Enhancement of the high-rate capability of solid-state lithium batteries by nanoscale interfacial modification

Narumi Ohta, Kazunori Takada, Lianqi Zhang, Renzhi Ma, Minoru Osada, Takayoshi Sasaki

Research output: Contribution to journalArticle

399 Citations (Scopus)

Abstract

The enhancement of the high-rate capability of solid-state Lithium Batteries by nanoscale interfacial modification, was analyzed. The surface of LiCoO2 with Li4Ti5O12 was coated by spray coating. When the sulfide electrolytes were in contact with the oxide electrodes, the large difference between their chemical potentials make their Li+ ions transfer from the sulfide electrolytes to the oxide electrodes. Electrochemical impedance spectroscopy demonstrated the reduction of the interfacial resistance by the interposition of Li4Ti 5O12. Developed space-charge layer on the sulfide side and very large interfacial resistance improved the high-rate capability of solid-state lithium batteries. This enhancement of capability supports the practical application of solid-state lithium batteries and, hence provides a solution to the safety concerns of lithium batteries.

Original languageEnglish
Pages (from-to)2226-2229
Number of pages4
JournalAdvanced Materials
Volume18
Issue number17
DOIs
Publication statusPublished - 2006 Sep 5
Externally publishedYes

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Lithium batteries
Sulfides
Oxides
Electrolytes
Electrodes
Chemical potential
Electrochemical impedance spectroscopy
Electric space charge
Ions
Coatings

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Enhancement of the high-rate capability of solid-state lithium batteries by nanoscale interfacial modification. / Ohta, Narumi; Takada, Kazunori; Zhang, Lianqi; Ma, Renzhi; Osada, Minoru; Sasaki, Takayoshi.

In: Advanced Materials, Vol. 18, No. 17, 05.09.2006, p. 2226-2229.

Research output: Contribution to journalArticle

Ohta, Narumi ; Takada, Kazunori ; Zhang, Lianqi ; Ma, Renzhi ; Osada, Minoru ; Sasaki, Takayoshi. / Enhancement of the high-rate capability of solid-state lithium batteries by nanoscale interfacial modification. In: Advanced Materials. 2006 ; Vol. 18, No. 17. pp. 2226-2229.
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