Thermal stability of lithium nickel oxide derivatives. Part II: LixNi0.70Co0.15Al0.15O2 and LixNi0.90Mn0.10O2 (x = 0.50 and 0.30). Comparison with LixNi1.02O2 and LixNi0.89Al0.16O2

Marianne Guilmard (1) , Laurence Croguennec (1) , Claude Delmas (1)

1 ICMCB - Institut de Chimie de la Matière Condensée de Bordeaux

he thermal degradation mechanism of LixNi0.70Co0.15Al0.15O2 and LixNi0.90Mn0.10O2 (x = 0.50 and 0.30) was studied by thermal gravimetric analysis coupled with mass spectrometry. Correlation with in situ X-ray diffraction experiments was then achieved to determine the degradation mechanism and to explain the differences in thermal stability observed depending on the material composition. The degradation occurs in two steps: ...

Mots clés: Solid solution; Thermal stability; Lithium nickel oxide

Domaines: Matériaux

Marianne Guilmard, Laurence Croguennec, Claude Delmas. Thermal stability of lithium nickel oxide derivatives. Part II: LixNi0.70Co0.15Al0.15O2 and LixNi0.90Mn0.10O2 (x = 0.50 and 0.30). Comparison with LixNi1.02O2 and LixNi0.89Al0.16O2. Chemistry of Materials, 2003, 15 (23), pp.4484-4493. ⟨10.1021/cm030340u⟩. ⟨hal-00171016⟩