公开(公告)号：EP3229294A1

公开(公告)日：2017-10-11

申请号：EP15864385.8

申请日：2015-12-04

申请人： LG Chem, Ltd.

发明人： LEE, Dong Kwon ,  CHO, Seung Beom ,  NHO, Jun Seok ,  MIN, Byung Hyun ,  KIM, Bae Jung

IPC分类号： H01M4/48 ,  H01M4/525 ,  H01M4/505 ,  H01M4/62 ,  H01M10/052

CPC分类号： H01M4/366 ,  C01G53/50 ,  C01P2002/70 ,  C01P2004/04 ,  C01P2006/40 ,  H01M4/0471 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/505 ,  H01M4/525 ,  H01M4/62 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/028 ,  H01M2220/20 ,  Y02E60/122

摘要： The present invention provides a positive electrode active material prepared using a preparation method including mixing a precursor of a metal for a positive electrode active material with a nanosol of a ceramic-based ion conductor to adsorb the nanosol of the ceramic-based ion conductor on the precursor surface, and mixing the nanosol of the ceramic-based ion conductor-adsorbed precursor with a lithium raw material, and heat treating the resultant to prepare a positive electrode active material including lithium complex metal oxide particles, wherein the lithium complex metal oxide present on a surface side of the lithium complex metal oxide particles is doped with a metal element of the ceramic-based ion conductor, and thereby having greatly increased structural stability by the lithium complex metal oxide present on the surface as a metal element forming the ceramic-based ion conductor being uniformly doped, and as a result, capable of significantly enhancing capacity, a rate property and a cycle property of a battery, a method for preparing the same, and a lithium secondary battery including the same.

摘要翻译： 本发明提供一种正极活性物质，该正极活性物质使用包含将正极活性物质用金属的前体与陶瓷系离子导体的纳米溶胶混合，将该陶瓷系离子导体的纳米溶胶吸附于 前体表面，并将陶瓷基离子导体吸附前体的纳米溶胶与锂原料混合，并对所得物进行热处理以制备包含锂复合金属氧化物颗粒的正极活性材料，其中存在于 在锂复合金属氧化物粒子的表面侧掺杂陶瓷系离子传导体的金属元素，由此作为形成陶瓷系的金属元素的表面存在的锂复合金属氧化物的结构稳定性大幅提高 离子导体被均匀掺杂，并且因此能够显着提高容量，速率 电池的性能和循环特性，其制备方法以及包含该电池的锂二次电池。

公开(公告)号：EP2879213A1

公开(公告)日：2015-06-03

申请号：EP14827995.3

申请日：2014-09-30

申请人： LG Chem, Ltd.

发明人： LEE, Dong Kwon ,  CHO, Seung Beom ,  NHO, Jun Seok ,  JANG, Wook

IPC分类号： H01M4/48 ,  H01M4/505 ,  H01M4/525 ,  H01M4/58 ,  H01M10/52 ,  C01B13/14

CPC分类号： H01M4/525 ,  C01G53/50 ,  C01P2004/84 ,  H01M4/366 ,  H01M4/505 ,  H01M10/052

摘要： Provided are a method of manufacturing a cathode active material including a first step of preparing a metal glycolate solution, a second step of mixing lithium-containing transition metal oxide particles and the metal glycolate solution and stirring in a paste state, a third step of drying the paste-state mixture, and a fourth step of performing a heat treatment on the dried mixture, a cathode active material including a metal oxide layer which is manufactured by the above method, and a secondary battery composed of a cathode including the cathode active material.

摘要翻译： 提供一种正极活性物质的制造方法，其包括：制备金属乙醇酸溶液的第一步骤，将含锂过渡金属氧化物颗粒和金属乙醇酸盐溶液混合并以糊状搅拌的第二步骤，第三步骤 糊状态混合物和对干燥混合物进行热处理的第四步骤，包括通过上述方法制造的金属氧化物层的正极活性材料和由包含阴极活性材料的阴极组成的二次电池 。