Preparation of nano-crystalline LiFe0.97Co0.03O1.95Cl0.05 by solid-state method

Yun Sung Lee, Yang Kook Sun, Koichi Kobayakawa, Yuichi Sato

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Abstract

LiFe0.97Co0.03O1.95Cl0.05 has been synthesized at 150°C using the solid-state method. A Li/LiFeO2 cell as reported previously exhibited a large capacity decline until 15 cycles. To obtain a good cycleability of LiFeO2, Co and Cl ions substituted some Fe and O atoms of the LiFeO2 structure. LiFe-0.97Co0.03O1.95Cl0.05 showed small lattice parameters compared with those of LiFeO2. This material showed a good cycleability with fairly a high discharge capacity of over 134 mAh/g at high current density.

Original languageEnglish
Pages (from-to)642-643
Number of pages2
JournalChemistry Letters
Issue number6
DOIs
StatePublished - 2002 Apr 5

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