LiMnPO4 Nanoplate Grown via Solid-State Reaction in Molten Hydrocarbon for Li-Ion Battery Cathode

Electrochemically active LiMnPO4 nanoplates have been synthesized via a novel, single-step, solid-state reaction in molten hydrocarbon. The olivine-structured LiMnPO4 nanoplates with a thickness of ∼50 nm appear porous and were formed as nanocrystals were assembled and grew into nanorods along the [...

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Bibliographic Details
Published in:Nano letters 2010-08, Vol.10 (8), p.2799-2805
Main Authors: Choi, Daiwon, Wang, Donghai, Bae, In-Tae, Xiao, Jie, Nie, Zimin, Wang, Wei, Viswanathan, Vilayanur V, Lee, Yun Jung, Zhang, Ji-Guang, Graff, Gordon L, Yang, Zhenguo, Liu, Jun
Format: Article
Language:English
Subjects:
Applied sciences
Cross-disciplinary physics: materials science
rheology
Direct energy conversion and energy accumulation
Electrical engineering. Electrical power engineering
Electrical power engineering
Electrochemical conversion: primary and secondary batteries, fuel cells
Exact sciences and technology
Materials science
Nanocrystalline materials
Nanoscale materials and structures: fabrication and characterization
Nanotubes
Physics
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Summary:Electrochemically active LiMnPO4 nanoplates have been synthesized via a novel, single-step, solid-state reaction in molten hydrocarbon. The olivine-structured LiMnPO4 nanoplates with a thickness of ∼50 nm appear porous and were formed as nanocrystals were assembled and grew into nanorods along the [010] direction in the (100) plane. After carbon coating, the prepared LiMnPO4 cathode demonstrated a flat potential at 4.1 V versus Li with a specific capacity reaching as high as 168 mAh/g under a galvanostatic charging/discharging mode, along with an excellent cyclability.
ISSN:1530-6984
1530-6992
DOI:10.1021/nl1007085