F-Doped 0.5Li2MnO3 • 0.5LiNi1/3Co1/3Mn1/3O2 High Porous Nanofibers as Cathode Material for Lithium-Ion Battery

被引：2

作者：

Kim, Cheong ^{[1
]}

Bin Yang, Su ^{[1
]}

Yoo, Gi Won ^{[1
]}

Son, Jong Tae ^{[1
]}

机构：

[1] Korea Natl Univ Transportat, Dept Nano Polymer Sci & Engn, Chungju 27469, Chung Buk, South Korea

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2016年 / 16卷 / 08期

关键词：

F-Substitution; 0.5Li(2)MnO(3) center dot 0.5LiNi(1/3)Co(1/3)Mn(1/3)O(2); Electrospinning; Nanofibers; ELECTROCHEMICAL PROPERTIES; FLUORINE; PERFORMANCE; IMPROVEMENT; MN;

D O I：

10.1166/jnn.2016.12522

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this study, F-substituted 0.5Li(2)MnO(3) center dot 0.5LiNi(1/3)Co(1/3)Mn(1/3)O(2) high porous nanofibers were successfully prepared by electrospinning. X-ray diffraction patterns showed that the synthesized materials had layered sigma-NaFeO2-type structure (R-3m); the lattice parameters (a and c of hexagonal setting) and degree of cation mixing and R-factor showed increased fluorine content (x). Cycle retention of 0.5Li(2)MnO(3) center dot 0.5LiNi(1/3)Co(1/3)Mn(1/3)O(2-x)F(x) (x = 0, 0.1, 0.2) high porous nanofibers exhibited 58.1, 62.6, and 64.2%, respectively. At high C-rate (5C), 0.5Li(2)MnO(3) center dot 0.5LiNi(1/3)Co(1/3)Mn(1/3)O(1.8)F(0.2) showed highest discharge capacity. It suggests F-substitution of 0.2 mol cathode material is more stable than pristine cathode material.

引用

页码：8342 / 8346

页数：5

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