CN1908241A - Electroplating method for negative pole case of mercury-free alkaline battery - Google Patents
Electroplating method for negative pole case of mercury-free alkaline battery Download PDFInfo
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- CN1908241A CN1908241A CN 200610103752 CN200610103752A CN1908241A CN 1908241 A CN1908241 A CN 1908241A CN 200610103752 CN200610103752 CN 200610103752 CN 200610103752 A CN200610103752 A CN 200610103752A CN 1908241 A CN1908241 A CN 1908241A
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Abstract
the invention discloses a plating method of non-mercury alkaline battery cathode case, which comprises the following parts: 3-20g Cu ion, 10-60f free CN, 4-30g tin ion, 1-35g KOH or 0.71-25g NaOH, 5-5000PPM micro-dose metal ion and 0.01-3g organics in each Cu-Tin alloy. the case is made of 20-77% Ni, 20-77% Cu, and 0.1-3% Cu-Tin alloy, which forms cathode case with pH value at 11-14 and 0.15-2.5 A/cm2 and 20-60 deg.c for 40-240 min.
Description
Technical field
The electro-plating method of negative pole case of mercury-free alkaline battery of the present invention relates to the battery technology field; Be particularly related to the mercury-free alkaline battery technical field; Be specifically related to the electro-plating method technical field of negative pole case of mercury-free alkaline battery.
Background technology
Present electric core battery because of built-in " zinc " this raw material, must add mercury, when preventing " zinc " with other raw materials or metallic contact, produces gas and expands; Owing to added mercury in the battery, and the mercury material that to be the utmost point be difficult to degrade, so the depleted battery can inevitably cause very serious pollution to environment; No exception with regard to button cell.Along with the continuous enhancing of Environmental awareness, be to guarantee continuous development of society economy, button cell mercuryless extremely urgent; And the ROHS of European Union instruction is also implemented on July 1st, 2006; No matter from domestic still from the world, the importance that button cell is mercuryless all is described.
With button cell, at present its battery cathode shell being implemented electric plating method has three kinds: the one, and alkaline electro is zinc-plated, and its advantage is that cost is low, but maximum shortcoming is an inflatable rate height, coating is soft and not fine and close, and outward appearance is coarse.The 2nd, acid electroplating tin, its advantage also is that cost is low, but that its fatal shortcoming is the inflatable rate is very high, does not almost have use value.The 3rd, indium plating technology, its technology is simple, easy care, inflatable rate are also low, although the price of conducting salt is very high, a kind of selection scheme of still can yet be regarded as; But recent situation is extremely pessimistic, because not only the price of conducting salt is very high, price that the more important thing is the electrolysis indium has soared again ten times rapidly, over the past two years, the price of electrolysis indium is paced up and down and is remained high at 7000-10000 unit/KG always, about the price rule of market economy down, by the indium plating technology of the too high control of cost with bad luck on the verge of being replaced.
The present invention is exactly on conscientious and sufficient investigation, understanding, analysis, the existing known technology of summary basis, and analyzing market discipline, holding under the market outlook prerequisite, for the deficiency, defective and the drawback that overcome and solve generation inflatable that present button cell exists and contaminate environment are succeeded in developing.
Summary of the invention
The electro-plating method that the purpose of this invention is to provide a kind of negative pole case of mercury-free alkaline battery.The electro-plating method of negative pole case of mercury-free alkaline battery of the present invention is in master's the multicomponent alloy plating liquid at every liter of gunmetal, contains:
The cupric ion 3-20 that is provided by cupric oxide, cuprous cyanide restrains,
The free cyanogen 10-60 that is provided by sodium cyanide, potassium cyanide restrains,
The tin ion 4-30 that is provided by sodium stannate, potassium stannate restrains,
By selecting a kind of in 1-35 gram potassium oxide, the 0.71-25 gram sodium hydroxide,
By Sulfates, oxide-based, organic salt, halogen compounds class, amphoteric metal salt, Nitrates, oxyhydroxide class trace metal ion 5-5000PPM that provide and that contain indium, zinc, cobalt, nickel, zirconium, molybdenum, palladium, lead, bismuth ion,
By a kind of organism 0.01-3 gram that provides in the negatively charged ion of selecting to contain 6-20 carbochain, the nonionogenic tenside;
Press following operation steps:
1., select a kind of in the tinsel of iron plate, stainless steel substrates, be made into the housing of battery cathode;
2., to the housing electroplating bright watt nickel of battery cathode;
3., to the housing of the battery cathode that is electroplate with light watt nickel, electro-coppering;
4., to the housing of the battery cathode that is electroplate with light watt nickel and copper, be main multicomponent alloy plating liquid with above-described gunmetal, according to the mode of barrel plating, electroplating copper tin alloy is the multicomponent alloy of leading, thereby is made into the battery cathode shell.
The electro-plating method of described negative pole case of mercury-free alkaline battery, can also be: described operation steps be 1. with a kind of in the tinsel of selecting web-like iron plate, web-like stainless steel substrates and after removing degreasing, directly carry out the electroplating bright watt nickel of operation steps in 2., the electro-coppering in 3., the electroplating copper tin alloy in 4. and be the operation of main multicomponent alloy, be made into the battery cathode shell at last.
