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Nickel-zinc battery

A nickel-zinc battery and zinc negative charge technology, which is applied in the direction of nickel storage battery, alkaline storage battery, aqueous electrolyte, etc., can solve the problems of nickel-zinc battery polluting the environment and failing to meet the requirements of the power supply field, and achieve low cost and reduce zinc dendrites formation, elimination of reduced effects

Pending Publication Date: 2020-04-21
陈发生
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the traditional nickel-zinc battery, due to the disadvantages of the zinc negative electrode of the battery, such as dissolution deformation, passivation, hydrogen evolution, and zinc dendrite formation, the charge-discharge cycle of the nickel-zinc battery is only tens to more than 100 times, which cannot meet the requirements of various requirements. Power Field Requirements
At the same time, the existing nickel-zinc batteries also have the problem of polluting the environment

Method used

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Embodiment Construction

[0027] The zinc-nickel battery is an alkaline accumulator composed of a zinc negative electrode, a nickel positive electrode, an electrolyte, a diaphragm and a container. Its preparation process is as follows figure 1 shown.

[0028] The material weight ratio of the zinc negative electrode slurry is selected from one of the following formulas:

[0029] Formula 1: zinc oxide 70%-95%; graphene 0.1%-5%; magnesium oxide 0.1%-5%; aluminum oxide 0.01%-1%; bismuth oxide 0.01%-5%; indium oxide 0.01%-1% ;Lead oxide 0.%~1%; Sodium phosphate 0%~2%; Sodium borate 0%~5%; PTFE0.1%~6%; CMC0.1%~2%; HEC0.1%~2%; Appropriate amount of solution.

[0030] Formula 2: zinc oxide 80-95%; zinc powder 0.1%-10%; calcium hydroxide 0.1%-20%; bismuth oxide 0.01%-5%; indium oxide 0.01%-1%; carbon black 0.1%-5% ; Lead oxide 0-1%; PTFE 0.1%-6%; CMC 0.1%-2%; HEC 0.1%-2%; appropriate amount of solution.

[0031] Formula 3: zinc oxide 50%~95%; calcium zincate 0%~50%; magnesium oxide 0.1%~5%; bismuth oxide 0...

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Abstract

The invention discloses a nickel-zinc battery. An electrolyte is composed of oxyhydrogen, a corrosion inhibitor, a surface active additive, zinc oxide and deionized water, and the mass ratio is as follows: 15 to 35 percent of hydroxide alkali, 0.1 to 10 percent of corrosion inhibitor, 0.01 to 5 percent of surface active additive, a proper amount of zinc oxide until the saturate state and the balance of deionized water. The defects of the existing zinc-nickel battery are overcome, and dissolution deformation of an electrode and formation, passivation and hydrogen evolution of zinc dendrites arereduced or relieved; mercuride, cadmium compound, chromate and the like which severely pollute the environment are not contained; the prepared zinc-nickel battery is high in mass specific energy, high in output power, small in internal resistance and long in service life. The cycle life of charging and discharging of the experimental battery at room temperature can reach 400-600 times. The nickel-zinc battery is rich in raw materials, low in cost, environment-friendly, and convenient and safe to use. Therefore, requirements of various power supply fields are met, and the nickel-zinc battery is suitable for various vehicles, electric equipment, standby power supply energy storage and the like.

Description

technical field [0001] The invention relates to a nickel-zinc battery. Background technique [0002] A nickel-zinc battery is an alkaline battery composed of a zinc negative electrode, a nickel positive electrode, an electrolyte (potassium hydroxide solution), a diaphragm, and a container. Zinc is used as the negative electrode and a general manufacturing process technology manufacturing method similar to nickel-metal hydride batteries and silver-zinc batteries is adopted. [0003] In the traditional nickel-zinc battery, due to the disadvantages of the zinc negative electrode of the battery, such as dissolution deformation, passivation, hydrogen evolution, and zinc dendrite formation, the charge-discharge cycle of the nickel-zinc battery is only tens to more than 100 times, which cannot meet the requirements of various requirements. power domain requirements. At the same time, the existing nickel-zinc battery also has the problem of polluting the environment. Contents of...

Claims

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Application Information

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IPC IPC(8): H01M10/30H01M10/26
CPCH01M10/30H01M10/26H01M2300/0014Y02E60/10
Inventor 陈发生
Owner 陈发生
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