CN1686829A - Method for producing spherical nickel hydroxide - Google Patents
Method for producing spherical nickel hydroxide Download PDFInfo
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- CN1686829A CN1686829A CN 200510017529 CN200510017529A CN1686829A CN 1686829 A CN1686829 A CN 1686829A CN 200510017529 CN200510017529 CN 200510017529 CN 200510017529 A CN200510017529 A CN 200510017529A CN 1686829 A CN1686829 A CN 1686829A
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Abstract
The production method of spherical nickel hydroxide includes the following steps: placing mixed salt solution containing reaction solution nickel sulfate, cobalt sulfate and zinc sulfate into a reactor, said reaction mixed salt solution also contains at least one of aluminium sulfate, iron sulfate and manganese sulfate, the molar concentration of the above-mentioned mixed salt solution is 2.0-2.3 mol/L in which the concentration of cobalt sulfate is 0.02-0.1 mol/L, concentration of zinc sulfate is 0.05-0.3 mol/L and the concentration of aluminium sulfate or iron sulfate or manganese sulfate is 0.1-0.5 mol/L, and the rest is nickel sulfate solution, in the reactor the concentration of sodium hydroxide solution is 5-10 mol/L, the concentration of ammonia water is 5-8 mol/L, negulating pH value to 9-14, stirring speed is 20-50 rpm and reaction temperature is 30-80 deg.C, so that it can obtain the invented product.
Description
Technical field:
The device that to the present invention relates to a kind of direct transformation chemical energy be electric energy, particularly a kind of Ni-H cell electrode is with the production method of ball-shape nickel hydroxide.
Background technology:
The positive electrode active materials of existing nickel hydroxide battery is a β type ball-shape nickel hydroxide, charge and discharge the variation of experiencing β type nickel hydroxide-β type hydroxyl oxygen flower nickel in the process at battery, in this process, has only a transfer transport, and the life-span has only about 300 times, can not satisfy the high-power long-life requirement of used for electric vehicle Ni-H cell.The special permission of day disclosure is special opens the manufacture method that flat 9-283135 and 8-119636 disclose nickel hydroxide, the ball-shape nickel hydroxide of being made, its product ray diffraction (XRD) curve (001) face half height is at the 0.6-0.9 degree, can only be fit to little electric current (0.2 multiplying power) discharges and recharges, and the life-span is shorter, have only about 300 times, can not satisfy the high-power long-life requirement of used for electric vehicle Ni-H cell.
Summary of the invention:
The technical issues that need to address of the present invention provide a kind of production method of ball-shape nickel hydroxide, the Ni-H cell that the ball-shape nickel hydroxide positive electrode active materials that this method is produced is made, it discharges and recharges the life-span and can reach more than 1000 times and charging or discharging current reaches more than 3 multiplying powers, is fit to used for electric vehicle.Technical scheme of the present invention is, a kind of production method of ball-shape nickel hydroxide, include the reaction soln single nickel salt, rose vitriol, the mixing salt solution of zinc sulfate places reactor, it is characterized in that: also have in the following reacting salt solution at least a in the reaction mixing salt solution: Tai-Ace S 150, ferric sulfate, manganous sulfate, the volumetric molar concentration of above-mentioned mixing salt solution is 2.0-2.3mol/L, wherein the concentration of rose vitriol is 0.02-0.1mol/L, the sulfuric acid zinc concentration is 0.05-0.3mol/L, the concentration of Tai-Ace S 150 or ferric sulfate or manganous sulfate is 0.1-0.5mol/L, all the other are nickel sulfate solution, the concentration of sodium hydroxide solution is 5-10mol/L in the reactor, ammonia concn is 5-8mol/L, the adjustment pH value is 9-14, stirring velocity is 20-50 rev/min, and temperature of reaction is 30-80 ℃, and reaction obtains ball-shape nickel hydroxide of the present invention.。The present invention has been owing to added a kind of in aluminium, iron, the manganese or two kinds mixture in nickel salt solution, thereby has the remarkable advantage in big (more than 3 multiplying powers) life-span of charging and discharging currents long (more than 1000 times) compared with the prior art.
Embodiment:
The present invention has following examples:
Embodiment 1:
Reaction solution is a single nickel salt, rose vitriol, the mixing salt solution of zinc sulfate and Tai-Ace S 150, with above-mentioned cobalt sulfate solution (concentration is 0.1mol/L), solution of zinc sulfate (concentration is 0.3mol/L) and alum liquor (concentration is 0.5mol/L), nickel sulfate solution (concentration is 1.4mol/L), the mixing salt solution of reaction solution (concentration is 2.3mol/L), sodium hydroxide solution (concentration is 5mol/L), ammoniacal liquor (concentration is 8mol/L) is put into reactor, transferring pH value is 9, temperature of reaction is 70 ± 2 ℃, the control stirring velocity is 20 rev/mins, the reaction back generates the Ni (OH) 2 that aluminium replaces, and its chemical constitution is: Ni (1-2x) Al2x (OH) 2 (CO3) x.nH2O (10%＜x＜15%).