The electro-plating method of described negative pole case of mercury-free alkaline battery, can also be: described operation steps be 1. with a kind of in the tinsel of selecting web-like iron plate, web-like stainless steel substrates and after removing degreasing, directly carry out the operation of the electroplating bright watt nickel of operation steps in 2., the electro-coppering in 3., be made into battery cathode sheet again, carry out the electroplating copper tin alloy of operation steps in 4. again and be the operation of main multicomponent alloy.
The electro-plating method of described negative pole case of mercury-free alkaline battery, its described electroplating bright watt nickel, electro-coppering, electroplating copper tin alloy are that main multicomponent alloy is only selecting one side is carried out galvanized mode, a kind of mode in the galvanized mode is all carried out on the two sides.
The electro-plating method of described negative pole case of mercury-free alkaline battery, its described electroplating bright watt nickel is the electro-plating method of selecting traditional disclosed electroplating bright watt nickel for use, described electro-coppering is an electro-plating method of selecting traditional disclosed alkali copper/burnt copper/sour copper for use.
The electro-plating method of described negative pole case of mercury-free alkaline battery, when its described barrel plating gunmetal is master's multicomponent alloy, for selecting a kind of in insoluble anode, the soluble anode, its insoluble anode is for selecting a kind of in stainless steel, platinum titanium, the carbon plate, its soluble anode is for selecting a kind of in tin, the gunmetal, and the control pH value is 11-14, and cathode current density is 0.15-2.5 ampere/square decimeter, temperature is 20-60 ℃, and the time is 40-240 minute.
The electro-plating method of described negative pole case of mercury-free alkaline battery, its described electroplating copper tin alloy are main multicomponent alloy, keep the metal 0.1-3% of tin 20-77%, copper 20-77%, multicomponent alloy in its coating.
By the present invention, realize the battery cathode shell is carried out the science electric plating method, do not produce gas expansion, purpose free from environmental pollution to reach method battery simple, reliable and stable, that produce.
The present invention can accomplish the end in view.
For achieving the above object, technical scheme provided by the invention is: a kind of electro-plating method of negative pole case of mercury-free alkaline battery is in the liquid of main multicomponent alloy plating liquid at every liter of gunmetal, contains:
The cupric ion 3-20 that is provided by cupric oxide, cuprous cyanide restrains,
The free cyanogen 10-60 that is provided by sodium cyanide, potassium cyanide restrains,
The tin ion 4-30 that is provided by sodium stannate, potassium stannate restrains,
By selecting a kind of in 1-35 gram potassium hydroxide, the 0.71-25 gram sodium hydroxide,
By Sulfates, oxide-based, organic salt, halogen compounds class, amphoteric metal salt, Nitrates, oxyhydroxide class trace metal ion 5-5000PPM that provide and that contain indium, zinc, cobalt, nickel, zirconium, molybdenum, palladium, lead, bismuth ion,
By a kind of organism 0.01-3 gram that provides in the negatively charged ion of selecting to contain 6-20 carbochain, the nonionogenic tenside;
Press following operation steps:
1., select a kind of in the tinsel of iron plate, stainless steel substrates, be made into the housing of battery cathode;
2., to the housing electroplating bright watt nickel of battery cathode;
3., to the housing of the battery cathode that is electroplate with light watt nickel, electro-coppering;
4., to the housing of the battery cathode that is electroplate with light watt nickel and copper, be main multicomponent alloy plating liquid with above-described gunmetal, according to the mode of barrel plating, electroplating copper tin alloy is the multicomponent alloy of leading, thereby is made into the battery cathode shell.
The electro-plating method of described negative pole case of mercury-free alkaline battery, can also be: described operation steps be 1. with a kind of in the tinsel of selecting web-like iron plate, web-like stainless steel substrates and after removing degreasing, directly carry out the electroplating bright watt nickel of operation steps in 2., the electro-coppering in 3., the electroplating copper tin alloy in 4. and be the operation of main multicomponent alloy, be made into the battery cathode shell at last.
The electro-plating method of described negative pole case of mercury-free alkaline battery, can also be: described operation steps be 1. with a kind of in the tinsel of selecting web-like iron plate, web-like stainless steel substrates and after removing degreasing, directly carry out the operation of the electroplating bright watt nickel of operation steps in 2., the electro-coppering in 3., be made into battery cathode sheet again, carry out the electroplating copper tin alloy of operation steps in 4. again and be the operation of main multicomponent alloy.
The electro-plating method of described negative pole case of mercury-free alkaline battery, its described electroplating bright watt nickel, electro-coppering, electroplating copper tin alloy are that main multicomponent alloy all carries out galvanized mode, a kind of mode in the galvanized mode is all carried out on the two sides one side only selecting.
The electro-plating method of described negative pole case of mercury-free alkaline battery, its described electroplating bright watt nickel is the electro-plating method of selecting traditional disclosed electroplating bright watt nickel for use, described electro-coppering is an electro-plating method of selecting traditional disclosed alkali copper/burnt copper/sour copper for use.
