Synthesis and electrochemical properties of LiFePO₄ single-crystalline nanoplates dominated with bc-planes

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• 作者：Shuyuan Ju ; Hongrui Peng ; Guicun Li ; ^{guicunli@qust.edu.cn} ; Kezheng Chen ; ^{kchen@qust.edu.cn}
• 关键词：Crystal growth ; Lithium ion batteries ; LiFePO4 ; Nanomaterials ; Nanoplates
• 刊名：Materials Letters
• 出版年：2012
• 期刊代码：59_0167577x
• 类别：ms
• 出版时间：1 May, 2012
• 卷：74
• 期：Complete
• 页码：22-25
• 文件大小：558 K

摘要

Olivine LiFePO₄ single-crystalline nanoplates with large exposure of bc-planes have been synthesized by a facile solvothermal method. The thin side of LiFePO₄ nanoplates is along the a-axis, differing from that along b-axis or c-axis reported previously. The thickness, width, and length of LiFePO₄ nanoplates are about 20-30 nm, 120-160 nm, and 120-250 nm, respectively. The synthesis of LiFePO₄ single-crystalline nanoplates dominated with bc-planes is important for understanding the growth habit of LiFePO₄ crystal. After coated with carbon, the LiFePO₄/C composite nanoplates exhibit good electrochemical performances with discharge capacities of 163 (0.1C), 154 (0.5C), 146 (1C), 130 (2C), and 96 mAh g^鈭?#xA0;1 (5C).