surface spraying conducting film.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Embodiment: a kind of mercury-free alkali button battery with anodal conducting film comprises negative cover 1, negative zinc cream 3, positive plate 6 and anodal housing 8; Between negative cover 1 and anodal housing 8, barrier film 5 is housed, and configuration O-ring seal 4, make negative cover 1 and anodal housing 8 interference fit, anodal housing 8 closing in seal bead.The inner surface indium stannum alloy layer 2 of the negative cover of being made by the stainless steel band punching press 1, the negative zinc cream of being made up of uniform zinc powder, indium metal, bismuth and aluminium powder 3 is arranged between negative cover 1 and the barrier film 5.Add the mercury of elements replacement traditional handicrafts such as indium metal, bismuth, aluminium in negative zinc cream 3, indium stannum alloy layer 2 has completely cut off negative zinc cream 3 and has contacted with the direct of negative cover 1, prevents to produce gas and expands; So need not to add again the mercury of the expansion that prevents gas in the battery, reach the environmental requirement of no mercury.Inner surface spraying one deck conducting film 7 of the anodal housing 8 of stainless steel is provided with positive plate 6 between conducting film 7 and the barrier film 5; Described positive plate 6 is made up of uniform electrolytic manganese dioxide, conduction carbon element and adhesive.Conducting film 7 overlays on the inner surface of anodal housing 8, has completely cut off the oxidation of the manganese dioxide in the positive plate to anodal housing 8, can reduce resistance and improve electrical property, reduces the generation of gas, extends the life of a cell, and improves the battery storage performance.
625A button cell of the present utility model is carried out discharge test, and the result is as follows:
Table 2
Test result shows: the capacitance high temperature ageing experiment rate of descent 13.5% of 625A button cell of the present utility model.60 ℃ of 7 days (being equivalent to 1 year); Battery performance is annual to descend 3% relatively, meets the IEC standard, accomplishes the end in view.
Claims (2)
1. mercury-free alkali button battery with anodal conducting film, comprise negative cover, negative zinc cream, positive plate and anodal housing, between negative cover and anodal housing, barrier film is housed, and configuration O-ring seal, make negative cover and anodal housing interference fit, anodal housing closing in seal bead, it is characterized in that: the inner surface of metal negative cover (1) covers indium stannum alloy layer (2), and the negative zinc cream of being made up of equally distributed zinc powder and indium metal, bismuth and aluminium powder (3) is arranged between negative cover (1) and the barrier film (5); Anodal housing (8) inner surface covers one deck conducting film (7), is provided with positive plate (6) between conducting film (7) and the barrier film (5).
2. a kind of mercury-free alkali button battery with anodal conducting film according to claim 1 is characterized in that: described positive plate (6) is made up of uniform electrolytic manganese dioxide, conduction carbon element and adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820112947.1U CN201196967Y (en) | 2008-05-29 | 2008-05-29 | Non-mercury alkaline button battery with anode conductive film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820112947.1U CN201196967Y (en) | 2008-05-29 | 2008-05-29 | Non-mercury alkaline button battery with anode conductive film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201196967Y true CN201196967Y (en) | 2009-02-18 |
Family
ID=40416597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200820112947.1U Expired - Fee Related CN201196967Y (en) | 2008-05-29 | 2008-05-29 | Non-mercury alkaline button battery with anode conductive film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201196967Y (en) |
-
2008
- 2008-05-29 CN CN200820112947.1U patent/CN201196967Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090218 Termination date: 20110529 |