The electro-plating method of described negative pole case of mercury-free alkaline battery, when its described barrel plating gunmetal is master's multicomponent alloy, for selecting a kind of in insoluble anode, the soluble anode, its insoluble anode is for selecting a kind of in stainless steel, platinum titanium, the carbon plate, its soluble anode is for selecting a kind of in tin, the gunmetal, and the control pH value is 11-14, and cathode current density is 0.15-2.5 ampere/square decimeter, temperature is 20-60 ℃, and the time is 40-240 minute.
The electro-plating method of described negative pole case of mercury-free alkaline battery, its described electroplating copper tin alloy are main multicomponent alloy, keep the metal 0.1-3% of tin 20-77%, copper 20-77%, multicomponent alloy in its coating.
Principle of work of the present invention is: the present invention is for a kind of mercury-free basic zinc/manganese, zinc/silver-colored manganese button cell are provided at the electro-plating method on the battery cathode shell, particularly provides a kind of multicomponent alloy based on gunmetal to cross the electroplating process of layer.This method is to power at the battery cathode shell to plate one deck and cross layer based on the multicomponent alloy of gunmetal, takes this mode, can prevent the gas expansion that " zinc " is produced when contacting with negative plate; Just because of having taked this method, thereby solved the gas expansion problem of battery; So, in battery, just do not need to add again to prevent to have produced the mercury of gas expansion, thereby just avoided the pollution of mercury yet environment.
Owing to adopted technical scheme provided by the invention, because principle of work of the present invention is described, make the present invention compare with existing known technology, have following beneficial effect:
1, crosses the electroplating technology process of layer owing to be provided with barrel plating among the present invention based on the multicomponent alloy of gunmetal, thereby obtained to prevent that battery from producing gas expansion, do not need to add the mercury of preventing inflatable again in battery, having avoided the beneficial effects such as pollution of mercury to environment.
2, since among the present invention except that electroplating copper tin alloy is main multicomponent alloy and set electroplating bright watt nickel, electro-coppering, be traditional disclosed method and be familiar with by everybody, thereby the method that obtained is simple, reliable and stable, easy to utilize, and effectively solves the market requirement and the low beneficial effect of cost.
3,, thereby obtained the beneficial effect being convenient to implement because the present invention is provided with three kinds of embodiments.
Description of drawings
Fig. 1 is the technical process window synoptic diagram of first kind of embodiment of the present invention.
Fig. 2 is the technical process window synoptic diagram of second kind of embodiment of the present invention.
Fig. 3 is the technical process window synoptic diagram of the third embodiment of the present invention.
Embodiment one
Below in conjunction with Figure of description, the present invention is described in detail.Shown in Figure of description 1: a kind of electro-plating method of negative pole case of mercury-free alkaline battery is in master's the multicomponent alloy plating liquid at one liter of gunmetal, contains:
The cupric ion 3 that is provided by cupric oxide restrains,
The free cyanogen 10 that is provided by sodium cyanide restrains,
The tin ion 4 that is provided by sodium stannate restrains,
Potassium hydroxide 1 gram,
By Sulfates, oxide-based, organic salt, halogen compounds class, amphoteric metal salt, Nitrates, oxyhydroxide class trace metal ion 5PPM that provide and that contain indium, zinc, cobalt, nickel, zirconium, molybdenum, palladium, lead, bismuth ion,
Contain organism 0.01 gram that the negatively charged ion of 6-20 carbochain provides;
Press following operation steps:
1., select the tinsel of iron plate, be made into the housing of battery cathode;
2., to the housing electroplating bright watt nickel of battery cathode;
3., to the housing of the battery cathode that is electroplate with light watt nickel, electro-coppering;
4., to the housing of the battery cathode that is electroplate with light watt nickel and copper, be main multicomponent alloy plating liquid with above-described gunmetal, according to the mode of barrel plating, electroplating copper tin alloy is the multicomponent alloy of leading, thereby is made into the battery cathode shell.
The electro-plating method of described negative pole case of mercury-free alkaline battery, its described electroplating bright watt nickel, electro-coppering, electroplating copper tin alloy are that main multicomponent alloy is and selects only one side to be carried out galvanized mode and electroplate.
The electro-plating method of described negative pole case of mercury-free alkaline battery, its described electroplating bright watt nickel is the electro-plating method of selecting traditional disclosed electroplating bright watt nickel for use, described electro-coppering is an electro-plating method of selecting traditional disclosed alkali copper/burnt copper/sour copper for use.
When the electro-plating method of described negative pole case of mercury-free alkaline battery, its described barrel plating gunmetal are master's multicomponent alloy, make described insoluble anode for selecting stainless steel; The control pH value is 11, and cathode current density is 0.15 ampere/square decimeter, and temperature is 20 ℃, and the time is 40 minutes.
The electro-plating method of described negative pole case of mercury-free alkaline battery, its described electroplating copper tin alloy are main multicomponent alloy, keep the metal 3% of tin 20%, copper 77%, multicomponent alloy in its coating.
