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Preparation method of negative electrode material sodium chloride of sodium nickel battery

A negative electrode material, sodium-nickel battery technology, applied in battery electrodes, circuits, electrical components, etc., can solve the problems of low negative electrode voltage, poor electrical conductivity, high volatility, etc., to reduce volatility, improve voltage, ratio, etc. High volume effect

Inactive Publication Date: 2013-04-24
宁夏绿聚能源股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, sodium-nickel batteries use sodium and nickel as cathode and anode respectively, and sodium is used as the negative electrode material. Since high-purity sodium is directly used in sodium-nickel batteries, the disadvantages are that the negative electrode voltage is not high; the conductivity is not good; volatility is large; water absorption Disadvantages such as strong sex
There is currently no way to overcome this defect

Method used

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Examples

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Embodiment Construction

[0010] A method for preparing sodium chloride, the negative electrode material of a sodium-nickel battery, is characterized in that: the method is to mix sodium with a content >99% and graphite at a weight ratio of 100:12, and grind them into particles of 1000 mesh to 1200 mesh , and then remove impurities, dehydrate and dry, and package in turn.

[0011] Above-mentioned dehydration drying is to carry out thorough dehydration airtight and air-insulated encapsulation with drier.

[0012] Make sure that the inside of the battery is dry when injecting it into the battery during use, and ensure that the prepared material does not develop in the air and be damp when injecting it into the battery.

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Abstract

The invention relates to a preparation method of a negative electrode material of a battery, and particularly relates to a preparation method of a negative electrode material sodium chloride of a sodium nickel battery. The method comprises the steps of mixing sodium the content of which is greater than 99% and graphite according to weight ratio of 100 to 12, grinding the mixture to be grains of 1000 meshes to 1200 meshes, and then successively removing impurities, dehydrating and drying and packaging. The preparation method provided by the invention has the advantages of being unique, and being capable of reducing the volatility and water absorption, so as to increase the voltage and the current density of the battery and prolong the service life of the battery.

Description

technical field [0001] The invention relates to a preparation method of a negative electrode material of a battery, in particular to a preparation method of sodium chloride, a negative electrode material of a sodium-nickel battery. Background technique [0002] At present, sodium-nickel batteries use sodium and nickel as cathode and anode respectively, and sodium is used as the negative electrode material. Since high-purity sodium is directly used in sodium-nickel batteries, the disadvantages are that the negative electrode voltage is not high; the conductivity is not good; volatility is large; water absorption Strong and other shortcomings. There is currently no method to overcome this deficiency. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies in the prior art, to provide a unique method, reduce volatility, water absorption, to improve the voltage of the battery, current density, prolong the service life of a negat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/58H01M4/62
CPCY02E60/12Y02E60/10
Inventor 余正涛
Owner 宁夏绿聚能源股份有限公司
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