Ternary S600 (BET specific surface area) of lithium battery materials

Because of its good safety and energy density, ternary materials are not inferior to lithium cobalt oxide, so it is known as the most potential replacement material for lithium cobalt oxide.
The ternary material is called ternary, which is actually named after the metal elements inside:
The chemical formula of the ternary material is: Li(NixCoyMnz)O2, wherein X+Y+Z=1, which is also a typical layered structural material;
Compared with lithium cobaltate, some manganese and nickel elements are added. According to the characteristics of these two materials, we can know:
1. Safety performance is improved due to the presence of manganese;
2. Due to the presence of nickel, its processing performance is inferior;
3. The electronic conductance of the material is not as good as lithium cobaltate due to the presence of manganese and nickel;
4. Due to the presence of nickel, the material capacity can be increased.
Therefore, based on the above, the processing properties and chemical properties of the ternary can be roughly known.
In the ternary material, X:Y:Z=1:1:1 This material is the core patent material of 3M. In order to avoid patents, most domestic manufacturers have adopted other proportional structures, such as:
433, 532, 811, etc.;
In terms of elemental composition and lattice structure, 111 is the most stable structure, and foreign technology has once led the way without knowing how many years!
The well-known domestic 111 structure is Yuyao Jinhe's S600, and its parameters are as follows:
D50: about 11.0;
PH value: about 10.7
BET specific surface area: about 0.33 (the BET specific surface area of ​​the ternary material is tested by the 3H-2000 series BET specific surface area tester, and the 3H-2000 series BET specific surface area tester has the first market share in the battery material field, and the test accuracy is high. , reproducible, obtained a number of patents for specific surface area testers, supporting instruments for the National Innovation Fund.)
Tap density: 2.25;
XRD: the peak is good, no abnormal peak, consistent with the layered structure;
The capacity of the gram is: 145--150mAh/g, the design of the general flexible package is 145, and the inside of the cylinder can be designed according to 148;
Compaction density: The maximum compaction can reach 3.60, and the general design is 3.50.
A relatively mature and stable material.