公开(公告)号：US20150380722A1

公开(公告)日：2015-12-31

申请号：US14650972

申请日：2013-11-12

Applicant: UMICORE ,  UMICORE KOREA LTD.

Inventor： Maxime BLANGERO ,  KyuBo KIM ,  Da-In CHOI

IPC: H01M4/131 ,  H01M4/525 ,  C01G51/00 ,  H01M4/36

CPC classification number: H01M4/131 ,  C01G51/42 ,  C01P2002/72 ,  C01P2004/51 ,  C01P2004/53 ,  C01P2004/61 ,  C01P2006/11 ,  C01P2006/12 ,  C01P2006/40 ,  H01M4/366 ,  H01M4/485 ,  H01M4/525 ,  H01M10/052 ,  H01M2004/028 ,  H01M2220/30

Abstract: A lithium metal oxide powder for use as a cathode material in a rechargeable battery, consisting of a core material and a surface layer, the core having a layered crystal structure consisting of the elements Li, a metal M and oxygen, wherein the Li to M molar ratio is between 0.98 and 1.01, and preferably between 0.99 and 1.00, wherein the metal M has the formula M=Co1-aM′a, with 0≦a≦0.05, wherein M′ is either one or more metals of the group consisting of Al, Ga and B; and the surface layer consisting of a mixture of the elements of the core material and inorganic N- and N′-based oxides, wherein N is either one or more metals of the group consisting of Mg, Ti, Fe, Cu, Ca, Ba, Sn, Sb, Na, Zn, and Si; and wherein N′ is either one or more metals of the group consisting of Y, Zr, Nb, Mo, Ru, Rh, Pd, Ag, Cd, Sc, Ce, Pr, Nd, Gd, Dy, and Er.

Abstract translation: 一种用作可再充电电池中的阴极材料的锂金属氧化物粉末，由芯材和表面层组成，芯具有由元素Li，金属M和氧组成的层状晶体结构，其中Li至M 摩尔比在0.98和1.01之间，优选在0.99和1.00之间，其中金属M具有式M = Co1-aM'a，其中0和nlE; a＆nlE; 0.05，其中M'是一个或多个金属组成的组， 的Al，Ga和B; 由核心材料的元素和无机的N和N'基氧化物的混合物组成的表面层，其中N是Mg，Ti，Fe，Cu，Ca，Ba中的一种或多种金属 ，Sn，Sb，Na，Zn和Si; 并且其中N'是由Y，Zr，Nb，Mo，Ru，Rh，Pd，Ag，Cd，Sc，Ce，Pr，Nd，Gd，Dy和Er组成的组中的一种或多种金属。