Effects of drying control chemical additive on properties of Li4Ti5O12 negative powders prepared by spray pyrolysis

Seo Hee Ju; Yun Chan Kang

doi:10.1016/j.jpowsour.2010.01.067

Effects of drying control chemical additive on properties of Li₄Ti₅O₁₂ negative powders prepared by spray pyrolysis

Seo Hee Ju, Yun Chan Kang

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

23 Citations (Scopus)

Abstract

High-density Li₄Ti₅O₁₂ powders comprising spherical particles are prepared by spray pyrolysis from a solution containing dimethylacetamide (drying control chemical additive) and citric acid and ethylene glycol (organic additives). The prepared powders have high discharge capacities and good cycle properties. The optimum concentration of dimethylacetamide is 0.5 M. The addition of dimethylacetamide to the polymeric spray solutions containing citric acid and ethylene glycol helps in the effective control of the morphology of the Li₄Ti₅O₁₂ powders. At a constant current density of 0.17 mA g^-1, the initial discharge capacities of the powders obtained from the spray solution with and without the organic additives are 171 and 167 mAh g^-1, respectively.

Original language	English
Pages (from-to)	4327-4331
Number of pages	5
Journal	Journal of Power Sources
Volume	195
Issue number	13
DOIs	https://doi.org/10.1016/j.jpowsour.2010.01.067
Publication status	Published - 2010 Jul 1
Externally published	Yes

Keywords

Electrochemical properties
Gas-phase reaction
Lithium titanate
Lithium-ion battery
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.2010.01.067

Cite this

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title = "Effects of drying control chemical additive on properties of Li4Ti5O12 negative powders prepared by spray pyrolysis",

abstract = "High-density Li4Ti5O12 powders comprising spherical particles are prepared by spray pyrolysis from a solution containing dimethylacetamide (drying control chemical additive) and citric acid and ethylene glycol (organic additives). The prepared powders have high discharge capacities and good cycle properties. The optimum concentration of dimethylacetamide is 0.5 M. The addition of dimethylacetamide to the polymeric spray solutions containing citric acid and ethylene glycol helps in the effective control of the morphology of the Li4Ti5O12 powders. At a constant current density of 0.17 mA g-1, the initial discharge capacities of the powders obtained from the spray solution with and without the organic additives are 171 and 167 mAh g-1, respectively.",

keywords = "Electrochemical properties, Gas-phase reaction, Lithium titanate, Lithium-ion battery, Spray pyrolysis",

author = "Ju, {Seo Hee} and Kang, {Yun Chan}",

note = "Funding Information: This work was supported by the Korea Science and Engineering Foundation (KOSEF) grant funded by the Korea government(MEST) (No. 2009-0074023). Copyright: Copyright 2010 Elsevier B.V., All rights reserved.",

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AU - Ju, Seo Hee

AU - Kang, Yun Chan

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N2 - High-density Li4Ti5O12 powders comprising spherical particles are prepared by spray pyrolysis from a solution containing dimethylacetamide (drying control chemical additive) and citric acid and ethylene glycol (organic additives). The prepared powders have high discharge capacities and good cycle properties. The optimum concentration of dimethylacetamide is 0.5 M. The addition of dimethylacetamide to the polymeric spray solutions containing citric acid and ethylene glycol helps in the effective control of the morphology of the Li4Ti5O12 powders. At a constant current density of 0.17 mA g-1, the initial discharge capacities of the powders obtained from the spray solution with and without the organic additives are 171 and 167 mAh g-1, respectively.

AB - High-density Li4Ti5O12 powders comprising spherical particles are prepared by spray pyrolysis from a solution containing dimethylacetamide (drying control chemical additive) and citric acid and ethylene glycol (organic additives). The prepared powders have high discharge capacities and good cycle properties. The optimum concentration of dimethylacetamide is 0.5 M. The addition of dimethylacetamide to the polymeric spray solutions containing citric acid and ethylene glycol helps in the effective control of the morphology of the Li4Ti5O12 powders. At a constant current density of 0.17 mA g-1, the initial discharge capacities of the powders obtained from the spray solution with and without the organic additives are 171 and 167 mAh g-1, respectively.

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KW - Gas-phase reaction

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KW - Lithium-ion battery

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