Embodiment two
Implement by embodiment one, just: the electro-plating method of described a kind of negative pole case of mercury-free alkaline battery is in master's the multicomponent alloy plating liquid at one liter of gunmetal, contains:
The cupric ion 6 that is provided by cuprous cyanide restrains,
The free cyanogen 20 that is provided by potassium cyanide restrains,
The tin ion 10 that is provided by potassium stannate restrains,
Sodium hydroxide 0.71 gram,
By Sulfates, oxide-based, organic salt, halogen compounds class, amphoteric metal salt, Nitrates, oxyhydroxide class trace metal ion 500PPM that provide and that contain indium, zinc, cobalt, nickel, zirconium, molybdenum, palladium, lead, bismuth ion,
Organism 0.01 gram that nonionogenic tenside provides;
Press following operation steps:
1., select the tinsel of stainless steel substrates, be made into the housing of battery cathode;
2., to the housing electroplating bright watt nickel of battery cathode;
3., to the housing of the battery cathode that is electroplate with light watt nickel, electro-coppering;
4., to the housing of the battery cathode that is electroplate with light watt nickel and copper, be main multicomponent alloy plating liquid with above-described gunmetal, according to the mode of barrel plating, electroplating copper tin alloy is the multicomponent alloy of leading, thereby is made into the battery cathode shell.
The electro-plating method of described negative pole case of mercury-free alkaline battery, its described electroplating bright watt nickel, electro-coppering, electroplating copper tin alloy are that main multicomponent alloy is selection and galvanized mode is all carried out on the two sides electroplates.
When the electro-plating method of described negative pole case of mercury-free alkaline battery, its described barrel plating gunmetal are master's multicomponent alloy, be described insoluble anode for selecting the platinum titanium, the control pH value is 11.5, cathode current density is 0.5 ampere/square decimeter, and temperature is 30 ℃, and the time is 80 minutes.
The electro-plating method of described negative pole case of mercury-free alkaline battery, its described electroplating copper tin alloy are main multicomponent alloy, keep the metal 2.5% of tin 35%, copper 62.5%, multicomponent alloy in its coating.
Embodiment three
Implement by embodiment one, just: the electro-plating method of described a kind of negative pole case of mercury-free alkaline battery is in master's the multicomponent alloy plating liquid at one liter of gunmetal, contains:
The cupric ion 10 that is provided by cupric oxide restrains,
The free cyanogen 30 that is provided by sodium cyanide restrains,
The tin ion 15 that is provided by sodium stannate restrains,
Potassium hydroxide 17 grams,
By Sulfates, oxide-based, organic salt, halogen compounds class, amphoteric metal salt, Nitrates, oxyhydroxide class trace metal ion 1500PPM that provide and that contain indium, zinc, cobalt, nickel, zirconium, molybdenum, palladium, lead, bismuth ion,
Contain organism 1.5 grams that the negatively charged ion of 6-20 carbochain provides;
Press following operation steps:
1., select the tinsel of iron plate, be made into the housing of battery cathode;
2., to the housing electroplating bright watt nickel of battery cathode;
3., to the housing of the battery cathode that is electroplate with light watt nickel, electro-coppering;
4., to the housing of the battery cathode that is electroplate with light watt nickel and copper, be main multicomponent alloy plating liquid with above-described gunmetal, according to the mode of barrel plating, electroplating copper tin alloy is the multicomponent alloy of leading, thereby is made into the battery cathode shell.
The electro-plating method of described negative pole case of mercury-free alkaline battery, its described electroplating bright watt nickel, electro-coppering, electroplating copper tin alloy are that main multicomponent alloy is and selects only one side to be carried out galvanized mode and electroplate.
When the electro-plating method of described negative pole case of mercury-free alkaline battery, its described barrel plating gunmetal are master's multicomponent alloy, be described insoluble anode for selecting carbon plate, the control pH value is 12.3, cathode current density is 1 ampere/square decimeter, and temperature is 40 ℃, and the time is 120 minutes.
The electro-plating method of described negative pole case of mercury-free alkaline battery, its described electroplating copper tin alloy are main multicomponent alloy, keep the metal 2% of tin 45%, copper 53%, multicomponent alloy in its coating.
Embodiment four
Implement by embodiment one, just: the electro-plating method of described a kind of negative pole case of mercury-free alkaline battery is in master's the multicomponent alloy plating liquid at one liter of gunmetal, contains:
The cupric ion 14 that is provided by cuprous cyanide restrains,
The free cyanogen 40 that is provided by potassium cyanide restrains,
The tin ion 20 that is provided by potassium stannate restrains,
Sodium hydroxide 12.15 grams,
By Sulfates, oxide-based, organic salt, halogen compounds class, amphoteric metal salt, Nitrates, oxyhydroxide class trace metal ion 2500PPM that provide and that contain indium, zinc, cobalt, nickel, zirconium, molybdenum, palladium, lead, bismuth ion,
Organism 1.5 grams that nonionogenic tenside provides;
Press following operation steps:
1., select the tinsel of stainless steel substrates, be made into the housing of battery cathode;
2., to the housing electroplating bright watt nickel of battery cathode;
3., to the housing of the battery cathode that is electroplate with light watt nickel, electro-coppering;
4., to the housing of the battery cathode that is electroplate with light watt nickel and copper, be main multicomponent alloy plating liquid with above-described gunmetal, according to the mode of barrel plating, electroplating copper tin alloy is the multicomponent alloy of leading, thereby is made into the battery cathode shell.
The electro-plating method of described negative pole case of mercury-free alkaline battery, its described electroplating bright watt nickel, electro-coppering, electroplating copper tin alloy are that main multicomponent alloy is selection and galvanized mode is all carried out on the two sides electroplates.
