Method for preparing sodium ion battery by using porous carbon and carbon nanotube composite material generated from rice hulls

• Main Authors: LIU CHENG, XU BOXU, LIU SITONG, LI YONGCHENG, YAO ZHENG, XU ZHENG, LI BIN, ZHANG XIAOFENG
• Format: Patent
• Language: Chinese; English
• Published: 02.07.2024
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMISTRY; COMPOUNDS THEREOF; ELECTRICITY; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The invention relates to the technical field of sodium ion battery preparation materials, in particular to a method for preparing a sodium ion battery by using a porous carbon and carbon nanotube composite material generated by taking rice husks as raw materials, the molar mass of KOH is 1.5-3.5 M, the soaking time of the rice husks is two hours, equipment used for crushing the rice husks is a crusher, equipment used for drying is a drying oven, and the drying oven is used for drying the rice husks. The heating rate of heating after KOH soaking and drying is 5 DEG C/min, the final temperature of heating is 550 DEG C and is kept for two hours, an appliance for heating in the nitrogen atmosphere is a tubular furnace, deionized water and absolute ethyl alcohol are adopted in the rice hull cleaning process, the heating rate of heating after three-dimensional porous carbon is mixed with thiram and melamine is 5 DEG C/min, and the heating temperature is kept for two hours after three-dimensional porous carbon is mi