CN201466108U - Mercury and lead-free button battery - Google Patents
Mercury and lead-free button battery Download PDFInfo
- Publication number
- CN201466108U CN201466108U CN 200920061600 CN200920061600U CN201466108U CN 201466108 U CN201466108 U CN 201466108U CN 200920061600 CN200920061600 CN 200920061600 CN 200920061600 U CN200920061600 U CN 200920061600U CN 201466108 U CN201466108 U CN 201466108U
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- China
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- mercury
- cover
- anode
- battery
- cathode
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Y02E60/12—
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- Battery Electrode And Active Subsutance (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model provides a mercury and lead-free button battery capable of effectively avoiding flatulence and liquid leakage, which comprises a cathode cover, cathode zinc gel, a sealing ring, a diaphragm, an anode cake and an anode casing, wherein the inner surface and the outer surface of the cathode cover are uniformly plated with at least a white copper-tin layer respectively, so that the hydrogen evolution overpotential of zinc powder is reduced, and the air generation of the mercury-free zinc powder in the battery is effectively avoided, thereby ensuring safety and environment protection and prolonging the storage and service life of the battery; the sealing ring is mounted between the cathode cover and the anode casing; the anode cake is arranged at the bottom of the anode casing; the diaphragm is arranged above the anode casing; the cathode zinc gel is arranged between the cathode cover and the diaphragm; and the thickness of the white copper-tin layer is 1 to 5 micron. The utility model has the advantages of reasonable design, simple structure, strong practicability, high technical integration, safety and environment protection and really achieves the mercury and lead-free button battery.
Description
Technical field
The utility model relates to chemical power source and battery manufacturing technology field, relates in particular to a kind of unleaded environmental protection button cell of mercury that do not have.
Background technology
Battery is with its portability, practicality and be subjected to people's welcome deeply, but because inside battery contains " zinc " this raw material, so must add mercury element, in order to prevent that " zinc " is when contacting with electrolyte, produce gas and expand, and common in the market zinc---manganese cell mainly contains column type battery (as " AA " type and " AAA " type), square battery and button cell.
Along with the continuous enhancing of people's environmental consciousness, on the market gradually trend adopt mercurous or not plumbous battery direction to develop, column type battery and square battery be because the bigger advantage of volume, has that the space holds gas and the expansion that produces is not difficult to realize technically; But for button cell, because (volume is small and exquisite for the particularity of its structure, no air chamber, no explosionproof hole), in battery, can not there be vacant position to hold the expansion that causes because of gas again, the realization difficulty of technology is big, so button cell still needs to add mercury now, to avoid causing the torsional deformation and the blast of cell shapes because of gas expands, but mercury and lead are not only influential to environment, and also exist harmfulness for human body, cause the generation of human body various diseases easily, therefore, be badly in need of the button cell of a kind of environmental protection, safety.
And the appearance of mercury-free battery is arranged also in the market, but the negative cover of the battery of this type is indium plating or indium stannum alloy, the cost height, and the easy oxidized variable color of the indium of negative cover electroplating surface or indium stannum alloy, so after battery completes, also must remove indium or indium stannum alloy on the negative cover, not only operation is loaded down with trivial details, and easily causes environmental pollution.
Summary of the invention
For overcoming the existing in prior technology deficiency, the utility model proposes that a kind of rational in infrastructure, operation is simple, the unleaded button cell of no mercury of safety and environmental protection.
For achieving the above object, the utility model is achieved by the following technical programs: the unleaded button cell of a kind of no mercury, comprise negative cover, negative zinc cream, sealing ring, barrier film, anodal cake and anode cover, it is 1 that the inside and outside surface of its negative cover is coated with at least one layer thickness---5 microns copper-nickel alloy tin layer, between negative cover and the anode cover sealing ring is installed, anodal cake is installed in the bottom of anode cover, and anodal cake top is provided with barrier film, is equiped with negative zinc cream between negative cover and the barrier film.Its copper-nickel alloy tin is a kind of signal bronze, and copper-nickel alloy tin layer is covered in the inside and outside surface of whole negative cover.