When the electro-plating method of described negative pole case of mercury-free alkaline battery, its described barrel plating gunmetal are master's multicomponent alloy, be the anode of described solubility for selecting sheet tin, the control pH value is 13, cathode current density is 1.5 amperes/square decimeter, and temperature is 50 ℃, and the time is 160 minutes.
The electro-plating method of described negative pole case of mercury-free alkaline battery, its described electroplating copper tin alloy are main multicomponent alloy, keep the metal 1.5% of tin 53.5%, copper 45%, multicomponent alloy in its coating.
Embodiment five
Implement by embodiment one, just: the electro-plating method of described a kind of negative pole case of mercury-free alkaline battery is in master's the multicomponent alloy plating liquid at one liter of gunmetal, contains:
The cupric ion 17 that is provided by cupric oxide restrains,
The free cyanogen 50 that is provided by sodium cyanide restrains,
The tin ion 25 that is provided by sodium stannate restrains,
Potassium hydroxide 35 grams,
By Sulfates, oxide-based, organic salt, halogen compounds class, amphoteric metal salt, Nitrates, oxyhydroxide class trace metal ion 3500PPM that provide and that contain indium, zinc, cobalt, nickel, zirconium, molybdenum, palladium, lead, bismuth ion,
Contain organism 3 grams that the negatively charged ion of 6-20 carbochain provides;
Press following operation steps:
1., select the tinsel of iron plate, be made into the housing of battery cathode;
2., to the housing electroplating bright watt nickel of battery cathode;
3., to the housing of the battery cathode that is electroplate with light watt nickel, electro-coppering;
4., to the housing of the battery cathode that is electroplate with light watt nickel and copper, be main multicomponent alloy plating liquid with above-described gunmetal, according to the mode of barrel plating, electroplating copper tin alloy is the multicomponent alloy of leading, thereby is made into the battery cathode shell.
The electro-plating method of described negative pole case of mercury-free alkaline battery, its described electroplating bright watt nickel, electro-coppering, electroplating copper tin alloy are that main multicomponent alloy is and selects only one side to be carried out galvanized mode and electroplate.
When the electro-plating method of described negative pole case of mercury-free alkaline battery, its described barrel plating gunmetal are master's multicomponent alloy, be the anode of described solubility for selecting gunmetal, the control pH value is 13.5, cathode current density is 2 amperes/square decimeter, and temperature is 60 ℃, and the time is 200 minutes.
The electro-plating method of described negative pole case of mercury-free alkaline battery, its described electroplating copper tin alloy are main multicomponent alloy, keep the metal 0.8% of tin 64.2%, copper 35%, multicomponent alloy in its coating.
Embodiment six
Implement by embodiment one, just: the electro-plating method of described a kind of negative pole case of mercury-free alkaline battery is in master's the multicomponent alloy plating liquid at one liter of gunmetal, contains:
The cupric ion 20 that is provided by cuprous cyanide restrains.
The free cyanogen 60 that is provided by potassium cyanide restrains,
The tin ion 30 that is provided by potassium stannate restrains,
Sodium hydroxide 25 grams,
By Sulfates, oxide-based, organic salt, halogen compounds class, amphoteric metal salt, Nitrates, oxyhydroxide class trace metal ion 5000PPM that provide and that contain indium, zinc, cobalt, nickel, zirconium, molybdenum, palladium, lead, bismuth ion,
Organism 3 grams that nonionogenic tenside provides;
Press following operation steps:
1., select the tinsel of stainless steel substrates, be made into the housing of battery cathode;
2., to the housing electroplating bright watt nickel of battery cathode;
3., to the housing of the battery cathode that is electroplate with light watt nickel, electro-coppering;
4., to the housing of the battery cathode that is electroplate with light watt nickel and copper, be main multicomponent alloy plating liquid with above-described gunmetal, according to the mode of barrel plating, electroplating copper tin alloy is the multicomponent alloy of leading, thereby is made into the battery cathode shell.
The electro-plating method of described negative pole case of mercury-free alkaline battery, its described electroplating bright watt nickel, electro-coppering, electroplating copper tin alloy are that main multicomponent alloy is selection and galvanized mode is all carried out on the two sides electroplates.
When the electro-plating method of described negative pole case of mercury-free alkaline battery, its described barrel plating gunmetal are master's multicomponent alloy, make described insoluble anode for selecting stainless steel, the control pH value is 14, cathode current density is 2.5 amperes/square decimeter, and temperature is 40 ℃, and the time is 240 minutes.
The electro-plating method of described negative pole case of mercury-free alkaline battery, its described electroplating copper tin alloy are main multicomponent alloy, keep the metal 0.1% of tin 77%, copper 22.9%, multicomponent alloy in its coating.
