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Updated: May 6, 2026
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Published on: November 11, 2013
Preparation and Ni-doping effect of nanosized truncated octahedral LiCoMnO(4) as cathode materials for 5 V li-ion
1Tianjin Key Laboratory of Metal and Molecule Based Material Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Institute of New Energy Material Chemistry, Synergetic Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University , Tianjin 300071, People's Republic of China.
Abstract:
LiCoMnO4 with nanosized truncated octahedral structure was prepared via a modified sol-gel route. The single-crystalline subunits grew completely without serious agglomeration. The growth mechanism was discussed in detail. The sample was tested as cathode materials for 5 V Li-ion batteries. Ni doping was also investigated to decrease the content of Mn(3+) ions and the Mn dissolution, and then the decomposition of electrolyte was inhibited on the cathode surface. LiCo0.9Ni0.1MnO4 exhibited enhanced cyclic stability compared with the pristine LiCoMnO4.
