Thermodynamic modeling of the LiCoO2-CoO2 pseudo-binary system |
| |
| Authors: | Taichi Abe Toshiyuki Koyama |
| |
| Affiliation: | a National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japanb Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya, Aichi 466-8555, Japan |
| |
| Abstract: | The thermodynamic modeling of the LiCoO2-CoO2 pseudo-binary system, a positive electrode material of Li-ion batteries, was performed using the CALPHAD technique. The O3-LiCoO2 and the O1-CoO2 phases were described using the four-sublattice model with the formula (Li,V a)1/2(Li,V a)1/2(Co)1(O)2, and the three-sublattice model with the formula (Li,V a)1(Co)1(O)2. The H1_3 hybrid phase was treated as a non-stoichiometric compound. The thermodynamic quantities, such as the phase equilibria, formation enthalpies and cell voltage (vs. Li/Li+), were in agreement with data reported in the literature. |
| |
| Keywords: | Order-disorder transition Intercalation compounds Electrochemical potential Secondary battery |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
