CN100362130C - Method of chemical copper plating on hydregen storage alloy surface - Google Patents
Method of chemical copper plating on hydregen storage alloy surface Download PDFInfo
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- CN100362130C CN100362130C CNB2005101273384A CN200510127338A CN100362130C CN 100362130 C CN100362130 C CN 100362130C CN B2005101273384 A CNB2005101273384 A CN B2005101273384A CN 200510127338 A CN200510127338 A CN 200510127338A CN 100362130 C CN100362130 C CN 100362130C
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- storage alloy
- copper plating
- hydrogen storage
- chemical copper
- alloy powder
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Abstract
The present invention provides a method of a chemical copper plating process on a hydrogen storage alloy surface, which comprises the following steps: a screening process is carried out by a standard sample dividing screen, and uniform hydrogen storage alloy powder with the granularity of 300 to 400 meshes is selected; 0.9375 g to 4.6875 g of CuSO4.5H2O is dissolved in 200 ml of distillated water, 0.10 to 0.25 mL of HF is added, the temperature is controlled from 30 to 40 DEG C, and a stirring process is carried out; 12 g of hydrogen storage alloy powder is added into a reactor, the stirring speed is from 600 to 800 rpm by control, and a reaction is immediately stopped after the pH value of solution is stabilized to 3.5 to 3.3; hydrogen storing alloy is repetitively washed by the distillated water and anhydrous alcohol, and a product is obtained by drying in vacuum. The method of a chemical copper plating process on a hydrogen storage alloy surface has the advantages of high reaction speed, small environmental pollution, convenient operation, low cost, etc.
Description
Technical field
What the present invention relates to is a kind of surface treatment method of material, specifically a kind of method of chemical copper plating on hydregen storage alloy surface.
Background technology
The MH/Ni battery is a kind of high energy free of contamination " green energy resource ", has excellent specific properties such as specific energy height, specific power height, life-span length and security are good, is that the ideal of the used for electric vehicle power type energy is selected.Hydrogen storage alloy is the principal element that influences battery performance and cycle life as MH/Ni battery negative material commonly used, also is the major reason that limit cell performance improves.In order to improve the performance of hydrogen storage alloy, usually adopt the method that alloy surface is coated copper, as surface acidity copper facing, referring to F.Feng etc. at 2003 167 volumes of international publication " Surface and Coating Technology " 263-268 publish thesis " Improved performance of a metal hydride electrode for nickel/metalhydride batteries through copper-coating ", alkaline copper plating is referring to magnifying to waiting at " power technology " 1998 22 volumes 3 phase 111-114 publish thesis " about several problems of the surperficial copper-clad technology of hydrogen storage alloy ".But these methods all exist cost height, complex process, long flow path, toxicity greatly, problem such as not easy to operate and control.Therefore, require further improvement the copper coating method, improve copper-plated time and efficient.
Summary of the invention
It is short to the purpose of this invention is to provide a kind of operating time, copper facing efficient height, and cost is low, and flow process is simple and can reduce the method for chemical copper plating on hydregen storage alloy surface of environmental pollution.
The object of the present invention is achieved like this: with the screening of standard sub-sieve, choose granularity uniform hydrogen storing alloy powder between 300～400 orders; With 0.9375g～4.6875g CuSO
45H
2O is dissolved in the 200ml distilled water, adds the HF of 0.10～0.25mL, and controlled temperature is at 30～40 ℃, and the control stirring velocity is 600～800rpm; The 12g hydrogen storing alloy powder is added in the reactor, and the control stirring velocity is 600～800rpm, treats behind solution PH value stabilization to 3.3～3.5 stopped reaction immediately; Clean hydrogen storage alloy repeatedly with distilled water and dehydrated alcohol, vacuum drying obtains product.Wherein, used hydrogen storing alloy powder is AB
5Or AB
2Type.
The invention has the advantages that: 1, speed of response is fast, and whole copper facing whole process is approximately 1～2 minute.2, copper facing efficient height after reaction finishes, does not have cupric ion again and exists in the solution, illustrate that copper facing efficient is near 100%.3, environmental pollution is little, does not have toxic substance in the reaction process, and reaction finishes, and no cupric ion exists in the solution of back.4, easy to operate, entire reaction course only need be carried out under stirring condition, does not need to control complicated parameter, and it is very easy to operate.5, cost is low, and whole process does not need expensive raw material, does not have big energy expenditure, does not need big equipment input.
Embodiment
For example the present invention is done in more detail below and describes:
With the screening of standard sub-sieve, choose granularity uniform AB between 300～400 orders
5Type (La13.25wt.%, Ni 69.37wt.%, Co 7.14wt.%, Mn 4.86wt.%, Ce 3.15wt.%) hydrogen storing alloy powder; With 0.9375g CuSO
45H
2O is dissolved in the 200ml distilled water, adds the HF of 0.10mL, and controlled temperature is at 30 ℃, and the control stirring velocity is 600rpm; The 12g hydrogen storing alloy powder is added in the reactor, and the control stirring velocity is 600rpm, treats solution PH value stabilization to 3.3 stopped reaction immediately; Clean hydrogen storage alloy repeatedly with distilled water and dehydrated alcohol, vacuum drying obtains product.
