Abstract
Composite cathode powders of xLi2MnO3-(1 - x)Li(Ni1/3Mn1/3Co1/3)O2 (0 ≤ x ≤ 1) are prepared by spray pyrolysis. The BET surface areas of the composite powders post-treated at 800 C are 5, 12, 16, 12, 10, and 4 m2 g -1 for x = 0, 0.2, 0.4, 0.5, 0.8, and 1, respectively. The initial discharge capacities of the pure Li(Ni1/3Co1/3Mn 1/3)O2 and Li2MnO3 powders at a constant current density of 25 mA g-1 between 2.0 and 4.8 V are 219 and 27 mAh g-1, respectively. The initial discharge capacities of the composite cathode powders are 242, 283, 291, and 234 mAh g-1 for x = 0.2, 0.4, 0.5, and 0.8, respectively. The discharge capacity of the 0.5Li 2MnO3-0.5Li(Ni1/3Mn1/3Co 1/3)O2 cathode powder decreases from 291 to 266 mAh g -1 by the 50th cycle, giving a capacity retention of 92%.
| Original language | English |
|---|---|
| Pages (from-to) | 110-118 |
| Number of pages | 9 |
| Journal | Electrochimica Acta |
| Volume | 103 |
| DOIs | |
| Publication status | Published - 2013 May 17 |
| Externally published | Yes |
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Keywords
- Cathode material
- Composite material
- Lithium rich
- Spray pyrolysis
ASJC Scopus subject areas
- Chemical Engineering(all)
- Electrochemistry
Cite this
Effects of ratios of Li2MnO3 and Li(Ni 1/3Mn1/3Co1/3)O2 phases on the properties of composite cathode powders in spray pyrolysis. / Son, Mun Yeong; Hong, Young Jun; Choi, Seung Ho; Kang, Yun Chan.
In: Electrochimica Acta, Vol. 103, 17.05.2013, p. 110-118.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Effects of ratios of Li2MnO3 and Li(Ni 1/3Mn1/3Co1/3)O2 phases on the properties of composite cathode powders in spray pyrolysis
AU - Son, Mun Yeong
AU - Hong, Young Jun
AU - Choi, Seung Ho
AU - Kang, Yun Chan
PY - 2013/5/17
Y1 - 2013/5/17
N2 - Composite cathode powders of xLi2MnO3-(1 - x)Li(Ni1/3Mn1/3Co1/3)O2 (0 ≤ x ≤ 1) are prepared by spray pyrolysis. The BET surface areas of the composite powders post-treated at 800 C are 5, 12, 16, 12, 10, and 4 m2 g -1 for x = 0, 0.2, 0.4, 0.5, 0.8, and 1, respectively. The initial discharge capacities of the pure Li(Ni1/3Co1/3Mn 1/3)O2 and Li2MnO3 powders at a constant current density of 25 mA g-1 between 2.0 and 4.8 V are 219 and 27 mAh g-1, respectively. The initial discharge capacities of the composite cathode powders are 242, 283, 291, and 234 mAh g-1 for x = 0.2, 0.4, 0.5, and 0.8, respectively. The discharge capacity of the 0.5Li 2MnO3-0.5Li(Ni1/3Mn1/3Co 1/3)O2 cathode powder decreases from 291 to 266 mAh g -1 by the 50th cycle, giving a capacity retention of 92%.
AB - Composite cathode powders of xLi2MnO3-(1 - x)Li(Ni1/3Mn1/3Co1/3)O2 (0 ≤ x ≤ 1) are prepared by spray pyrolysis. The BET surface areas of the composite powders post-treated at 800 C are 5, 12, 16, 12, 10, and 4 m2 g -1 for x = 0, 0.2, 0.4, 0.5, 0.8, and 1, respectively. The initial discharge capacities of the pure Li(Ni1/3Co1/3Mn 1/3)O2 and Li2MnO3 powders at a constant current density of 25 mA g-1 between 2.0 and 4.8 V are 219 and 27 mAh g-1, respectively. The initial discharge capacities of the composite cathode powders are 242, 283, 291, and 234 mAh g-1 for x = 0.2, 0.4, 0.5, and 0.8, respectively. The discharge capacity of the 0.5Li 2MnO3-0.5Li(Ni1/3Mn1/3Co 1/3)O2 cathode powder decreases from 291 to 266 mAh g -1 by the 50th cycle, giving a capacity retention of 92%.
KW - Cathode material
KW - Composite material
KW - Lithium rich
KW - Spray pyrolysis
UR - http://www.scopus.com/inward/record.url?scp=84877672273&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84877672273&partnerID=8YFLogxK
U2 - 10.1016/j.electacta.2013.03.200
DO - 10.1016/j.electacta.2013.03.200
M3 - Article
AN - SCOPUS:84877672273
VL - 103
SP - 110
EP - 118
JO - Electrochimica Acta
JF - Electrochimica Acta
SN - 0013-4686
ER -