A POM–organic framework anode for Li-ion battery

Yanfeng Yue; Yunchao Li; Zhonghe Bi; Gabriel M. Veith; Craig A. Bridges; Bingkun Guo; Jihua Chen; David R. Mullins; Sumedh P. Surwade; Shannon M. Mahurin; Hongjun Liu; M. Parans Paranthaman; Sheng Dai

doi:10.1039/C5TA06785E

A POM–organic framework anode for Li-ion battery†

Yanfeng Yue,*^ab Yunchao Li,^ac Zhonghe Bi,^a Gabriel M. Veith,^d Craig A. Bridges,^a Bingkun Guo,^a Jihua Chen,^e David R. Mullins,^a Sumedh P. Surwade,^a Shannon M. Mahurin,^a Hongjun Liu,

^a M. Parans Paranthaman^ac and Sheng Dai*^af

Author affiliations

* Corresponding authors

^a Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
E-mail: dais@ornl.gov

^b Department of Biology, Geology and Physical Science, Sul Ross State University, Alpine, Texas 79832, USA
E-mail: yanfeng.yue@sulross.edu

^c The Bredesen Center for Interdisciplinary Research and Graduate Education, University of Tennessee, Knoxville, Tennessee 37996, USA

^d Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA

^e Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA

^f Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, USA

Abstract

Rechargeable Li-ion batteries (LIBs) are currently the dominant power source for portable electronic devices and electric vehicles, and for small-scale stationary energy storage. However, one bottleneck of the anode materials for LIBs is the poor cycling performance caused by the fact that the anodes cannot maintain their integrity over several charge–discharge cycles. In this work, we demonstrate an approach to improving the cycling performance of lithium-ion battery anodes by constructing an extended 3D network of flexible redox active polyoxometalate (POM) clusters with redox active organic linkers, herein described as POMOF. This architecture enables the accommodation of large volume changes during cycling at relatively high current rates. For example, the POMOF anode exhibits a high reversible capacity of 540 mA h g⁻¹ after 360 cycles at a current rate of 0.25C and a long cycle life at a current rate of 1.25C (>500 cycles).

Journal of Materials Chemistry A

A POM–organic framework anode for Li-ion battery†

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A POM–organic framework anode for Li-ion battery

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