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Kim, Youngsik
YK Research
Research Interests
  • Ionic conducting ceramic electrolyte membranes, energy conversion and storage materials and devices

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A New Oxyfluorinated Titanium Phosphate Anode for A High-Energy Lithium-Ion Battery

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Title
A New Oxyfluorinated Titanium Phosphate Anode for A High-Energy Lithium-Ion Battery
Author
Ma, ZhaohuiSun, ChunwenLyu, YingchunWang, YueshengKim, YoungsikChen, Liquan
Issue Date
2015-01
Publisher
AMER CHEMICAL SOC
Citation
ACS APPLIED MATERIALS & INTERFACES, v.7, no.2, pp.1270 - 1274
Abstract
Na3[Ti2P2O10F] was synthesized by a hydrothermal method. It has an open framework structure consisting of TiFO5 octahedra and PO4 tetrahedra. The feasibility of Na3[Ti2P2O10F] as an anode material for lithium-ion batteries was first studied. Na3[Ti2P2O10F] exhibits a reversible capacity of more than 200 mAh g-1 at a discharge/charge current rate of 20 mA g-1 (∼0.1 C) and 105 mA g-1 at a discharge/charge current rate of 400 mA g-1 (∼2 C) with a lower intercalation voltage. The result of in situ X-ray diffraction test shows the structural evolution during the first discharge/charge cycle. The structure of Na3[Ti2P2O10F] was kept during discharge/charge with a slight change of the lattice parameters, which indicates a lithium solid solution behavior. (Figure Presented).
URI
https://scholarworks.unist.ac.kr/handle/201301/10965
URL
http://pubs.acs.org/doi/abs/10.1021/am507272x
DOI
10.1021/am507272x
ISSN
1944-8244
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