电源技术2012，Vol.36Issue(12)：1787-1789,3.
微波合成法制备LiFePO4及其电化学性能
Electrochemical performance of LiFePO4 prepared by microwave-synthesis for lithium-ion battery
张海峰 1孙哲 2陈明军3
作者信息
- 1. 中航锂电(洛阳)有限公司,河南洛阳471000
- 2. 凯迈嘉华(洛阳)新能源有限公司,河南洛阳471000
- 3. 云南黄金矿业集团,云南昆明650224
- 折叠
摘要
Abstract
The positive materials LiFePO4 were synthesized by microwave-synthesis method prepared by precursor with Li2C2O4, FeC2O4, NH4H2PO4 as the raw materials respectively, and benzanthracene copolymer as reducing agent. The products were characterized by scanning electron microscopy (SEM). The electrochemical properties of samples were investigated by constant current charge/discharge. The results show that the sample synthesized at 650 ℃ is pure olive-type structure LiFePO4 with a particle size of 1-2 μm, and it exhibits an initial discharge specific capacitance of 158.3 mAh/g under 0.2 C rate in the voltage of 2.5-4.2 V, which remain well after 20 cycles. The LiFePO4 prepared with this method has good rate and capacity retention performance.关键词
LiFePO4/锂离子电池/微波合成/电化学性能Key words
LiFePO4/ lithium-ion battery/ microwave-synthesis/ electrochemical performance分类
信息技术与安全科学引用本文复制引用
张海峰,孙哲,陈明军..微波合成法制备LiFePO4及其电化学性能[J].电源技术,2012,36(12):1787-1789,3.
