A POM–organic framework anode for Li-ion battery

Autor:	David R. Mullins, Bingkun Guo, Craig A. Bridges, Yanfeng Yue, Shannon M. Mahurin, Hongjun Liu, M. Parans Paranthaman, Gabriel M. Veith, Sumedh P. Surwade, Zhonghe Bi, Sheng Dai, Jihua Chen, Yunchao Li
Rok vydání:	2015
Předmět:	Battery (electricity) Long cycle Materials science Renewable Energy Sustainability and the Environment Polyoxometalate General Materials Science Nanotechnology General Chemistry Electronics Current (fluid) Energy storage Ion Anode
Zdroj:	Journal of Materials Chemistry A. 3:22989-22995
ISSN:	2050-7496 2050-7488
Popis:	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).
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3d578e5b29ef8c2b629d2cb893f3ee64 https://doi.org/10.1039/c5ta06785e Zobrazit plný text záznamu