Superior high rate capability of size-controlled LiMnPO 4 /C nanosheets with preferential orientation

LiMnPO 4 nanosheets for use in lithium-ion battery cathode materials were synthesized using a solvothermal method under a water and ethylene glycol mixed solvent system. Well-dispersed rectangular sheet particles oriented by two different facets, {100} or {010}, were obtained by changing the source...

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Veröffentlicht in:RSC advances 2015, Vol.5 (122), p.100709-100714
Hauptverfasser: Dinh, Hung-Cuong, Mho, Sun-il, Yeo, In-Hyeong, Kang, Yongku, Kim, Dong-Wan
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Mho, Sun-il
Yeo, In-Hyeong
Kang, Yongku
Kim, Dong-Wan
description LiMnPO 4 nanosheets for use in lithium-ion battery cathode materials were synthesized using a solvothermal method under a water and ethylene glycol mixed solvent system. Well-dispersed rectangular sheet particles oriented by two different facets, {100} or {010}, were obtained by changing the source mixing sequence, and the lateral size of each nanosheet could be controlled by adding appropriate amounts of surfactants. Both LiMnPO 4 /C nanosheets with different oriented facets had large discharge capacities and excellent cycle stabilities. Additionally, the LiMnPO 4 /C nanosheets of size (50–100) × 200 nm, with the {010} facet exposed, had an outstanding rate capability at 55 °C, which discharge capacities of 147, 135, 123, and 112 mA h g −1 at 1, 2, 5, and 10C, respectively.
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title Superior high rate capability of size-controlled LiMnPO 4 /C nanosheets with preferential orientation
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