电源技术2013，Vol.37Issue(8)：1329-1331,3.
PEG用量对LiFePO4/C复合正极材料低温性能的影响
Effects of PEG dosage on low temperature performance of LiFePO4/C composite cathode material
摘要
Abstract
LiFePO4/C were prepared by liquid-phase method using polyethylene glycol (PEG) as carbon source and nano structure control agent,LiH2PO4 as lithium source and Fe (NO3)3·9 H2O as iron source.The charge/discharge test,EIS and scanning electron microscope (SEM) texts show that increasing the dosage of PEG can obtain the products with small particles,high lithium diffusion coefficient,and can improve its low temperature performance obviously.When n(PEG) ∶ n(LFP)=2.00 ∶ 1.00,the specific capacity of the battery can reach 111.7 mAh/g at -20 ℃ of 0.1 C rate,and the capacity fading radio is 1.8％ after 20 cycles.关键词
LiFePO4/聚乙二醇(PEG)/低温Key words
LiFePO4/ polyethylene glycol (PEG)/ low temperature分类
信息技术与安全科学引用本文复制引用
马金波,徐云龙,宋作玉..PEG用量对LiFePO4/C复合正极材料低温性能的影响[J].电源技术,2013,37(8):1329-1331,3.基金项目
上海市科学技术委员会"创新行动计划"(纳米专项0852nm02300) （纳米专项0852nm02300）
