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A positive electrode container for a sodium-sulfur battery

A sodium-sulfur battery and container technology, applied in the field of energy storage, can solve problems such as unreported related technologies, and achieve the effects of abundant raw material sources, avoiding high-input and high-cost thermal spraying processes, and low prices

Active Publication Date: 2016-02-03
DONGFANG ELECTRIC CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention adopts aluminum-carbon composite material protective inner lining to achieve the above-mentioned purpose, and the relevant technology has not been reported

Method used

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  • A positive electrode container for a sodium-sulfur battery
  • A positive electrode container for a sodium-sulfur battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Such as figure 1 As shown, a positive electrode container of a sodium-sulfur battery includes a container shell 1 made of metal, the shell 1 is made of aluminum alloy, and a continuous, uniform and seamless aluminum-carbon composite lining 2 is prepared on the inner wall of the container shell , the aluminum-carbon composite material contains 68wt.% metal aluminum powder, 32wt.% carbon material, including 30wt.% graphite powder (ie carbon powder) and 2wt.% binder carbon. The preparation method is: take an aluminum alloy cylinder with one end open and one end closed (the specific size depends on the battery capacity), the inner wall of the aluminum alloy cylinder is first cleaned and sandblasted, and the metal aluminum powder, graphite powder and binder are mixed. After uniformity, add the rubber mold tooling in the cylinder, and then press the powder on the inner wall of the cylinder by the isostatic internal pressure method. After the pressing is completed, bake the sa...

Embodiment 2

[0024] A positive electrode container for a sodium-sulfur battery, comprising a container shell 1 made of metal, the shell 1 is made of low-carbon steel, and a continuous, uniform and seamless aluminum-carbon composite lining 2 is prepared on the inner wall of the container shell, the The aluminum-carbon composite material contains 70wt.% metal aluminum powder, 30wt.% carbon material, including 15wt.% graphite powder (ie carbon powder) and 15wt.% binder carbon. The preparation method is: take a low-carbon steel cylinder with one end open and one end closed (the specific size depends on the battery capacity), the inner wall of the low-carbon steel cylinder is first cleaned and sandblasted, and the metal aluminum powder, carbon black and combined Mix the agent evenly, and add absolute ethanol as a diluent, spray the above mixture on the inner wall of the low carbon steel cylinder, dry the sample at 60°C after spraying, then bake the sample at 200°C for 4 hours, and finally inert ...

Embodiment 3

[0026] A positive electrode container for a sodium-sulfur battery, comprising a container shell 1 made of metal, the shell 1 is made of stainless steel, and a continuous, uniform and seamless aluminum-carbon composite lining 2 is prepared on the inner wall of the container shell, the aluminum-carbon The composite material contains 80wt.% metal aluminum powder and 20% carbon black (that is, carbon powder). The preparation method is: take a stainless steel cylinder with one end open and one end closed (the specific size depends on the battery capacity), and the stainless steel cylinder The inner wall is first cleaned and sandblasted, and the metal aluminum powder and carbon black are evenly mixed and then added to the metal mold tooling in the cylinder, and then hot-pressed at a temperature of 590 ° C and a pressure of 30 MPa for 1 hour in an inert atmosphere to obtain the product. The metal aluminum particles 3 in the prepared aluminum-carbon composite material constitute the ma...

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PUM

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Abstract

The invention relates to a positive electrode container of a sodium-sulfur battery, which comprises a container shell made of metal, the inner wall of the container shell is prepared with a continuous layer of aluminum-carbon composite material lining, and the container shell is open at one end and closed at the other end In a cylindrical structure, the aluminum-carbon composite material includes metal aluminum powder and carbon material, wherein the metal aluminum powder is 30-90wt.%, and the rest is carbon material. The inner lining of the aluminum-carbon composite material of the positive electrode container of the sodium-sulfur battery has good corrosion resistance and electrical conductivity, which is beneficial to improving the safety and service life of the sodium-sulfur battery.

Description

technical field [0001] The invention relates to the technical field of energy storage, in particular to a positive electrode container of a sodium-sulfur battery. Background technique [0002] The sodium-sulfur battery is a secondary battery that uses the sodium ion conductor beta-alumina as the electrolyte as the solid electrolyte, and uses elemental sodium and sulfur as the negative and positive electrodes, respectively. Since the sodium-sulfur battery was invented by the Ford company of the United States in 1967, it has attracted the attention of countries all over the world in recent decades and is regarded as a high-energy-density energy storage battery. Sodium-sulfur batteries have broad application prospects and huge market potential in the field of energy storage technology. [0003] Liquid sulfur and sodium polysulfide (Na 2 S x ) is highly corrosive and will cause corrosion of the positive electrode container, which is the main cause of battery performance degra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/38
CPCH01M10/3909H01M10/3954Y02E60/10Y02P70/50
Inventor 唐光盛林久刘虹邑方源
Owner DONGFANG ELECTRIC CORP LTD