Details

Autor(en) / Beteiligte

• Li, Zicheng
• Wang, Chiwei
• Ma, Xiaoling
• Yuan, Liangjie
• Sun, Jutang

Titel

Synthesis, structures and electrochemical properties of LixNi1−xO

Ist Teil von

• Materials chemistry and physics, 2005-05, Vol.91 (1), p.36-39

Erscheinungsjahr

2005

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• LiNiO2 is a promising cathode maerial for lithium secondary batteries. However, stoichiometric LiNiO2 is difficult to synthesize. A series of lithium nickel composite oxides LixNi1-xO (0 < x < or = 0.3) were synthesized by rheological phase reaction method from LiOH * H2O and NiO. The structures were characterized by X-ray diffraction. The composite oxides are cubic with hexagonal super-lattices and their cell volumes have nice linear relationship to the lithium content. The reaction mechanism was investigated: at the beginning of reaction, LiNiO2 is formed rapidly from LiOHH2O and NiO via oxidation and lithium inserting reaction, then LiNiO2 and excess NiO diffuse each other to form LixNi1-xO. The electrochemical properties of the compounds as anode materials for lithium ion batteries were discussed.