Effects of ratios of Li2MnO3 and Li(Ni 1/3Mn1/3Co1/3)O2 phases on the properties of composite cathode powders in spray pyrolysis

Mun Yeong Son; Young Jun Hong; Seung Ho Choi; Yun Chan Kang

doi:10.1016/j.electacta.2013.03.200

Effects of ratios of Li₂MnO₃ and Li(Ni _1/3Mn_1/3Co_1/3)O₂ phases on the properties of composite cathode powders in spray pyrolysis

Mun Yeong Son, Young Jun Hong, Seung Ho Choi, Yun Chan Kang

Research output: Contribution to journal › Article › peer-review

37 Citations (Scopus)

Abstract

Composite cathode powders of xLi₂MnO₃-(1 - x)Li(Ni_1/3Mn_1/3Co_1/3)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(Ni_1/3Co_1/3Mn _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(Ni_1/3Mn_1/3Co _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	https://doi.org/10.1016/j.electacta.2013.03.200
Publication status	Published - 2013
Externally published	Yes

Keywords

Cathode material
Composite material
Lithium rich
Spray pyrolysis

ASJC Scopus subject areas

Chemical Engineering(all)
Electrochemistry

Access to Document

10.1016/j.electacta.2013.03.200

Cite this

@article{5892472c7dee427693fa4985687e2001,

title = "Effects of ratios of Li2MnO3 and Li(Ni 1/3Mn1/3Co1/3)O2 phases on the properties of composite cathode powders in spray pyrolysis",

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%.",

keywords = "Cathode material, Composite material, Lithium rich, Spray pyrolysis",

author = "Son, {Mun Yeong} and Hong, {Young Jun} and Choi, {Seung Ho} and Kang, {Yun Chan}",

note = "Funding Information: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea Government (MEST) (No. 2012R1A2A2A02046367 ). This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology ( 2012R1A1B3002382 ).",

year = "2013",

doi = "10.1016/j.electacta.2013.03.200",

language = "English",

volume = "103",

pages = "110--118",

journal = "Electrochimica Acta",

issn = "0013-4686",

publisher = "Elsevier Limited",

}

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

N1 - Funding Information: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea Government (MEST) (No. 2012R1A2A2A02046367 ). This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology ( 2012R1A1B3002382 ).

PY - 2013

Y1 - 2013

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

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JO - Electrochimica Acta

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