A novel nano structured LiFePO4/C composite as cathode for Li-ion batteries

被引：25
|
作者：
Zhang, Huang [1 ]
Liu, Dong [2 ]
Qian, Xiuzhen [1 ]
Zhao, Chongjun [1 ]
Xu, Yunlong [1 ]
机构：
[1] E China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai Key Lab Adv Polymer Mat, Key Lab Ultrafine Mat,Minist Educ, Shanghai 200237, Peoples R China
[2] Univ Texas Arlington, Dept Mat Sci & Engn, Arlington, TX 76019 USA
来源：
JOURNAL OF POWER SOURCES | 2014年 / 249卷
关键词：
LiFePO4; Carbon aerogel; Nanowire; Cathode; High rate; HIGH-RATE CAPABILITY; ENERGY-STORAGE; LITHIUM; PERFORMANCE; SHELL;
D O I：
10.1016/j.jpowsour.2013.10.109
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A novel network LiFePO4/C composite was prepared by mixing precursor solution with carbon aerogel (CA) via a simple solution impregnation method, characterized by XRD, SEM, EDS and electrochemical analysis. The results revealed that the LiFePO4 nanowire forming on the ektexine of CA intertwined with LiFePO4/CA particles and formed a special web structure. The initial discharge capacity was improved to be 139.3 mAh g(-1), at 10 C and the capacity retention is near 100% after 50 cycles. The web structure could improve electron transport and electrochemical activity effectively. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：431 / 434
页数：4
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