Bibliographic Details
| Title: |
Spectroscopic studies of the structural transitions in positive electrodes for lithium batteries |
| Authors: |
Julien, C.M.1 cjul@ccr.jussieu.fr, Massot, M.2 |
| Source: |
Journal of Power Sources. Jun2003, Vol. 119-121, p743. 6p. |
| Subjects: |
Manganese dioxide electrodes, Lithium cells |
| Abstract: |
We present the vibrational features of MnO2, Li0.33MnO2, LixCoO2 and LixMn2O4 used as positive electrode materials in lithium batteries. Raman and FTIR spectroscopies yield a reliable description of lattice when either crystalline disorder or phase transition due to Li insertion is expected. The local arrangement in the γ-MnO2 structure is investigated as a function of the pyrolusite intergrowth rate. The phase evolution in LixCoO2 and LixMn2O4 is studied as a function of the degree of deintercalation. [Copyright &y& Elsevier] |
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| Database: |
Engineering Source |
