As shown in Figure 1, the non-graphitic carbon is composed of a small hexagonal network, showing a disordered structure slightly along the c-axis structure. The
①The electrochemical reaction of graphiteDuring the charging process, the carbon material participates in the reduction reaction, and lithium ions are inserted into it to form
The structure of graphite In graphite, the graphite layer is conductive and the carbon atoms on the sp2-hybrid orbitals are layered along the hexagonal plane.
①Metal lithiumLithium metal has a body-centered cubic structure (bcc), has a strong tendency to ionize, and has an atomic radius of 0.76Å. It has small
The development history of anode materialsIn the early stages of the development of negative electrode materials, metal Li was used as a negative electrode material
By solving the Kohn-Sham equation, we can accurately predict the important characteristics of the electrochemical properties of the material. Among the various physical properties of
In the process of researching cathode materials, the allowable discharge voltage must be considered. The design of the cathode material is related to the working
Thermal stability of cathode material: LiCoO2 composite oxide/Ni-Co-Mn ternary oxide/spinel LiMn2O4/LiFePO4 active material As mentioned earlier, the thermal stability of the positive electrode material plays
Basic theory of battery safetyThe safety of the battery mainly involves fire and explosion problems, which are caused by various chemical reactions caused by abnormal
When the charging voltage is higher than 4.3V, the reversible capacity of LiMO2 (M=Co, Ni, Mn) layered oxide will decrease significantly. This is caused by