Compared with prior art, the utlity model has following technical advantage:
1: rational in infrastructure, member is simple, and chemical property is stable, good weatherability, and its finished product battery need not be removed the electrodeposited coating of capping, cost and cheap;
2: by all plating copper-nickel alloy tin layer, reduced the overpotential of hydrogen evolution of zinc powder, effectively prevented the aerogenesis phenomenon of mercury less zinc powder in battery, safer environmental protection, the storage and the useful life of prolongation battery on the inside and outside surface of negative cover;
3: manufacturing process is simple, and is with low cost, the yields height, and environmentally safe does not have harm to human body, and range of application and promotional value are high.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is an internal structure schematic diagram of the present utility model.
Among the figure: 1, negative cover, 2, anode cover, 3, negative zinc cream, 4, sealing ring, 5, barrier film, 6, anodal cake, 7, copper-nickel alloy tin layer.
Embodiment
With reference to Fig. 1 and shown in Figure 2, structure of the present utility model is by negative cover 1, anode cover 2, negative zinc cream 3, sealing ring 4, barrier film 5 and anodal cake 6 are formed, in negative cover 1, it is 2 microns copper-nickel alloy tin layer 7 that outer surface all is coated with a layer thickness, be copper-nickel alloy tin layer be covered in whole negative cover in, on the outer surface, between negative cover 1 and anode cover 2, sealing ring 4 is installed also, anodal cake 6 is installed in the bottom of anode cover 2, anodal cake 6 tops are provided with barrier film 5, negative zinc cream 3 is installed between negative cover 1 and the barrier film 5, accomplish really that structurally its porosity is zero, objectionable impurities content is low, and chemical property is stable, good weatherability.
The utility model also can add the compound of indium and/or bismuth in negative zinc cream 3, in order to replace the mercury in traditional button cell negative pole zinc powder, strengthened pressing down the hydrogen effect, thereby realized the mercuryless of button cell, and its market prospects are wide.
Above content is in conjunction with further describing that concrete main execution mode is done, and can not assert that concrete enforcement of the present utility model is confined to these explanations.Those skilled in the art are not breaking away under the prerequisite of the utility model design, some other technology of done accurately, the deduction or replace that beautify, all should belong to protection range of the present utility model.
Claims (2)
1. unleaded button cell of no mercury, comprise negative cover, negative zinc cream, sealing ring, barrier film, anodal cake and anode cover, it is characterized in that: the inside and outside surface of described negative cover is coated with the copper-nickel alloy tin layer of one deck at least respectively, between negative cover and the anode cover sealing ring is installed, anodal cake is installed in the bottom of anode cover, anodal cake top is provided with barrier film, and negative zinc cream is installed between negative cover and the barrier film.
2. the unleaded button cell of a kind of no mercury according to claim 1, it is characterized in that: the thickness of described copper-nickel alloy tin layer is 1---5 microns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920061600 CN201466108U (en) | 2009-07-31 | 2009-07-31 | Mercury and lead-free button battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920061600 CN201466108U (en) | 2009-07-31 | 2009-07-31 | Mercury and lead-free button battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201466108U true CN201466108U (en) | 2010-05-12 |
Family
ID=42393456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920061600 Expired - Fee Related CN201466108U (en) | 2009-07-31 | 2009-07-31 | Mercury and lead-free button battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201466108U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109888320A (en) * | 2019-04-15 | 2019-06-14 | 东莞胜力电池实业有限公司 | A kind of mercury-free silver oxide button battery and preparation method thereof |
-
2009
- 2009-07-31 CN CN 200920061600 patent/CN201466108U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109888320A (en) * | 2019-04-15 | 2019-06-14 | 东莞胜力电池实业有限公司 | A kind of mercury-free silver oxide button battery and preparation method thereof |
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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: 20100512 Termination date: 20120731 |