Preparation and Electrochemical Properties of LiFePO4-PSS Composite Cathode for Lithium-ion Batteries

被引：5
|
作者：
Van Nguyen, Hiep [1 ]
Jin, En Mei [1 ]
Gu, Hal-Bon [1 ]
机构：
[1] Chonnam Natl Univ, Dept Elect Engn, Gwangju 500757, South Korea
来源：
TRANSACTIONS ON ELECTRICAL AND ELECTRONIC MATERIALS | 2012年 / 13卷 / 04期
关键词：
LiFePO4; PSS; Hydrothermal method; Poly (sodium 4-styrenesulfonate);
D O I：
10.4313/TEEM.2012.13.4.177
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this study, we prepared LiFePO4-poly (sodium 4-styrenesulfonate) (PSS) composite by the hydrothermal method and ball-milling process. Different wt% PSS were added to LiFePO4. The cathode electrodes were made from mixtures of LiFePO4-PSS: SP-270: PVDF in a weighting ratio of 70%: 25%: 5%. LiFePO4-PSS powders were characterized by X-ray diffraction (XRD), and scanning electron microscopy (SEM). The electrochemical properties of LiFePO4-PSS/Li batteries were analyzed by cyclic voltammetry, charge/discharge tests, and AC impedance spectroscopy. A Li/LiFePO4PSS battery with 4.75 wt% PSS shows the best electrochemical properties, with a discharge capacity of 128 mAh/g.
引用
收藏
页码：177 / 180
页数：4
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