Hydrothermal Process Synthesizing of LiFePO4 with High-rate Capability and High Tap Density

DOI

10.2991/iea-15.2015.5How to use a DOI?

Keywords

LiFePO4/C; FePO4·2H2O; High-rate performance; High tap density; Lithium ion batteries.

Abstract

LiFePO4/C microspheres were synthesized by a rheological phase method using nanoplates assembled quasi-microspheres of FePO4·2H2O as raw materials, and the FePO4·2H2O precusors were synthesized via a hydrothermal process. The FePO4·2H2O precursors were characterized by XRD and SEM, and the LiFePO4/C were characterized by XRD, SEM, TEM, and charge-discharge test. The LiFePO4/C, with ~2 nm thick amorphous carbon layer coating at the surface, showed excellent high-rate performance: the discharge capacities reaching 116, 96 and 75 mAh g-1 at 10 C, 20 C and 30 C current rates, respectively. Moreover, the LiFePO4/C had a high tap density (1.4 g cm-3). Therefore, this material can be the cathode material for large-scale applications.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Lou Xiaoming
AU  - Hu Bonian
AU  - Huang Jiali
AU  - Li Tanping
PY  - 2015/09
DA  - 2015/09
TI  - Hydrothermal Process Synthesizing of LiFePO4 with High-rate Capability and High Tap Density
BT  - Proceedings of the AASRI International Conference on Industrial Electronics and Applications (2015)
PB  - Atlantis Press
SP  - 15
EP  - 17
SN  - 2352-5401
UR  - https://doi.org/10.2991/iea-15.2015.5
DO  - 10.2991/iea-15.2015.5
ID  - Xiaoming2015/09
ER  -