Electrochemical behavior of LiFePO4 cathode materials in the presence of anion adsorbents

被引:3
作者
Wang, Xiaohong [1 ,2 ]
Yoshitake, Hideya [3 ]
Masaki, Yoshio [3 ]
Wang, Hongyu [1 ,4 ]
机构
[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Electroanalyt Chem, Changchun 130022, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
[3] Yamagata Univ, Fac Engn, Yonezawa, Yamagata 9928510, Japan
[4] Changzhou Inst Enery Storage Mat & Devices, Changzhou 213000, Peoples R China
关键词
Lithium Iron phosphate; Activated carbon; Polyaniline; Polypyrrole; Anion adsorbents; PHASE-CHANGE; LITHIUM;
D O I
10.1016/j.electacta.2014.03.050
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
The poor rate capability is a major problem of olivine-structured lithium iron phosphate (LFP) cathode material in lithium-ion batteries due to its low electric conductivity and sluggish lithium diffusion. Other than the custom strategies to solve this problem like carbon coating and nano-size treatment, we simply mixed LFP with some anion adsorbents, which can store anions from the electrolytes swiftly. The effect of anion adsorbents on the performance of LFP composite electrode has been investigated by cyclic voltammetric tests and the corresponding apparent lithium diffusion coefficients have been measured. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码:532 / 536
页数:5
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