专利详情

专利名称	PYROLYSIERTES, HARTES KOHLENSTOFF-MATERIAL, HERSTELLUNG UND SEINE VERWENDUNG
申请号	DE20016033196T	专利类型	DE
公开（公告）号	DE60133196(T2)	公开（授权）日	2009.04.30
申请（专利权）人	中国科学院物理研究所	发明（设计）人	WANG QING (CN);LI HONG (CN);HUANG XUEJIE (CN);CHEN LIQUAN (CN)
主分类号	C01B31/00	IPC主分类号	C01B31/00;C01B31/02;C01B31/0020060101A;C01B31/12;C01B31/14;H01M4/0220060101C;H01M4/0220060101A;H01M4/5820060101C;H01M4/5820060101A
专利有效期	PYROLYSIERTES, HARTES KOHLENSTOFF-MATERIAL, HERSTELLUNG UND SEINE VERWENDUNG 至PYROLYSIERTES, HARTES KOHLENSTOFF-MATERIAL, HERSTELLUNG UND SEINE VERWENDUNG	法律状态
说明书摘要	A kind of pyrolyzed hard carbon material, preparation and its applications are involved in this patent. The particle of this material has spherical or ellipsoidal morphology with smooth surface. The average particle size is in the range of 0.05/100 microns and the coarseness is not more than 0.5% of the particle size. The BET specific surface area is from 1 to 4000 square meters per gram. The inner pore size of the material is distributed between 0.3 and 50 nanometers, and the values of Le and La are from 1 to 20 nanometers. The real density of the material is from 0.8 to 2.2 grams per cubic centimeter and the tap density is 0.35/1.5 grams per cubic centimeter. The preparation of the material can be described as follows: firstly the precursors are mixed with solvents for homogenous distribution systems, then the mixtures are put into autoclave for dewatering. ollowing with washing, filtrating, drying and high-temperature treatment, the hard carbon material is obtained. This kind of material has wide utilizations, especially in using as negative electrode materials for secondary lithium batteries.