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Preparation method and application method for zinc cathode active material of zinc-nickel secondary battery

A secondary battery, active material technology, applied in battery electrodes, alkaline battery electrodes, circuits, etc., can solve problems such as performance dependence, achieve the effects of slowing migration, adjustable material composition, and resisting impact

Inactive Publication Date: 2013-01-09
DONGTAI TIANXIANG NEW ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the performance of these modified materials largely depends on the electrical properties of the ZnO bulk, and there are certain problems in their large-scale production.

Method used

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  • Preparation method and application method for zinc cathode active material of zinc-nickel secondary battery
  • Preparation method and application method for zinc cathode active material of zinc-nickel secondary battery
  • Preparation method and application method for zinc cathode active material of zinc-nickel secondary battery

Examples

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Embodiment 1

[0027] 1 part by weight of analytically pure Cu(CH 3 COO) 2 , 100 parts by weight of analytically pure Zn(CH 3 COO) 2 15 parts by weight of analytically pure urea are dissolved in 300 parts by weight of deionized water to form a transparent mixed solution. The above-mentioned mixed solution was ultrasonically dispersed for 10 minutes, and then transferred to a hydrothermal reaction kettle, and the reaction kettle was placed in an oven at 300° C. for 5.0 hours. Finally, the obtained precipitate was filtered, washed, dried at 80° C. for 3.0 h, and calcined at 600° C. for 2.0 h to obtain Cu-doped ZnO. Put 0.1g sodium dodecylbenzenesulfonate and 0.1g hexadecyltrimethylammonium bromide in a beaker, add 35g distilled water, place the beaker on an electric heating stirrer and stir slowly until the dodecyl trimethylammonium bromide After sodium phenylsulfonate and cetyltrimethylammonium bromide are completely dissolved, add 95g of Cu-doped ZnO and other zinc compounds, 3.5g of gra...

Embodiment 2

[0029] 2 parts by weight of analytically pure Cu(CH 3 COO) 2 , 125 parts by weight of analytically pure Zn(CH 3 COO) 2 25 parts by weight of analytically pure urea are dissolved in 315 parts by weight of deionized water to form a transparent mixed solution. The above-mentioned mixed solution was ultrasonically dispersed for 10 minutes, and then transferred to a hydrothermal reaction kettle, and the reaction kettle was placed in an oven at 300° C. for 5.0 hours. Finally, the obtained precipitate was filtered, washed, dried at 80° C. for 3.0 h, and calcined at 600° C. for 2.0 h to obtain Cu-doped ZnO. Put 0.1g sodium dodecylbenzenesulfonate and 0.1g hexadecyltrimethylammonium bromide in a beaker, add 35g distilled water, place the beaker on an electric heating stirrer and stir slowly until the dodecyl trimethylammonium bromide After sodium phenylsulfonate and cetyltrimethylammonium bromide are completely dissolved, add 95g of Cu-doped ZnO and other zinc compounds, 3.5g of gr...

Embodiment 3

[0031] 4 parts by weight of analytically pure Cu(CH 3 COO) 2 , 125 parts by weight of analytically pure Zn(CH 3 COO) 225 parts by weight of analytically pure urea are dissolved in 315 parts by weight of deionized water to form a transparent mixed solution. The above-mentioned mixed solution was ultrasonically dispersed for 10 minutes, and then transferred to a hydrothermal reaction kettle, and the reaction kettle was placed in an oven at 300° C. for 5.0 hours. Finally, the obtained precipitate was filtered, washed, dried at 80° C. for 3.0 h, and calcined at 600° C. for 2.0 h to obtain Cu-doped ZnO. Put 0.1g sodium dodecylbenzenesulfonate and 0.1g hexadecyltrimethylammonium bromide in a beaker, add 35g distilled water, place the beaker on an electric heating stirrer and stir slowly until the dodecyl trimethylammonium bromide After sodium phenylsulfonate and cetyltrimethylammonium bromide are completely dissolved, add 95g of Cu-doped ZnO and other zinc compounds, 3.5g of gra...

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Abstract

The invention discloses a preparation method and an application method for a zinc cathode active material of a zinc-nickel secondary battery. The preparation method for the active material includes the steps: (1) dissolving Cu (CH3COO) 2, Zn (CH3COO) 2 and urea in deionized water to form transparent mixed liquor; (2) ultrasonically dispersing the mixed liquor, transferring the mixed liquor into a hydro-thermal reactor and placing the reactor into a drying oven for heat preservation; and (3) filtering, washing and drying deposits and calcining the deposits at a certain temperature to obtain Cu doped ZnO. By the aid of the active material, zinc cathode deformation can be decreased, dissolution of the zinc cathode active material is suppressed, and accordingly, the cycle life of the zinc-nickel secondary battery is prolonged.

Description

technical field [0001] The invention relates to the preparation and application method of a zinc negative electrode active material of a zinc-nickel secondary battery. Background technique [0002] Alkaline zinc-nickel secondary batteries have many advantages such as high and obvious discharge platform, large specific energy, high specific power, good high-current discharge performance, cheap and non-toxic raw materials, etc. Under the support of the new national energy strategy, these advantages of zinc-nickel batteries also make this battery system gradually become a leader in the field of green and environmentally friendly power secondary batteries. Compared with other battery systems, the cost of large-scale application of zinc-nickel secondary batteries is relatively low. However, zinc-nickel secondary batteries have fatal defects such as short cycle life, so there are many obstacles to their large-scale promotion. Current research has shown that the main reason for t...

Claims

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Application Information

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IPC IPC(8): H01M4/26H01M4/48
CPCY02E60/124Y02E60/10
Inventor 朱兆祥杨占红
Owner DONGTAI TIANXIANG NEW ENERGY
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