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NanoMat 2018
Nano Research & Applications
ISSN: 2471-9838
Page 89
April 26-27, 2018
Rome, Italy
17
th
Edition of International Conference on
Emerging Trends in
Materials Science and
Nanotechnology
Nano Res Appl, Volume:4
DOI: 10.21767/2471-9838-C1-009
N
anomaterials, so often reported by claims of delivering
multifarious properties, have the genuine potential to make a
significant impact on theperformanceof advancedenergystorage
and conversion devices (e.g. batteries, super capacitors, fuel
cells and solar cells), especially in the high-power aspect, as the
reduced dimensions enable far more accessible active surfaces
as well as enhanced diffusion dynamics. Herein, we present our
detailed work on a novel lithiation of amorphous hydrated FePO
4
,
typically FePO
4
-PANI (polyaniline) composite, by a facile H
+
/Li
+
ion exchange that was attentively deduced and studied with the
help of several relevant chemical/physical analytical techniques.
The resultant Li-derivative is proved to be a suitable precursor for
yielding LiFePO
4
/C nanocomposite with ideal structural features
containing highly crystalline LiFePO
4
nanoparticles completely
coated with N-doped conductive carbon. More importantly, the
LiFePO
4
/C nanocomposite is capable of offering outstanding
electrochemical performances for lithium-ion batteries in
terms of high rate capability (~80.3 mAh g-1 at 100) and long-
term cyclability (less than 3% discharge capacity loss over 600
cycles at 10) that were strongly supported by the results of cyclic
voltammetry (CV) and electrochemical impedance spectroscopy
(EIS) tests.
zzhang@jlu.edu.cn sqiu@jlu.edu.cnDesign and develop high performance LiFePO4/C nanocomposites
as cathode materials for rechargeable lithium ion batteries by
cation exchange process
Zongtao Zhang, Runwei Wang
and
Shilun Qiu
Jilin University, China