公开(公告)号：KR20120060967A

公开(公告)日：2012-06-12

申请号：KR20100094006

申请日：2010-09-29

Applicant: KOREA ELECTRONICS TECHNOLOGY

Inventor： KIM YOUNG JUN ,  SONG JUN HO ,  CHO WOO SUK ,  JEONG YEON UK ,  KIM WON TEA

IPC: H01M4/525 ,  C01G31/00 ,  C01G49/00 ,  H01M10/0525

CPC classification number: C01G31/006 ,  C01P2006/40 ,  H01M4/485 ,  H01M10/0525 ,  Y02E60/122

Abstract: PURPOSE: A negative electrode material for non-aqueous lithium secondary battery is provided to restrain the deterioration due to precipitation of metal lithium, and to obtain capacity and charging/discharging efficiency similar with existing transition metal oxide, or superior. CONSTITUTION: A negative electrode material for non-aqueous lithium secondary battery comprises lithium vanadium metal oxide formed by synthesizing lithium material, vanadium material, and hetero metal material. A manufacturing method of the negative electrode material comprises: a step of forming mixture by mixing lithium material, vanadium material, and the hetero metal material according to LiaVbMcO2(in here, 0.5

Abstract translation: 目的：提供一种用于非水锂二次电池的负极材料，以抑制由于金属锂的沉淀引起的劣化，并且获得与现有的过渡金属氧化物相似的容量和充放电效率，或更优异。 构成：用于非水性锂二次电池的负极材料包括通过合成锂材料，钒材料和异质金属材料形成的锂钒金属氧化物。 负极材料的制造方法包括：通过根据LiaVbMcO 2将锂材料，钒材料和异质金属材料混合形成混合物的步骤（在此，0.5≤a≤1.5,0.9≤b≤1.1 ，0.02 <= c <= 0.09）; 以及通过在惰性气氛或还原性气氛中对该混合物进行多次热处理，形成杂金属被取代的锂钒金属氧化物的工序。