Free-standing heterogeneous hybrid papers based on mesoporous γ-MnO2 particles and carbon nanotubes for lithium-ion battery anodes

被引:52
作者
Yun, Young Soo [1 ]
Kim, Jung Min [2 ]
Park, Hyun Ho [1 ]
Lee, Jaehoon [1 ]
Huh, Yun Suk [2 ]
Jin, Hyoung-Joon [1 ]
机构
[1] Inha Univ, Dept Polymer Sci & Engn, Inchon 402751, South Korea
[2] KBSI, Div Mat Sci, Taejon 305333, South Korea
基金
新加坡国家研究基金会;
关键词
Hybrid; Anode; Lithium-ion battery; Carbon nanotube; Manganese oxide; NANOSTRUCTURED MATERIALS; MANGANESE OXIDE; HIGH-CAPACITY; ENERGY-CONVERSION; STORAGE DEVICES; ELECTRODES; ROUTE; ROPES; FILMS;
D O I
10.1016/j.jpowsour.2012.11.056
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
Free-standing heterogeneous hybrid papers based on mesoporous gamma-MnO2 particles and acid-treated single-walled carbon nanotubes (a-SWCNTs) for lithium-ion battery anodes are successfully prepared by simple vacuum filtration. The mesoporous gamma-MnO2 particles with high surface areas are well dispersed throughout these anodes by being bound in nanoporous a-SWCNT networks. Furthermore, these anodes exhibit a high electrical conductivity of 2.5 x 10(2) S cm(-1) with high flexibility, which makes them substrate- and binder-free. For 50 wt% mesoporous gamma-MnO2 particle-loaded anodes, a high reversible capacity of 934 mA h g(-1) (0.01-3.0 V) is maintained after 150 cycles. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码:747 / 751
页数:5
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