南京工业大学学报(自然科学版)2017,Vol.39Issue(4):26-29,36,5.DOI:10.3969/j.issn.1671-7627.2017.04.005
微反应器共沉淀法制备LiCoPO4/C及其电化学性能
Preparation and electrochemical property of LiCoPO4/C by micro?reactor and co?precipitation method
摘要
Abstract
LiCoPO4,as cathode material,was prepared by micro?reactor and co?precipitation method,and its property was further explored by carbon coating. The prepared samples were characterized by X ray diffraction ( XRD ) , inductively coupled plasma ( ICP ) , field emission scanning electron microscopy (FESEM),transmission electron microscopy (TEM) and electrochemical tests.Results showed that the average particle size of prepared LiCoPO4 was about 200 nm and the best first discharge capacity was obtained for the sample calcined at 650 ℃. After carbon coating,a uniform layer of carbon was observed on the particles, and the first discharge capacity and cycle performance surface of were promoted obviously.The first discharge capacity of LiCoPO4/C composite calcined at 650℃ reached 130 mA·h/g and the capacity remained at 70 mA·h/g after 20 cycles.关键词
锂离子电池/LiCoPO4/碳包覆/微反应器/共沉淀法Key words
Li⁃ion battery/LiCoPO4/carbon coating/micro⁃reactor/co⁃precipitation method分类
信息技术与安全科学引用本文复制引用
余勇,陈云超,王国静,刘晓敏,杨晖..微反应器共沉淀法制备LiCoPO4/C及其电化学性能[J].南京工业大学学报(自然科学版),2017,39(4):26-29,36,5.基金项目
国家自然科学基金(21573109,21206069) (21573109,21206069)
江苏省自然科学基金重点项目(BK2011030) (BK2011030)
江苏高校优势学科建设工程 ()