Three-dimensionally ordered macroporous FeF3 and its in situ homogenous polymerization coating for high energy and power density lithium ion batteries
Three-dimensionally ordered macroporous FeF3 and its in situ homogenous polymerization coating for high energy and power density lithium ion batteries
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DOI：
10.1039/c2ee22568a
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发表时间：
2012-09-01
影响因子：
32.5
通讯作者：
Zhang, Xin-bo
中科院分区：
文献类型：
--
作者：
Ma, De-long;Cao, Zhan-yi;Zhang, Xin-bo
以聚苯乙烯（PS）胶体晶体为硬模板，成功合成了由三维有序大孔（3DOM）FeF3和均匀涂层聚（3, 4-乙烯二氧噻吩）（PEDOT）组成的新型杂化纳米结构，并通过新颖的原位聚合方法实现了PEDOT的涂层。特殊的纳米结构在电极中提供了三维、连续且快速的电子和离子路径。令人惊讶的是，3DOM结构和PEDOT均匀涂层的有利组合赋予所制备的杂化纳米结构在室温（RT）2.0 V以上时稳定且高的可逆放电容量高达210 mAh g(-1)，并且在1 A g(-1)的高电流密度下具有120 mAh g(-1)的良好倍率能力，这为高性能的发展开辟了新的机遇。下一代锂离子电池（LIB）。
A new hybrid nanostructure composed of three-dimensionally ordered macroporous (3DOM) FeF3 and an homogenous coating of poly(3, 4-ethylenedioxythiophene) (PEDOT) is successfully synthesized using polystyrene (PS) colloidal crystals as hard template, and the coating of PEDOT is achieved through a novel in situ polymerization method. The special nanostructure provides a three-dimensional, continuous, and fast electronic and ionic path in the electrode. Surprisingly, the advantageous combination of 3DOM structure and homogenous coating of PEDOT endows the as-prepared hybrid nanostructures with a stable and high reversible discharge capacity up to 210 mA h g(-1) above 2.0 V at room temperature (RT), and a good rate capability of 120 mA h g(-1) at a high current density of 1 A g(-1), which opens up new opportunities in the development of high performance next-generation lithium-ion batteries (LIBs).