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Electrochemical properties of a full cell of lithium iron phosphate cathode using thin amorphous silicon anode

J. K. Kim ; G. B. Cho ; H. S. Ryu ; H. J. Ahn ; K. K. Cho ; K. W. Kim ; Aleksandar Matic (Institutionen för teknisk fysik, Kondenserade materiens fysik) ; Per Jacobsson (Institutionen för teknisk fysik, Kondenserade materiens fysik) ; J. H. Ahn
Solid State Ionics (0167-2738). Vol. 268 (2014), Part B, p. 256-260.
[Artikel, refereegranskad vetenskaplig]

Carbon-coated lithium iron phosphate (LiFePO4/C) with uniform carbon coating was synthesized by a mechanical activation method. Silicon negative electrode material was obtained in the form of thin films of amorphous silicon on a Cu foil substrate by vertical deposition technique. The electrochemical performance of the full cell, LiFePO4/C-Si, was tested with 1 M LiPF6 in EC/DMC at 0.5 and 1 C-rates. The cell exhibited an initial discharge capacity of 143.9 mAh g(-1) at 0.5 C-rate at room temperature. A reasonably good cycling performance under a high current density of 1 C-rate could be obtained with the full cell.

Nyckelord: LiFePO4, Silicon, Thin film, Full cell, Lithium-ion battery

Denna post skapades 2015-02-25. Senast ändrad 2015-12-17.
CPL Pubid: 213135


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