Thermal behavior of Li1-yNiO2 and the decomposition mechanism

Hajime Arai, Shigeto Okada, Yoji Sakurai, Jun Ichi Yamaki

研究成果: Contribution to journalArticle査読

240 被引用数 (Scopus)

抄録

We report the thermal behavior of Li1-yNiO2 up to 300°C which we investigated using thermogravimetry (TG) and differential scanning calorimetry (DSC). The decomposition mechanism was studied using the X-ray diffraction data obtained for the thermally decomposed products. At about 200°C Li1-yNiO2 turned into Li(1-y)/(2-y)Ni1/(2-y)O which has a rock-salt structure. This was accompanied by oxygen evolution. A significant exothermic process was observed for compounds with y ≥ 0.7 and this resulted in products with disordered rock-salt structures. Using these results, we propose a mechanism in which the exothermic behavior is caused by random cation mixing.

本文言語英語
ページ(範囲)295-302
ページ数8
ジャーナルSolid State Ionics
109
3-4
DOI
出版ステータス出版済み - 6 2 1998
外部発表はい

All Science Journal Classification (ASJC) codes

  • 化学 (全般)
  • 材料科学(全般)
  • 凝縮系物理学

フィンガープリント

「Thermal behavior of Li<sub>1-y</sub>NiO<sub>2</sub> and the decomposition mechanism」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル