公开(公告)号：KR1020090019590A

公开(公告)日：2009-02-25

申请号：KR1020070084140

申请日：2007-08-21

Applicant: 전남대학교산학협력단

Inventor： 김재국 ,  박찬우 ,  김동한 ,  임진섭 ,  강정원 ,  김은정 ,  안효열

IPC: H01M4/50 ,  H01M4/52 ,  H01M4/48

CPC classification number: H01M4/505 ,  C01G45/12 ,  C01P2006/40 ,  H01M4/131 ,  H01M4/485 ,  H01M4/525 ,  H01M10/0525 ,  Y02E60/122

Abstract: A cathode material of a lithium-ion battery and a manufacturing method thereof is provided to realize high-capacity while suppressing transition to a spinel phase by bonding oxygen through the partial substitution of transition metal having low valent metal in a LiM'M''O3 structure, or model metal. A method for manufacturing a cathode material of a lithium secondary battery comprises (S110) a step for manufacturing a lithium precursor, M' precursor and M'' precursor by dissolving the lithium precursor, M' precursor and M'' precursor in distilled water respectively; (S120) a step for manufacturing the M'M'' precursor solution by adding M'' precursor solution in M' precursor; (S130) a step for manufacturing the lithium M'M'' precursor solution by adding the lithium precursor solution in the M'M'' precursor solution; (S140) a step for agitating the lithium M'M'' precursor solution; (S150) a step for obtaining parent powder by putting the agitated lithium M'M'' precursor solution in an oven, and evaporating water from the M'M'' precursor solution; (S160) a step for pulverizing the parent powder and to heating it to the first temperature in the atmosphere; (S170) a step for heating the parent powder at the second temperature higher than the first temperature and cooling it; and (S180) a step for obtaining a cathode material of a lithium secondary battery by washing the cooled parent powder with distilled water and drying the washed parent powder.

Abstract translation: 提供锂离子电池的正极材料及其制造方法，通过在LiM'M'O3中部分取代低价金属的过渡金属，通过键合氧而抑制向尖晶石相的转变，实现高容量 结构或模型金属。 锂二次电池的正极材料的制造方法包括：（S110）分别将锂前体，M'前体和M'前体分别溶解在蒸馏水中的锂前体，M'前体和M“前体的制造工序 ; （S120）通过在M'前体中添加M前体溶液来制造M'M前体溶液的步骤; （S130）通过在M'M前体溶液中添加锂前体溶液来制造M'M前体溶液的步骤; （S140）搅拌所述锂M'M前体溶液的步骤; （S150）通过将搅拌的M'M'M前体溶液置于烘箱中并从M'M前体溶液中蒸发水来获得母体粉末的步骤; （S160）将母体粉末粉碎并将其加热到大气中的第一温度的步骤; （S170）在高于第一温度的第二温度下加热母体粉末并冷却的步骤; 和（S180）通过用蒸馏水洗涤冷却的母体粉末并干燥洗涤的母体粉末来获得锂二次电池的阴极材料的步骤。

公开(公告)号：KR1020090019887A

公开(公告)日：2009-02-25

申请号：KR1020090008631

申请日：2009-02-03

Applicant: 전남대학교산학협력단

Inventor： 김재국 ,  박찬우 ,  김동한 ,  임진섭 ,  강정원 ,  김은정 ,  안효열

IPC: H01M4/04 ,  H01M4/48 ,  H01M10/36

CPC classification number: C01G51/44 ,  C01P2006/40 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  Y02E60/12

Abstract: A cathode material of a lithium secondary battery and a manufacturing method thereof are provided to realize high-capacity while suppressing transition to a spinel phase during several times cycle process through the partial substitution of transition metal having low valent metal in a LiM'M"O3 structure, or model metal. A method for manufacturing a cathode material of a lithium secondary battery comprises (S110) a step for obtaining a lithium precursor, M' precursor and M'' precursor by dissolving the lithium precursor, M' precursor and M'' precursor in distilled water respectively; (S120) a step for obtaining the M'M'' precursor solution by adding M'' precursor solution in M' precursor; (S130) a step for obtaining the lithium M'M'' precursor solution by adding the lithium precursor solution in the M'M'' precursor solution; (S140) a step for agitating the lithium M'M'' precursor solution; (S150) a step for obtaining parent powder by putting the agitated lithium M'M'' precursor solution in an oven, and evaporating water from the M'M'' precursor solution; (S160) a step for pulverizing the parent powder and to heating it to the first temperature in the atmosphere; (S170) a step for heating the parent powder at the second temperature higher than the first temperature and cooling it; and (S180) a step for obtaining a cathode material of a lithium secondary battery by washing the cooled parent powder with distilled water and drying the washed parent powder.

Abstract translation: 提供锂二次电池的正极材料及其制造方法，通过在LiM'M“O 3中部分取代低价金属的过渡金属，在几次循环过程中抑制向尖晶石相的转变，实现高容量 锂二次电池的正极材料的制造方法包括：（S110）通过将锂前体，M'前体和M'前体溶解来获得锂前体，M'前体和M“前体的工序， （S120）通过在M'前体中添加M前体溶液来获得M'M前体溶液的步骤（S130）获得M'M前体溶液的步骤 通过在M'M前体溶液中加入锂前体溶液;（S140）搅拌M'M前体溶液的步骤;（S150）通过将搅拌的锂M'M “前体解决方案 n，并从M'M'前体溶液蒸发水; （S160）将母体粉末粉碎并将其加热到大气中的第一温度的步骤; （S170）在高于第一温度的第二温度下加热母体粉末并冷却的步骤; 和（S180）通过用蒸馏水洗涤冷却的母体粉末并干燥洗涤的母体粉末来获得锂二次电池的阴极材料的步骤。