Studies on Preparation and Properties of LiFePO4 Cathode Material Modified by Polyacenic Semiconductor Materials for Lithium ion Batteries

被引：0

作者：

Wang, Cunguo ^{[1
]}

Ding, Zhaolong ^{[2
]}

Lu, Naiqun ^{[3
]}

机构：

[1] Qingdao Univ Sci & Technol, Key Lab Rubber Plast, Minist Educ, Qingdao 266042, Peoples R China

[2] Qingdao Univ Sci & Technol, Sch Polymer Sci & Engn, Qingdao 266042, Peoples R China

[3] Qingdao Univ Sci & Technol, Fac Automat & Elect Engn, Qingdao 266042, Peoples R China

来源：

MULTI-FUNCTIONAL MATERIALS AND STRUCTURES III, PTS 1 AND 2 | 2010年 / 123-125卷

关键词：

Lithium iron phosphate; Polyacenic semiconductor materials; Suspension polymerization; Conducting polymers; Lithium ion batteries; POLYMER BATTERY;

D O I：

10.4028/www.scientific.net/AMR.123-125.221

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The composite materials of LiFePO4 powder coated with polyacenic semiconductor materials (PAS) were successful prepared. Effects of the preparation conditions, such as precursor material, annealing temperature et al., on the structure and electrochemical properties of LiFePO4 were studied. SEM images and TG thermogravimetric analysis of the obtained carbon coating microspheres suggest that LiFePO4 powder was successfully encased within the carbon gel microspheres. The electrical conductivity of the composite materials could get to 10(-2) S.cm(-1). It was found that the composite LiFePO4 material exhibits excellent capability with initial discharge capacity more than 210 mAh.g(-1). The discharge capacity goes up to 340 mAh/g after ten times of cycle.

引用

页码：221 / +

页数：2

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