Preparation method of tin sulfide-carbon nanotube composite electrode material

A carbon nanotube composite and tin disulfide technology, which is applied in battery electrodes, secondary batteries, circuits, etc., can solve the problems of cumbersome preparation process and achieve the effects of simple preparation method, regular shape and excellent cycle performance
CN107394129AInactive Publication Date: 2017-11-24SHAANXI UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
SHAANXI UNIV OF SCI & TECH
Publication Date
2017-11-24
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a preparation method of a tin sulfide-carbon nanotube composite electrode material. The preparation method comprises the steps of 1, adding a certain amount of a carboxylation multiwalled carbon nanotube into a certain amount of absolute ethyl alcohol, and performing ultrasonic dispersion for 2.5-3.5 hours to obtain a dispersion liquid A; 2, weighing a certain amount of tin chloride pentahydrate into the dispersion liquid A in the step 1, performing stirring for 10-30 minutes, adding a certain amount of thioacetamide under a stirring state, and performing stirring for 30-40 minutes to obtain a solution B; 3, transferring the solution B obtained in the step 2 to a reaction kettle with a polytetrafluoroethylene lining, performing hydrothermal reaction under a certain temperature, naturally cooling to a room temperature after reaction is completed to obtain a deep green precipitant; and 4, collecting the deep green precipitant obtained in the step 3, sequentially and centrifugally washing the deep green precipitant with deionized water and the absolute ethyl alcohol, and placing the deep green precipitant in a vacuum drying box for drying to obtain the tin sulfide-carbon nanotube composite electrode material. The tin sulfide-carbon nanotube composite electrode material is simple in preparation process.
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Description

technical field

[0001] The invention belongs to the technical field of preparation methods of electrode materials, and relates to a preparation method of tin disulfide-carbon nanotube composite electrode materials. Background technique

[0002] The problems of environmental pollution and energy shortage are becoming more and more serious, and people urgently need to find an efficient, clean and sustainable new energy. New energy devices such as lithium-ion batteries have become popular in the research field due to their high energy density, good cycle stability, long life, clean and pollution-free and many other excellent characteristics. As one of the most important components of lithium-ion batteries, negative electrode active materials have become the key to the development of lithium-ion batteries. Due to its high lithium storage capacity (645mAh g -1 ) has received extensive attention from the battery material community.

[0003] However, tin disulfide, as the anode ...

Claims

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