Journal
ELECTROCHEMISTRY COMMUNICATIONS
Volume 11, Issue 9, Pages 1807-1810Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2009.07.024
Keywords
Iron hydroxy sulphate; Li-ion batteries; Cathode; Lithium insertion
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Funding
- CNRS
- IFCPAR (Indo-French Centre for the Promotion of Advanced Research)
- LAFICS program
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The monoclinic form of FeOHSO4 was prepared by dehydration of FeSO4 center dot 7H(2)O. We show that reversible insertion of up to similar to-1 Li/f.u. is possible in this compound at an average voltage of 3.2 V. The insertion/deinsertion is a biphasic process. The high voltage plateau, a reversible capacity of 110 mAh/g after 20 cycles and good cycling behavior make this compound an attractive positive electrode material for rechargeable Li-ion batteries, suggesting also that transition metal sulphates need to be explored. (C) 2009 Elsevier B.V. All rights reserved.
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