Journal
NANOMATERIALS
Volume 7, Issue 6, Pages -Publisher
MDPI
DOI: 10.3390/nano7060150
Keywords
lithium ion batteries; doping; anode; Li4Ti5O12; full cell
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Funding
- NSFC [51202212]
- Natural Science Foundation of Hebei province [E2014203033]
- open foundation of Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education)
- National Key Basic Research Program of China (973 Program) [2013CB834804]
- Chinese Academy of Sciences [XDB17030300]
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This work reports on the synthesis of rare earth-doped Li4Ti5O12 nanosheets with high electrochemical performance as anode material both in Li half and Li4Ti5O12/LiFePO4 full cell batteries. Through the combination of decreasing the particle size and doping by rare earth atoms (Ce and La), Ce and La doped Li4Ti5O12 nanosheets show the excellent electrochemical performance in terms of high specific capacity, good cycling stability and excellent rate performance in half cells. Notably, the Ce-doped Li4Ti5O12 shows good electrochemical performance as anode in a full cell which LiFePO4 was used as cathode. The superior electrochemical performance can be attributed to doping as well as the nanosized particle, which facilitates transportation of the lithium ion and electron transportation. This research shows that the rare earth doped Li4Ti5O12 nanosheets can be suitable as a high rate performance anode material in lithium-ion batteries.
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