With the screening of standard sub-sieve, choose granularity uniform AB between 300～400 orders
5Type (La13.25wt.%, Ni 69.37wt.%, Co 7.14wt.%, Mn 4.86wt.%, Ce 3.15wt.%) hydrogen storing alloy powder; With 4.6875g CuSO
45H
2O is dissolved in the 200ml distilled water, adds the HF of 0.20mL, and controlled temperature is at 35 ℃, and the control stirring velocity is 600rpm; The 12g hydrogen storing alloy powder is added in the reactor, and the control stirring velocity is 600rpm, treats solution PH value stabilization to 3.4 stopped reaction immediately; Clean hydrogen storage alloy repeatedly with distilled water and dehydrated alcohol, vacuum drying obtains product.
With the screening of standard sub-sieve, choose granularity uniform AB between 300～400 orders
5Type (La13.25wt.%, Ni 69.37wt.%, Co 7.14wt.%, Mn 4.86wt.%, Ce 3.15wt.%) hydrogen storing alloy powder; With 2.6875g CuSO
45H
2O is dissolved in the 200ml distilled water, adds the HF of 0.25mL, and controlled temperature is at 40 ℃, and the control stirring velocity is that 600rpm adds the 12g hydrogen storing alloy powder in the reactor, and the control stirring velocity is 600rpm, treats solution PH value stabilization to 3.5 stopped reaction immediately; Clean hydrogen storage alloy repeatedly with distilled water and dehydrated alcohol, vacuum drying obtains product.
The invention has the advantages that: 1, speed of response is fast, and whole copper facing whole process is approximately 1～2 minute.2, copper facing efficient height after reaction finishes, does not have cupric ion again and exists in the solution, illustrate that copper facing efficient is near 100%.3, environmental pollution is little, does not have toxic substance in the reaction process, and reaction finishes, and no cupric ion exists in the solution of back.4, easy to operate, entire reaction course only need be carried out under stirring condition, does not need to control complicated parameter, and it is very easy to operate.5, cost is low, and whole process does not need expensive raw material, does not have big energy expenditure, does not need big equipment input.
The applied scope of the present invention is: AB
5Or AB
2The type hydrogen storage alloy powder.
Claims (2)
1. method of chemical copper plating on hydregen storage alloy surface is characterized in that: this method is with the screening of standard sub-sieve, chooses granularity hydrogen storing alloy powder uniformly between 300～400 orders; With 0.9375g～4.6875gCuSO
45H
2O is dissolved in the 200ml distilled water, adds the HF of 0.10～0.25mL, and controlled temperature stirs at 30～40 ℃; The 12g hydrogen storing alloy powder is added in the reactor, stir, treat behind solution PH value stabilization to 3.3～3.5 stopped reaction immediately; Clean hydrogen storage alloy repeatedly with distilled water and dehydrated alcohol, vacuum drying obtains product; Wherein, hydrogen storing alloy powder is AB
5Or AB
2Type.
2. method of chemical copper plating on hydregen storage alloy surface according to claim 1, it is characterized in that: stirring velocity is controlled at 600～800rpm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101273384A CN100362130C (en) | 2005-12-15 | 2005-12-15 | Method of chemical copper plating on hydregen storage alloy surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101273384A CN100362130C (en) | 2005-12-15 | 2005-12-15 | Method of chemical copper plating on hydregen storage alloy surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1786267A CN1786267A (en) | 2006-06-14 |
| CN100362130C true CN100362130C (en) | 2008-01-16 |
Family
ID=36783879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101273384A Expired - Fee Related CN100362130C (en) | 2005-12-15 | 2005-12-15 | Method of chemical copper plating on hydregen storage alloy surface |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103203452A (en) * | 2013-03-28 | 2013-07-17 | 桂林理工大学 | Method of surface copper plating modification for AB3 type hydrogen storage alloy |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1119791A (en) * | 1994-09-30 | 1996-04-03 | 北京科技大学 | Cheap rare-earth hydrogen storage electrode alloy containing copper and low cobalt |
| JPH1170942A (en) * | 1997-08-28 | 1999-03-16 | Showa Alum Corp | Sealed container with internal partition |
| CN1316537A (en) * | 2001-03-23 | 2001-10-10 | 天津南开戈德集团有限公司 | Mg-base hydrogen-bearing alloy material and its preparing process and application |
| KR20010090630A (en) * | 2000-04-10 | 2001-10-19 | 김민수 | The method of hydrogen storck useing lanthanum-nickel alloy |
| CN1424433A (en) * | 2003-01-14 | 2003-06-18 | 南开大学 | Chemical coppering process for non-aqueous system hydrogen storage alloy powder |
| CN1601172A (en) * | 2004-10-16 | 2005-03-30 | 浙江大学 | Storage device for hydrogen |
-
2005
- 2005-12-15 CN CNB2005101273384A patent/CN100362130C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1119791A (en) * | 1994-09-30 | 1996-04-03 | 北京科技大学 | Cheap rare-earth hydrogen storage electrode alloy containing copper and low cobalt |
| JPH1170942A (en) * | 1997-08-28 | 1999-03-16 | Showa Alum Corp | Sealed container with internal partition |
| KR20010090630A (en) * | 2000-04-10 | 2001-10-19 | 김민수 | The method of hydrogen storck useing lanthanum-nickel alloy |
| CN1316537A (en) * | 2001-03-23 | 2001-10-10 | 天津南开戈德集团有限公司 | Mg-base hydrogen-bearing alloy material and its preparing process and application |
| CN1424433A (en) * | 2003-01-14 | 2003-06-18 | 南开大学 | Chemical coppering process for non-aqueous system hydrogen storage alloy powder |
| CN1601172A (en) * | 2004-10-16 | 2005-03-30 | 浙江大学 | Storage device for hydrogen |
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|---|---|
| CN1786267A (en) | 2006-06-14 |
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Granted publication date: 20080116 Termination date: 20101215 |