NDLI: Electrochemical study on lithium iron phosphate/hard carbon lithium-ion batteries

Content Provider	Springer Nature Link
Author	Liao, Xiangfei Yu, Ji Gao, Lijun
Copyright Year	2011
Abstract	The electrochemical performances of lithium iron phosphate (LiFePO4), hard carbon (HC) materials, and a full cell composed of these two materials were studied. Both positive and negative electrode materials and the full cell were characterized by scanning electron microscopy, transmission electron microscopy, charge–discharge tests, and alternating current (a.c.) impedance techniques. Experimental results show that the LiFePO4/HC full cell exhibits a gradually decreased cell voltage, and it is capable of delivering a reversible discharge capacity of 122.1 mAh g−1 at 0.2-C rate. At the higher rate of 10 C, the efficiency of the full cell remains almost unchanged from that of 0.2 C. Furthermore, the LiFePO4/HC battery demonstrated a long life of 2,450 cycles with 40% of capacity change at a 10-C high rate. The internal resistance of the full cell is rather low as it is revealed from a.c. impedance measurements. These properties make the LiFePO4/HC battery an attractive option for high rate and long cycle life power applications.
Starting Page	423
Ending Page	428
Page Count	6
File Format	PDF
ISSN	14328488
Journal	Journal of Solid State Electrochemistry
Volume Number	16
Issue Number	2
e-ISSN	14330768
Language	English
Publisher	Springer-Verlag
Publisher Date	2011-04-05
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Lithium iron phosphate Hard carbon Lithium-ion battery Energy Storage Physical Chemistry Analytical Chemistry Condensed Matter Physics Characterization and Evaluation of Materials Electrochemistry
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Materials Science Electrical and Electronic Engineering Electrochemistry

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