Lithium vanadate Li3VO4 (LVO) is known to be as one of the attractive candidates for negative electrode of lithium-ion battery (LIB) with high safety. Although theoretical capacity of LVO attains to 400 mAh g-1, the actual charge and discharge capacities are far below due to its low electrical and ionic conductivity. In this study, we synthesized carbon-coated LVO (C-LVO) via one-step solid state reaction method and examined its properties as a negative electrode for LIB. From XRD measurements and SEM observation, crystal structure of C-LVO was nearly identical with non-coated one but grain size of former was much smaller than latter with same annealing temperature, suggesting that introduction of carbon source in starting materials effectively helps to suppress LVO grain growth during annealing. TEM observation of C-LVO also shows that amorphous carbon layer with its thickness of several ten nm was formed on the surface of LVO grain. In electrochemical testing, C-LVO shows much higher charge and discharge capacities than non-coated LVO.

1.
J.M.
Tarascon
and
M.
Armand
,
Nature
414
,
359
367
(
2001
).
2.
B.
Scrosati
and
J.
Garche
,
Journal of Power Sources
195
,
2419
2430
(
2010
).
3.
J.B.
Goodenough
and
Y.
Kim
,
Journal of Power Sources
196
,
6688
6694
(
2011
).
4.
Z.
Chen
,
I.
Belharouak
,
Y.-K.
Sun
and
K.
Amine
,
Advanced Functional Materials
23
,
959
969
(
2013
).
5.
T.
Ohzuku
,
A.
Ueda
and
N.
Yamamoto
,
Journal of The Electrochemical Society
142
,
1431
1435
(
1995
).
6.
D.
Yoshikawa
,
Y.
Kadoma
,
J.M.
Kim
,
K.
Ui
,
N.
Kumagai
,
N.
Kitamura
and
Y.
Idemoto
,
Electrochimica Acta
55
,
1872
1879
(
2010
).
7.
M.S.
Song
,
A.
Benayad
,
Y.M.
Choia
and
K.S.
Park
,
Chemical Communications
48
,
516
518
(
2011
).
8.
H.
Li
,
X.
Liu
,
T.
Zhai
,
D.
Li
and
H.
Zhou
,
Advanced Energy Materials
3
,
428
432
(
2012
).
9.
W-T.
Kim
,
Y.U.
Jeong
,
Y.J.
Lee
,
Y. J.
Kim
and
J.H.
Song
,
Journal of Power Sources
244
,
557
560
(
2013
).
10.
W-T.
Kim
,
B-K.
Min
,
H.C.
Choi
,
Y.J.
Lee
and
Y.U.
Jeong
,
Journal of The Electrochemical Society
161
,
A1302
A1305
(
2014
).
11.
J.T.
Han
,
Y.H.
Huang
and
J.B.
Goodenough
,
Chemistry of Materials
23
,
2027
2029
(
2011
).
12.
K.
Tang
,
X.K.
Mu
,
P.A.
Aken
,
Y.
Yu
and
J.
Maier
,
Advanced Energy Materials
3
,
49
53
(
2012
).
13.
L.
Fei
,
Y.
Xu
,
X.
Wu
,
Y.
Li
,
P.
Xie
,
S.
Deng
,
S.
Smirnov
and
H.
Luo
,
Nanoscale
5
,
11102
11107
(
2013
).
14.
C.
Jo
,
Y.
Kim
,
J.
Hwang
,
J.
Shim
,
J.
Chun
and
J.
Lee
,
Chemistry of Materials
26
,
3508
3514
(
2014
).
15.
S.
Jayaraman
,
V.
Aravindan
,
P.S.
Kumar
,
W.C.
Ling
,
S.
Ramakrishna
and
S.
Madhavi
,
ACS Applied Materials & Interfaces
6
,
8660
8666
(
2014
).
16.
B.
Guo
,
X.
Yu
,
X.G.
Sun
,
M.
Chi
,
Z.A.
Qiao
,
J.
Liu
,
Y.S.
Hu
,
X.Q.
Yang
,
J.B.
Goodenough
and
S.
Dai
,
Energy & Environmental Science
7
,
2220
2226
(
2014
).
17.
S.
Hu
,
Y.
Song
,
S.
Yuan
,
H.
Liu
,
Q.
Xu
,
Y.
Wang
,
C-X.
Wang
and
Y-Y
Xia
,
Journal of Power Sources
303
,
333
339
(
2016
).
18.
S.
Ni
,
X.
Lv
,
J.
Ma
,
X.
Yang
and
Lulu
Zhang
,
Journal of Power Sources
248
122
129
(
2014
).
19.
Z.
Liang
,
Y.
Zhao
,
L.
Ouyang
,
Y.
Dong
,
Q.
Kuang
,
X.
Lin
,
X.
Liu
,
D.
Yan
,
Journal of Power Sources
252
244
247
(
2014
).
20.
Z.
Liang
,
Z.
Lin
,
Y.
Zhao
,
Y.
Dong
,
Q.
Kuang
,
X.
Lin
,
X.
Liu
,
D
Yan
,
Journal of Power Sources
274
345
354
(
2014
).
This content is only available via PDF.
You do not currently have access to this content.