Patent ID: 8940436
Filing Date: 2015-01-27
Classification: C08F,H01M,Y02E,Y02P,Y02T

Abstract:
1. A method of manufacturing sulfur-modified polyacrylonitrile, comprising: mixing a base powder comprising sulfur powder and polyacrylonitrile powder; heating the base powder to a temperature of from 250 to 500 degree Celsius under a nonoxidative atmosphere while preventing the effluence of sulfur vapor to obtain a crude sulfur-modified polyacrylonitrile; cooling the crude sulfur-modified polyacrylonitrile; and heating the cooled crude sulfur-modified polyacrylonitrile to a temperature of from 150 to 400 degree Celsius under a nonoxidative atmosphere to obtain a sulfur-modified polyacrylonitrile.