In:
Applied Mechanics and Materials, Trans Tech Publications, Ltd., Vol. 535 ( 2014-2), p. 725-728
Abstract:
LiFePO 4 /C materials were synthesized by spray-drying using FePO 4 ·2H 2 O, LiOH·H 2 O as raw materials, with three kinds of organic carbon sources: soluble starch, crystal sugar and glucose. The particle size, tap density, specific surface area, morphology, structure and electrochemical properties of the LiFePO 4 /C were tested and analyzed. The results indicate that the organic carbon source has no effect on the phase of LiFePO 4 , but has a remarkable influence on the tap density and specific surface area of LiFePO 4 . The LiFePO 4 /C synthesized with crystal sugar and glucose has higher tap density, smaller particle size and specific surface area. The LiFePO 4 /C synthesized with the glucose as the carbon source exhibited the most excellent electrochemical performance. The discharge capacities are 160.6, 148.5 and 114.1mAh/g respectively at 0.1C, 1C and 5C. Under low temperature 253K, the discharge capacity is 56.2% of that at 298K with 0.2C.
Type of Medium:
Online Resource
ISSN:
1662-7482
DOI:
10.4028/www.scientific.net/AMM.535
DOI:
10.4028/www.scientific.net/AMM.535.725
Language:
Unknown
Publisher:
Trans Tech Publications, Ltd.
Publication Date:
2014
detail.hit.zdb_id:
2251882-4
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