Embodiment seven
Implement by embodiment one, just: the electro-plating method of described a kind of negative pole case of mercury-free alkaline battery is in master's the multicomponent alloy plating liquid at one liter of gunmetal, contains:
The cupric ion 14 that is provided by cuprous cyanide restrains,
The free cyanogen 40 that is provided by potassium cyanide restrains,
The tin ion 20 that is provided by potassium stannate restrains,
Sodium hydroxide 12.15 grams,
By Sulfates, oxide-based, organic salt, halogen compounds class, amphoteric metal salt, Nitrates, oxyhydroxide class trace metal ion 2500PPM that provide and that contain indium, zinc, cobalt, nickel, zirconium, molybdenum, palladium, lead, bismuth ion,
Organism 1.5 grams that nonionogenic tenside provides;
Press following operation steps:
1., select the tinsel of stainless steel substrates, be made into the housing of battery cathode;
2., to the housing electroplating bright watt nickel of battery cathode;
3., to the housing of the battery cathode that is electroplate with light watt nickel, electro-coppering;
4., to the housing of the battery cathode that is electroplate with light watt nickel and copper, be main multicomponent alloy plating liquid with above-described gunmetal, according to the mode of barrel plating, electroplating copper tin alloy is the multicomponent alloy of leading, thereby is made into the battery cathode shell.
The electro-plating method of described negative pole case of mercury-free alkaline battery, its described electroplating bright watt nickel, electro-coppering, electroplating copper tin alloy are that main multicomponent alloy is selection and galvanized mode is all carried out on the two sides electroplates.
When the electro-plating method of described negative pole case of mercury-free alkaline battery, its described barrel plating gunmetal are master's multicomponent alloy, be the anode of described solubility for selecting sheet tin, the control pH value is 13, cathode current density is 1.5 amperes/square decimeter, and temperature is 50 ℃, and the time is 160 minutes.
The electro-plating method of described negative pole case of mercury-free alkaline battery, its described electroplating copper tin alloy are main multicomponent alloy, keep the metal 3% of tin 77%, copper 20%, multicomponent alloy in its coating.
Embodiment eight
Implement by embodiment one, just the step shown in the by specification accompanying drawing 2 is implemented, that is: the electro-plating method of described negative pole case of mercury-free alkaline battery, its described operation steps is 1. with after selecting the web-like iron plate to remove degreasing, directly carry out the electroplating bright watt nickel of operation steps in 2., the electro-coppering in 3., the electroplating copper tin alloy in 4. and be the operation of main multicomponent alloy, thereby be made into the battery cathode shell again.
Embodiment nine
Implement by embodiment two, just the step shown in the by specification accompanying drawing 2 is implemented, that is: the electro-plating method of described negative pole case of mercury-free alkaline battery, its described operation steps is 1. with after selecting the web-like stainless steel substrates to remove degreasing, directly carry out the electroplating bright watt nickel of operation steps in 2., the electro-coppering in 3., the electroplating copper tin alloy in 4. and be the operation of main multicomponent alloy, thereby be made into the battery cathode shell again.
Embodiment ten
Implement by embodiment three, just the step shown in the by specification accompanying drawing 2 is implemented, that is: the electro-plating method of described negative pole case of mercury-free alkaline battery, its described operation steps is 1. with after selecting the web-like iron plate to remove degreasing, directly carry out the electroplating bright watt nickel of operation steps in 2., the electro-coppering in 3., the electroplating copper tin alloy in 4. and be the operation of main multicomponent alloy, thereby be made into the battery cathode shell again.
Embodiment 11
Implement by embodiment four, just the step shown in the by specification accompanying drawing 2 is implemented, that is: the electro-plating method of described negative pole case of mercury-free alkaline battery, its described operation steps is 1. with after selecting the web-like stainless steel substrates to remove degreasing, directly carry out the electroplating bright watt nickel of operation steps in 2., the electro-coppering in 3., the electroplating copper tin alloy in 4. and be the operation of main multicomponent alloy, thereby be made into the battery cathode shell again.
Embodiment 12
Implement by embodiment five, just the step shown in the by specification accompanying drawing 2 is implemented, that is: the electro-plating method of described negative pole case of mercury-free alkaline battery, its described operation steps is 1. with after selecting the web-like iron plate to remove degreasing, directly carry out the electroplating bright watt nickel of operation steps in 2., the electro-coppering in 3., the electroplating copper tin alloy in 4. and be the operation of main multicomponent alloy, thereby be made into the battery cathode shell again.
Embodiment 13
Implement by embodiment six, just the step shown in the by specification accompanying drawing 2 is implemented, that is: the electro-plating method of described negative pole case of mercury-free alkaline battery, its described operation steps is 1. with after selecting the web-like stainless steel substrates to remove degreasing, directly carry out the electroplating bright watt nickel of operation steps in 2., the electro-coppering in 3., the electroplating copper tin alloy in 4. and be the operation of main multicomponent alloy, thereby be made into the battery cathode shell again.
Embodiment 14
Implement by embodiment seven, just the step shown in the by specification accompanying drawing 2 is implemented, that is: the electro-plating method of described negative pole case of mercury-free alkaline battery, its described operation steps is 1. with after selecting the web-like stainless steel substrates to remove degreasing, directly carry out the electroplating bright watt nickel of operation steps in 2., the electro-coppering in 3., the electroplating copper tin alloy in 4. and be the operation of main multicomponent alloy, thereby be made into the battery cathode shell again.
Embodiment 15
Implement by embodiment one, just the step shown in the by specification accompanying drawing 3 is implemented, that is: the electro-plating method of described negative pole case of mercury-free alkaline battery, its described operation steps is 1. with after selecting the web-like iron plate to remove degreasing, directly carry out the operation of the electroplating bright watt nickel of operation steps in 2., the electro-coppering in 3., be made into battery cathode sheet again, carry out the electroplating copper tin alloy of operation steps in 4. again and be the operation of main multicomponent alloy.
