Micro-sized spherical porous carbon preparation method and method for making supercapacitor through micro-sized spherical porous carbon

• Main Authors: RUAN DIANBO, WU YIHUAN, QIAO ZHIJUN
• Format: Patent
• Language: Chinese; English
• Published: 27.02.2018
• Subjects: BASIC ELECTRIC ELEMENTS; CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE; CHEMISTRY; COMPOUNDS THEREOF; ELECTRICITY; INORGANIC CHEMISTRY; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; METALLURGY; NANOTECHNOLOGY; NON-METALLIC ELEMENTS; PERFORMING OPERATIONS; SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; TRANSPORTING

The invention relates to a micro-sized spherical porous carbon preparation method and a high-specific-energy and high-power supercapacitor made from micro-sized spherical porous carbon, and belongs tothe technical field of supercapacitors. The method comprises the following steps that alginic acid is dissolved into alkali liquor to obtain an alginic acid solution, wherein the alginic acid accounts for 5%-20%; the alginic acid solution is conveyed to an atomizing chamber, atomizing is conducted at 60-120 DEG C, and carbon spheres are obtained through separation; the carbon spheres are heated to 500-1,000 DEG C under the protective atmosphere of nitrogen, heat preservation is conducted for 3-8 h, natural cooling is conducted, and the spherical porous carbon is obtained. The prepared spherical porous carbon is wide in raw material resource, easy to extract, low in price, green, environmentally friendly and free of pollution; the purpose that after spray drying is conducted, activation isconducted directly to for