Li_7-xLa₃Sn_2-xNb_xO₁₂ (x = 0.25-1) cubic lithium garnet

详细信息	查看全文 | 推荐本文 |

• 作者：K. Saranya ; C. Deviannapoorani ; L. Dhivya ; S. Ramakumar ; N. Janani ; Ramaswamy Murugan ; ^{moranamurugan.phy@pondiuni.edu.in}
• 关键词：Ceramics ; Lithium garnet ; Phase transformation ; Cubic phase
• 刊名：Materials Letters
• 出版年：2012
• 期刊代码：59_0167577x
• 类别：ms
• 出版时间：15 June, 2012
• 卷：77
• 期：Complete
• 页码：57-59
• 文件大小：1169 K

摘要

The great demand for batteries with high power and energy densities promotes active research on lithium garnets for advanced safe lithium ion battery technologies. Lithium garnets Li₇La₃M₂O₁₂ (M = Zr, Hf) in cubic phase exhibits two orders of higher conductivity compared to their tetragonal phase. Earlier efforts to stabilize related Li₇La₃Sn₂O₁₂ in cubic phase by solid state method was unsuccessful. In this work, an attempt has been made to synthesise Sn-based lithium garnets in cubic phase. The addition of Al₂O₃ chemically did not help to stabilize Li₇La₃Sn₂O₁₂ in cubic phase through solid state method. Sn-based lithium garnets Li_7-xLa₃Sn_2-xNb_xO₁₂ (x = 0-1) were prepared through solid state reaction method. Li_7-xLa₃Sn_2-xNb_xO₁₂ with x 鈮?#xA0;0.25 stabilizes in cubic structure at sintering temperature around 950 掳C.