Embodiment 16
Implement by embodiment two, just the step shown in the by specification accompanying drawing 3 is implemented, that is: the electro-plating method of described negative pole case of mercury-free alkaline battery, after 1. its described operation steps removes degreasing to select the web-like stainless steel substrates, directly carry out the operation of the electroplating bright watt nickel of operation steps in 2., the electro-coppering in 3., be made into battery cathode sheet again, carry out the electroplating copper tin alloy of operation steps in 4. again and be the operation of main multicomponent alloy.
Embodiment 17
Implement by embodiment three, just the step shown in the by specification accompanying drawing 3 is implemented, that is: the electro-plating method of described negative pole case of mercury-free alkaline battery, after 1. its described operation steps removes degreasing to select the web-like iron plate, directly carry out the operation of the electroplating bright watt nickel of operation steps in 2., the electro-coppering in 3., be made into battery cathode sheet again, carry out the electroplating copper tin alloy of operation steps in 4. again and be the operation of main multicomponent alloy.
Embodiment 18
Implement by embodiment four, just the step shown in the by specification accompanying drawing 3 is implemented, that is: the electro-plating method of described negative pole case of mercury-free alkaline battery, after 1. its described operation steps removes degreasing to select the web-like stainless steel substrates, directly carry out the operation of the electroplating bright watt nickel of operation steps in 2., the electro-coppering in 3., be made into battery cathode sheet again, carry out the electroplating copper tin alloy of operation steps in 4. again and be the operation of main multicomponent alloy.
Embodiment 19
Implement by embodiment five, just the step shown in the by specification accompanying drawing 3 is implemented, that is: the electro-plating method of described negative pole case of mercury-free alkaline battery, after 1. its described operation steps removes degreasing to select the web-like iron plate, directly carry out the operation of the electroplating bright watt nickel of operation steps in 2., the electro-coppering in 3., be made into battery cathode sheet again, carry out the electroplating copper tin alloy of operation steps in 4. again and be the operation of main multicomponent alloy.
Embodiment 20
Implement by embodiment six, just the step shown in the by specification accompanying drawing 3 is implemented, that is: the electro-plating method of described negative pole case of mercury-free alkaline battery, after 1. its described operation steps removes degreasing to select the web-like stainless steel substrates, directly carry out the operation of the electroplating bright watt nickel of operation steps in 2., the electro-coppering in 3., be made into battery cathode sheet again, carry out the electroplating copper tin alloy of operation steps in 4. again and be the operation of main multicomponent alloy.
Embodiment 21
Implement by embodiment seven, just the step shown in the by specification accompanying drawing 3 is implemented, that is: the electro-plating method of described negative pole case of mercury-free alkaline battery, after 1. its described operation steps removes degreasing to select the web-like iron plate, directly carry out the operation of the electroplating bright watt nickel of operation steps in 2., the electro-coppering in 3., be made into battery cathode sheet again, carry out the electroplating copper tin alloy of operation steps in 4. again and be the operation of main multicomponent alloy.
In above-mentioned specific implementation process: the gunmetal to embodiment one to 21 is main multicomponent alloy plating liquid, make with 1,5,10,20,30,50,100,150,200,300,500,1000,1500,2000,3000 liter respectively, all received the good result of expection.
The above is preferred embodiment of the present invention only, is not that the present invention is done any pro forma restriction; The those of ordinary skill of all industry, but all shown in the by specification accompanying drawing and the above, and implement the present invention swimmingly; But all those skilled in the art in not breaking away from the technical solution of the present invention scope, can utilize the above technology contents that discloses, and the equivalent variations of a little change of making, modification and differentiation is equivalent embodiment of the present invention; Simultaneously, all foundations essence technology of the present invention all still belongs in the scope of technical scheme of the present invention change, modification and the differentiation etc. of any equivalent variations that above embodiment did.
The present invention has carried out property on probation examination after making and finishing, and through property examination on probation, has obtained no mercury button type battery inflatable rate and has been lower than 1% good result.
Claims (7)
1, a kind of electro-plating method of negative pole case of mercury-free alkaline battery is characterized in that: at one liter of gunmetal is in the liquid of main multicomponent alloy plating liquid, contains:
The cupric ion 3-20 that is provided by cupric oxide, cuprous cyanide restrains,
The free cyanogen 10-60 that is provided by sodium cyanide, potassium cyanide restrains,
The tin ion 4-30 that is provided by sodium stannate, potassium stannate restrains,
By selecting a kind of in 1-35 gram potassium hydroxide, the 0.71-25 gram sodium hydroxide,
By Sulfates, oxide-based, organic salt, halogen compounds class, amphoteric metal salt, Nitrates, oxyhydroxide class trace metal ion 5-5000PPM that provide and that contain indium, zinc, cobalt, nickel, zirconium, molybdenum, palladium, lead, bismuth ion,
By a kind of organism 0.01-3 gram that provides in the negatively charged ion of selecting to contain 6-20 carbochain, the nonionogenic tenside;
Press following operation steps:
1., select a kind of in iron plate, the stainless steel substrates, be made into the housing of battery cathode;
2., to the housing electroplating bright watt nickel of battery cathode;
3., to the housing of the battery cathode that is electroplate with light watt nickel, electro-coppering;
4., to the housing of the battery cathode that is electroplate with light watt nickel and copper, be main multicomponent alloy plating liquid with above-described gunmetal, according to the mode of barrel plating, electroplating copper tin alloy is the multicomponent alloy of leading, thereby is made into the battery cathode shell.
2, the electro-plating method of negative pole case of mercury-free alkaline battery according to claim 1, it is characterized in that: described operation steps is 1. to select a kind of in web-like iron plate, the stainless steel substrates after removing degreasing, directly carry out the electroplating bright watt nickel of operation steps in 2., the electro-coppering in 3., the electroplating copper tin alloy in 4. and be the operation of main multicomponent alloy, be made into the battery cathode shell at last.
3, the electro-plating method of negative pole case of mercury-free alkaline battery according to claim 1, it is characterized in that: described operation steps is 1. to select a kind of in web-like iron plate, the web-like stainless steel substrates after removing degreasing, directly carry out the operation of the electroplating bright watt nickel of operation steps in 2., the electro-coppering in 3., be made into battery cathode sheet again, carry out the electroplating copper tin alloy of operation steps in 4. again and be the operation of main multicomponent alloy.
4, the electro-plating method of negative pole case of mercury-free alkaline battery according to claim 1 is characterized in that: described electroplating bright watt nickel, electro-coppering, electroplating copper tin alloy are that main multicomponent alloy is only selecting one side is carried out galvanized mode, a kind of mode in the galvanized mode is all carried out on the two sides.
5, the electro-plating method of negative pole case of mercury-free alkaline battery according to claim 1, it is characterized in that: described electroplating bright watt nickel is the electro-plating method of selecting traditional disclosed electroplating bright watt nickel for use, and described electro-coppering is an electro-plating method of selecting traditional disclosed alkali copper/burnt copper/sour copper for use.
6, according to the electro-plating method of claim 1 or 2 or 3 or 4 or 5 described negative pole case of mercury-free alkaline battery, it is characterized in that: when described barrel plating gunmetal is master's multicomponent alloy, for selecting a kind of in insoluble anode, the soluble anode, its insoluble anode is for selecting a kind of in stainless steel, platinum titanium, the carbon plate, its soluble anode is for selecting a kind of in tin, the gunmetal, the control pH value is 11-14, cathode current density is 0.15-2.5 ampere/square decimeter, temperature is 20-60 ℃, and the time is 40-240 minute.
7, according to the electro-plating method of claim 1 or 2 or 3 or 4 or 5 described negative pole case of mercury-free alkaline battery, it is characterized in that: described electroplating copper tin alloy is main multicomponent alloy, keeps the metal 0.1-3% of tin 20-77%, copper 20-77%, multicomponent alloy in its coating.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200610103752 CN100519845C (en) | 2006-07-28 | 2006-07-28 | Electroplating method for negative pole case of mercury-free alkaline battery |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200610103752 CN100519845C (en) | 2006-07-28 | 2006-07-28 | Electroplating method for negative pole case of mercury-free alkaline battery |
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| CN100519845C CN100519845C (en) | 2009-07-29 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103060868A (en) * | 2013-01-21 | 2013-04-24 | 新乡市正元科技电源材料有限公司 | Battery case nickel-plating fault treatment process |
| CN104562106A (en) * | 2014-12-27 | 2015-04-29 | 广东致卓精密金属科技有限公司 | Cyanide-free low-tin alloy chromium-plating and nickel-substituting plating solution and process |
| CN113652721A (en) * | 2021-08-16 | 2021-11-16 | 广西柳州凯博科技有限公司 | Mold and electroplating method for button battery negative electrode cover |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102560577A (en) * | 2012-03-08 | 2012-07-11 | 杜强 | Nickel-free black tin cobalt alloy plating solution and electroplating technology by using same |
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2006
- 2006-07-28 CN CN 200610103752 patent/CN100519845C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103060868A (en) * | 2013-01-21 | 2013-04-24 | 新乡市正元科技电源材料有限公司 | Battery case nickel-plating fault treatment process |
| CN103060868B (en) * | 2013-01-21 | 2016-05-04 | 新乡市正元科技电源材料有限公司 | Battery case barrel nickel plating troubleshooting technique |
| CN104562106A (en) * | 2014-12-27 | 2015-04-29 | 广东致卓精密金属科技有限公司 | Cyanide-free low-tin alloy chromium-plating and nickel-substituting plating solution and process |
| CN113652721A (en) * | 2021-08-16 | 2021-11-16 | 广西柳州凯博科技有限公司 | Mold and electroplating method for button battery negative electrode cover |
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| CN100519845C (en) | 2009-07-29 |
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Assignee: Foshan Nanhai Sunking Battery Materials Co., Ltd. Assignor: Du Qiang Contract fulfillment period: 2009.8.15 to 2014.8.15 contract change Contract record no.: 2009440001670 Denomination of invention: Electroplating method for negative pole case of mercury-free alkaline battery Granted publication date: 20090729 License type: Exclusive license Record date: 20091010 |
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