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Zinc cathode active substance of zinc-nickel secondary battery and preparation method and application method thereof

A secondary battery and active material technology, applied to battery electrodes, alkaline battery electrodes, circuits, etc., to achieve the effects of weakening ohmic polarization, long cycle life, and inhibiting self-corrosion

Inactive Publication Date: 2011-05-04
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these methods are all surface-treated ZnO materials, and their performance largely depends on the electrical properties of the ZnO body, and there are certain problems in the large-scale preparation process.

Method used

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  • Zinc cathode active substance of zinc-nickel secondary battery and preparation method and application method thereof
  • Zinc cathode active substance of zinc-nickel secondary battery and preparation method and application method thereof
  • Zinc cathode active substance of zinc-nickel secondary battery and preparation method and application method thereof

Examples

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Effect test

Embodiment 1

[0029] 1.5 parts by weight of analytically pure In 2 o 3 Be dissolved in the 12mol / L concentrated hydrochloric acid of 50 weight parts, the analytical pure ZnCl of 98 weight parts 2 Dissolve in 200 parts by weight of deionized water, and add 0.5 parts by weight of sodium dodecylbenzenesulfonate, fully mix the above two solutions and dilute 10 times with deionized water, then add ammonia water under strong mechanical stirring to adjust The pH of the solution is 7.0, continue to stir for 15 minutes, age for 1 hour, and ultrasonically disperse for 10 minutes, then transfer to a hydrothermal reaction kettle, put the reaction kettle in an oven at 180°C for 4 hours, and finally filter and wash the precipitate, and dry it at 60 Dry at ℃ for 4 hours, and calcined at 500℃ for 2 hours to obtain indium-doped zinc oxide. Put 0.1g sodium dodecylbenzenesulfonate and 0.1g hexadecyltrimethylammonium bromide in a beaker, add 30g distilled water, place the beaker on an electric heating stirre...

Embodiment 2

[0031] 5 parts by weight of analytically pure In 2 o 3 Be dissolved in the 12mol / L concentrated hydrochloric acid of 50 weight parts, the analytical pure ZnCl of 94.5 weight parts 2 Dissolve in 200 parts by weight of deionized water, and add 0.5 parts by weight of sodium dodecylbenzenesulfonate, fully mix the above two solutions and dilute 10 times with deionized water, then add ammonia water under strong mechanical stirring to adjust The pH of the solution is 7.0, continue to stir for 15 minutes, age for 1 hour, and ultrasonically disperse for 10 minutes, then transfer to a hydrothermal reaction kettle, put the reaction kettle in an oven at 180°C for 4 hours, and finally filter and wash the precipitate, and dry it at 60 Dry at ℃ for 4 hours, and calcined at 500℃ for 2 hours to obtain indium-doped zinc oxide. Put 0.1g sodium dodecylbenzenesulfonate and 0.1g hexadecyltrimethylammonium bromide in a beaker, add 30g distilled water, place the beaker on an electric heating stirre...

Embodiment 3

[0033] 7 parts by weight of analytically pure In 2 o 3 Be dissolved in the 12mol / L concentrated hydrochloric acid of 50 weight parts, the analytical pure ZnCl of 92.5 weight parts 2Dissolve in 200 parts by weight of deionized water, and add 0.5 parts by weight of sodium dodecylbenzenesulfonate, fully mix the above two solutions and dilute 10 times with deionized water, then add ammonia water under strong mechanical stirring to adjust The pH of the solution is 7.0, continue to stir for 15 minutes, age for 1 hour, and ultrasonically disperse for 10 minutes, then transfer to a hydrothermal reaction kettle, put the reaction kettle in an oven at 180°C for 4 hours, and finally filter and wash the precipitate, and dry it at 60 Dry at ℃ for 4 hours, and calcined at 500℃ for 2 hours to obtain indium-doped zinc oxide. Put 0.1g sodium dodecylbenzenesulfonate and 0.1g hexadecyltrimethylammonium bromide in a beaker, add 30g distilled water, place the beaker on an electric heating stirrer...

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Abstract

The invention discloses a zinc cathode active substance of a zinc-nickel secondary battery and a preparation method and application method thereof. The preparation method of the active substance comprises the following steps: (1) dissolving In2O3 in concentrated hydrochloric acid; (2) dissolving ZnCl2 in deionized water and adding dispersant; (3) mixing the two solutions and diluting with deionized water; (4) adding ammonia water dropwise into the mixed dilute solution to regulate pH while strongly stirring mechanically, then stirring and aging; (5) performing ultrasonic dispersion on the aged liquid, transferring to a hydro-thermal reaction kettle and putting the reaction kettle in an oven for heat preservation; and (6) filtering, washing and drying the precipitate, and calcining at certain temperature to obtain indium-doped zinc oxide. The active substance can reduce the deformation of the zinc cathode, suppress the dissolution of the active substance of the zinc cathode and prolong the cyclic service life of the zinc-nickel secondary battery.

Description

technical field [0001] The invention relates to a zinc negative electrode active material of a zinc-nickel secondary battery and a preparation and application method thereof. Background technique [0002] Alkaline zinc-nickel secondary batteries have attracted people's attention due to their advantages of large specific energy, high specific power, stable working voltage, rich and non-toxic raw materials, etc. These advantages also make zinc-nickel secondary batteries a powerful candidate for a new generation of green power batteries. competitor. However, this type of battery has the defect of short cycle life, which has caused considerable resistance to its practical application. The main reason for the short life of zinc-nickel secondary batteries is that the zinc electrode has problems such as electrode deformation, passivation, zinc dendrites, and self-corrosion during the cycle. In order to solve these problems, people have done a lot of research. Ca(OH) 2 It is gen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/26H01M4/62H01M4/42H01M4/24
CPCY02E60/10
Inventor 杨占红曾冬青王升威倪霞谭志勇温润娟陈红燕
Owner CENT SOUTH UNIV
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