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Abstract:
Mesoporous FeF3(H2O)0.33 microspheres, hexagonal columns, and β-FeF3 · 3H2O square microrods have been prepared via facile solution methods using polyethylene glycol, oleic acid, and dodecyl trimethyl ammonium chloride as a surfactant, respectively. The as-prepared mesoporous FeF3(H2O)0.33 microspheres exhibits an enhanced lithium storage capacity and excellent cycling stability (159.2 mA h g-1 at 142 mA g-1 after 100 cycles). Even at a high current density of 474 mA g-1, mesoporous FeF3(H2O)0.33 microspheres still deliver a discharge capacity as large as 95.9 mA h g-1 after 100 cycles. This remarkable electrochemical performance can be attributed to the high specific surface area and mesoporous micro-spherical structure, which effectively increase the contact area between the active materials and the electrolyte, reducing the Li-ion diffusion pathway and buffering the volume change during cycling. © 2014 Elsevier Ltd. All rights reserved.
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Electrochimica Acta
ISSN: 0013-4686
Year: 2015
Volume: 151
Page: 355-362
4 . 8 0 3
JCR@2015
5 . 5 0 0
JCR@2023
ESI HC Threshold:265
JCR Journal Grade:1
CAS Journal Grade:2
Cited Count:
SCOPUS Cited Count: 23
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 2
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