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Title: Microstructure and electrochemical properties of the HT-LiCoO2/La2/3–xLi3xTiO3 solid electrolyte interfaces
Authors: Kishida, Kyosuke  kyouindb  KAKEN_id  orcid (unconfirmed)
Wada, Naoyuki
Yamaguchi, Yuji
Inui, Haruyuki  kyouindb  KAKEN_id
Demura, Masahiko
Iriyama, Yasutoshi
Ogumi, Zempachi
Author's alias: 岸田, 恭輔
Issue Date: Aug-2010
Publisher: Materials Research Society
Journal title: Journal of Materials Research
Volume: 25
Issue: 8
Start page: 1583
End page: 1587
Abstract: Three different types of HT-LiCoO2/lithium lanthanum titanate (LLT) assemblies were produced by depositing an HT-LiCoO2 cathode on polycrystalline LLT with various surface finishes, to investigate the effects of the HT-LiCoO2/LLT interface structure on the electrochemical properties of the assemblies. An amorphous layer is confirmed to be introduced by Ar ion irradiation to crystalline LLT. The HT-LiCoO2/LLT assembly composed of the ion-irradiated LLT exhibits good cycle stability and relatively low apparent interface resistivity. These results indicate that the introduction of an amorphous LLT layer by surface modification of crystalline LLT is very effective in improving the structural stability and lithium-ion conductivity of the interface between HT-LiCoO2 and crystalline LLT.
Rights: © 2010 Materials Research Society
DOI(Published Version): 10.1557/jmr.2010.0203
Appears in Collections:Journal Articles

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