Nitrogen-doped Li4Ti5O12 nanosheets with enhanced lithium storage properties
作者： Baofeng Wang , Junsheng Wang , Jie Cao , Honghua Ge , Yufeng Tang
DOI: 10.1016/J.JPOWSOUR.2014.05.009
关键词:
摘要: Abstract N-doped Li 4 Ti 5 O 12 nanosheets (NLTO) have been prepared by a simple hydrothermal reaction with further heat treatment at low temperature (500 °C) under NH 3 atmosphere. The effects of the Nitrogen on structure and electrochemical performance are extensively studied. XRD results show that nitrogen doping does not change (LTO) crystal structure. TEM SEM indicate as-synthesized NLTO has an irregular nano-sheet-like size 50–200 nm, which in short + diffusion paths rapid charge transfer reactions due to high electrode–electrolyte interface area. Galvanostatic charge–discharge tests exhibits higher rate capability 151.8 mAh g −1 10 C than LTO (139.1 mAh g 10 C), suggesting N-doping is beneficial improvement high-rate nanosheets.
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