公开(公告)号：KR1020080096093A

公开(公告)日：2008-10-30

申请号：KR1020070041054

申请日：2007-04-27

Applicant: 한국산업기술대학교산학협력단

Inventor： 강찬형 ,  박숙희

IPC: H01M4/36 ,  H01M4/58 ,  H01M4/48

CPC classification number: C01G53/006 ,  C01G45/006 ,  C01G51/42 ,  H01M4/131 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  Y02E60/122

Abstract: A method for preparing a Li(NiCoMn)O2-based active cathode material for lithium secondary battery is provided to reduce heat treatment process and processing time, to save manufacturing costs and to obtain a cathode active material having a uniform composition ratio in the product powder. A method for preparing a Li(NiCoMn)O2-based active cathode material for lithium secondary battery comprises a step for weighting Li2CO3, MnCO3, NiO and Co3O4 as a starting material of the cathode active material for the lithium secondary battery in a stoichiometric ratio; a step for mixing an NaCl grinding aid with the weighed starting material and pulverizing the mixture to the powder; a step for heat-treating the pulverized powder; and a step for removing the NaCl grinding aid from the heat-treated powder.

Abstract translation: 提供了一种制备用于锂二次电池的Li（NiCoMn）O 2类活性阴极材料的方法，以减少热处理工艺和加工时间，从而节省制造成本并获得在产品粉末中具有均匀组成比的正极活性材料 。 制备锂二次电池用Li（NiCoMn）O 2系活性阴极材料的方法包括：以化学计量比将作为锂二次电池用正极活性物质的起始原料的Li 2 CO 3，MnCO 3，NiO，Co 3 O 4进行加权的工序; 将NaCl研磨助剂与称重的原料混合并将混合物粉碎成粉末的步骤; 用于对粉碎粉末进行热处理的步骤; 以及从热处理粉末中除去NaCl研磨助剂的步骤。