Metal Fluorides Nanoconfined in Carbon Nanopores as Reversible High Capacity Cathodes for Li and Li-Ion Rechargeable Batteries: FeF2 as an Example

被引：83

作者：

Gu, Wentian ^{[1
]}

Magasinski, Alexandre ^{[1
]}

Zdyrko, Bogdan ^{[2
]}

Yushin, Gleb ^{[1
]}

机构：

[1] Georgia Inst Technol, Dept Mat Sci & Engn, Atlanta, GA 30332 USA

[2] Sila Nanotechnol Inc, Atlanta, GA USA

来源：

ADVANCED ENERGY MATERIALS | 2015年 / 5卷 / 04期

关键词：

conversion; metal halide; mesopores; energy density; lithium; VINYLENE CARBONATE; ELECTRODE MATERIALS; LITHIUM BATTERIES; ACTIVATED CARBON; POLY(DIVINYLBENZENE) MICROSPHERES; PRECIPITATION POLYMERIZATION; ELECTROCHEMICAL PERFORMANCE; GRAPHITE ANODE; FILM; NANOCOMPOSITES;

D O I：

10.1002/aenm.201401148

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：

Highly uniform nanocomposites with nanoconfined iron fluoride (FeF2) are successfully produced using vacuum impregnation of activated carbon powder with a fluoride precursor and subsequent precursor transformation. When confined in carbon nanopores, metal fluoride nanoparticles exhibit dramatically enhanced performance characteristics and cycle life in Li ion batteries. Carbon pore walls accommodate fluoride volume changes during lithiation, prevent physical separation of fluoride particles, and deliver electrons or holes to the electrochemical reaction sites during cell operation. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页数：7

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