LiMnPO4 Nanoplate Grown via Solid-State Reaction in Molten Hydrocarbon for Li-Ion Battery Cathode

详细信息    查看全文

• 作者：Daiwon Choi ; Donghai Wang ; In-Tae Bae ; Jie Xiao ; Zimin Nie ; Wei Wang ; Vilayanur V. Viswanathan ; Yun Jung Lee ; Ji-Guang Zhang ; Gordon L. Graff ; Zhenguo Yang ; Jun Liu
• 刊名：Nano Letters
• 出版年：2010
• 出版时间：August 11, 2010
• 年：2010
• 卷：10
• 期：8
• 页码：2799-2805
• 全文大小：572K
• 年卷期：v.10,no.8(August 11, 2010)
• ISSN：1530-6992

文摘

Electrochemically active LiMnPO₄ nanoplates have been synthesized via a novel, single-step, solid-state reaction in molten hydrocarbon. The olivine-structured LiMnPO₄ nanoplates with a thickness of 50 nm appear porous and were formed as nanocrystals were assembled and grew into nanorods along the [010] direction in the (100) plane. After carbon coating, the prepared LiMnPO₄ cathode demonstrated a flat potential at 4.1 V versus Li with a specific capacity reaching as high as 168 mAh/g under a galvanostatic charging/discharging mode, along with an excellent cyclability.

Keywords:

Li-ion battery; cathode; LiMnPO₄; surfactant; nanoplate