Characteristics of Li3V2(PO4) 3/C powders prepared by ultrasonic spray pyrolysis

You Na Ko; Hye Young Koo; Jung Hyun Kim; Jang Heui Yi; Yun Chan Kang; Jong Heun Lee

doi:10.1016/j.jpowsour.2010.11.086

Characteristics of Li₃V₂(PO₄) ₃/C powders prepared by ultrasonic spray pyrolysis

You Na Ko, Hye Young Koo, Jung Hyun Kim, Jang Heui Yi, Yun Chan Kang, Jong Heun Lee

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

76 Citations (Scopus)

Abstract

Li₃V₂(PO₄)₃ and Li ₃V₂(PO₄)₃/C powders are prepared by ultrasonic spray pyrolysis from spray solutions with and without sucrose. The precursor powders have a spherical shape and the crystal structure of V ₂O₃ irrespective of the concentration of sucrose in the spray solution. The powders post-treated at 700 °C have the pure crystal structure of the Li₃V₂(PO₄)₃ phase irrespective of the concentration of sucrose in the spray solution. The Li ₃V₂(PO₄)₃ powders prepared from the spray solution without sucrose have a non-spherical shape and hard aggregation. However, the Li₃V₂(PO₄)₃/C powders prepared from the spray solution with sucrose have a spherical shape and non-aggregation characteristics. The Li₃V₂(PO ₄)₃ powders prepared from the spray solution without sucrose have a low initial discharge capacity of 122 mAh g^-1. However, the Li₃V₂(PO₄)₃/C powders prepared from the spray solutions with 0.1, 0.3, and 0.5 M sucrose have initial discharge capacities of 141, 130, and 138 mAh g^-1, respectively. After 25 cycles, the discharge capacities of the powders formed from the spray solutions with and without 0.1 M sucrose are 70% and 71% of the initial discharge capacities, respectively.

Original language	English
Pages (from-to)	6682-6687
Number of pages	6
Journal	Journal of Power Sources
Volume	196
Issue number	16
DOIs	https://doi.org/10.1016/j.jpowsour.2010.11.086
Publication status	Published - 2011 Aug 15

Bibliographical note

Funding Information:
This study was supported by a grant (M2009010025) from the Fundamental R&D Program for Core Technology of Materials funded by the Ministry of Knowledge Economy (MKE), Republic of Korea. This study was supported by Seoul R & BD Program (WR090671).

Keywords

Cathode material
Lithium vanadium phosphate
Spray pyrolysis

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.jpowsour.2010.11.086

Cite this

@article{f11c281f00e246a8aa1f5f0890439b51,

title = "Characteristics of Li3V2(PO4) 3/C powders prepared by ultrasonic spray pyrolysis",

abstract = "Li3V2(PO4)3 and Li 3V2(PO4)3/C powders are prepared by ultrasonic spray pyrolysis from spray solutions with and without sucrose. The precursor powders have a spherical shape and the crystal structure of V 2O3 irrespective of the concentration of sucrose in the spray solution. The powders post-treated at 700 °C have the pure crystal structure of the Li3V2(PO4)3 phase irrespective of the concentration of sucrose in the spray solution. The Li 3V2(PO4)3 powders prepared from the spray solution without sucrose have a non-spherical shape and hard aggregation. However, the Li3V2(PO4)3/C powders prepared from the spray solution with sucrose have a spherical shape and non-aggregation characteristics. The Li3V2(PO 4)3 powders prepared from the spray solution without sucrose have a low initial discharge capacity of 122 mAh g-1. However, the Li3V2(PO4)3/C powders prepared from the spray solutions with 0.1, 0.3, and 0.5 M sucrose have initial discharge capacities of 141, 130, and 138 mAh g-1, respectively. After 25 cycles, the discharge capacities of the powders formed from the spray solutions with and without 0.1 M sucrose are 70% and 71% of the initial discharge capacities, respectively.",

keywords = "Cathode material, Lithium vanadium phosphate, Spray pyrolysis",

author = "Ko, {You Na} and Koo, {Hye Young} and Kim, {Jung Hyun} and Yi, {Jang Heui} and Kang, {Yun Chan} and Lee, {Jong Heun}",

note = "Funding Information: This study was supported by a grant (M2009010025) from the Fundamental R&D Program for Core Technology of Materials funded by the Ministry of Knowledge Economy (MKE), Republic of Korea. This study was supported by Seoul R & BD Program (WR090671).",

year = "2011",

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doi = "10.1016/j.jpowsour.2010.11.086",

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T1 - Characteristics of Li3V2(PO4) 3/C powders prepared by ultrasonic spray pyrolysis

AU - Ko, You Na

AU - Koo, Hye Young

AU - Kim, Jung Hyun

AU - Yi, Jang Heui

AU - Kang, Yun Chan

AU - Lee, Jong Heun

N1 - Funding Information: This study was supported by a grant (M2009010025) from the Fundamental R&D Program for Core Technology of Materials funded by the Ministry of Knowledge Economy (MKE), Republic of Korea. This study was supported by Seoul R & BD Program (WR090671).

PY - 2011/8/15

Y1 - 2011/8/15

N2 - Li3V2(PO4)3 and Li 3V2(PO4)3/C powders are prepared by ultrasonic spray pyrolysis from spray solutions with and without sucrose. The precursor powders have a spherical shape and the crystal structure of V 2O3 irrespective of the concentration of sucrose in the spray solution. The powders post-treated at 700 °C have the pure crystal structure of the Li3V2(PO4)3 phase irrespective of the concentration of sucrose in the spray solution. The Li 3V2(PO4)3 powders prepared from the spray solution without sucrose have a non-spherical shape and hard aggregation. However, the Li3V2(PO4)3/C powders prepared from the spray solution with sucrose have a spherical shape and non-aggregation characteristics. The Li3V2(PO 4)3 powders prepared from the spray solution without sucrose have a low initial discharge capacity of 122 mAh g-1. However, the Li3V2(PO4)3/C powders prepared from the spray solutions with 0.1, 0.3, and 0.5 M sucrose have initial discharge capacities of 141, 130, and 138 mAh g-1, respectively. After 25 cycles, the discharge capacities of the powders formed from the spray solutions with and without 0.1 M sucrose are 70% and 71% of the initial discharge capacities, respectively.

AB - Li3V2(PO4)3 and Li 3V2(PO4)3/C powders are prepared by ultrasonic spray pyrolysis from spray solutions with and without sucrose. The precursor powders have a spherical shape and the crystal structure of V 2O3 irrespective of the concentration of sucrose in the spray solution. The powders post-treated at 700 °C have the pure crystal structure of the Li3V2(PO4)3 phase irrespective of the concentration of sucrose in the spray solution. The Li 3V2(PO4)3 powders prepared from the spray solution without sucrose have a non-spherical shape and hard aggregation. However, the Li3V2(PO4)3/C powders prepared from the spray solution with sucrose have a spherical shape and non-aggregation characteristics. The Li3V2(PO 4)3 powders prepared from the spray solution without sucrose have a low initial discharge capacity of 122 mAh g-1. However, the Li3V2(PO4)3/C powders prepared from the spray solutions with 0.1, 0.3, and 0.5 M sucrose have initial discharge capacities of 141, 130, and 138 mAh g-1, respectively. After 25 cycles, the discharge capacities of the powders formed from the spray solutions with and without 0.1 M sucrose are 70% and 71% of the initial discharge capacities, respectively.

KW - Cathode material

KW - Lithium vanadium phosphate

KW - Spray pyrolysis

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