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US 11,309,543 B2Granted
Electrode active composition with reduced amount of cobalt
AssigneesGuangxi Nowphene Energy Storage Technologies Co., Ltd, Boston Global Technologies, LLC
InventorsGuiqing Huang, Boshan Mo, Youde Mo
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Abstract
The present invention provides an electrode active composition represented by formula (I). Li1+xMnaNibO2+x.LiyCoyO2y.D*C (I), wherein x>0, 0<y<0.1, a+b=1, 1.2≤a/b≤3.0; and D and C are optional dopants and coating agents that contain no cobalt element. The active compositions of Formula (I) exhibit electrochemical properties comparable to those with a higher cobalt amount, such as NCM523 electrode material (LiNi0.5Co0.2Mn0.3O2).
Claims19
An electrode active composition represented by formula (I)
- Li1+xMnaNibO2+x.LiyCoyO2yD*C (I)
- wherein x>0, 0<y<0.1, a+b=1, and 1.2≤a/b≤3.3;
- wherein D is one or more dopants that contain(s) no Cobalt (Co) element, and D may be present or absent (i.e. optional) in formula (I);
- and
- wherein C is one or more coating agents that contain(s) no Cobalt element, and C may be present or absent (i.e. optional) in formula (I).
2 more elements
Dependencies are inferred from the claim text.