Cobalt sulfur compound/sulfur-doped carbon composite material preparation method

Abstract

The invention relates to a preparation method for synthesizing a cobalt sulfur compound / sulfur-doped carbon composite material based on a metal organic framework material. The metal organic frameworkmaterial (CoBDC) and different proportions of sulfur powder are uniformly mixed as a precursor, and the precursor is subjected to pyrolysis under an inert atmosphere to prepare the cobalt sulfur compound / sulfur-doped carbon composite material. The method has the advantages that the preparation process is simple, the synthesis cycle is short, the repeatability is good, the yield is high, industrialproduction is easy to realize and the like, and besides, the material has good electrochemical performance as a lithium ion battery negative electrode material, thereby having an extremely broad application prospect in the lithium ion battery field.

Description

Technical field

[0001] The invention relates to a research on synthesizing a cobalt-sulfur compound / sulfur-doped carbon composite material using a metal organic framework as a precursor and as a negative electrode material of a sodium ion battery, and belongs to the technical field of new energy. Background technique

[0002] In today's society, fossil fuels are still the main source of meeting human energy needs. With the consumption of these energy sources, a large amount of nitrogen oxides, carbon dioxide, and sulfur dioxide will be produced, which will inevitably bring a lot of environments such as haze and global warming. problem. To this end, scientists continue to work hard to develop new technologies. In the past few decades, energy storage and conversion equipment led by lithium-ion batteries has been widely used in various portable electronic equipment and energy vehicles. In order to further meet people's demand for green energy, it is particularly important to develo...

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