Embodiment 2.:
Reaction solution is the mixing salt solution of single nickel salt, rose vitriol, zinc sulfate and ferric sulfate, mixing salt solution (concentration is 2.0mol/L), sodium hydroxide solution (concentration is 10mol/L), the ammoniacal liquor (concentration is 5mol/L) of above-mentioned cobalt sulfate solution (concentration is 0.02mol/L), solution of zinc sulfate (concentration is 0.05mol/L) and ferrum sulfuricum oxydatum solutum (concentration is 0.1mol/L), nickel sulfate solution (concentration is 1.83mol/L), reaction solution are put into reactor, transferring pH value is 11, and temperature of reaction is.35 ± 2 ℃, the control stirring velocity is 30 rev/mins, and the reaction back generates the Ni (OH) 2 that aluminium replaces, and its chemical constitution is: Ni (1-2x) Al2x (OH) 2 (CO3) x.nH2O (10%＜x＜15%).
Embodiment 3:
Reaction solution is a single nickel salt, rose vitriol, the mixing salt solution of zinc sulfate and manganous sulfate, with above-mentioned cobalt sulfate solution (concentration is 0.06mol/L), solution of zinc sulfate (concentration is 0.15mol/L) and manganese sulfate solution (concentration is 0.3mol/L), nickel sulfate solution (concentration is 1.59mol/L), the mixing salt solution of reaction solution (concentration is 2.1mol/L), sodium hydroxide solution (concentration is 5mol/L), (concentration is that 6mol/L puts into reactor to ammoniacal liquor, transferring pH value is 14, temperature of reaction is 50 ± 2 ℃, the control stirring velocity is 50 rev/mins, the reaction back generates the Ni (OH) 2 that aluminium replaces, its chemical constitution is:: Ni (1-2x) Al2x (OH) 2 (CO3) x.nH2O (10%＜x＜15%), with the Ni-H cell sample and the embodiment 1 of conventional β-Ni (OH) 2 making, 2,3 battery samples of making record 001 wide 2 θ and cycle life (inferior) as following table.
| Sample | (001) face halfwidth 2 θ | Cycle life (inferior) |
| Conventional β-Ni (OH) 2 | ????0.78 | ????306 |
| Embodiment 1 | ????0.3 | ????1086 |
| Embodiment 2 | ????0.25 | ????1090 |
| Embodiment 3 | ????0.28 | ????1200 |
As can be seen from the table, the big 0.1-0.5 of nickel hydroxide X-ray diffraction of the present invention (XRD) curve (001) face halfwidth, cycle life is fit to the positive electrode active materials of used for electric vehicle Ni-H cell all more than 1000 times very much.
Claims (1)
1, a kind of production method of ball-shape nickel hydroxide, include the reaction soln single nickel salt, rose vitriol, the mixing salt solution of zinc sulfate places reactor, it is characterized in that: also have in the following reacting salt solution at least a in the reaction mixing salt solution: Tai-Ace S 150, ferric sulfate, manganous sulfate, the volumetric molar concentration of above-mentioned mixing salt solution is 2.0-2.3mol/L, wherein the concentration of rose vitriol is 0.02-0.1mol/L, the sulfuric acid zinc concentration is 0.05-0.3mol/L, the concentration of Tai-Ace S 150 or ferric sulfate or manganous sulfate is 0.1-0.5mol/L, all the other are nickel sulfate solution, the concentration of sodium hydroxide solution is 5-10mol/L in the reactor, ammonia concn is 5-8mol/L, the adjustment pH value is 9-14, stirring velocity is 20-50 rev/min, temperature of reaction is 30-80 ℃, and reaction obtains ball-shape nickel hydroxide of the present invention.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510017529 CN1686829A (en) | 2005-04-20 | 2005-04-20 | Method for producing spherical nickel hydroxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510017529 CN1686829A (en) | 2005-04-20 | 2005-04-20 | Method for producing spherical nickel hydroxide |
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| CN1686829A true CN1686829A (en) | 2005-10-26 |
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| CN 200510017529 Pending CN1686829A (en) | 2005-04-20 | 2005-04-20 | Method for producing spherical nickel hydroxide |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102664266A (en) * | 2011-11-25 | 2012-09-12 | 安徽亚兰德新能源材料股份有限公司 | Method for preparing spherical nickel hydroxide by doping zinc, manganese and aluminum |
| CN106207115A (en) * | 2016-07-20 | 2016-12-07 | 华中科技大学 | A kind of preparation method of nickel hydroxide electrode material |
-
2005
- 2005-04-20 CN CN 200510017529 patent/CN1686829A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102664266A (en) * | 2011-11-25 | 2012-09-12 | 安徽亚兰德新能源材料股份有限公司 | Method for preparing spherical nickel hydroxide by doping zinc, manganese and aluminum |
| CN102664266B (en) * | 2011-11-25 | 2015-04-22 | 安徽亚兰德新能源材料股份有限公司 | Method for preparing spherical nickel hydroxide by doping zinc, manganese and aluminum |
| CN106207115A (en) * | 2016-07-20 | 2016-12-07 | 华中科技大学 | A kind of preparation method of nickel hydroxide electrode material |
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