Preparation method of nickel foam loaded cobalt monoxide nanomaterials with different shapes

Abstract

The invention discloses a method for preparing cobalt monoxide nanomaterials with different shapes loaded on foamed nickel, which includes: cleaning the sheet-shaped nickel foam in an ultrasonic cleaning machine, and placing the cleaned foamed nickel in a drying oven for drying ; Disperse the cobalt chloride hexahydrate powder into the dispersing solvent added with urea, and form a suspension with magnetic stirring at room temperature; Put it into the high-pressure hydrothermal reaction kettle obliquely, seal the high-pressure hydrothermal reaction kettle, place the high-pressure hydrothermal reaction kettle in a dry box, keep it warm at 160-200 degrees Celsius for 15-18 hours, and then cool it to room temperature naturally; Take out the nickel foam in the high-pressure hydrothermal reaction kettle, place it in an ultrasonic cleaning machine for cleaning, and then dry it in a vacuum drying oven to obtain a precursor; and calcining the precursor, the calcination temperature is set at 400-520 degrees Celsius, Calcination time is set to 3 to 4 hours.

Description

Preparation method of nickel foam supported cobalt monoxide nanomaterials with different morphologies technical field The present invention relates to a kind of negative electrode material of lithium ion battery, relate in particular to foam nickel-loaded cobalt monoxide nanomaterials. Preparation. Background technique With the continuous development of the automobile industry, the exhaustion of non-renewable resources such as oil is becoming more and more serious, and the Environmental pollution caused by resources has also become one of the key issues of global concern. Therefore, to develop a new generation of high-performance, environmentally friendly and green Colored chemical power is an important part of solving sustainable development. Lithium-ion battery is an efficient new green storage energy devices with high energy density, high operating voltage, low self-discharge, long cycle life, good safety performance and no memory effect It is an ideal chemica...

AI Technical Summary

Problems solved by technology

However, the three-dimensional porous carbon framework / CoO composite material prepared by this method is used as the anode material of lithium-ion batteries, and the initial discharge capacity is only 700mAh / g, which cannot meet the needs of high-capacity power batteries. The main reason for the low capacity is the material itself. Poor conductivity, which affects the transport of ions and electrons

Images