Synthesis and electrochemical performance of LiMnPO4 /C composites cathode materials

被引：0
|
作者：
ZHONG Shengkui a
机构：
来源：
Rare Metals | 2012年 / 31卷 / 05期
基金：
中国国家自然科学基金;
关键词：
lithium-ion battery; cathode material; carbon coating; LiMnPO~4;
D O I：
暂无
中图分类号：
O614.111 [锂Li];
学科分类号：
摘要：
LiMnPO/C composites were synthesized via solid-state reaction with different carbon sources: sucrose, citric acid and oxalic acid. The sam- ples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and electrochemical performance test. The results of XRD reveal that carbon coating has no effect on the phase of LiMnPO. The LiMnPO/C synthesized at 600 °C with citric acid as carbon source shows an initial discharge capacity of 117.8 mA·hg~-1 at 0.05 C rate. After 30 cycles, the capacity remains 98.2 mAh·g~-1 . The improved electrochemical properties of LiMnPO/C is attributed to the decomposition of organic acid during the sintering process.
引用
收藏
页码：474 / 478
页数：5
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