Effects of types of drying control chemical additives on the morphologies and electrochemical properties of Li4Ti5O12 anode powders prepared by spray pyrolysis

Seo Hee Ju, Yun Chan Kang

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

The various types of drying control chemical additives are applied to control the morphological and electrochemical characteristics of the Li 4Ti5O12 powders prepared by spray pyrolysis. The Li4Ti5O12 powders obtained from the spray solutions with formamide, N,N-dimethylformamide, N-methylacetamide and 1,4-dioxane have dense structures and fine sizes. On the other hand, the Li 4Ti5O12 powders obtained from the spray solution with glycerol have hollow structure and large size. The Li 4Ti5O12 powders obtained from the spray solutions with formamide, N,N-dimethylformamide and 1,4-dioxane have high initial discharge capacities of 167, 166 and 163 mAh/g at a constant current density of 0.1 C. The discharge capacity of the Li4Ti 5O12 powders obtained from the spray solution with formamide is 95% of the initial discharge capacity after 60 cycles.

Original languageEnglish
Pages (from-to)913-916
Number of pages4
JournalJournal of Alloys and Compounds
Volume506
Issue number2
DOIs
Publication statusPublished - 2010 Sep 17
Externally publishedYes

Fingerprint

Spray pyrolysis
Electrochemical properties
Powders
Drying
Anodes
Dimethylformamide
Glycerol
Current density
formamide

Keywords

  • Chemical synthesis
  • Gas-solid reaction

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Cite this

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title = "Effects of types of drying control chemical additives on the morphologies and electrochemical properties of Li4Ti5O12 anode powders prepared by spray pyrolysis",
abstract = "The various types of drying control chemical additives are applied to control the morphological and electrochemical characteristics of the Li 4Ti5O12 powders prepared by spray pyrolysis. The Li4Ti5O12 powders obtained from the spray solutions with formamide, N,N-dimethylformamide, N-methylacetamide and 1,4-dioxane have dense structures and fine sizes. On the other hand, the Li 4Ti5O12 powders obtained from the spray solution with glycerol have hollow structure and large size. The Li 4Ti5O12 powders obtained from the spray solutions with formamide, N,N-dimethylformamide and 1,4-dioxane have high initial discharge capacities of 167, 166 and 163 mAh/g at a constant current density of 0.1 C. The discharge capacity of the Li4Ti 5O12 powders obtained from the spray solution with formamide is 95{\%} of the initial discharge capacity after 60 cycles.",
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AU - Ju, Seo Hee

AU - Kang, Yun Chan

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N2 - The various types of drying control chemical additives are applied to control the morphological and electrochemical characteristics of the Li 4Ti5O12 powders prepared by spray pyrolysis. The Li4Ti5O12 powders obtained from the spray solutions with formamide, N,N-dimethylformamide, N-methylacetamide and 1,4-dioxane have dense structures and fine sizes. On the other hand, the Li 4Ti5O12 powders obtained from the spray solution with glycerol have hollow structure and large size. The Li 4Ti5O12 powders obtained from the spray solutions with formamide, N,N-dimethylformamide and 1,4-dioxane have high initial discharge capacities of 167, 166 and 163 mAh/g at a constant current density of 0.1 C. The discharge capacity of the Li4Ti 5O12 powders obtained from the spray solution with formamide is 95% of the initial discharge capacity after 60 cycles.

AB - The various types of drying control chemical additives are applied to control the morphological and electrochemical characteristics of the Li 4Ti5O12 powders prepared by spray pyrolysis. The Li4Ti5O12 powders obtained from the spray solutions with formamide, N,N-dimethylformamide, N-methylacetamide and 1,4-dioxane have dense structures and fine sizes. On the other hand, the Li 4Ti5O12 powders obtained from the spray solution with glycerol have hollow structure and large size. The Li 4Ti5O12 powders obtained from the spray solutions with formamide, N,N-dimethylformamide and 1,4-dioxane have high initial discharge capacities of 167, 166 and 163 mAh/g at a constant current density of 0.1 C. The discharge capacity of the Li4Ti 5O12 powders obtained from the spray solution with formamide is 95% of the initial discharge capacity after 60 cycles.

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